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Cisco Systems WSC3750X24TS Installation Manual

1. 86585 Catalyst 3750 Switch Hardware Installation Guide P2410 i OL 6336 07 Chapter2 Switch Installation Installing the Switch W Side by Side Mounting in a Rack or on a Wall Figure 2 7 and Figure 2 8 are examples of recommended configurations where the switches are rack or wall mounted side by side Use the 1 meter and 3 meter Stack Wise cables to connect the switches These configuration provide redundant connections Figure 2 7 Stacking up to Eight Switches in a Side by Side Mounting Configuration Figure 2 8 Stacking Nine Switches in a Side by Side Mounting Configuration N kp 8 Q 86825 Installing the Switch This section describes these installation procedures e Rack Mounting page 2 11 e Wall Mounting page 2 27 e Table or Shelf Mounting page 2 30 Rack Mounting A Warning To prevent bodily injury when mounting or servicing this unit in a rack you must take special precautions to en
2. 86822 Figure 2 4 Example of a Partitioned Stack with a Failover Condition 86824 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide Chapter 2 Switch Installation W Planning the Stack Recommended Cabling Configurations This section describes the recommended cabling configurations for stacking the switches Stacking Switches in Vertical Racks or on a Table Figure 2 5 is an example of a recommended configuration using the supplied 0 5 meter Stack Wise cable In this example the switches are stacked in a vertical rack or on a table This configuration provides redundant connections Figure 2 5 Stacking the Switches in a Vertical Rack or on a Table Using the 0 5 meter StackWise Cable 86586 The configuration examples in Figure 2 6 use the 3 meter Stack Wise cable in addition to the supplied 0 5 meter Stack Wise cable This configuration also provides redundant connections Figure 2 6 Stacking the Catalyst 3750 Switches in a Vertical Rack or on a Table Using 0 5 meter and 3 meter StackWise Cables
3. Master LED The Master LED shows the stack master status Table 1 2 lists the LED colors and their meanings Table 1 3 Master LED Port Mode Description Off Switch is not the stack master Green Switch is the stack master or a standalone switch Amber An error occurred when the switch was selecting the stack master switch or a stack error Port LEDs and Modes Each RJ 45 port SFP module slot and XENPAK module slot has a port LED These port LEDs as a group or individually display information about the switch and about the individual ports The port modes determine the type of information that the port LEDs display Table 1 4 lists the mode LEDs and their associated port modes and meanings Table 1 4 Port Mode LEDs Mode LED Port Mode Description STAT Port status The port status This is the default mode DUPLX Port duplex mode The port duplex mode full duplex or half duplex Note The 10 100 1000 ports operate only in full duplex mode SPEED Port speed The port operating speed 10 100 or 1000 Mb s STACK Stack member status The stack member status Stack Wise port status The StackWise port status See the Stack LED section on page 1 20 for more information PoE 10 100 and 10 100 1000 The PoE status PoE port power Table 1 5 lists the PoE LED colors and their meanings Table 1 5 PoE Mode LED Color PoE Status Off PoE mode is not selected None of the 10 100 or 10 100 1000 ports have been
4. Warning Class 1 laser product Statement 1008 Warning This unit is intended for installation in restricted access areas A restricted access area can be accessed only through the use of a special tool lock and key or other means of security Statement 1017 A Warning The plug socket combination must be accessible at all times because it serves as the main disconnecting device Statement 1019 A Warning This equipment must be grounded Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available Statement 1024 A Warning This unit might have more than one power supply connection All connections must be removed to de energize the unit Statement 1028 A Warning Only trained and qualified personnel should be allowed to install replace or service this equipment Statement 1030 A Warning Ultimate disposal of this product should be handled according to all national laws and regulations Statement 1040 A Warning For connections outside the building where the equipment is installed the following ports must be connected through an approved network termination unit with integral circuit protection 10 100 1000 Ethernet Statement 1044 Catalyst 3750 Switch Hardware Installa
5. denied power or are in a fault condition Green PoE mode is selected and the PoE status is shown on the port LEDs Blinking amber PoE mode is not selected At least one of the 10 100 or 10 100 1000 ports has been denied power or at least one of the 10 100 or 10 100 1000 ports has a PoE fault Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter 1 Product Overview 10 100 and 10 100 1000 Ports W To select or change a mode press the Mode button until the desired mode is highlighted When you change port modes the meanings of the port LED colors also change Table 1 6 explains how to interpret the port LED colors in different port modes Table 1 6 Meaning of LED Colors in Different Modes on the Switch Port Mode Port LED Color Meaning PoE Off PoE is off If the powered device is receiving power from an AC power source the port LED is off even if the powered device is connected to the switch port Green PoE is on The port LED is green only when the switch port is providing power Alternating PoE is denied because providing power to the powered device will green and exceed the 370 W switch power capacity amber Blinking amber PoE is off due to a fault Caution PoE faults are caused when noncompliant cabling or powered devices are connected to a PoE port Only standard compliant cabling can be used to connect Cisco pre standard IP Phones and wireless access point
6. 1 Phillips truss head screws Catalyst 3750 Switch Hardware Installation Guide Chapter2 Switch Installation Installing the Switch W Figure 2 27 Attaching Brackets for 19 Inch Telco Racks 86564 1 Phillips flat head screws Attaching Brackets for 23 Inch Racks This section shows to attach brackets for 23 inch racks in Figure 2 28 and Figure 2 29 These illustrations show how to attach each type of bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Figure 2 28 Attaching Brackets for 23 Inch Racks Front Panel Forward 132968 1 Phillips flat head screws Figure 2 29 Attaching Brackets for 23 Inch Racks Rear Panel Forward 132969 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 m Chapter 2 Switch Installation W installing the Switch Attaching Brackets for 24 Inch Racks and 24 Inch Telco Racks This section shows to attach brackets for ESTI racks in Figure 2 30 Figure 2 31 and Figure 2 32 These illustrations show how to attach each type of bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Figure 2 30 Attaching Brackets for 24 Inch Racks Front Panel Forward 86561 1 Phillips flat head screws Figure 2 31 Attaching Brackets for 24 Inch Racks Rear Panel Forward DC INPUTS FOR A ertr heu
7. The secret password is encrypted and the enable password is in plain text Enter enable secret secret_password Enter an enable password and press Return Enter enable password enable_password Enter a virtual terminal Telnet password and press Return The password can be from to 25 alphanumeric characters is case sensitive allows spaces but ignores leading spaces Enter virtual terminal password terminal password Optional Configure Simple Network Management Protocol SNMP by responding to the prompts You can also configure SNMP later through the CLI the device manager or the Network Assistant application To configure SNMP later type no Configure SNMP Network Management no no Enter the interface name physical interface or VLAN name of the interface that connects to the management network and press Return For this release always use vlan as that interface Enter interface name used to connect to the management network from the above interface summary vlani Configure the interface by entering the switch IP address and subnet mask and pressing Return The IP address and subnet masks shown below are examples Configuring interface vlanl Configure IP on this interface yes yes IP address for this interface 10 4 120 106 Subnet mask for this interface 255 0 0 0 255 0 0 0 Enter Y to configure the switch as the cluster command switch Enter N to configure it as a member switch or as a standalone
8. supported speeds 1 20 bale clasp latch removal 2 35 cables B 5 caution 2 33 2 34 connecting to 2 41 to 2 43 connectors B 3 described 1 13 installation 2 33 to 2 34 shelf mounting 2 30 shielding Ethernet cables warning 2 2 C 1 Simple Network Management Protocol See SNMP SNMP network management platforms 1 28 software switch management 1 27 specifications A 1 to A 13 speed troubleshooting 3 5 stacking cabling considerations 2 8 connecting to a StackWise port 2 8 examples 2 8 planning considerations 2 8 powering considerations 2 8 OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E W index stacking equipment warning 2 2 StackWise cable caution 2 31 StackWise ports 1 25 straight through cable pinout four twisted pair 10 100 ports B 7 four twisted pair l OOOBASE T ports B 9 two twisted pair 10 100 ports B 6 SunNet Manager 1 28 support for Cisco Access Points 1 10 switch powering on 2 7 system LED 1 17 T table mounting 2 30 technical specifications A 1 to A 13 telco racks 2 12 Telnet and accessing the CLI 1 27 temperature operating A 1 to A 13 terminal block wires caution C 8 terminal emulation software D 6 torquing the terminal block caution C 7 troubleshooting 3 1 to 3 6 bad or damaged cable 3 2 connection problems 3 2 diagnosing problems 3 1 Ethernet and fiber optic cables 3 2 link status 3 3 ping end device 3 4 PoE connections 3 3 port and interface settings 3 4 POST 3 1 spanning
9. 1 3 specifications A 2 warnings C 6 DC power caution C 4 E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Device Manager description 1 27 related documentation ix to configure switch 2 45 diagnosing problems 3 1 dimensions A 2 to A 13 document conventions viii duplex troubleshooting 3 5 duplex LED 1 18 electrical noise avoiding 2 5 electromagnetic safety 2 4 Ethernet and fiber optic cable troubleshooting 3 2 Express Setup using to access CLI D 2 using to clear switch IP address 3 6 F features 1 1 to 1 3 front panel 10 100 ports 1 10 clearance 2 5 description 1 4 to 1 10 LEDs 1 13 to 1 20 SFP module ports 1 13 XENPAK module ports 1 2 1 13 B 4 G ground connection warning 2 3 C 2 grounding procedure caution C 2 grounding procedure for DC power C 2 to C 3 Index W HP OpenView 1 28 humidity relative A 2 to A 13 installation assigning the IP Address D 7 connecting to a power source D 6 rack mounting 2 12 to 2 30 site requirements 2 5 stacking the switches See also stacking starting the terminal emulation software D 6 table or shelf mounting 2 30 wall mounting 2 27 See also procedures installing SFP modules 2 33 to 2 34 installing XENPAK modules 2 36 to 2 37 J jewelry removal warning 2 2 L LEDs color meanings 1 19 duplex 1 18 front panel 1 14 to 1 15 interpreting 1 19 master 1 18 PoE 1 18 port 1 18 to 1 20 port mode 1 18 to 1 20 POST re
10. 1000 PoE port Auto the default and Never e When you select Auto the port only provides power if a valid powered device such as an IEEE 802 3af compliant powered device a Cisco pre standard IP phone or a Cisco pre standard Cisco access point is connected to it e When you select Never the port does not provide power even if a Cisco IP phone or an access point is connected to it For information about configuring and monitoring PoE ports see the device manager online help and the switch software configuration guide Cisco enhanced power negotiation allows some powered devices such as the Cisco 7970G IP Phone to operate in high power mode on Catalyst 3750 PoE switches The powered device and the switch negotiate through power negotiation Cisco Discovery Protocol CDP messages for an agreed upon power consumption level The negotiation allows a high power Cisco powered device that consumes more than 7 W to operate at its highest power mode The powered device first boots up in low power mode consumes less than 7 W and negotiates to obtain enough power to operate in high power mode The device changes to high power mode only when it receives confirmation from the switch High power devices can operate in low power mode on switches that do not support power negotiation CDP For information about configuring and monitoring PoE ports see the device manager online help and the switch software configuration guide Note You also can con
11. 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 1 5 to 3 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 8 5A Power consumption 70 W 240 BTUs per hour Power rating 0 070 kVA Physical Dimensions Weight 9 lb 4 1 kg Dimensions H x W x D 1 73 x 17 5 x 11 8 in 4 4 x 44 5 x 30 1 cm I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 4 Environmental Ranges Specifications for the Catalyst 3750 24TS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 0 6 to 1 2 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 8 5A Power consumption 50 W 171 BTUs per hour Power rating 0 083 kVA Physical Dimensions Weight 8 Ib 3 6 kg Dimensions H x W x D 1 73 x 17 5 x 11 8 in 4 4 x 44 5 x 30 1 cm Catalyst 3
12. 20 e Catalyst 3750G 24TS Switch Rear Panel Figure 1 21 e Catalyst 3750G 12S SD Switch Rear Panel Figure 1 22 e Catalyst 3750 24FS Switch Rear Panel Figure 1 23 e Catalyst 3750 24PS and Catalyst 3750 48PS Switches Rear Panel Figure 1 24 e Catalyst 3750G 24PS 3750G 24TS 1U 3750G 48PS and 3750G 48TS Switches Rear Panel Figure 1 25 e Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switches Rear Panel Figure 1 26 Figure 1 20 Catalyst 3750 24TS 3750G 24T 3750G 12S 3750G 16TD and 3750 48TS Switches Rear Panel 86548 1 StackWise ports 4 AC power connector 2 RJ 45 console port 5 RPS connector 3 Fan exhaust Catalyst 3750 Switch Hardware Installation Guide P22 i OL 6336 07 Chapter1 Product Overview Rear Panel Description W Figure 1 21 Catalyst 3750G 24TS Switch Rear Panel 86547 1 StackWise ports 4 AC power connector RJ 45 console port 5 RPS connector Fan exhaust Figure 1 22 Catalyst 3750G 12S SD Switch Rear Panel 1 StackWise ports 4 DC power connector 2 RJ 45 console port 5 Ground lug bracket 3 Fan exhaust Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 Chapter1 Product Overview E Rear Panel Description Figure 1 23 Catalyst 3750 24FS Switch Rear Panel 1 StackWise ports 4 RPS connector RJ 45 console port 5 AC power connector Fan exhaust Figure 1 24
13. 6 Master LED 3 Speed LED 7 RPS LED 4 Duplex LED 8 System LED 1 The RPS LED is not used on the Catalyst 3750G 12S SD switch Figure 1 17 Catalyst 3750 24PS 3750G 24PS 3750 48PS and 3750G 48PS Switch LEDs 104062 BOOOOD 1 Mode button 6 Status LED 2 PoE LED 7 Master LED 3 Stack LED 8 RPS LED 4 Speed LED 9 System LED 5 Duplex LED I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview HZ 10 100 and 10 100 1000 Ports Figure 1 18 Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switch LEDs to 141727 re v TRR l OOOOO 1 Mode button 6 Status LED 2 PoE LED 7 Master LED 3 Stack LED 8 RPS LED 4 Speed LED 9 System LED 5 Duplex LED Catalyst 3750 Switch Hardware Installation Guide i16 OL 6336 07 Chapter1 Product Overview System LED RPS LED 10 100 and 10 100 1000 Ports W The System LED shows whether the system is receiving power and is functioning properly Table 1 1 lists the LED colors and their meanings Table 1 1 System LED Color System Status Off System is not powered on Green System is operating normally Amber System is receiving power but is not functioning properly Alternating green and amber Wireless controller is not functioning properly 1 Applies only to th
14. A and 48 V 7 8 A Power consumption 560 W Power dissipation 220 W 690 BTUs per hour Power rating 0 56 KVA Power over Ethernet Range from 4 to 15 4 W per port up to 370 W switch maximum Physical Dimensions Weight 15 5 lb 7 kg Dimensions H x W x D 1 73 x 17 5 x 16 1 in 4 4 x 44 5 x 40 9 cm OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 10 Environmental Ranges Specifications for the Catalyst 3750G 16TD Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 0 9 to 1 6 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 17 A Power consumption 180 W 615 BTUs per hour Power rating 0 180 KVA Physical Dimensions Weight 12 5 lb 5 7 kg Dimensions H x W x D 1 73 x 17 5 x 16 1 in 4 4 x 44 5 x 40 9 cm E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 11 Environmental Ranges Specifications for the Catalyst 3750G 24TS Switch Operating temperature 32 to 113 F 0 to 45
15. CWDM 1470 1490 SMF G 6527 62 miles 100 km 1510 1530 1550 1570 1590 1610 1 Modal bandwidth applies only to multimode fiber 2 A mode field diameter cladding diameter 9 micrometers 125 micrometers 3 A mode conditioning patch cord is required Using an ordinary patch cord with MMF 1000BASE LX LH SFP modules and a short link distance can cause transceiver saturation resulting in an elevated bit error rate BER When using the LX LH SFP module with 62 5 micron diameter MMF you must also install a mode conditioning patch cord between the SFP module and the MMF cable on both the sending and receiving ends of the link The mode conditioning patch cord is required for link distances greater than 984 feet 300 m 4 1000BASE ZX SFP modules can send data up to 62 miles 100 km by using dispersion shifted SMF or low attenuation SMF the distance depends on the fiber quality the number of splices and the connectors Two Twisted Pair Cable Pinouts Figure B 7 and Figure B 8 show the schematics of two twisted pair cables for 10 100 ports Figure B 7 Two Twisted Pair Straight Through Cable Schematic Switch Router or PC 3 TD W 3 RD 6TD W gt 6 RD 1RD lt 1 TD 2 RD lt 2TD H5578 Catalyst 3750 Switch Hardware Installation Guide lt OL 6336 07 Appendix B Connector and Cable Specifications Figure B 8 Switch Switch 3 TD 3 TD 6 TD 6 TD 1
16. Cabling must be away from sources of electrical noise such as radios power lines and fluorescent lighting fixtures Make sure the cabling is safely away from other devices that might damage the cables e Airflow around the switch and through the vents must be unrestricted e Temperature around the unit should not exceed 113 F 45 C amp Note If you install the switch in a closed or multirack assembly the temperature around it might be greater than normal room temperature OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter 2 Switch Installation Preparing for Installation Verifying Package Contents Note Carefully remove the contents from the shipping container and check each item for damage If any item is missing or damaged contact your Cisco representative or reseller for support Return all packing material to the shipping container and save it The switch is shipped with these items The Catalyst 3750 Switch Getting Started Guide Catalyst 3750 24TS 3750G 24TS 1U 3750G 24T 3750G 24TS 3750 48TS 3750G 48TS 3750 24PS 3750G 24PS 3750 48PS 3750G 48PS and 3750G 16TD switches The Catalyst 3750G Integrated Wireless LAN Controller Switch Getting Started Guide 3750G 24WS S25 and 3750G 24WS S50 switches The Regulatory Compliance and Safety Information for the Catalyst 3750 Switch amp AC power cord AC powered switches DC terminal block plug DC powered switc
17. Catalyst 3750G 12S and Catalyst C3750G 12S SD switches are numbered 1 through 12 The slots are grouped in three sets of four as shown in Figure 1 6 Figure 1 6 Catalyst 3750G 12S and Catalyst 3750G 12S SD Front Panel 97166 1 SFP module slots Catalyst 3750 24T 3750G 24TS and 3750G 24TS 1U Switches Front Panel Descriptions The 10 100 1000 ports on the Catalyst 3750G 24T 3750G 24TS and 3750G 24TS 1U switches are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 7 Figure 1 8 and Figure 1 9 Port 3 is above port 4 and so on The SFP module slots are numbered 25 to 28 on the Catalyst 3750G 24TS Front Panel Figure 1 8 and on the Catalyst 3750G 24TS 1U Front Panel Figure 1 9 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter1 Product Overview Front Panel Description W Figure 1 7 Catalyst 3750G 24T Front Panel 86543 1 10 100 1000 ports Figure 1 8 Catalyst 3750G 24TS Front Panel 86544 1 10 100 1000 ports 2 SFP module slots Figure 1 9 Catalyst 3750G 24TS 1U Front Panel 1 10 100 1000 ports 2 SFP module slots Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 a7 Chapter1 Product Overview E Front Panel Description Catalyst 3750G 48TS Switch Front Panel Description The 10 100 1000 ports on the Catalyst 3750G 48TS switch are numbered 1 through 48 and grouped in pa
18. Figure 1 1 Catalyst 3750 24FS Front Panel 1 10 100 ports 2 SFP module slots Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 EN Chapter1 Product Overview E Front Panel Description Catalyst 3750 24TS Switch Front Panel Description The 10 100 ports on the Catalyst 3750 24TS switch are numbered 1 through 24 The ports are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 2 Port 3 is above port 4 and so on The SFP module slots are numbered 1 left and 2 right Figure 1 2 Catalyst 3750 24TS Front Panel 86541 1 10 100 ports 2 SFP module slots Catalyst 3750 48TS Switch Front Panel Description The 10 100 ports on the Catalyst 3750 48TS switch are numbered 1 through 48 The ports are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 3 Port 3 is above port 4 and so on The SFP module slots are numbered 1 to 4 Figure 1 3 Catalyst 3750 48TS Front Panel 86542 1 10 100 ports 2 SFP module slots Catalyst 3750 Switch Hardware Installation Guide ia OL 6336 07 Chapter 1 Product Overview Front Panel Description W Catalyst 3750 24PS Switch Front Panel Description The 10 100 PoE ports on the Catalyst 3750 24PS switch are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 4 Port 3 is
19. Port The 10 Gigabit Ethernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the software documentation The console port uses an 8 pin RJ 45 connector which is described in Table B 4 and Table B 5 The supplied RJ 45 to DB 9 adapter cable is used to connect the console port of the switch to a console PC You need to provide a RJ 45 to DB 25 female DTE adapter if you want to connect the switch console port to a terminal You can order a kit part number ACS DSBUASYN containing that adapter from Cisco For console port and adapter pinout information see Table B 4 and Table B 5 Cable and Adapter Specifications These sections describe the cables and adapters used with Catalyst 3750 switches e SFP Module Cable Specifications page B 5 e Two Twisted Pair Cable Pinouts page B 6 e Four Twisted Pair Cable Pinouts for 10 100 Ports page B 7 e Identifying a Crossover Cable page B 8 e Four Twisted Pair Cable Pinouts for 1OOOBASE T Ports page B 9 e Crossover Cable and Adapter Pinouts page B 9 SFP Module Cable Specifications Table B 3 lists the cable specifications for the fiber optic SFP module connections Each port must match the wave length specifications on the other end of the cable and for reliable communications the cable must not exceed the required cable length Copper 1OOOBASE T SFP transceivers use standard four twisted pair Category 5 or greater cable at lengths up to 328 feet 100 meters
20. RD 1 RD 2 RD 2 RD H5579 Cable and Adapter Specifications W Two Twisted Pair Crossover Cable Schematic Four Twisted Pair Cable Pinouts for 10 100 Ports Figure B 9 and Figure B 10 show the schematics of four twisted pair cables for 10 100 1000 ports Figure B 9 Switch Router or PC 1 TPO lt _ gt 1 TP1 2 TPO lt _ gt 2 TP1 3 TP1 lt 3 TPO 6 TP1 lt gt 6 TPO 4 TP2 lt gt 4 TP3 5 TP2 lt gt 5 TP3 7 TP3 lt Y_ gt 7 TP2 8 TP3 lt gt 8 TP2 Figure B 10 Switch Switch 1 TPO 1 TPO 2 TPO 2 TPO 3 TP1 3 TP1 6 TP1 6 TP1 4 TP2 lt 4 TP2 5 TP2 lt gt 5 TP2 7 TP3 lt 7 TP3 8 TP3 lt gt 8 TP3 65274 65272 Four Twisted Pair Straight Through Cable Schematic for 10 100 1000 Ports Four Twisted Pair Crossover Cable Schematic for 10 100 1000 Ports I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix B Connector and Cable Specifications W Cable and Adapter Specifications Identifying a Crossover Cable To identify a crossover cable compare the two modular ends of the cable Hold the cable ends side by side with the tab at the back The wire connected to the pin on the outside of the left plug should be a different color from the wire connected to the pin on the inside of the right
21. SFP module ports Off Port is operating at 10 Mb s Green Port is operating at 100 Mb s Flashing green Port is operating at 1000 Mb s Note When installed in Catalyst 3750 switches LOOOBASE T SFP modules can operate at 10 100 or 1000 Mb s in full duplex mode or at 10 or 100 Mb s in half duplex mode XENPAK port Off Port is not operating Flashing green Port is operating at up to 10 Gb s STACK Off No stack member corresponding to that member number stack member Flashing green Stack member number Green Member numbers of other stack member switches 1 The PoE LED is only on the Catalyst 3750 24PS 3750G 24PS 3750 48PS 3750G 48PS 3750G 24WS S25 and 3750G 24WS SS50 switches If your switches are stacked and you press the Mode button on any one of the switches in the stack all the switches in the stack change to display the same selected mode For example if you press the mode button on the stack master to display SPEED all the other switches in the stack also display SPEED The PoE LED is on the Catalyst 3750 24PS 3750G 24PS 3750 48PS 3750G 48PS 3750G 24WS S25 and 3750G 24WS S50 switches Even if PoE mode is not selected on the switches this LED still shows PoE problems if they are detected The Catalyst 3750G S SD does not have a PoE LED The stack LED shows the sequence of member switches in a stack Up to nine switches can be members of a stack The first nine port LED
22. Switch Hardware Installation Guide OL 6336 07 ms 225 Chapter 2 Switch Installation W installing the Switch Attaching the Cable Guide We recommend attaching the cable guide to prevent the cables from obscuring the front panel of the switch and the other devices installed in the rack Use the supplied black screw as shown in Figure 2 38 Figure 2 39 and Figure 2 40 to attach the cable guide to the left or right bracket Figure 2 38 Attaching the Cable Guide on the 24 Port Catalyst 3750 Switches i 1 Cable guide screws Note The 48 port Catalyst 3750 switches ship with the cable guide shown in Figure 2 39 This cable guide secures up to 48 cables Use the supplied black screw to mount it on the left bracket Figure 2 39 Attaching the Cable Guide on the 48 Port Catalyst 3750 Switches 1 Cable guide screws Catalyst 3750 Switch Hardware Installation Guide 226 i OL 6336 07 Chapter2 Switch Installation Installing the Switch W Figure 2 40 Attaching the Cable Guide on the Catalyst 3750 Integrated Wireless LAN Controller Switches 1 Cable guide screws Wall Mounting amp To install the switch on a wall follow the instructions in these procedures e Attaching the Brackets to the Switch for Wall Mounting page 2 28 e Attaching the RPS Connector Cover page 2 28 e Mounting the Switch on a Wall page 2 29 Note wy The illustrations in this section show the Ca
23. Switch LEDs section on page 3 2 e Verify Switch Connections section on page 3 2 e Monitor Switch Performance section on page 3 5 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter3 Troubleshooting HZ Diagnosing Problems Verify Switch POST Results As the switch powers on it begins the POST a series of tests that runs automatically to ensure that the switch functions properly It might take several minutes for the switch to complete POST When the switch begins POST the system LED slowly blinks green When POST completes the system LED blinks amber If POST fails the system LED remains amber If POST completes successfully the system LED rapidly blinks green Note POST failures are usually fatal Contact your Cisco technical support representative if your switch does not pass POST Monitor Switch LEDs You must have physical access to the switch to do this Look at the port LEDs for troubleshooting information about the switch See the LEDs section on page 1 7 for a description of the LED colors and their meanings Verify Switch Connections Review this section when troubleshooting switch connectivity problems Bad or Damaged Cable Always look at the cable for marginal damage or failure A cable might connect at the physical layer but then cause packet corruption because of subtle damage to its wiring or connectors You can identify this situation because the port
24. TPO TPO TP1 TP2 TP2 TP1 TP3 TP3 N O a A WO DY 60915 XENPAK Module Ports Catalyst 3750G 16TD Switch The Catalyst 3750G 16TD switch uses XENPAK modules for 10 Gigabit fiber optic connections to networks See the Catalyst 3750 release notes for a list of supported XENPAK modules Fiber optic XENPAK modules use SC connectors as shown in Figure B 6 Figure B 6 Fiber Optic XENPAK Module SC Connector 2 TX Rx A Warning Invisible laser radiation may be emitted from disconnected fibers or connectors Do not stare into beams or view directly with optical instruments Table B 2 lists the XENPAK modules that the Catalyst 3750G 16TD switch supports Table B 2 Catalyst 3750G 16TD Switch Supported XENPAK Modules XENPAK Wavelength Connector and Cable Type Maximum Distance C3 XENPAK 10GB LR_ 1310 nm SC SMF 6 2 miles 10 km XENPAK 10GB ER 1550 nm SC SMF 24 85 miles 40 km C3 XENPAK 10GB SR_ 1850 nm SC FDDI grade MMF 85 3 feet 26 m SC OM3 MMF 984 25 feet 300 m 1 FDDI fiber distributed data interface E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Appendix B Connector and Cable Specifications Cable and Adapter Specifications For more information about XENPAK modules see your XENPAK module documentation Note Console
25. above port 4 and so on The SFP module slots are numbered 1 and 2 Figure 1 4 Catalyst 3750 24PS Switch Front Panel 1 10 100 PoE ports 2 SFP module slots Catalyst 3750 48PS Switch Front Panel Description The 10 100 PoE ports on the Catalyst 3750 48PS switch are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 5 Port 3 is above port 4 and so on The SFP module slots are numbered to 4 Figure 1 5 Catalyst 3750 48PS Switch Front Panel 1 10 100 PoE ports 2 SFP module slots I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview E Front Panel Description Gigabit Ethernet Switch Front Panel Descriptions These sections describe the front panels for the Gigabit Ethernet switches e Catalyst 3750G 12S and Catalyst 3750G 12S SD Switches Front Panel Description page 1 6 e Catalyst 3750 24T 3750G 24TS and 3750G 24TS 1U Switches Front Panel Descriptions page 1 6 e Catalyst 3750G 48TS Switch Front Panel Description page 1 8 e Catalyst 3750G 24PS Switch Front Panel Description page 1 8 e Catalyst 3750G 48PS Switch Front Panel Description page 1 9 e Catalyst 3750G 16TD Switch Front Panel Description page 1 9 e Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel Description page 1 10 Catalyst 3750G 12S and Catalyst 3750G 12S SD Switches Front Panel Description The SFP module slots on the
26. block plug see Figure C 4 Figure C 4 Terminal Block Plug 60530 E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixC Connecting to DC Power Step 3 Step 4 Connecting to DC Power W Identify the positive and negative feed positions for the terminal block connection The wiring sequence is positive to positive and negative to negative for both the A and the B feed wires The switch rear panel identifies the positive and negative positions for both the A and B feed wires as shown in Figure C 5 Figure C 5 Positive and Negative Positions on the Switch Rear Panel Using a 18 gauge wire stripping tool strip each of the four wires coming from the DC input power source to 0 27 inch 6 6 mm 0 02 inch 0 5 mm as shown in Figure C 6 Do not strip more than 0 29 inch 7 4 mm of insulation from the wire Stripping more than the recommended amount of wire can leave exposed wire from the terminal block plug after installation Figure C 6 Stripping the DC Input Power Source Wire 0 25 inch 6 3 mm 0 02 inch 0 5 mm 7 nO 86460 OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide j AppendixC Connecting to DC Power HI Connecting to DC Power Step5 Insert the exposed wire of one of the four DC input power source wires into the terminal block plug as shown in Figure C 7 Make sure that you cannot see any wire lead Only wire with insulation should extend from the t
27. each warning to locate its translation in the translated safety warnings that accompanied this device Statement 1071 SAVE THESE INSTRUCTIONS The safety warnings for this product are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 3750 Switch that ships with the product The EMC regulatory statements are also included in that guide Catalyst 3750 Switch Hardware Installation Guide xin OL 6336 07 Preface Related Publications W Related Publications You can order printed copies of documents with a DOC xxxxxx number from the Cisco com sites and from the telephone numbers listed in the URL referenced in the Obtaining Documentation Obtaining Support and Security Guidelines section on page x These documents provide complete information about the switch and are available from this Cisco com site http www cisco com en US products hw switches ps5023 tsd_products_support_series_home html D Catalyst 3750 Switch Getting Started Guide order number DOC 7816663 Catalyst 3750G Integrated Wireless LAN Controller Getting Started Guide order number DOC 7817540 Regulatory Compliance and Safety Information for the Catalyst 3750 Switch order number DOC 7816664 Release Notes for the Catalyst 3750 Switch not orderable but available on Cisco com Release Notes for the Catalyst 3750G Integrated Wireless LAN Controller Switch not orderable but available on C
28. is necessary to call technical support for help Appendix A Technical Specifications lists the physical and environmental specifications for the switches and the regulatory agency approvals Appendix B Connector and Cable Specifications describes the connectors cables and adapters that you use to connect the switch I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide jg Preface HZ Conventions Appendix C Connecting to DC Power describes how to make DC power connections to the Catalyst 3750G 12S SD switch Appendix D Configuring the Switch with the CLI Based Setup Program provides a command line interface CLI based setup procedure for a standalone switch or a switch stack Conventions This document uses these conventions and symbols for notes cautions and warnings amp Note Means reader take note Notes contain helpful suggestions or references to materials not contained in this manual A Caution Means reader be careful In this situation you might do something that could result in equipment damage or loss of data A Warning IMPORTANT SAFETY INSTRUCTIONS This warning symbol means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents Use the statement number provided at the end of
29. markings might be replaced by arrows that show the direction of the connection either send or receive TX or RX OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter 2 Switch Installation W installing and Removing SFP Modules Step3 Align the SFP module in front of the slot opening Step4 Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear of the slot Figure 2 48 Installing an SFP Module into an SFP Module Slot 97169 Step5 For fiber optic SFP modules remove the dust plugs from the optical ports and store them for later use A Caution Do not remove the dust plugs from the fiber optic SFP module port or the rubber caps from the fiber optic cable until you are ready to connect the cable The plugs and caps protect the SFP module ports and cables from contamination and ambient light Step6 Insert the cable connector into the SFP module e For fiber optic SFP modules insert the LC or MT RJ cable connector into the SFP module e For copper SFP modules insert the RJ 45 cable connector into the SFP module amp Note When you connect to 1000BASE T SFP modules be sure to use a twisted four pair Category 5 or later cable Removing SFP Modules from SFP Module Slots To remove an SFP module from a module slot follow these steps Step1 Attach an ESD preventive wrist strap to your wrist and to a bare metal surface on
30. other cable end into a fiber optic receptacle on a target device Step4 Observe the port status LED e The LED turns green when the switch and the target device have an established link e The LED turns amber while the STP discovers the network topology and searches for loops This process takes about 30 seconds and then the port LED turns green e Ifthe LED is off the target device might not be turned on there might be a cable problem or there might be problem with the adapter installed in the target device See Chapter 3 Troubleshooting for solutions to cabling problems Figure 2 56 Connecting to an SFP Module Port 1 ILC connector Step5 If necessary reconfigure and restart the switch or target device A Caution For detailed instructions on removing the SFP modules see your SFP documentation Catalyst 3750 Switch Hardware Installation Guide 242 i OL 6336 07 Chapter2 Switch Installation Connecting to an SFP Module W Connecting to 1000BASE T SFP Modules A Follow these steps to connect a Category 5 cable to a 1OOOBASE T SFP module port see Figure 2 57 Caution Step 1 amp To prevent ESD damage follow your normal board and component handling procedures When you connect the switch to servers workstations and routers insert a four twisted pair straight through cable in the RJ 45 connector When you connect the switch to other switches or repeaters insert a four twi
31. powered devices including older Cisco IP phones and access points that do not fully support IEEE 802 3af might not support PoE when connected to the switch by a crossover cable Replace the crossover cable with a straight through cable A Caution PoE faults are caused when noncompliant cabling or powered devices are connected to a PoE port Only standard compliant cabling can be used to connect Cisco pre standard IP phones and wireless access points or IEEE 802 3af compliant devices to PoE ports You must remove a cable or device that causes a PoE fault from the network Transceiver Module Port Issues Use only Cisco SFP modules on the switch Each Cisco module has an internal serial EEPROM that is encoded with security information This encoding provides a way for Cisco to identify and validate that the module meets the requirements for the switch Check these items e Bad or incorrect SFP module Exchange the suspect module with a known good module Verify that this module supports this platform See the SFP Modules section on page 1 6 for a list of supported SFP modules Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 PEN Chapter3 Troubleshooting HZ Diagnosing Problems e Bad or incorrect XENPAK module Replace the suspect module with a known good module Verify that the platform supports the module See the Table B 2 on page B 4 for a list of supported XENPAK modules e Use the show interfaces
32. privileged EXEC command to check the port or module error disabled disabled or shutdown status Re enable the port if necessary e Make sure that all you have properly cleaned and securely connected all fiber optic connections Port and Interface Settings An obvious but sometimes overlooked cause of port connectivity failure is a disabled port Verify that the port or interface is not disabled or for some reason powered off If a port or interface is manually shut down on one or the other side of the link the link does not come up until you re enable the port Use the show interfaces privileged EXEC command to verify the port or interface error disabled disabled or shutdown status on both sides of the connection If necessary re enable the port or the interface Ping the End Device Verify the end device connection by first pinging it from the directly connected switch and then work your way back port by port interface by interface trunk by trunk until you find the source of the connectivity issue Make sure that each switch can identify the end device MAC address in its Content Addressable Memory CAM table Spanning Tree Loops Spanning Tree Protocol STP loops can cause serious performance issues that might appear to be port or interface problems In this situation the switch bandwidth is used repeatedly by the same frames crowding out legitimate traffic A unidirectional link can cause loops This occurs when the traffic tha
33. switch If you enter N the switch appears as a candidate switch in the Network Assistant GUI You can configure the switch as a command switch later through the CLI the device manager or the Network Assistant application To configure it later enter no Would you like to enable as a cluster command switch yes no no Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 _ Appendix D Configuring the Switch with the CLI Based Setup Program Step 10 Entering the Initial Configuration Information W You have now completed the initial configuration of the switch and the switch displays its initial configuration This is an example of output that appears The following configuration command script was created hostname switchl enable secret 5 1S5U1q8 D1A 0iaEb190WcBPd9cOn1 enable password enable_password line vty 0 15 password terminal password no snmp server l no ip routing interface Vlan1 no shutdown ip address 10 4 120 106 255 0 0 0 interface FastEthernet1 0 1 interface FastEthernet1 0 2 interface FastEthernet1 0 3 lt output abbreviated gt interface GigabitEthernet2 0 28 end These choices are displayed 0 Go to the IOS command prompt without saving this config 1 Return back to the setup without saving this config 2 Save this configuration to nvram and exit If you want to save the configuration and use it the next time the switch reboots save it i
34. the chassis Step2 Disconnect the cable from the SFP module P Tip For reattachment note which cable connector plug is send TX and which is receive RX Catalyst 3750 Switch Hardware Installation Guide 2 34 ff OL 6336 07 Chapter2 Switch Installation Step 3 Step 4 Step 5 Step 6 Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch Unlock and remove the SFP module as shown in Figure 2 49 If the module has a bale clasp latch pull the bale out and down to eject the module If the bale clasp latch is obstructed and you cannot use your index finger to open it use a small flat blade screwdriver or other long narrow instrument to open the bale clasp latch Figure 2 49 Removing a Bale Clasp Latch SFP Module by Using a Flat Blade Screwdriver 86554 1 Bale clasp Grasp the SFP module between your thumb and index finger and carefully remove it from the module slot For fiber optic SFP modules insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean Place the removed SFP module in an antistatic bag or other protective environment Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch amp These sections describe how to install and remove XENPAK modules e Removing SFP Modules from SFP Module Slots page 2 34 e Removing a XENPAK Module page 2 38 XENPAK modules are inserted into the XENPAK module slot on the fr
35. the setup user EXEC command See these sections in this chapter to then configure the switch by using the CLI e Entering the Initial Configuration Information page D 7 e Completing the Setup Program page D 7 After you have entered the configuration information for the switch save it to flash memory by using the write memory privileged EXEC command Note While in Express Setup mode the IP address 10 0 0 1 remains active on the switch until you enter the write memory command You lose the Telnet connection after entering the write memory command For more information about using the CLI see the command reference for this release Accessing the CLI Through the Console Port You can access the CLI on a configured or unconfigured switch by connecting the console port of the switch to the serial port on your PC or workstation and accessing the switch through a Telnet session To access the switch through the console port follow these steps e Taking Out What You Need section on page D 3 e Connecting to the Console Port section on page D 5 e Starting the Terminal Emulation Software section on page D 6 e Connecting to a Power Source section on page D 6 e Entering the Initial Configuration Information section on page D 7 Catalyst 3750 Switch Hardware Installation Guide D2 E OL 6336 07 _ Appendix D Configuring the Switch with the CLI Based Setup Program Taking Out What You Need W T
36. to 2 7 connector 1 25 specifications A 2 to A 13 adapter pinouts terminal RJ 45 to DB 25 B 10 RJ 45 to DB 9 B 9 altitude operating and storage A 2 to A 13 attaching the Cisco RPS warning 1 26 2 2 2 7 autonegotiation 1 10 autonegotiation troubleshooting 3 5 bodily injury protection warning 2 3 2 11 brackets See mounting brackets c cable guide attaching 2 26 cable lengths 2 5 cables crossover four twisted pair pinout 10 100 ports B 7 four twisted pair pinout 1000BASE T ports B 9 two twisted pair pinout 10 100 ports B 7 recommended 2 40 SFP module B 5 1000BASE T module 2 43 fiber optic module 2 41 straight through four twisted pair pinout 10 100 ports B 7 four twisted pair pinout 1000BASE T ports B 9 two twisted pair pinout 10 100 ports B 6 cables caution 1 25 cabling 10 100 1000 ports 2 39 10 100 ports 1 12 2 39 considerations 2 8 pinouts B 7 OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide jg W index cabling continued StackWise cables cable numbers 1 25 connecting to 2 30 cautions viii 5 A branch circuit protection C 4 DC input power source 1 26 DC power C 4 electromagnetic safety 2 4 grounding procedure C 2 installing and removing fiber optic SFP modules 2 33 installing and removing fiber optic XENPAK modules 2 36 lightning surge requirements C 8 nonexposed wiring connections C 8 PoE faults 1 19 2 40 removing and installing StackWise cable 2 31 re
37. 45 to DB 9 adapter cable D Note If you have stacked your switches connect to the console port of one of the switches in the stack The initial configuration for the entire stack can be performed on any switch in the stack Follow these steps to connect the PC or terminal to the switch Step 1 Using the supplied RJ 45 to DB 9 adapter cable insert the RJ 45 connector into the console port on the rear of a switch as shown in Figure D 4 Step2 Attach the DB 9 female DTE of the adapter cable to a PC serial port or attach an appropriate adapter to the terminal Figure D 4 Connecting a Switch to a PC 90531 1 Catalyst 3750 switches 3 RJ 45 to DB 9 adapter cable 2 Power cord Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 a Ds Appendix D Configuring the Switch with the CLI Based Setup Program W Starting the Terminal Emulation Software Starting the Terminal Emulation Software Step 1 Step 2 Step 3 Before you power on the switch start the terminal emulation session so that you can see the output display from the power on self test POST The terminal emulation software frequently a PC application such as Hyperterminal or ProcommPlus makes communication between the switch and your PC or terminal possible Start the terminal emulation program if you are using a PC or terminal Start a terminal emulation session Configure the baud rate and character format of the PC o
38. 5 x 37 8 cm E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 13 Environmental Ranges Specifications for the Catalyst 3750 48TS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 0 6 to 1 2 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 8 5A Power consumption 75 W 256 BTUs per hour Power rating 0 075 kVA Physical Dimensions Weight 9 1 Ib 4 1 kg Dimensions H x W x D 1 73 x 17 5 x 11 8 in 4 4 x 44 5 x 30 1 cm Table A 14 Environmental Ranges Specifications for the Catalyst 3750G 48TS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 1 5 to 3 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V IT5A Power consumption 160 W Power dissipation 160 W 500 BTUs per hou
39. 750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 5 Environmental Ranges Specifications for the Catalyst 3750G 24T Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 0 9 to 1 6 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 13 A Power consumption 165 W 563 BTUs per hour Power rating 0 165 kVA Physical Dimensions Weight 10 Ib 4 6 kg Dimensions H x W x D 1 73 x 17 5 x 12 8 in 4 4 x 44 5 x 32 6 cm I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 6 Specifications for the Catalyst 3750 24PS Switch Environmental Ranges Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 2 9 to 5 5 A 50 to 60 Hz DC input voltage for RPS 12 V 7 5 A
40. C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 1 5 to 2 3 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 17 A Power consumption 190 W 650 BTUs per hour Power rating 0 190 kVA Physical Dimensions Weight 12 5 lb 5 7 kg Dimensions H x W x D 2 59 x 17 5 x 11 6 in 6 6 x 44 5 x 29 5 cm I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide Appendix A Technical Specifications Table A 12 Environmental Ranges Specifications for the Catalyst 3750G 24TS 1U Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 1 5 to 3 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 10 5 A Power consumption 100 W Power dissipation 100 W 314 BTUs per hour Power rating 0 10 KVA Physical Dimensions Weight 12 1b 5 5 kg Dimensions H x W x D 1 73 x 17 5 x 14 9 in 4 4 x 44
41. CWDM fiber optic SFP module connections Each port must match the wave length specifications on the other end of the cable and for reliable communications the cable must not exceed the stipulated cable length e See the Catalyst 3750 release notes for cable requirements for XENPAK module connections Each port must match the wave length specifications on the other end of the cable and for reliable communications the cable must not exceed the required cable length Note When you use shorter distances of single mode fiber cable you might need to insert an inline optical attenuator in the link to avoid overloading the receiver When the fiber optic cable span is less than 25 km you should insert a 5 decibel dB or 10 dB inline optical attenuator between the fiber optic cable plant and the receiving port on the 1OOOBASE ZX SFP module at each end of the link e The operating environment must be within the ranges listed in Appendix A Technical Specifications e Clearance to front and rear panels must be such that You can easily read the front panel indicators Access to ports is sufficient for unrestricted cabling Make sure that there is access to the rear of the rack if you are planning to stack the switches If you do not have access to the rear panel make sure that you cable the switches before you rack mount them The AC power cord can reach from the AC power outlet to the connector on the switch rear panel e
42. Catalyst 3750 24PS and Catalyst 3750 48PS Switches Rear Panel 104763 1 StackWise ports 3 AC power connector 2 RJ 45 console port J4 RPS connector Figure 1 25 Catalyst 3750G 24PS 3750G 24TS 1U 3750G 48PS and 3750G 48TS Switches Rear Panel 1 StackWise ports 4 RPS connector RJ 45 console port 5 AC power connector Fan exhaust Catalyst 3750 Switch Hardware Installation Guide P24 OL 6336 07 Chapter1 Product Overview Rear Panel Description W Figure 1 26 Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switches Rear Panel 141728 Stack Wise ports RPS connector 5 RJ 45 switch console port 6 Service port 7 RJ 45 controller console port AC power connector A U N Fan exhaust StackWise Ports The Catalyst 3750 switch ships with a 0 5 meter StackWise cable 72 2632 XX CABASY that you can use to connect the StackWise ports A Caution Use only approved cables CAB STACK 50CM CAB STACK 1M or CAB STACK 3M and connect only to similar Cisco equipment Equipment might be damaged if connected to other nonapproved Cisco cables or equipment You can order these StackWise cables from your Cisco sales representative e CAB STACK 50CM 0 5 meter cable e CAB STACK 1M l meter cable e CAB STACK 3M 3 meter cable Power Connectors The switch is powered through the internal power supply Except on the Catalyst 3750G 12S SD switch
43. Catalyst 3750 switches Crossover Cable and Adapter Pinouts 65272 Four Twisted Pair Straight Through Cable Schematic for 10 100 1000 Ports Four Twisted Pair Crossover Cable Schematics for 10 100 1000 and 1000BASE T SFP Figure B 12 Switch Router or PC 1 TPO lt _ gt 1 TP1 2 TPO lt _ gt 2 TP1 3 TP1 lt gt 3 TPO 6 TPi lt 6 TPO 4 TP2 lt gt 4 TP3 5 TP2 lt gt 5 TP3 7 TP3 lt gt 7 TP2 8 TP3 lt 8 TP2 Figure B 13 Module Ports Switch Switch 1 TPO 1 TPO 2 TPO 2 TPO 3 TP1 3 TP1 6 TP1 6 TP1 4 TP2 lt gt 4 TP2 5 TP2 lt gt 5 TP2 7 TP3 lt 7 TP3 8 TP3 lt 8 TP3 65274 This section describes the adapter pinouts Table B 4 lists the pinouts for the console port the RJ 45 to DB 9 adapter cable and the console device Table B 4 Console Port Signaling Using a DB 9 Adapter Switch Console RJ 45 to DB 9 Console Port DTE Terminal Adapter Device Signal DB 9 Pin Signal RTS 8 CTS DTR 6 DSR I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix B Connector and Cable Specifications WE Cable and Adapter Specifications Table B 4 Console Port Signaling Using a DB 9 Adapter continued Switch Console RJ 45 to DB 9 Console _ Port DTE Termina
44. DTE adapter You can order a kit part number ACS DSBUAS YN containing that adapter from Cisco For console port and adapter pinout information see the Connector and Cable Specifications section on page B 1 Note On the Catalyst 3750G 24WS S25 and the 3750G 24WS S50 switches there are two console ports the switch console port and the controller console port The controller console port can be used to directly configure the controller if you lose connectivity between the switch and the controller Management Options The Catalyst 3750 switches offer several management options Network Assistant Cisco Network Assistant is a PC based network management GUI application optimized for LANs of small and medium sized businesses Cisco Network Assistant offers centralized management of Cisco switches that range from the Cisco Catalyst 2950 through the Cisco Catalyst 4506 Through a user friendly GUI users can configure and manage switch clusters or standalone switches Cisco Network Assistant is available at no cost and can be downloaded from this URL http www cisco com go networkassistant For information on starting the Network Assistant application see the Getting Started with Cisco Network Assistant guide on Cisco com Device manager You can use the device manager which is in the switch memory to manage individual and standalone switches This is an easy to use web interface that offers quick configuration and monitori
45. F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 0 6 to 1 2 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 13 A Power consumption 120 W 409 BTUs per hour Power rating 0 120 KVA Physical Dimensions Weight 10 1b 4 6 kg Dimensions H x W x D 1 73 x 17 5 x 12 8 in 4 4 x 44 5 x 32 6 cm Table A 2 Environmental Ranges Specifications for the Catalyst 3750G 12S SD Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements DC input voltage 36 to 72 VDC 3tol5A Power consumption 94 W 321 BTUs per hour Physical Dimensions Weight 10 1b 4 6 kg Dimensions H x W x D 1 73 x 17 5 x 12 8 in 4 4 x 44 5 x 32 6 cm Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 3 Environmental Ranges Specifications for the Catalyst 3750 24FS Switch Operating temperature 32 to
46. OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix D Configuring the Switch with the CLI Based Setup Program E Stacking the Switches Optional Stacking the Switches Optional You can stack up to nine switches by using the StackWise cables and ports to connect the switches see Figure D 2 Read the Planning the Stack section on page 2 7 before you stack your switches Figure D 2 Stacking the Switches 90529 Step1 Insert one end of the StackWise cable into the StackWise port at the back of a switch See Figure D 3 amp Note Always use a Cisco approved StackWise cable to connect the switches Step2 Use the window in the StackWise cable to align the connector correctly Secure the screws tightly Step3 Insert the other end of the cable into the connector of the other switch and secure the screws tightly See the Connecting StackWise Cable to Stack Wise Ports section on page 2 30 for detailed installation procedures on how to connect the switches in a stack Figure D 3 Connecting the StackWise Cable to a StackWise Port 90530 Catalyst 3750 Switch Hardware Installation Guide Da g OL 6336 07 Appendix D Configuring the Switch with the CLI Based Setup Program Connecting to the Console Port Mil Connecting to the Console Port You can use the console port to perform the initial configuration To connect the switch console port to a PC use the supplied RJ
47. OST completes successfully the System LED remains green The RPS LED remains green for some time and then returns to its operating status The other LEDs turn off and return to their operating status Note POST failures are usually fatal Call Cisco Systems if your switch does not pass POST After you have powered all the switches in the stack a switch is elected as the stack master The master LED is green on the stack master switch If you started the terminal emulation program before you powered on your switch the PC or terminal displays the bootloader sequence You need to press Enter to display the setup program prompt Entering the Initial Configuration Information IP Settings To set up the switch you need to complete the setup program which runs automatically after the switch is powered up You must assign an IP address and other configuration information necessary for the switch to communicate with the local routers and the Internet This information is also required if you plan to use the Network Assistant to configure and manage the switch You will need this information from your network administrator before you complete the setup program e Switch IP address e Subnet mask IP netmask e Default gateway router e Enable secret password e Enable password e Telnet password Completing the Setup Program Note Step 1 If your switches are stacked and there are multiple console connections to individua
48. Ports A The switch 10 100 and 10 100 1000 ports configure themselves to operate at the speed of attached devices If the attached ports do not support autonegotiation you can explicitly set the speed and duplex parameters Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage To maximize performance choose one of these methods for configuring the Ethernet ports e Let the ports autonegotiate both speed and duplex e Set the port speed and duplex parameters on both ends of the connection Warning Voltages that present a shock hazard may exist on Power over Ethernet PoE circuits if interconnections are made using uninsulated exposed metal contacts conductors or terminals Avoid using such interconnection methods unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard Arestricted access area can be accessed only through the use of a special tool lock and key or other means of security Statement 1072 You can configure the 10 100 and 10 100 1000 ports on the Catalyst 3750 24PS 3750G 24PS 3750 48PS 3750G 48PS 3750G 24WS S25 and the 3750G 24WS S50 switches to either automatically provide PoE when a Cisco IP Phone Cisco Aironet Access Point or end device compliant with IEEE 802 3af is connecte
49. Ranges Specifications for the Catalyst 3750 48PS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 4 to 8 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 7 5 A and 48 V 7 8 A Power consumption 540 W Power dissipation 170 W 580 BTUs per hour Power rating 0 54 kVA Power over Ethernet Range from 4 to 15 4 W per port up to 370 W switch maximum Physical Dimensions Weight 13 2 1b 6 kg Dimensions H x W x D 1 73 x 17 5 x 14 8 in 4 4 x 44 5 x 37 8 cm Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 9 Environmental Ranges Specifications for the Catalyst 3750G 48PS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 4 to 8 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 14
50. Replace the dust covers on the connectors to protect them from dust when you are not using them When you need to remove the StackWise cable from the connector make sure to fully unscrew the screws before removing the connector Make sure that you also remove the correct screws from the Stack Wise port Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 a 231 Chapter 2 Switch Installation HI Connecting StackWise Cable to StackWise Ports Figure 2 45 shows the correct removal procedure Figure 2 45 Correct Removal of the StackWise Cable from a StackWise Port 86826 Caution Do not remove the cable by using the procedure shown in Figure 2 46 Figure 2 46 Incorrect Removal of a StackWise Cable from a StackWise Port 86827 Catalyst 3750 Switch Hardware Installation Guide 2 32 OL 6336 07 Chapter 2 Switch Installation Installing and Removing SFP Modules W Installing and Removing SFP Modules These sections describe how to install and remove SFP modules SFP modules are inserted into SFP module slots on the front of the Catalyst 3750 switches These field replaceable modules provide uplink interfaces You can use any combination of SFP modules See the Catalyst 3750 release notes for the list of SFP modules that the Catalyst 3750 switch supports Each port must match the wave length specifications on the other end of the cable and the cable must not exceed the stipulated cable leng
51. TAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES CCVP the Cisco Logo and the Cisco Square Bridge logo are trademarks of Cisco Systems Inc Changing the Way We Work Live Play and Learn is a service mark of Cisco Systems Inc and Access Registrar Aironet BPX Catalyst CCDA CCDP CCIE CCIP CCNA CCNP CCSP Cisco the Cisco Certified Internetwork Expert logo Cisco IOS Cisco Press Cisco Systems Cisco Systems Capital the Cisco Systems logo Cisco Unity Enterprise Solver EtherChannel EtherFast EtherSwitch Fast Step Follow Me Browsing FormShare GigaDrive GigaStack HomeLink Internet Quotient IOS iPhone IP TV iQ Expertise the iQ logo iQ Net Readiness Scorecard iQuick Study LightStream Linksys MeetingPlace MGX Networking Academy Network Registrar Packet PIX ProConnect RateMUX ScriptShare SlideCast SMARTnet StackWise The Fastest Way to Increase Your Internet Quotient and TransPath are registered trademarks of Cisco Systems Inc and or its affiliates in the United States and certain other countries All other trademarks mentioned in this document or Website are the property of their respective owners The use of the word partner does not imply a partnership relationship between Cisco and any other company 0612R Any Internet Protocol IP add
52. Table B 3 Fiber Optic SFP Module Port Cabling Specifications Wavelength Core Size Cladding Modal Bandwidth SFP Module nanometers Fiber Type Size micron MHz km Cable Distance 100BASE BX 1310 TX SMF G 652 32 810 feet 10 km GLC FE 100BX D 1550 RX GLC FE 100BX U 100BASE FX 1310 MMF 50 125 500 6 562 feet 2 km GLC GE 100FX 62 5 125 500 6 562 feet 2 km 100BASE FX 1310 MMF 50 125 500 6 562 feet 2 km GLC FE 100FX 62 5 125 500 6 562 feet 2 km 100BASE LX 1310 SMF G 652 32 810 feet 10 km 100BASE LX10 OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix B Connector and Cable Specifications W Cable and Adapter Specifications Table B 3 Fiber Optic SFP Module Port Cabling Specifications continued Wavelength Core Size Cladding Modal Bandwidth SFP Module nanometers Fiber Type Size micron MHz km Cable Distance 1000BASE BX10 D 1490 TX SMF G 6527 32 810 feet 10 km GLC BX D 1310 RX 1000BASE BX10 U 1310 TX SMF G 652 32 810 feet 10 km GLC BX U 1490 RX 1000BASE SX 850 MMF 62 5 125 160 722 feet 220 m GLC SX MM 62 5 125 200 902 feet 275 m 50 125 400 1640 feet 500 m 50 125 500 1804 feet 550 m 1000BASE LX LH 1310 MMF 62 5 125 500 1804 feet 550 m GLC LH SM 50 125 400 1804 feet 550 m 50 125 500 1804 feet 550 m SMF G 652 32 810 feet 10 km 1000BASE ZX 1550 SMF G 652 43 4 to 62 miles GLC ZX SM 70 to 100 km
53. Technical Specifications This appendix lists the switch technical specifications in these tables Specifications for the Catalyst 3750G 12S Switch Table A 1 on page A 2 Specifications for the Catalyst 3750G 12S SD Switch Table A 2 on page A 2 Specifications for the Catalyst 3750 24FS Switch Table A 3 on page A 3 Specifications for the Catalyst 3750 24TS Switch Table A 4 on page A 4 Specifications for the Catalyst 3750G 24T Switch Table A 5 on page A 5 Specifications for the Catalyst 3750 24PS Switch Table A 6 on page A 6 Specifications for the Catalyst 3750G 24PS Switch Table A 7 on page A 7 Specifications for the Catalyst 3750 48PS Switch Table A 8 on page A 8 Specifications for the Catalyst 3750G 48PS Switch Table A 9 on page A 9 Specifications for the Catalyst 3750G 16TD Switch Table A 10 on page A 10 Specifications for the Catalyst 3750G 24TS Switch Table A 11 on page A 11 Specifications for the Catalyst 3750G 24TS 1U Switch Table A 12 on page A 12 Specifications for the Catalyst 3750 48TS Switch Table A 13 on page A 13 Specifications for the Catalyst 3750G 48TS Switch Table A 14 on page A 13 Specifications for the Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switch Table A 14 on page A 13 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 1 Environmental Ranges Specifications for the Catalyst 3750G 12S Switch Operating temperature 32 to 113
54. Z Finding the Switch Serial Number Figure 3 2 Catalyst 3750G 16TD Switch Serial Number Location Figure 3 3 Catalyst 3750 24PS Switch Serial Number Location Hise Figure 3 4 Catalyst 3750G 24PS and 3750G 24TS 1U Switches Serial Number Location 11053 TH es 1 00 Catalyst 3750 Switch Hardware Installation Guide EN OL 6336 07 Chapter3 Troubleshooting Finding the Switch Serial Number W Figure 3 5 Catalyst 3750G 24TS Switch Serial Number Location Figure 3 6 Catalyst 3750 24TS Switch Serial Number Location pasos Figure 3 7 Catalyst 3750 24PS Switch Serial Number Location 15a Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 PEN Chapter3 Troubleshooting HZ Finding the Switch Serial Number Figure 3 8 Catalyst 3750G 24WS Switch Serial Number Location 141893 781 00451 01 Figure 3 9 Catalyst 3750 48PS Switch Serial Number Location Hees Figure 3 10 Catalyst 3750G 48PS and 3750G 48TS Switches Serial Number Location Tihs Slee Catalyst 3750 Switch Hardware Installation Guide EuN OL 6336 07 Chapter3 Troubleshooting Finding the Switch Serial Number W Figure 3 11 Catalyst 3750 48TS Switch Serial Number Location Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 lt Chapter3 Troubleshooting HZ Finding the Switch Serial Number Catalyst 3750 Switch Hardware Installation Guide Ea OL 6336 07 APPENDIX A
55. able parts inside Do not open Statement 1073 Warning A Installation of the equipment must comply with local and national electrical codes Statement 1074 Caution To comply with the Telcordia GR 1089 Network Equipment Building Systems NEBS standard for electromagnetic compatibility and safety connect the ethernet cables only to intrabuilding or nonexposed wiring or cabling Note The grounding architecture of this product is DC isolated DC I Catalyst 3750G Integrated Wireless LAN Controller Switches A This warning applies only to the Catalyst 3750G 24WS S25 and 3750G 24WS S50 switches Warning There is the danger of explosion if the battery is replaced incorrectly Replace the battery only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions Statement 1015 Catalyst 3750 Switch Hardware Installation Guide 2a E OL 6336 07 Chapter 2 Switch Installation Preparing for Installation W Installation Guidelines When you decide where to place the switch be sure to observe these requirements e For copper Ethernet ports including 10 100 ports 10 100 1000 ports and 1OOOBASE T SFP module ports cable lengths from the switch to connected devices can be up to 328 feet 100 meters e See Table B 3 on page B 5 for a list of cable specifications for LOOOBASE SX 1O00BASE LX 1000BASE ZX and
56. aking Out What You Need Remove the items shown in Figure D 1 from the shipping container Figure D 1 The Catalyst 3750 Switch Adapter Cable AC Power Cord and the StackWise Cable Ifin Ah Las POLES wN o 90533 1 Catalyst 3750 switch 3 AC power cord A StackWise cable optional 2 RJ 45 to DB 9 adapter cable Note For a DC switch you will have a DC power supply terminal block You need to provide the Category 5 or later straight through cables to connect the switch ports to other Ethernet devices You can use the mdix auto interface configuration command in the CLI to enable the automatic medium dependent interface crossover auto MDIX feature When the auto MDIX feature is enabled the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly Therefore you can use either a crossover or a straight through cable for connections to a copper 10 100 10 100 1000 or 1000BASE T SFP module port on the switch regardless of the type of device on the other end of the connection The auto MDIX feature is enabled by default on switches running Cisco IOS Release 12 2 18 SE or later For releases between Cisco IOS Release 12 1 14 EA1 and 12 2 18 SE the auto MDIX feature is disabled by default For configuration information for this feature see the switch software configuration guide or the switch command reference
57. and 48 V 7 8A 2300 and 675 Power consumption 495 W Power dissipation 125 W 426 BTUs per hour Power rating 0 495 kVA Power over Ethernet 15 4 W per port maximum 370 W switch maximum Physical Dimensions Weight 11 3 lb 5 1 kg Dimensions H x W x D 1 73 x 17 5 x 11 8 in 4 4 x 44 5 x 30 1 cm Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixA Technical Specifications Table A 7 Environmental Ranges Specifications for the Catalyst 3750G 24PS Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 4 to 8 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 14 A and 48 V 7 8 A Power consumption 520 W Power dissipation 170 W 534 BTUs per hour Power rating 0 52 KVA Power over Ethernet Range from 4 to 15 4 W per port up to 370 W switch maximum Physical Dimensions Weight 13 5 lb 6 1 kg Dimensions H x W x D 1 73 x 17 5 x 14 9 in 4 4 x 44 5 x 37 8 cm OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 8 Environmental
58. apter2 Switch Installation Installing the Switch W Figure 2 37 Mounting the Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switches in a Rack 1 Phillips machine screws After you mount the switch in the rack you might need to perform these tasks to complete the installation to run the setup program and to access the switch e Optional Connect the switches in the stacks See the Connecting Stack Wise Cable to Stack Wise Ports section on page 2 30 e Power on the switch See the Verifying Switch Operation section on page 2 6 If the switches are stacked see the Planning Considerations section on page 2 8 for information on powering considerations e Connect to a 10 100 or 10 100 1000 port and run Express Setup See the Catalyst 3750 Switch Getting Started Guide for instructions e Connect to the front panel ports See the Connecting to the 10 100 and 10 100 1000 Ports section on page 2 39 and the Connecting to an SFP Module section on page 2 41 to complete the installation For configuration instructions about using the CLI setup program go to Appendix D Configuring the Switch with the CLI Based Setup Program To use the CLI enter commands at the Switch gt prompt through the console port by using a terminal program or through the network by using Telnet For configuration information see the switch software configuration guide or the switch command reference Catalyst 3750
59. ated Wireless LAN Controller Switches The wireless LAN controller switches can only be mounted on 19 inch racks This section describes how to attach 19 inch brackets on the Catalyst 3750G 24WS S25 and the 3750G 24WS S50 switches Figure 2 20 Figure 2 21 and Figure 2 22 show how to attach the bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side For 19 inch racks use part number 700 21419 XX Figure 2 20 Attaching Brackets for 19 Inch Racks Front Panel Forward 141730 1 Phillips flat head screws Figure 2 21 Attaching Brackets for 19 Inch Racks Rear Panel Forward 141731 Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 E Chapter2 Switch Installation W installing the Switch Figure 2 22 Attaching Brackets for 19 Inch Telco Racks 1 Phillips flat head screws Attaching Brackets to All Other Catalyst 3750 Switches This section describes how to attach brackets to these Catalyst 3750 switches e Catalyst 3750 24TS and Catalyst 3750G 24TS e Catalyst 3750G 24T e Catalyst 3750 24FS e Catalyst 3750G 12S and 3750G 12S SD e Catalyst 3750 24PS and Catalyst 3750G 24PS e Catalyst 3750 48PS and Catalyst 3750G 48PS e Catalyst 3750G 16TD e Catalyst 3750 48TS and Catalyst 3750G 48TS Catalyst 3750 Switch Hardware Installation Guide Chapter2 Switch Installation Installing the Switch W The bracket orientation and the bracke
60. ation Guidelines page 2 5 e Verifying Package Contents page 2 6 e Verifying Switch Operation page 2 6 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter 2 Switch Installation Preparing for Installation Warnings A These warnings are translated into several languages in the Regulatory Compliance and Safety Information for the Catalyst 3750 Switch document that ships with the switch Warning A To prevent the switch from overheating do not operate it in an area that exceeds the maximum recommended ambient temperature of 113 F 45 C To prevent airflow restriction allow at least 3 inches 7 6 cm of clearance around the ventilation openings Statement 17B Warning A Before working on equipment that is connected to power lines remove jewelry including rings necklaces and watches Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals Statement 43 Warning A Do not stack the chassis on any other equipment If the chassis falls it can cause severe bodily injury and equipment damage Statement 48 Warning An exposed wire lead from a DC input power source can conduct harmful levels of electricity Be sure that no exposed portion of the DC input power source wire extends from the terminal block plug Statement 122 Warning Ethernet cables must be shielded when used in a central
61. chapter in the switch software configuration guide Cabling Considerations The illustrations in this section display cabling configuration examples that show the stack bandwidth and possible stack partitioning Figure 2 1 shows an example of a stack of Catalyst 3750 switches that provides full bandwidth and redundant StackWise cable connections Catalyst 3750 Switch Hardware Installation Guide 28 E OL 6336 07 Chapter 2 Switch Installation Planning the Stack W Figure 2 1 Example of a Stack with Full Bandwidth Connections 86821 Figure 2 2 shows an example of a stack of Catalyst 3750 switches with incomplete Stack Wise cabling connections This stack provides only half bandwidth and does not have redundant connections Figure 2 2 Example of a Stack with Half Bandwidth Connections 86823 Figure 2 3 and Figure 2 4 show examples of stacks of Catalyst 3750 switches with failover conditions In Figure 2 3 the Stack Wise cable is bad in link B therefore this stack provides only half bandwidth and does not have redundant connections In Figure 2 4 link B is bad therefore this stack partitions into two stacks and switch 1 and switch 3 are stack masters Figure 2 3 Example of a Stack with a Failover Condition
62. cian if you are uncertain that suitable grounding is available Statement 1024 A Caution To make sure that the equipment is reliably connected to earth ground follow the grounding procedure instructions and use a UL listed lug suitable for number 6 AWG wire and two number 10 32 ground lug screws To ground the switch to earth ground follow these steps Make sure to follow any grounding requirements at your site Step 1 Locate and remove the ground lug and the two number 10 32 ground lug screws from the rear panel of the switch See Figure C 3 for location Use a standard Phillips screwdriver or a ratcheting torque screwdriver with a Phillips head Set the screws and the ground lug aside Step2 If your ground wire is insulated use a wire stripping tool to strip the 6 gauge ground wire to 0 5 inch 12 7 mm 0 02 inch 0 5 mm as shown in Figure C 1 Figure C 1 Stripping the Ground Wire 0 5 in 12 7 mm 0 02 in 0 5 mm T Wire lead 60528 Insulation Step3 Slide the open end of the ground lug over the exposed area of the 6 gauge wire Catalyst 3750 Switch Hardware Installation Guide c2 E OL 6336 07 AppendixC Connecting to DC Power Step 4 Step 5 Step 6 Connecting to DC Power W Using a Panduit crimping tool crimp the ground lug to the 6 gauge wire as shown in Figure C 2 Figure C 2 Crimping the Ground Lug 60529 Use the two number 10 32 screws to attach the ground lug and w
63. d Alternatively you can configure them to never provide PoE even if an IP phone or an access point is connected The default setting is Auto To prevent ESD damage follow your normal board and component handling procedures Use the guidelines in Table 2 1 to select the correct cable for connecting the switch 10 100 and 10 100 1000 ports to other devices See the Cable and Adapter Specifications section on page B 5 for cable pinout descriptions I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide Chapter 2 Switch Installation W Connecting to the 10 100 and 10 100 1000 Ports A Table 2 1 Recommended Ethernet Cables Device Crossover Cable Straight Through Cable Switch to switch Yes No Switch to hub Yes No Switch to computer No Yes or server Switch to router No Yes Switch to IP phone No Yes 1 100BASE TX and 1000BASE T traffic requires twisted four pair Category 5 or higher cable 1OBASE T traffic can use Category 3 or Category 4 cable You can use the mdix auto interface configuration command in the CLI to enable the automatic medium dependent interface crossover auto MDIX feature When the auto MDIX feature is enabled the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly Therefore you can use either a crossover or a straight through cable for connections to a copper 10 100 10 100 1000 or 1OOOBASE T SFP mod
64. d page D 3 Stacking the Switches Optional page D 4 Connecting to the Console Port page D 5 Starting the Terminal Emulation Software page D 6 Connecting to a Power Source page D 6 fF wo FP BS DN Entering the Initial Configuration Information page D 7 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Di Appendix D Configuring the Switch with the CLI Based Setup Program HI Accessing the CLI Accessing the CLI For an unconfigured switch you can access the CLI through Express Setup or through the console port Accessing the CLI Through Express Setup amp Note amp Express Setup is supported on switches running Cisco IOS Release 12 1 14 EA1 or later If you are installing a new switch see the Cisco IOS release label on the rear panel of the switch to determine the release For switches running releases earlier than Cisco IOS Release 12 1 14 EA1 go to the Taking Out What You Need section on page D 3 You can access the CLI on an unconfigured switch by placing the switch in Express Setup mode and then connecting an Ethernet port of the switch to the Ethernet port of your PC or workstation To put the switch into Express Setup mode follow the steps described in the Catalyst 3750 Switch Getting Started Guide for powering on the switch and using Express Setup After the switch is in Express Setup mode use Telnet to connect to the switch by using the IP address 10 0 0 1 and enter
65. d a workstation or server This can happen when you manually set the speed and duplex or because of autonegotiation issues between the two devices These circumstances can result in a mismatch e A manually set speed or duplex parameter is different from the manually set speed or duplex parameter on the connected port e A port is set to autonegotiate and the connected port is set to full duplex with no autonegotiation To maximize switch performance and to ensure a link follow one of these guidelines when you set or change the settings for duplex and speed e Let both ports autonegotiate both speed and duplex e Manually set the speed and duplex parameters for the ports on both ends of the connection e Ifaremote device does not autonegotiate configure the duplex settings on the two ports to match The speed parameter can adjust itself even if the connected port does not autonegotiate Autonegotiation and NIC Cards Problems sometimes occur between the switch and third party network interface cards NICs By default the switch ports and interfaces are set to autonegotiate It is common for devices such as laptop computers or other devices to also be set to autonegotiate yet sometimes autonegotation issues occur To troubleshoot autonegotiation problems try to manually set both sides of the connection If this does not solve the problem the firmware or software on your NIC card might be causing the problem Upgrade the NIC card dr
66. e Catalyst 3750G 24WS S25 and 3750G 24WS SSO0 switches For information on the System LED colors during power on self test POST see the Powering On the Switch and Running POST section on page 2 7 The RPS LED shows the RPS status Table 1 2 lists the LED colors and their meanings The RPS LED is not used on the Catalyst 3750G 12S SD switch Table 1 2 RPS LED Color RPS Status Off RPS is off or not properly connected Green RPS is connected and ready to provide back up power if required Flashing green RPS is connected but is unavailable because it is providing power to another device redundancy has been allocated to a neighboring device Amber The RPS is in standby mode or in a fault condition Press the Standby Active button on the RPS and the LED should turn green If it does not the RPS fan could have failed Contact Cisco Systems Flashing amber The internal power supply in a switch has failed and the RPS is providing power to the switch redundancy has been allocated to this device For more information about the Cisco RPS 2300 see the Cisco Redundant Power System 2300 Hardware Installation Guide For more information about the Cisco RPS 675 see the Cisco RPS 675 Redundant Power System Hardware Installation Guide These guides are available on Cisco com I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview HZ 10 100 and 10 100 1000 Ports
67. e Specifications B 1 Connector Specifications B 1 10 100 and 10 100 1000 Ports B 2 100BASE FX Ports B 2 SFP Module Ports B 3 XENPAK Module Ports Catalyst 3750G 16TD Switch Console Port B 5 Cable and Adapter Specifications B 5 SFP Module Cable Specifications B 5 Two Twisted Pair Cable Pinouts B 6 Four Twisted Pair Cable Pinouts for 10 100 Ports B 7 Identifying a Crossover Cable B 8 Four Twisted Pair Cable Pinouts for 1000BASE T Ports Crossover Cable and Adapter Pinouts B 9 Identifying a Crossover Cable B 9 Adapter Pinouts B 10 appenpix C Connecting to DC Power C 1 Connecting to DC Power 1 Preparing for Installation C 2 Grounding the Switch C 2 Wiring the DC Input Power Source C 4 appennix D Configuring the Switch with the CLI Based Setup Program Accessing the CLI D 2 Accessing the CLI Through Express Setup D 2 Accessing the CLI Through the Console Port D 2 Taking Out What You Need D 3 Stacking the Switches Optional D 4 Connecting to the Console Port D 5 Starting the Terminal Emulation Software D 6 Connecting to a Power Source D 6 Entering the Initial Configuration Information D 7 IP Settings D 7 Completing the Setup Program D 7 INDEX B 4 D 1 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Audience Purpose Preface This guide is for the networking or computer technician responsible for installing the Catalyst 3750 switches We assume that you are familiar with th
68. e by using one of the MT RJ fiber optic patch cables that are listed in Table B 1 on page B 3 SFP Module Slots Catalyst 3750 switches with SFP module slots support these SFP modules e 100BASE FX MMP e 1000BASE BX e 1000BASE LX e 1000BASE SX e 1000BASE ZX Catalyst 3750 Switch Hardware Installation Guide Piz i OL 6336 07 Chapter1 Product Overview 10 100 and 10 100 1000 Ports W e 1000BASE T e CWDM For a list of the SFP modules that the switches support see the Catalyst 3750 switch release notes SFP Modules The Catalyst 3750 switch uses Gigabit Ethernet SFP modules to establish connections to other devices These transceiver modules are field replaceable providing the uplink interfaces when inserted in an SFP module slot You can use the SFP modules for Gigabit uplink connections to other switches You use fiber optic cables with LC or MT RJ connectors to connect to a fiber optic SFP module You use a Category 5 or higher cable with RJ 45 connectors to connect to a copper SFP module For more information about these SFP modules see your SFP module documentation XENPAK Module Slot Catalyst 3750G 16TD Switch The Catalyst 3750G 16TD switch uses 10 Gigabit Ethernet XENPAK modules to establish connections to networks You install the modules in the module slot in the switch front panel See Table B 2 on page B 4 for a list of XENPAK modules that the Catalyst 3750G 16TD switch supports Note The 10 Gigabit Eth
69. e concepts and terminology of Ethernet and local area networking This guide documents the hardware features of the Catalyst 3750 family of switches It describes the physical and performance characteristics of each switch explains how to install a switch and provides troubleshooting information This guide does not describe system messages that you might receive or how to configure your switch For more information see the switch software configuration guide the switch command reference and the switch system message guide on the Cisco com Product Documentation home page For information about the standard Cisco IOS Release 12 1 or 12 2 commands see the Cisco IOS documentation set from the Cisco com home page by choosing Support gt Documentation gt Product and Support Documentation Cisco IOS Software Organization This guide is organized into these chapters Chapter 1 Product Overview is a physical and functional overview of the Catalyst 3750 family of switches It describes the switch ports the standards they support and the switch LEDs Chapter 2 Switch Installation contains the procedures on how to power on the switch stack the switches install the switch in a rack on a wall on a table or shelf and how to make port connections Chapter 3 Troubleshooting describes how to identify and resolve some of the problems that might occur when you install the switch and how to identify the serial number when it
70. e switch features e Fast Ethernet Configurations Catalyst 3750 24FS switch 24 100BASE FX ports and 2 small form factor pluggable SFP module slots Catalyst 3750 24TS switch 24 10 100 Ethernet ports and 2 SFP module slots Catalyst 3750 48TS switch 48 10 100 Ethernet ports and 4 SFP module slots Catalyst 3750 24PS switch 24 10 100 Power over Ethernet PoE ports and 2 SFP module slots Catalyst 3750 48PS switch 48 10 100 PoE ports and 4 SFP module slots e Gigabit Ethernet Configurations Catalyst 3750G 12S switch 12 SFP module slots Catalyst 3750G 12S SD switch 12 SFP module slots Catalyst 3750G 24T switch 24 10 100 1000 Ethernet ports Catalyst 3750G 24TS switch 1 5 rack units RU 24 10 100 1000 Ethernet ports and 4 SFP module slots I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview E Features Catalyst 3750G 24TS 1U switch 1 RU 24 10 100 1000 Ethernet ports and 4 SFP module slots Catalyst 3750G 48TS switch 48 10 100 1000 Ethernet ports and 4 SFP module slots Catalyst 3750G 24PS switch 24 10 100 1000 PoE ports and 4 SFP module slots Catalyst 3750G 48PS switch 48 10 100 1000 PoE ports and 4 SFP module slots Catalyst 3750G 24WS S25 switch 24 10 100 1000 PoE ports 2 SFP module slots and an integrated Cisco wireless LAN controller supporting up to 25 Cisco Lightweight Access Points Catalyst 3750G 24WS S50 switch 24 10 100 1000 P
71. econds and then the switch reboots The switch now behaves like an unconfigured switch You can configure the switch by using Express Setup as described in the switch getting started guide that is included with the switch You can also configure the switch by using the CLI setup procedure described in Appendix D Configuring the Switch with the CLI Based Setup Program Replacing a Failed Stack Member If you need to replace a failed stack member you can hot swap or replace the switch by following this procedure Step 1 Get a replacement switch that has the same model number as the failed switch Step2 Power off the failed switch Step3 Make sure the replacement switch is powered off and then connect the replacement switch to the stack amp Note If you had previously manually set the member numbers for any members in the stack you need to manually assign the replacement switch with the same member number as the failed switch To assign the member number manually see the switch software configuration guide Catalyst 3750 Switch Hardware Installation Guide EN OL 6336 07 _ Chapter 3 Troubleshooting Step 4 Step 5 Finding the Switch Serial Number W Make the same Ethernet and Gigabit Ethernet connections on the replacement switch as were on the failed switch Power on the replacement switch Note If you add a replacement switch that has a later Cisco IOS release to the running stack the
72. ed Cabling Configurations section on page 2 10 provides examples of recommended configurations e Access to the rear ports for unrestricted cabling Make sure that you have access to the rear of the rack if you plan to stack the switches If you do not have access to the rear panel make sure that you cable the switches before you rack mount them e For concepts and procedures to manage switch stacks see the switch software configuration guide Powering Considerations Consider the following guidelines before you power on the switches in a stack e The sequence in which you initially power on the switches might affect the switch that becomes the stack master e Ifyou want a particular switch to become the stack master power on that switch first This switch becomes the stack master and remains the stack master until a master re election is required After approximately 10 seconds power on the remaining switches in the stack e If you have no preference as to which switch becomes the stack master power on all the switches in the stack within a 10 second timeframe These switches participate in the stack master election Switches powered up after the 10 second timeframe do not participate in the election e Power off a switch before you add it to or remove it from an existing switch stack amp Note For conditions that can cause a stack master re election or to manually elect the stack master see the Managing Switch Stacks
73. eplace the cable Link Status Verify that both sides have link A single broken wire or one shutdown port can cause one side to show link but the other side does not have link A link LED does not guarantee that the cable is fully functional The cable might have encountered physical stress that causes it to function at a marginal level If the link light for the port does not come on e Connect the cable from the switch to a known good device e Make sure that both ends of the cable are connected to the correct ports e Verify that both devices have power e Verify that you are using the correct cable type See Appendix A Connector and Cable Specifications for more information e Look for loose connections Sometimes a cable appears to be seated but is not Disconnect and then reconnect the cable PoE Connections When a powered device is connected to PoE port but no power is received you should e Use the Mode button to show the PoE status for all ports See Table 1 5 on page 1 18 fora description of the LEDs and their meanings e Monitor the port status by using the show interfaces privileged EXEC command to check the port error disabled disabled or shutdown status Re enable the port if necessary e Verify that the power supply installed in the switch meets the power requirements of your connected devices See the Power Connectors section on page 1 25 for more information e Check the cable type Many legacy
74. er k s Hav ANUAL SO V Fa 86563 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter2 Switch Installation Installing the Switch W Figure 2 32 Attaching Brackets for 24 Inch Telco Racks 86840 1 Phillips flat head screws Attaching Brackets for ETSI Racks This section shows to attach brackets for ESTI racks in Figure 2 33 and Figure 2 34 These illustrations show how to attach each type of bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Figure 2 33 Attaching Brackets for ESTI Racks Front Panel Forward 132970 1 Phillips flat head screws Figure 2 34 Attaching Brackets for ETSI Racks Rear Panel Forward 132971 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 Chapter 2 Switch Installation W installing the Switch Mounting the Switch in a Rack After the brackets are attached to the switch use the four supplied number 12 Phillips machine screws to securely attach the brackets to the rack as shown in Figure 2 35 Figure 2 36 and Figure 2 37 Figure 2 35 Mounting the Catalyst 3750G 24TS Switch in a Rack 1 Phillips machine screws Figure 2 36 Mounting the Other Catalyst 3750 Switches in a Rack 1 Phillips machine screws Catalyst 3750 Switch Hardware Installation Guide n OL 6336 07 Ch
75. erminal block A Warning An exposed wire lead from a DC input power source can conduct harmful levels of electricity Be sure that no exposed portion of the DC input power source wire extends from the terminal block plug Statement 122 Figure C 7 Inserting Wires in the Terminal Block Plug Return Negative Return Negative Feed A Feed B 60532 Catalyst 3750 Switch Hardware Installation Guide mce E OL 6336 07 Appendix C Connecting to DC Power Connecting to DC Power W Step6 Use a ratcheting torque screwdriver to torque the terminal block captive screw above the installed wire lead to 4 5 Ibf in 72 ozf in as shown in Figure C 8 Caution Do not overtorque the terminal block captive screws The recommended maximum torque is 4 5 lbf in 72 ozf in Figure C 8 Torquing the Terminal Block Captive Screws x a to 4 5 Ibf in 72 ozf in Step7 Repeat Steps 4 and 5 for the remaining three DC input power source wires Figure C 9 shows the completed wiring of a terminal block plug Figure C 9 Completed Wiring of Terminal Block Plug Return Negative Return Negative Feed A Feed B 60534 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E AppendixC Connecting to DC Power E Connecting to DC Power Step 8 A Insert the terminal block plug in the terminal block header on the switch rear panel as shown in Figure C 10 Caution Ste
76. ernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the software documentation LEDs You can use the switch LEDs to monitor switch activity and its performance Figure 1 15 Figure 1 16 and Figure 1 17 show the switch LEDs and the Mode button that you use to select one of the port modes All LEDs are visible through the GUI management applications the Network Assistant application for multiple switches and the device manager GUI for a single switch The switch software configuration guide describes how to use the command line interface CLI to configure and monitor individual switches and switch clusters Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 ais Chapter1 Product Overview HZ 10 100 and 10 100 1000 Ports Figure 1 15 Catalyst 3750 24TS 3750G 24T 3750G 16TD 3750 48TS 3750G 48TS 3750G 24TS and 3750G 24TS 1U Switch LEDs 86545 1 Mode button 6 Master LED 2 Stack LED 7 RPS LED 3 Speed LED 8 System LED 4 Duplex LED 9 Port LED 5 Status LED Catalyst 3750 Switch Hardware Installation Guide E OL 6336 07 Chapter1 Product Overview 10 100 and 10 100 1000 Ports W Figure 1 16 Catalyst 3750G 12S and Catalyst 3750G 12S SD Switch LEDs D OwP lt COSPEEp lg l Sstack 4 it MODE 132966 l OOOOOD 1 Mode button 5 Status LED 2 Stack LED
77. ese steps to connect a fiber optic cable to a XENPAK module Warning A Class 1 laser product Statement 1008 Caution Step 1 Step 2 Step 3 Step 4 Step 5 Do not remove the rubber plugs from the XENPAK module ports or the rubber caps from the fiber optic cable until you are ready to connect the cable The plugs and caps protect the XENPAK module ports and cables from contamination and ambient light Remove the rubber plugs from the XENPAK module ports and the fiber optic cable and store them for future use Align the fiber optic cable SC connector with the XENPAK module connector so that transmit TX on the cable meets receive RX on the XENPAK module connector and RX on the cable meets TX on the XENPAK module Insert the fiber optic cable connector into the XENPAK module ports see Figure 2 58 Insert the other cable end into a fiber optic receptacle on a target device Observe the XENPAK module port status LED e The LED turns green when the switch and the target device have an established link e The LED turns amber while the STP discovers the network topology and searches for loops This process takes about 30 seconds and then the port LED turns green e Ifthe LED is off the target device might not be turned on there might be a cable problem or there might be problem with the adapter installed in the target device See Chapter 3 Troubleshooting for solutions to cabling problems Cataly
78. g one of the MT RJ fiber optic patch cables listed in Table B 1 Use the Cisco part numbers in Table B 1 to order the patch cables that you need E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 AppendixB Connector and Cable Specifications Connector Specifications W Figure B 3 MT RJ Connector Table B 1 MT RJ Patch Cables for 1OOBASE FX Connections Type Cisco Part Number 1 meter MT RJ to SC multimode cable CAB MTRJ SC MM 1M 3 meter MT RJ to SC multimode cable CAB MTRJ SC MM 3M 5 meter MT RJ to SC multimode cable CAB MTRJ SC MM 5M 1 meter MT RJ to ST multimode cable CAB MTRJ ST MM 1M 3 meter MT RJ to ST multimode cable CAB MTRJ ST MM 3M 5 meter MT RJ to ST multimode cable CAB MTRJ ST MM 5M SFP Module Ports The Catalyst 3750 switch uses SFP modules for fiber optic and copper uplink ports See the Catalyst 3750 release notes for a list of supported SFP modules Figure B 4 Fiber Optic SFP Module LC Connector 58476 A Warning Invisible laser radiation may be emitted from disconnected fibers or connectors Do not stare into beams or view directly with optical instruments Statement 1051 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix B Connector and Cable Specifications E Connector Specifications Figure B 5 Copper SFP Module RJ 45 Connector Pin Label 12345678
79. hes One RJ 45 to DB 9 adapter cable Mounting kit containing Four rubber feet for mounting the switch on a table Two 19 inch rack mounting brackets Four Phillips flat head screws for attaching the brackets to the switch Catalyst 3750G 24TS switch Six Phillips flat head screws for attaching the brackets to the switch Catalyst 3750 24TS 3750G 24TS 1U 3750G 24T 3750 48TS 3750G 48TS 3750 24PS 3750G 12S 3750G 12S SD 3750G 24PS 3750 48PS 3750G 48PS 3750G 16TD 3750G 24WS S25 and 3750G 24WS S50 switches Four Phillips machine screws for attaching the brackets to a rack One cable guide and one black Phillips machine screw for attaching the cable guide to one of the mounting brackets One RPS connector cover for wall mounting Two Phillips pan head screws for attaching the RPS cover Four Phillips truss head screws for wall mounting brackets StackWise cable 0 5 meter 1 meter or 3 meter cable Note If you do not specify the length of the Stack Wise cable the 0 5 meter cable is supplied Verifying Switch Operation Before you install the switch in a rack on a wall or on a table or shelf you should power on the switch and verify that the switch passes POST See the Running Express Setup section in the getting started guide for the steps required to connect a PC to the switch and to run Express Setup Catalyst 3750 Switch Hardware Installation Guide 26 E OL 6336 07 Chapter2 Switch Installatio
80. iption 1 10 10 100 and 10 100 1000 Ports 1 10 100BASE FX Ports 1 12 SFP Module Slots 1 12 SFP Modules 1 13 XENPAK Module Slot Catalyst 3750G 16TD Switch 1 13 LEDs 1 13 System LED 1 17 RPS LED 1 17 Catalyst 3750 Switch Hardware Installation Guide E Contents Master LED 1 18 Port LEDs and Modes 1 18 Rear Panel Description 1 22 Rear Panel Overview 1 22 StackWise Ports 1 25 Power Connectors 1 25 Internal Power Supply Connector 1 26 DC Power Connector 1 26 Cisco RPS Connector 1 26 Console Port 1 27 Management Options 1 27 Network Configurations 1 28 CHAPTER 2 Switch Installation 2 1 Preparing for Installation 2 1 Warnings 2 2 Installation Guidelines 2 5 Verifying Package Contents 2 6 Verifying Switch Operation 2 6 Powering On the Switch and Running POST 2 7 Powering Off the Switch 2 7 Planning the Stack 2 7 Planning Considerations 2 8 Powering Considerations 2 8 Cabling Considerations 2 8 Recommended Cabling Configurations 2 10 Installing the Switch 2 11 Rack Mounting 2 11 Removing Screws from the Switch 2 12 Attaching Brackets to the Catalyst 3750G 24TS Switch 2 14 Attaching Brackets to the Catalyst 3750G Integrated Wireless LAN Controller Switches 2 17 Attaching Brackets to All Other Catalyst 3750 Switches 2 18 Mounting the Switch ina Rack 2 24 Attaching the Cable Guide 2 26 Wall Mounting 2 27 Attaching the Brackets to the Switch for Wall Mounting 2 28 Attaching the RPS Connector Cover 2 28 Mounting the Swi
81. ire assembly to the switch rear panel ground connector as shown in Figure C 3 Using a ratcheting torque screwdriver torque each ground lug screw to 15 lbf in 240 ozf in Use either the front ground connector or the rear ground connector You cannot use both at the same time Figure C 3 Torquing Ground Lug Screws 1 Torque to 15 Ibf in I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide jg AppendixC Connecting to DC Power HI Connecting to DC Power Wiring the DC Input Power Source A Warning A Before performing any of the following procedures ensure that power is removed from the DC circuit Statement 1003 Warning A Only trained and qualified personnel should be allowed to install replace or service this equipment Statement 1030 Caution A You must connect the Catalyst 3750G 12S SD switch only to a DC input power source that has an input supply voltage from 36 to 72 VDC If the supply voltage is not in this range the switch might not operate properly or might be damaged Caution D The switch must be installed with 5 A branch circuit protection Note Step 1 Step 2 This installation must comply with all applicable codes To wire the switch to a DC input power source follow these steps Apply tape to the circuit breaker switch handle and move the circuit breaker handle to the off position Locate and remove the terminal
82. irs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 10 Port 3 is above port 4 and so on The SFP module slots are numbered 49 to 52 Figure 1 10 Catalyst 3750G 48TS Front Panel 1 10 100 1000 ports 2 SFP module slots Catalyst 3750G 24PS Switch Front Panel Description The 10 100 1000 PoE ports on the Catalyst 3750G 24PS switch are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 11 Port 3 is above port 4 and so on The SFP module slots are numbered 25 to 28 Figure 1 11 Catalyst 3750G 24PS Switch Front Panel 1 10 100 1000 PoE ports 2 SFP module slots Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter 1 Product Overview Front Panel Description W Catalyst 3750G 48PS Switch Front Panel Description The 10 100 1000 PoE ports on the Catalyst 3750G 48PS switch are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 12 Port 3 is above port 4 and so on The SFP module slots are numbered 49 to 52 Figure 1 12 Catalyst 3750G 48PS Switch Front Panel 1 10 100 1000 PoE ports 2 SFP module slots Catalyst 3750G 16TD Switch Front Panel Description The 10 100 1000 ports on the Catalyst 3750G 16TD switch are grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown i
83. isco com Note Before installing configuring or upgrading the switch see the release notes on Cisco com for the latest information Catalyst 3750 Switch Software Configuration Guide not orderable but available on Cisco com Catalyst 3750 Switch Command Reference not orderable but available on Cisco com Catalyst 3750 3560 3550 2970 and 2960 Switch System Message Guide not orderable but available on Cisco com Device manager online help available on the switch Getting Started with Cisco Network Assistant not orderable but available on Cisco com Cisco Small Form Factor Pluggable Modules Installation Notes order number DOC 7815160 These compatibility matrix documents are available from this Cisco com site http www cisco com en US products hw modules ps5455 products_device_support_tables_list html Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix not orderable but available on Cisco com Cisco 100 Megabit Ethernet SFP Modules Compatibility Matrix not orderable but available on Cisco com Cisco CWDM SFP Transceiver Compatibility Matrix not orderable but available on Cisco com Cisco Small Form Factor Pluggable Modules Compatibility Matrix not orderable but available on Cisco com Compatibility Matrix for IOOOBASE T Small Form Factor Pluggable Modules not orderable but available on Cisco com I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Preface WE Obtai
84. iver to the latest version available from the manufacturer Cabling Distance If the port statistics show excessive FCS late collision or alignment errors verify that the cable distance from the switch to the connected device meets the recommended guidelines See the Cable and Adapter Specifications section on page A 4 for cabling guidelines Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 PEN Chapter3 Troubleshooting WE Clearing the Switch IP Address and Configuration Clearing the Switch IP Address and Configuration If you have configured a new switch with an incorrect IP address or if all of the switch LEDs start blinking when you try to enter Express Setup mode you can clear the IP address that is configured on the switch A Caution This procedure clears the IP address and all configuration information that is stored on the switch Do not follow this procedure unless you want to completely reconfigure the switch Follow these steps to return your switch to the factory default settings 1 Press and hold the Mode button see Figure 1 15 on page 1 14 Figure 1 16 on page 1 15 and Figure 1 17 on page 1 15 The switch LEDs begin blinking after about 2 seconds If the switch is not configured the LEDs above the mode button turn green You can omit this step and run Express Setup to configure the switch 2 Continue holding down the Mode button The LEDs stop blinking after an additional 8 s
85. l Adapter Device Signal DB 9 Pin Signal TxD 2 RxD GND 5 GND GND 5 GND RxD 3 TxD DSR 4 DTR CTS pi RTS Table B 5 lists the pinouts for the console port RJ 45 to DB 25 female DTE adapter and the console device Note The RJ 45 to DB 25 female DTE adapter is not supplied with the switch You can order a kit part number ACS DSBUASYN containing this adapter from Cisco Table B 5 Console Port Signaling Using a DB 25 Adapter Switch Console RJ 45 to DB 25 Console Port DTE Terminal Adapter Device Signal DB 25 Pin Signal RTS 5 CTS DTR 6 DSR TxD 3 RxD GND 7 GND GND 7 GND RxD 2 TxD DSR 20 DTR CTS 4 RTS Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 APPENDIX Connecting to DC Power This appendix describes how to make DC power connections to the Catalyst 3750G 12S SD switch See the Installing the Switch section on page 2 11 for instructions on installing the switch Connecting to DC Power To connect the Catalyst 3750G 12S SD switch to a DC input power source follow the steps in these sections e Preparing for Installation page C 2 e Grounding the Switch page C 2 e Wiring the DC Input Power Source page C 4 Warning Ethernet cables must be shielded when used in a central office environment Statement 171 Warning S This unit is intended for installation in restricted access areas A restricted access a
86. l switches in the stack the initial setup dialog appears in the first console where the user presses Enter Follow these steps to complete the setup program and to create an initial configuration for the switch Enter Yes at the following two prompts would you like to enter the initial configuration dialog yes no yes At any point you may enter a question mark for help Use ctrl c to abort configuration dialog at any prompt Default settings are in square brackets I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix D Configuring the Switch with the CLI Based Setup Program HZ Entering the Initial Configuration Information Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Basic management setup configures only enough connectivity for management of the system extended setup will ask you to configure each interface on the system Would you like to enter basic management setup yes no yes Enter a host name for the switch and press Return On a command switch the host name is limited to 28 characters on a member switch to 31 characters Do not use n where n is a number as the last character in a host name for any switch Enter host name Switch host_name Enter an enable secret password and press Return The password can be from 1 to 25 alphanumeric characters can start with a number is case sensitive allows spaces but ignores leading spaces
87. moving dust plugs from fiber optic SFP modules 2 34 removing dust plugs from fiber optic XENPAK modules 2 36 removing rubber plugs from SFP module 2 42 removing rubber plugs from XENPAK module 2 44 secure terminal block wires C 8 torquing recommendation C 7 using approved cables 1 25 Cisco enhanced power negotiation 1 11 Cisco IOS command line interface 1 27 Cisco IP Phones connecting to 1 11 2 40 Cisco RPS See RPS CiscoView 1 27 Class laser warning 2 3 2 41 2 44 CLI 1 27 accessing by using Express Setup D 2 accessing through console port D 2 code compliance warning 2 4 command line interface See CLI connecting to 10 100 1000 ports 2 39 to 10 100 ports 2 39 to console port B 5 to DC power C 1 to C 8 to SFP modules 2 41 to 2 43 to XENPAK modules 2 44 to 2 45 connecting to the console port D 5 connection procedures 2 39 to 2 45 connectors and cables console port B 5 to B 10 power AC and RPS 1 25 SC connectors B 3 SFP module ports B 3 XENPAK module ports B 4 console port connecting to D 5 connectors and cables B 5 to B 10 described 1 27 conventions document viii crossover cable connecting to 1000BASE T SFP module ports 2 43 pinout four twisted pair 1000BASE T ports B 9 four twisted pair 10 100 ports B 7 D DC circuit warning C 4 DC I grounding note 2 4 DC input power source caution 1 26 DC input voltages for RPS 2300 and RPS 675 A 2 to A 13 DC power connecting to C 1to C 8 RPS
88. n Planning the Stack W Powering On the Switch and Running POST If your configuration has an RPS connect the switch and the RPS to the same AC power source See the Power Connectors section on page 1 25 and see the Cisco RPS documentation for more information amp Note Always set the RPS in standby mode when you are connecting devices to it and in active mode during normal operation To power on the switch connect one end of the AC power cord to the AC power connector on the switch and connect the other end of the power cord to an AC power outlet To power on a DC switch see Appendix C Connecting to DC Power for complete instructions A Warning Attach only the Cisco RPS model to the RPS receptacle PWR RPS2300 PWR675 AC RPS N1 Statement 370 As the switch powers on it begins the POST a series of tests that runs automatically to ensure that the switch functions properly POST lasts approximately 1 minute When the switch begins POST the System the RPS the Master the Status the Duplex the Speed and the Stack LEDs turn green On the PoE switches the PoE LED also turns green as POST begins The System LED flashes green and the other LEDs remain continuous green When POST completes successfully the System LED remains green The RPS LED remains green for some time and then returns to its operating status The other LEDs turn off and return to their operating status When POST fails
89. n Figure 1 13 Port 3 is above port 4 and so on The XENPAK module slot is numbered 1 Note The 10 Gigabit Ethernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the software documentation Figure 1 13 Catalyst 3750G 16TD Switch Front Panel 104572 1 10 100 1000 ports 2 XENPAK module slot I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview HZ 10 100 and 10 100 1000 Ports Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel Description The Catalyst 3750G Integrated Wireless LAN Controller switches have an integrated Cisco wireless LAN controller Depending on the switch model the integrated wireless controller can support up to 25 or 50 Cisco Lightweight Access Points The 10 100 1000 PoE ports on the Catalyst 3750G 24WS S25 and the 3750G 24WS S50 switch are numbered 1 through 24 and grouped in pairs The first member of the pair port 1 is above the second member port 2 as shown in Figure 1 14 Port 3 is above port 4 and so on The SFP module slots are numbered 25 and 26 The switch also has two internal Gigabit Ethernet ports that connect the switch and the controller The internal ports are numbered as ports 27 and 28 and are not visible on the front panel Figure 1 14 Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switches Front Panel 141726 1 10 100 1000 PoE ports 2 SFP module slots 10 100 and 10 100 1000 Po
90. n Guide 246 i OL 6336 07 CHAPTER Troubleshooting The LEDs on the front panel provide troubleshooting information about the switch They show failures in the power on self test POST port connectivity problems and overall switch performance For a full description of the switch LEDs see the LEDs section on page 1 13 You can also get statistics from the browser interface from the command line interface CLD or from a Simple Network Management Protocol SNMP workstation See the software configuration guide the switch command reference guide on Cisco com or the documentation that came with your SNMP application for details This chapter describes these topics for troubleshooting problems e Diagnosing Problems page 3 1 e Clearing the Switch IP Address and Configuration page 3 6 e Replacing a Failed Stack Member page 3 6 e Finding the Switch Serial Number page 3 7 Diagnosing Problems The LEDs on the front panel provide troubleshooting information about the switch They show power on self test POST failures port connectivity problems and overall switch performance You can also get statistics from the CLI or from an SNMP workstation See the software configuration guide and the switch command reference on Cisco com or the documentation that came with your SNMP application for more information This section includes these troubleshooting topics e Verify Switch POST Results section on page 3 2 e Monitor
91. n nonvolatile RAM NVRAM by selecting option 2 Enter your selection 2 2 Make your selection and press Return After you complete the setup program the switch can run the default configuration that you created If you want to change this configuration or want to perform other management tasks use one of these tools e Command line interface CLI e Network Assistant for one or more switches To use the CLI enter commands at the Switch gt prompt through the console port by using a terminal program or through the network by using telnet For configuration information see the switch software configuration guide or the switch command reference To use the Network Assistant see the Getting Started with Cisco Network Assistant guide on Cisco com I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix D Configuring the Switch with the CLI Based Setup Program HZ Entering the Initial Configuration Information Catalyst 3750 Switch Hardware Installation Guide u OL 6336 07 Numerics 10 100 1000 ports cable lengths 2 5 connecting to 2 39 described 1 10 illustrated 1 4 numbering 1 6 pinouts B 2 recommended cables 2 40 10 100 ports cable lengths 2 5 connecting to 2 39 described 1 10 illustrated 1 4 numbering 1 4 pinouts B 2 recommended cables 2 40 100BASE FX ports patch cables B 3 19 and 24 inch racks 2 12 5 A branch circuit protection caution C 4 A AC power connecting
92. nd in the CLI to enable the automatic medium dependent interface crossover auto MDIX feature When you enable the auto MDIX feature the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly Therefore you can use either a crossover or a straight through cable for connections to a copper 10 100 10 100 1000 or 1OOOBASE T SFP module port on the switch no matter what type of device is on the other end of the connection The auto MDIX feature is enabled by default on switches running Cisco IOS Release 12 2 18 SE or later For releases between Cisco IOS Release 12 1 14 EA1 and 12 2 18 SE the auto MDIX feature is disabled by default For configuration information for this feature see the switch software configuration guide or the switch command reference Many legacy powered devices including older Cisco IP phones and access points that do not fully support IEEE 802 3af might not support PoE when connected to the switches by a crossover cable 100BASE FX Ports The 1LOOBASE FX ports use 50 125 or 62 5 125 micron multimode fiber optic cabling In full duplex mode the cable length from a switch to an attached device cannot exceed 6 562 feet 2 kilometers The 100BASE FX ports operate only at 100 Mb s in either full or half duplex mode and do not support autonegotiation The half duplex mode is the default setting You can connect a LOOBASE FX port to an SC or ST port on a target devic
93. nd the brackets that you use depend on whether you are attaching the brackets for a 19 inch or a 24 inch rack Figure 2 14 through Figure 2 19 show how to attach each type bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Figure 2 14 Attaching Brackets for 19 inch Racks Front Panel Forward 86839 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide P24 OL 6336 07 Chapter2 Switch Installation Installing the Switch W Figure 2 15 Attaching Brackets for 24 Inch Racks Front Panel Forward 86557 1 Phillips flat head screws Figure 2 16 Attaching Brackets for 19 Inch Racks Rear Panel Forward DC INPUT S FOR A sfgeTegyoTe Hey a MANUAL 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 m Chapter2 Switch Installation W installing the Switch Figure 2 17 Attaching Brackets for 24 Inch Racks Rear Panel Forward 1 Phillips flat head screws Figure 2 18 Attaching Brackets for 19 Inch Telco Racks 86558 1 Phillips flat head screws Figure 2 19 Attaching Brackets for 24 Inch Telco Racks 86559 1 Phillips flat head screws Catalyst 3750 Switch Hardware Installation Guide P26 E OL 6336 07 Chapter2 Switch Installation Installing the Switch W Attaching Brackets to the Catalyst 3750G Integr
94. nect a Cisco IP Phone or Cisco Aironet Access Point to a Catalyst 3750 PoE switch 10 100 or 10 100 1000 port and to an AC power source for redundant power The powered device might change to the AC power source as its primary power source when connected to it In that case the PoE port becomes the backup power source for the powered device If the primary source fails the second power source becomes the primary power source to the powered device During the power transfer an IP Phone might reboot or reestablish link with the switch I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview 10 100 and 10 100 1000 Ports For information about Cisco IP Phones and Cisco Aironet Access Points see the documentation that came with your IP phone or access point Note 100BASE TX and 1000BASE T traffic requires a Category 5 or later cable LOBASE T traffic can use Category 3 or Category 4 cables When you connect the switch to workstations servers routers and Cisco IP Phones be sure that the cable is a straight through cable When you connect the switch to switches or hubs use a crossover cable When using a straight through or crossover cable for 1000BASE T connections be sure to use a twisted four pair Category 5 or later cable for proper operation Pinouts for the cables are described in Appendix A Technical Specifications You can use the mdix auto interface configuration comma
95. ng You can access the device manager from anywhere in your network through a web browser For more information see the device manager online help Cisco IOS command line interface CLI The switch CLI is based on Cisco IOS software and is enhanced to support desktop switching features You can fully configure and monitor the switch and switch cluster members from the CLI You can access the CLI either by connecting your management station directly to the switch console port or by using Telnet from a remote management station See the Catalyst 3750 Switch Command Reference on Cisco com for more information CiscoView application The CiscoView device management application displays the switch image that you can use to set configuration parameters and to view switch status and performance information The Cisco View application which you purchase separately can be a standalone application or part of a Simple Network Management Protocol SNMP platform See the CiscoView documentation for more information I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview W Management Options e SNMP network management You can manage switches from a SNMP compatible management station that is running platforms such as HP OpenView or SunNet Manager The switch supports a comprehensive set of Management Information Base MIB extensions and four Remote Monitoring RMON groups See the switch software config
96. ng to an SFP Module This section describes how to connect to SFP modules e For instructions on how to connect to fiber optic SFP modules see the Connecting to 1000BASE T SFP Modules section e For instructions on how to connect to 1000BASE T SFP modules see the Connecting to 1000BASE T SFP Modules section e For instructions on how to install or remove an SFP module see the Installing and Removing SFP Modules section on page 2 33 Connecting to a Fiber Optic SFP Module A Follow these steps to connect a fiber optic cable to an SFP module Warning Class 1 laser product Statement 1008 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide Chapter 2 Switch Installation WE Connecting to an SFP Module A Caution Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber optic cable until you are ready to connect the cable The plugs and caps protect the SFP module ports and cables from contamination and ambient light Before you connect the switch to the SFP module be sure that you understand the port and cabling stipulations in Installation Guidelines section on page 2 5 and in the SFP Module Slots section on page 1 12 Step 1 Remove the rubber plugs from the module port and fiber optic cable and store them for future use Step2 Insert one end of the fiber optic cable into the SFP module port see Figure 2 56 Step3 Insert the
97. ning Documentation Obtaining Support and Security Guidelines Obtaining Documentation Obtaining Support and Security Guidelines For information on obtaining documentation obtaining support providing documentation feedback security guidelines and also recommended aliases and general Cisco documents see the monthly What s New in Cisco Product Documentation which also lists all new and revised Cisco technical documentation at this URL http www cisco com en US docs general whatsnew whatsnew html Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Features Product Overview The Catalyst 3750 family of switches also referred to as the switches are stackable Ethernet switches to which you can connect devices like Cisco IP Phones Cisco Wireless Access Points workstations and other network devices such as servers routers and other switches This chapter provides a functional overview of the Catalyst 3750 switch models These topics are included e Features page 1 1 e Front Panel Description page 1 3 e Rear Panel Description page 1 22 e Management Options page 1 27 The switches can be deployed as backbone switches aggregating 1 OBASE T 1 OOBASE TX and 1000BASE T Ethernet traffic from other network devices See the switch software configuration guide for examples that show how you might deploy the switches in your network Figure 1 2 through Figure 1 13 show the Catalyst 3750 switches These are th
98. oE ports 2 SFP module slots and an integrated Cisco wireless LAN controller supporting up to 50 Cisco Lightweight Access Points e 10 Gigabit Ethernet Configuration Catalyst 3750G 16TD switch 16 10 100 1000 Ethernet ports and 1 10 Gigabit Ethernet XENPAK module slot amp Note The 10 Gigabit Ethernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the software documentation e The switches support these SFP modules amp 100BASE FX multimode fiber MMF 1000BASE BX 1000BASE LX 1000BASE SX 1000BASE ZX 1000BASE T Coarse wavelength division multiplexing CWDM Note When you install 1000BASE T SFP modules in Catalyst 3750 switches they can operate either at 10 100 or 1000 Mb s in full duplex mode or at 10 or 100 Mb s in half duplex mode e Fora list of the XENPAK modules that the Catalyst 3750G 16TD switch supports see Table B 2 on page B 4 e Configuration For 10 100 ports autonegotiates the speed and duplex settings For 10 100 1000 ports autonegotiates the speed and supports only full duplex mode amp Note You can configure duplex mode to half full or autonegotiate on Gigabit Ethernet interfaces if the speed is set to 10 or 100 Mb s You cannot configure half duplex mode on Gigabit Ethernet interfaces if the interface speed is 1000 Mb s e The Catalyst 3750 switches support stacking You can stack up to nine switches in a stack by cabling the StackWi
99. office environment Statement 171 Warning A If a redundant power system RPS is not connected to the switch install an RPS connector cover on the back of the switch Statement 265 Warning A To comply with safety regulations mount switches on a wall with the front panel facing up Statement 266 Warning A Attach only the following Cisco RPS model to the RPS receptacle PWR RPS2300 PWR675 AC RPS N1 Statement 370 Warning A Do not work on the system or connect or disconnect cables during periods of lightning activity Statement 1001 Warning Read the installation instructions before connecting the system to the power source Statement 1004 Catalyst 3750 Switch Hardware Installation Guide 22 E OL 6336 07 Chapter2 Switch Installation Preparing for Installation W A Warning To prevent bodily injury when mounting or servicing this unit in a rack you must take special precautions to ensure that the system remains stable The following guidelines are provided to ensure your safety e This unit should be mounted at the bottom of the rack if it is the only unit in the rack e When mounting this unit in a partially filled rack load the rack from the bottom to the top with the heaviest component at the bottom of the rack e Ifthe rack is provided with stabilizing devices install the stabilizers before mounting or servicing the unit in the rack Statement 1006
100. ont panel of the Catalyst 3750G 16TD switch These field replaceable transceiver modules provide 10 Gigabit interfaces Note The 10 Gigabit Ethernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the switch software documentation OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter 2 Switch Installation W Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch See the Catalyst 3750 release notes for the list of XENPAK modules that the Catalyst 3750G 16TD switch supports Use only Cisco XENPAK modules on the Catalyst 3750G 16TD switch Each XENPAK module has an internal serial EEPROM that is encoded with security information This encoding provides a way for Cisco to identify and validate that the XENPAK module meets the requirements for the switch See Table B 2 on page B 4 for cable requirements for XENPAK module connections For detailed instructions on installing removing cabling and troubleshooting the XENPAK module see your XENPAK module documentation Installing a XENPAK Module A Figure 2 50 shows a XENPAK module Caution A We strongly recommend that you do not install or remove fiber optic XENPAK modules with cables attached because of the potential damage to the cables the cable connector or the optical interfaces in the XENPAK module Disconnect all cables before removing or installing the XENPAK module Caution Step 1 Do no
101. or television reception try to correct the interference by using one or more of the following measures Turn the television or radio antenna until the interference stops e Move the equipment to one side or the other of the television or radio e Move the equipment farther away from the television or radio e Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses Modifications to this product not authorized by Cisco Systems Inc could void the FCC approval and negate your authority to operate the product The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California Berkeley UCB as part of UCB s public domain version of the UNIX operating system All rights reserved Copyright 1981 Regents of the University of California NOTWITHSTANDING ANY OTHER WARRANTY HEREIN ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED AS IS WITH ALL FAULTS CISCO AND THE ABOVE NAMED SUPPLIERS DISCLAIM ALL WARRANTIES EXPRESSED OR IMPLIED INCLUDING WITHOUT LIMITATION THOSE OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING USAGE OR TRADE PRACTICE IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT SPECIAL CONSEQUENTIAL OR INCIDEN
102. or terminals Avoid using such interconnection methods unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard A restricted access area can be accessed only through the use of a special tool lock and key or other means of security Statement 1072 The 10 100 ports on the Catalyst 3750 24PS and 3750 48PS switches and the 10 100 1000 ports on the Catalyst 3750G 24PS 3750G 48PS 3750G 24WS S25 and 3750G 24WS S50 switches provide PoE support for devices that are compliant with IEEE 802 3af They also provide Cisco pre standard PoE support for Cisco IP Phones and Cisco Aironet Access Points Each of the Catalyst 3750 24PS switch 10 100 ports or the Catalyst 3750G 24PS switch 10 100 1000 ports can deliver up to 15 4 W of PoE On the Catalyst 3750 48PS or 3750G 48PS switches any 24 of the 48 10 100 or 10 100 1000 ports can deliver 15 4 W of PoE or any combination of the ports can deliver an average of 7 7 W of PoE at the same time up to a maximum switch power output of 370 W Each of the Catalyst 3750G 24WS S25 and 3750G 24WS S50 switch 10 100 1000 ports can deliver up to 15 4 W of PoE On a per port basis you can control whether a Catalyst 3750 PoE port automatically provides power when an IP phone or an access point is connected The device manager and the CLI provide two PoE settings for each 10 100 or 10 100
103. ort and interface troubleshooting 3 4 port LEDs 1 18 to 1 20 port modes changing 1 13 LEDs 1 18 See also mode button ports 10 100 1 10 pinouts B 2 recommended cables 2 40 10 100 1000 1 10 pinouts B 2 recommended cables 2 40 100BASE FX patch cables B 3 E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 ports continued numbering of 10 100 1 10 numbering of 10 100 1000 1 10 numbering of SFP module ports 1 8 to 1 10 POST LEDs 3 2 results 3 1 running at power on 3 2 running at powerup 2 7 D 6 power connecting to 2 7 connectors 1 22 1 25 specifications A 2 to A 13 power connection warning 2 2 power on 2 7 Power over Ethernet See PoE power supply AC power outlet 1 26 RPS connector 1 25 procedures connection 2 39 to 2 45 DC grounding C 2 to C 3 installation 2 11 to 2 30 product disposal warning 2 3 publications related ix rack mounting 2 12 to 2 30 rear panel clearance 2 5 description 1 22 to 1 27 redundant power supply See RPS removing SFP modules 2 34 to 2 35 removing XENPAK modules 2 38 restricted access area warning 2 3 C 1 RJ 45 connector console port B 5 RJ 45 console port 1 22 RPS attachment warning 1 26 2 2 2 7 connecting to 2 7 connector 1 26 connector cover warning 2 2 2 28 LED 1 17 to 1 18 Index S safety 2 2 SC connector B 3 serial number location 3 7 servicing equipment warning 2 3 C 4 SFP module rubber plugs caution 2 42 SFP modules 1000BASE T
104. otfuctfae CISCO Catalyst 3750 Switch Hardware Installation Guide February 2007 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL STATEMENTS INFORMATION AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS Americas Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 Text Part Number OL 6336 07 THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY The following information is for FCC compliance of Class A devices This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to
105. p 9 A Secure the wires coming in from the terminal block so that they cannot be disturbed by casual contact For example use tie wraps to secure the wires to the rack Figure C 10 Inserting the Terminal Block in the Block Header 132636 1 Tie wrap 2 Terminal block Remove the tape from the circuit breaker switch handle and move the circuit breaker handle to the on position Caution A To comply with the intrabuilding lightning surge requirements intrabuilding wiring must be shielded and the shield for the wiring must be grounded at both ends Caution The Catalyst 3750G 12S SD switch is suitable only for intrabuilding or nonexposed wiring connections Catalyst 3750 Switch Hardware Installation Guide lt OL 6336 07 APPENDIX D Configuring the Switch with the CLI Based Setup Program This appendix provides a CLI based setup procedure for a standalone switch or a switch stack Before connecting the switch to a power source review the safety warnings in Chapter 2 Switch Installation Note For detailed installation procedures on rack mounting your switch stacking your switches or connecting to small form factor pluggable SFP or XENPAK modules see Chapter 2 Switch Installation For product overview information see Chapter 1 Product Overview These steps describe how to do a simple installation 1 Accessing the CLI page D 2 Taking Out What You Nee
106. p6 Secure the XENPAK module in place by tightening the two captive installation screws Do not overtighten the captive screws Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 E 237 Chapter 2 Switch Installation W Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch Removing a XENPAK Module To remove a XENPAK module follow these steps Step 1 Attach an ESD preventive wrist strap to your wrist and to a bare metal surface on the chassis Step2 Disconnect the cable from the XENPAK module For fiber optic modules install the optical bore dust plugs Step3 Loosen the two captive installation screws that secure the XENPAK module in the slot Step4 Carefully pull on the two captive installation screws to disconnect the XENPAK module from the slot Step5 Grasp the edges of the XENPAK module and carefully slide it out of the slot as shown in Figure 2 53 Figure 2 53 Removing a XENPAK Module 104574 1 Optical bore dust plug 2 Captive installation screw Catalyst 3750 Switch Hardware Installation Guide n OL 6336 07 Chapter 2 Switch Installation Step 6 Connecting to the 10 100 and 10 100 1000 Ports W Use two Phillips head screws to attach the XENPAK module slot cover to the switch front panel as shown in Figure 2 54 Figure 2 54 Replacing the XENPAK Module Slot Cover 1 Phillips head screw 2 Module slot cover Connecting to the 10 100 and 10 100 1000
107. plug See Figure B 11 Figure B 11 Identifying a Crossover Cable Pin 1 on one connector and pin 1 on the other connector e should be different colors Pin 1 gt Kp Pind 200915 Note You can use the mdix auto interface configuration command in the CLI to enable the automatic medium dependent interface crossover auto MDIX feature When the auto MDIX feature is enabled the switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly Therefore you can use either a crossover or a straight through cable for connections to a copper 10 100 10 100 1000 or 1OOOBASE T SFP module port on the switch regardless of the type of device on the other end of the connection The auto MDIX feature is enabled by default on switches running Cisco IOS Release 12 2 18 SE or later For releases between Cisco IOS Release 12 1 14 EA1 and 12 2 18 SE the auto MDIX feature is disabled by default For configuration information for this feature see the switch software configuration guide or the switch command reference Catalyst 3750 Switch Hardware Installation Guide B 8 OL 6336 07 Appendix B Connector and Cable Specifications Cable and Adapter Specifications W Four Twisted Pair Cable Pinouts for 1000BASE T Ports Figure B 12 and Figure B 13 show the schematics of four twisted pair cables for 10 100 1000 ports on
108. r Power rating 0 16 kVA Physical Dimensions Weight 14 Ib 6 4 kg Dimensions H x W x D 1 73 x 17 5 x 16 1 in 4 4 x 44 5 x 40 9 cm I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Appendix A Technical Specifications Table A 15 Environmental Ranges Specifications for the Catalyst 3750G 24WS S25 and 3750G 24WS S50 Switch Operating temperature 32 to 113 F 0 to 45 C Storage temperature 13 to 158 F 25 to 70 C Relative humidity 10 to 85 noncondensing Operating altitude Up to 10 000 ft 3049 m Storage altitude Up to 15 000 ft 4573 m Power Requirements AC input voltage 100 to 240 VAC autoranging 4 to 8 A 50 to 60 Hz DC input voltages for RPS 2300 and 675 12 V 14 A and 48 V 7 8 A Power consumption 520 W Power dissipation 190 W 648 BTUs per hour Power rating 0 52 kVA Power over Ethernet Range from 4 to 15 4 W per port up to 370 W switch maximum Physical Dimensions Weight 21 1b 9 5 kg Dimensions H x W x D 3 5 x 17 5 x 14 5in 8 9 x 44 5 x 36 8 cm E Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 F _ APPENDIX B Connector and Cable Specifications This appendix describes the Catalyst 3750 switch ports and the cables and adapters that you use to connect the switch to other devices This appendix includes these sec
109. r terminal to match these console port default characteristics e 9600 baud e 8 data bits e 1 stop bit e No parity e None flow control Connecting to a Power Source Step 1 Step 2 Step 3 Follow these steps to connect to a power source Connect one end of the supplied AC power cord to the power connector on a switch rear panel See Figure D 4 Connect the other end of the power cable to a grounded AC outlet Optional If you have a stack power on all the switches in the stack amp Note If you have stacked your switches see the Powering Considerations section on page 2 8 for more information Note If you are connecting the switch to a Cisco redundant power system RPS see the documentation that shipped with your RPS As the switch powers on it begins the power on self test POST a series of tests that runs automatically to ensure that the switch functions properly POST lasts approximately 1 minute When the switch begins POST the System the RPS the Master the Status the Duplex the Speed and the Stack LEDs turn green On the Power over Ethernet PoE switches the PoE LED also turns green as POST begins The System LED flashes green and the other LEDs remain continuous green Catalyst 3750 Switch Hardware Installation Guide lt OL 6336 07 _ Appendix D Configuring the Switch with the CLI Based Setup Program Entering the Initial Configuration Information W When P
110. radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case users will be required to correct the interference at their own expense The following information is for FCC compliance of Class B devices The equipment described in this manual generates and may radiate radio frequency energy If it is not installed in accordance with Cisco s installation instructions it may cause interference with radio and television reception This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules These specifications are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation Modifying the equipment without Cisco s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices In that event your right to use the equipment may be limited by FCC regulations and you may be required to correct any interference to radio or television communications at your own expense You can determine whether your equipment is causing interference by turning it off If the interference stops it was probably caused by the Cisco equipment or one of its peripheral devices If the equipment causes interference to radio
111. rea can be accessed only through the use of a special tool lock and key or other means of security Statement 1017 Note amp We recommend that you use 18 AWG copper wiring for Network Equipment Building Systems NEBS installation This guideline follows the standard guidelines for DC power wiring in the Central Office Note The grounding architecture of this product is DC isolated DC I I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide jg AppendixC Connecting to DC Power HI Connecting to DC Power Preparing for Installation Locate the ground lug and the two number 10 32 screws on the switch rear panel and the DC terminal block plug in the DC switch accessory kit Obtain these necessary tools and equipment e Ratcheting torque screwdriver with a Phillips head that exerts up to 15 pound force inches Ibf in or 240 ounce force inches ozf in of pressure e Panduit crimping tool with optional controlled cycle mechanism model CT 700 CT 720 CT 920 CT 920CH CT 930 or CT 940CH e 6 gauge copper ground wire insulated or noninsulated e Four leads of 18 gauge copper wire e Wire stripping tools for stripping 6 and 18 gauge wires Grounding the Switch A Warning This equipment must be grounded Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor Contact the appropriate electrical inspection authority or an electri
112. replacement switch automatically downgrades to the release that the stack is running The replacement switch rather than the existing switches reboots The replacement switch then has the same configuration for all the interfaces as those of the failed switch Finding the Switch Serial Number If you contact Cisco Technical Assistance you need to know the serial number of your switch Use these figures to locate the serial number on your switch You can also use the show version command to get the serial number e Figure 3 1 Catalyst 3750G 12S and 3750 12S SD Switch Serial Number Location e Figure 3 2 Catalyst 3750G 16TD Switch Serial Number Location e Figure 3 3 Catalyst 3750 24PS Switch Serial Number Location e Figure 3 4 Catalyst 3750G 24PS and 3750G 24TS 1U Switches Serial Number Location e Figure 3 5 Catalyst 3750G 24TS Switch Serial Number Location e Figure 3 6 Catalyst 3750 24TS Switch Serial Number Location e Figure 3 7 Catalyst 3750 24PS Switch Serial Number Location e Figure 3 8 Catalyst 3750G 24WS Switch Serial Number Location e Figure 3 9 Catalyst 3750 48PS Switch Serial Number Location e Figure 3 10 Catalyst 3750G 48PS and 3750G 48TS Switches Serial Number Location e Figure 3 11 Catalyst 3750 48TS Switch Serial Number Location Figure 3 1 Catalyst 3750G 12S and 3750 12S SD Switch Serial Number Location I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter3 Troubleshooting H
113. resses used in this document are not intended to be actual addresses Any examples command display output and figures included in the document are shown for illustrative purposes only Any use of actual IP addresses in illustrative content is unintentional and coincidental Catalyst 3750 Switch Hardware Installation Guide 2004 2007 Cisco Systems Inc All rights reserved CONTENTS Preface vii Audience vii Purpose vii Organization vii Conventions viii Related Publications ix Obtaining Documentation Obtaining Support and Security Guidelines x CHAPTER 1 Product Overview 1 1 Features 1 1 Front Panel Description 1 3 Fast Ethernet Front Panel Switches 1 3 Catalyst 3750 24FS Switch Front Panel Description 1 3 Catalyst 3750 24TS Switch Front Panel Description 1 4 Catalyst 3750 48TS Switch Front Panel Description 1 4 Catalyst 3750 24PS Switch Front Panel Description 1 5 Catalyst 3750 48PS Switch Front Panel Description 1 5 Gigabit Ethernet Switch Front Panel Descriptions 1 6 Catalyst 3750G 12S and Catalyst 3750G 12S SD Switches Front Panel Description 1 6 Catalyst 3750 247 3750G 24TS and 3750G 24TS 1U Switches Front Panel Descriptions 1 6 Catalyst 3750G 48TS Switch Front Panel Description 1 8 Catalyst 3750G 24PS Switch Front Panel Description 1 8 Catalyst 3750G 48PS Switch Front Panel Description 1 9 Catalyst 3750G 16TD Switch Front Panel Description 1 9 Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel Descr
114. rts You can set the 10 100 ports on the Catalyst 3750 switches to operate in any combination of half duplex full duplex 10 Mb s or 100 Mb s You can set the 10 100 1000 ports to operate in 10 or 100 Mb s in half or full duplex or in 1000 Mb s in full duplex You can set both the 10 100 and the 10 100 1000 ports for speed and duplex autonegotiation in compliance with IEEE 802 3AB The default setting is autonegotiate Note You can configure duplex mode to half full or autonegotiate on Gigabit Ethernet interfaces if the speed is set to 10 or 100 Mb s You cannot configure half duplex mode on Gigabit Ethernet interfaces if the interface speed is 1000 Mb s When set for autonegotiation the port senses the speed and duplex settings of the attached device and advertises its own capabilities If the connected device also supports autonegotiation the switch port negotiates the best connection the fastest line speed that both devices support and full duplex transmission if the attached device supports it and configures itself accordingly In all cases the attached device must be within 328 feet 100 meters Catalyst 3750 Switch Hardware Installation Guide P10 i OL 6336 07 _ Chapter 1 Product Overview A 10 100 and 10 100 1000 Ports W Warning Voltages that present a shock hazard may exist on Power over Ethernet PoE circuits if interconnections are made using uninsulated exposed metal contacts conductors
115. s or IEEE 802 3af compliant devices to PoE ports A cable or device that causes a PoE fault must be removed from the network Amber PoE for the port has been disabled Note PoE is enabled by default STAT Off No link or port was administratively shut down port status Green Link present Flashing green Activity Port is sending or receiving data Alternating green amber Link fault Error frames can affect connectivity and errors such as excessive collisions cyclic redundancy check CRC errors and alignment and jabber errors are monitored for a link fault indication Amber Port is blocked by Spanning Tree Protocol STP and is not forwarding data Note After a port is reconfigured the port LED can remain amber for up to 30 seconds as STP checks the switch for possible loops Flashing amber Port is blocked by STP and is sending and receiving packets DUPLX duplex Off Port is operating in half duplex Green Port is operating in full duplex I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter1 Product Overview HZ 10 100 and 10 100 1000 Ports Stack LED Table 1 6 Meaning of LED Colors in Different Modes on the Switch continued Port Mode Port LED Color Meaning SPEED 10 100 and 10 100 1000 ports Off Port is operating at 10 Mb s Green Port is operating at 100 Mb s Flashing green Port is operating at 1000 Mb s
116. s show the member number of a switch in a stack Figure 1 19 shows the LEDs on the first switch which is stack member number 1 For example if you press the Mode button and select Stack the LED for port 1 flashes green The LEDs for port 2 and 3 are solid green as these represent the member numbers of other switches in the stack The other port LEDs are off because there are no more members in the stack Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter1 Product Overview 10 100 and 10 100 1000 Ports W Figure 1 19 Stack LED 4 Bi F g y Ser a ES g 132420 1 Stack member1 3 Stack member 3 2 Stack member 2 When you select the Stack LED the representative Stack LEDs are green when the StackWise ports on the switch rear panel are up and the representative Stack LEDs are amber when the ports are down e SFP module port LEDs 1 and 2 on the Catalyst 3750 24TS switch show the status for StackWise ports 1 and 2 respectively e SFP module port LEDs 3 and 4 on the Catalyst 3750 48TS switch show the status for StackWise ports 1 and 2 respectively e SFP module port LEDs 51 and 52 on the Catalyst 3750G 48TS and 3750G 48PS switches show the status for StackWise ports 1 and 2 respectively e SFP module port LEDs 27 and 28 on the Catalyst 3750G 24TS 3750G 24TS 1U and 3750G 24PS switches show the status for StackWise ports 1 and 2 re
117. se ports StackWise ports are not user configurable Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Chapter1 Product Overview Front Panel Description W e Switches are hot swappable e Connection for an optional Cisco RPS 2300 or Cisco RPS 675 redundant power system RPS that operates on AC input and supplies backup DC power output to the Catalyst 3750 switches The Catalyst 3750G 12S SD switch does not support an RPS Front Panel Description These sections describe the Fast Ethernet and Gigabit Ethernet switches e Fast Ethernet Front Panel Switches page 1 3 e Gigabit Ethernet Switch Front Panel Descriptions page 1 6 e 10 100 and 10 100 1000 Ports page 1 10 e SFP Module Slots page 1 12 e XENPAK Module Slot Catalyst 3750G 16TD Switch page 1 13 e LEDs page 1 13 Fast Ethernet Front Panel Switches These sections describe the front panels for the Catalyst 3750 Fast Ethernet switches e Catalyst 3750 24FS Switch Front Panel Description page 1 3 e Catalyst 3750 24TS Switch Front Panel Description page 1 4 e Catalyst 3750 48TS Switch Front Panel Description page 1 4 e Catalyst 3750 24PS Switch Front Panel Description page 1 5 e Catalyst 3750 48PS Switch Front Panel Description page 1 5 Catalyst 3750 24FS Switch Front Panel Description The 100BASE FX ports on the Catalyst 3750 24FS switch are numbered through 24 as shown in Figure 1 1 The SFP modules slots are numbered 1 left and 2 right
118. spectively e The 10 100 1000 port LEDs 23 and 24 on the Catalyst 3750G 24T switch show the status for StackWise ports 1 and 2 respectively e SFP module port LEDs 11 and 12 on the Catalyst 3750G 12S and the Catalyst 3750G 12S SD switch show the status for StackWise ports and 2 respectively e SFP module port LEDs 25 and 26 on the Catalyst 3750G 24WS S25 and 3750G 24WS S50 switches show the status for StackWise ports and 2 respectively amp Note If the port LEDs are green on all the switches in the stack the stack is operating at full bandwidth 32 Gb s If any of the port LEDs are not green the stack is not operating at full bandwidth Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 a2 Chapter1 Product Overview E Rear Panel Description Rear Panel Description These sections describe the rear panels for the Catalyst 3750 Fast Ethernet switches e Rear Panel Overview page 1 22 e StackWise Ports page 1 25 e Power Connectors page 1 25 e Console Port page 1 27 Rear Panel Overview The switch rear panels have an AC or DC power connector an RPS connector except for the Catalyst 3750G 12S SD switch an RJ 45 console port two StackWise ports and a service port only on the Catalyst 3750G Integrated Wireless LAN Controller switches The switch rear panels are shown in these figures e Catalyst 3750 24TS 3750G 24T 3750G 12S 3750G 16TD and 3750 48TS Switches Rear Panel Figure 1
119. st 3750 Switch Hardware Installation Guide 244 E OL 6336 07 Chapter2 Switch Installation Where to Go Next W Figure 2 58 Connecting to a XENPAK Module Port 1 ISC connector Step6 If necessary reconfigure and restart the switch or target device Where to Go Next If the default configuration is satisfactory the switch needs no further configuration You can use any of these management options to change the default configuration Start the device manager which is in the switch memory to manage individual and standalone switches This is an easy to use web interface that offers quick configuration and monitoring You can access the device manager from anywhere in your network through a web browser For more information see the device manager online help Start the Network Assistant application which is described in the Getting Started with Cisco Network Assistant guide Through this GUI you can configure and monitor a switch cluster or an individual switch Use the CLI to configure the switch as a member of a cluster or as an individual switch from the console See the Catalyst 3750 Switch Command Reference on Cisco com for information on using the CLI with a Catalyst 3750 switch Start an SNMP application such as the Cisco View application OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter 2 Switch Installation HE Where to Go Next Catalyst 3750 Switch Hardware Installatio
120. sted pair crossover cable Note Step 2 Step 3 Step 4 When you connect the switch to a 1000BASE T device be sure to use a four twisted pair Category 5 or higher cable Figure 2 57 Connecting to an SFP Module Port 1 RJ 45 connector Insert the other cable end in an RJ 45 connector on a target device Observe the port status LED e The LED turns green when the switch and the target device have an established link e The LED turns amber while the STP discovers the network topology and searches for loops This process takes about 30 seconds and then the port LED turns green e Ifthe LED is off the target device might not be turned on there might be a cable problem or there might be problem with the adapter installed in the target device See Chapter 3 Troubleshooting for solutions to cabling problems If necessary reconfigure and restart the switch or target device OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E Chapter 2 Switch Installation HZ Connecting to a XENPAK Module Connecting to a XENPAK Module A The 10 Gigabit Ethernet XENPAK modules are referred to as 10 Gigabit Ethernet module ports in the switch software documentation Make sure that the XENPAK module is fully inserted into the module slot and that the captive installation screws are fully tightened before attaching the fiber optic interface cable connector to the XENPAK module connector Follow th
121. sults 3 2 RPS 1 17 to 1 18 I OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide E W index LEDs continued speed 1 18 stack 1 20 STATUS 1 18 system 1 17 troubleshooting with 3 1 3 2 lightning activity warning 2 2 lightning surge caution C 8 link status troubleshooting 3 3 local and national electrical codes compliance 2 4 mode button 1 13 mounting table or shelf 2 30 mounting wall mounting 2 27 mounting brackets attaching 2 14 to 2 23 rack mount 2 24 MT RJ connector B 2 See also 100BASE FX ports NEBS standard for electromagnetic safety 2 4 Network Assistant 1 27 getting started guide ix to configure switch 2 45 Network Equipment Building Systems See NEBS noise electrical 2 5 nonexposed wiring connections caution C 8 O outside connections warning 2 3 overheating warning 2 2 P packing list 2 6 pinouts 10 100 1000 ports B 2 10 100 ports B 2 console port B 10 crossover cables four twisted pair 1000BASE T ports B 9 four twisted pair 10 100 ports B 7 two twisted pair 10 100 ports B 7 RJ 45 to DB 25 terminal adapter B 10 RJ 45 to DB 9 terminal adapter B 9 SFP module ports B 3 straight through cables four twisted pair 10 100 ports B 7 four twisted pair LOOOBASE T ports B 9 two twisted pair 10 100 ports B 6 plug socket accessibility warning 2 3 PoE faults caution 1 19 2 40 high powered devices 1 11 LED 1 18 shock hazard warning 1 11 2 4 2 39 troubleshooting 3 3 p
122. sure that the system remains stable The following guidelines are provided to ensure your safety e This unit should be mounted at the bottom of the rack if it is the only unit in the rack e When mounting this unit in a partially filled rack load the rack from the bottom to the top with the heaviest component at the bottom of the rack e Ifthe rack is provided with stabilizing devices install the stabilizers before mounting or servicing the unit in the rack Statement 1006 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 a 241 Chapter 2 Switch Installation W installing the Switch To install the switch in a 19 inch or 24 inch rack 24 inch racks require optional mounting hardware follow the instructions described in these procedures e Removing Screws from the Switch page 2 12 e Attaching Brackets to the Catalyst 3750G 24TS Switch page 2 14 e Attaching Brackets to the Catalyst 3750G Integrated Wireless LAN Controller Switches page 2 17 e Attaching Brackets to All Other Catalyst 3750 Switches page 2 18 e Mounting the Switch in a Rack page 2 24 e Attaching the Cable Guide page 2 26 Note When you install the switch in a 24 inch rack an optional bracket kit that is not included with the switch is required You can order a kit containing the 24 inch rack mounting brackets and hardware from Cisco For the Catalyst 3750G 24TS switches order part number RCKMNT 3550 1 5RU For the other Catalys
123. t 3750 switches order part number RCKMNT 1RU The Catalyst 3750G 24WS S25 and the 3750G 24WS S50 switches do not support 24 inch rack mounting Removing Screws from the Switch If you plan to install the switch in a rack you must first remove the screws in the switch chassis so that you can attached the mounting brackets e Figure 2 9 Figure 2 10 and Figure 2 11 show how to remove the chassis screws in a 1 rack unit RU switch e Figure 2 12 shows how to remove the chassis screws in a 1 5 RU switch e Figure 2 13 shows how to remove the chassis screws in a 2 RU switch Figure 2 9 Removing Screws from the Catalyst 3750 24TS 3750G 24T 3750 24PS 3750 48PS 3750G 16TD and 3750 48TS Switches 86819 Catalyst 3750 Switch Hardware Installation Guide P22 E OL 6336 07 Chapter 2 Switch Installation Installing the Switch W Figure 2 10 Removing Screws from the Catalyst 3750G 24TS 1U 3750G 24PS 3750G 48PS and 3750G 48TS Switches 126143 Figure 2 11 Removing Screws from the Catalyst 3750G 12S and 3750 12S SD Switch 97170 Figure 2 12 Removing Screws from the 3750G 24TS Switch 86820 Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 a 243 Chapter2 Switch Installation W installing the Switch Figure 2 13 Removing Screws from the 3750G 24WS S25 and the 3750G 24WS S50 Switches 141729 Attaching Brackets to the Catalyst 3750G 24TS Switch The bracket orientation a
124. t remove the dust plugs from the fiber optic XENPAK module or the rubber caps from the fiber optic cable until you are ready to connect the cable The plugs and caps protect the XENPAK module ports and cables from contamination and ambient light Figure 2 50 XENPAK Module o ise D D ow 1 Captive installation screw Sending optical bore A 2 Optical bore dust plug Receiving optical bore To insert a XENPAK module follow these steps Attach an ESD preventive wrist strap to your wrist and to a bare metal surface on the chassis Catalyst 3750 Switch Hardware Installation Guide 236 E OL 6336 07 Chapter2 Switch Installation Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch Step2 Remove the two Phillips head retaining screws from the XENPAK module slot cover and store them for later use Step3 Remove the cover as shown in Figure 2 51 Figure 2 51 Removing the XENPAK Module Slot Cover 104764 1 Phillips head screw 2 Module slot cover Step4 Remove the XENPAK module from the protective packaging Step5 Align the XENPAK module with the guide rails inside the module slot and slide the module into the opening until the back of the XENPAK faceplate is flush with the switch faceplate See Figure 2 52 Figure 2 52 Installing a XENPAK Module in the Catalyst 3750G 16TD Switch 104573 1 Optical bore dust plug 2 Captive installation screw Ste
125. t the switch sends is received by its neighbor but the switch does not receive the traffic that is sent from the neighbor A broken fiber optic cable other cabling or a port issue could cause this one way communication You can enable the UniDirectional Link Detection UDLD protocol on the switch to help identify difficult to find unidirectional link problems UDLD supports a normal mode of operation the default and an aggressive mode In normal mode UDLD detects unidirectional links because of incorrectly connected interfaces on fiber optic connections In aggressive mode UDLD also detects unidirectional links caused by one way traffic on fiber optic and twisted pair links and by incorrectly connected interfaces on fiber optic links For information about enabling UDLD on the switch see the Understanding UDLD section in the software configuration guide Catalyst 3750 Switch Hardware Installation Guide EN OL 6336 07 Chapter3 Troubleshooting Diagnosing Problems W Monitor Switch Performance Review this section when you troubleshoot switch performance problems Speed Duplex and Autonegotiation If the port statistics show a large number of alignment errors frame check sequence FCS or late collisions errors a speed or duplex mismatch might be the problem A common issue with speed and duplex occurs when the duplex settings are mismatched between two switches between a switch and a router or between the switch an
126. talyst 3750G 24TS switch as an example All the Catalyst 3750 switches are wall mounted following the same procedures Note Do not wall mount the Catalyst 3750G 24WS S25 and Catalyst 3750G 24WS S50 switches OL 6336 07 Catalyst 3750 Switch Hardware Installation Guide Chapter2 Switch Installation W installing the Switch Attaching the Brackets to the Switch for Wall Mounting Figure 2 41 shows how to attach a 19 inch bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Figure 2 41 Attaching the 19 inch Brackets for Wall Mounting 86687 1 Phillips truss head screws Attaching the RPS Connector Cover If you are not using an RPS with your switch use the two Phillips pan head screws to attach the RPS connector cover to the back of the switch as shown in Figure 2 42 A Warning If an RPS is not connected to the switch install an RPS connector cover on the back of the switch Statement 265 Figure 2 42 Attaching the RPS Connector Cover on the Catalyst 3750 Switch 86571 1 Phillips pan head screws 3 RPS connector 2 RPS connector cover Catalyst 3750 Switch Hardware Installation Guide Chapter2 Switch Installation Installing the Switch W Mounting the Switch on a Wall For the best support of the switch and cables make sure the switch is attached securely to wall studs or to a firmly attached pl
127. tch ona Wall 2 29 Table or Shelf Mounting 2 30 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 Contents W Connecting StackWise Cable to StackWise Ports 2 30 Installing and Removing SFP Modules 2 33 Installing SFP Modules into SFP Module Slots 2 33 Removing SFP Modules from SFP Module Slots 2 34 Installing and Removing XENPAK Modules Catalyst 3750G 161TD Switch 2 35 Installing a XENPAK Module 2 36 Removing a XENPAK Module 2 38 Connecting to the 10 100 and 10 100 1000 Ports 2 39 Connecting to an SFP Module 2 41 Connecting to a Fiber Optic SFP Module 2 41 Connecting to 1000BASE T SFP Modules 2 43 Connecting toa XENPAK Module 2 44 Where to Go Next 2 45 CHAPTER 3 Troubleshooting 3 1 Diagnosing Problems 3 1 Verify Switch POST Results 3 2 Monitor Switch LEDs 3 2 Verify Switch Connections 3 2 Bad or Damaged Cable 3 2 Ethernet and Fiber Cables 3 2 Link Status 3 3 PoE Connections 3 3 Transceiver Module Port Issues 3 3 Port and Interface Settings 3 4 Ping the End Device 3 4 Spanning Tree Loops 3 4 Monitor Switch Performance 3 5 Speed Duplex and Autonegotiation 3 5 Autonegotiation and NIC Cards 3 5 Cabling Distance 3 5 Clearing the Switch IP Address and Configuration 3 6 Replacing a Failed Stack Member 3 6 Finding the Switch Serial Number 3 7 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 EA E Contents appendix A Technical Specifications A 1 apPenDIx B Connector and Cabl
128. tement 370 The Cisco RPS 2300 has two output levels 52 V and 12 V with a total maximum output power of 2300 W The Cisco RPS 2300 is a redundant power system that provides seamless failover for up to six network devices for internal power supply failures It automatically senses if an internal power supply of a connected device fails and immediately supplies power to the failed device For more information on the Cisco RPS 2300 see the Cisco RPS 2300 Redundant Power System Hardware Installation Guide The Cisco RPS 675 has two output levels 48 V and 12 V with a total maximum output power of 675 W Use the supplied RPS connector cable to connect the RPS to the switch The RPS is a redundant power system that can support six external network devices and provides power to one failed device at a time It automatically senses when the internal power supply of a connected device fails and provides power to the failed device preventing loss of network traffic For more information on the Cisco RPS 675 see the Cisco RPS 675 Redundant Power System Hardware Installation Guide Catalyst 3750 Switch Hardware Installation Guide P1268 OL 6336 07 Chapter 1 Product Overview Console Port amp Management Options W You can connect the switch to a PC by means of the console port and the supplied RJ 45 to DB 9 female cable If you want to connect the switch console port to a terminal you need to provide an RJ 45 to DB 25 female
129. th for reliable communications See the Installation Guidelines section on page 2 5 for cable stipulations for SFP connections Use only Cisco SFP modules on the Catalyst 3750 switch Each SFP module has an internal serial EEPROM that is encoded with security information This encoding provides a way for Cisco to identify and validate that the SFP module meets the requirements for the switch For detailed instructions on installing removing and cabling the SFP module see your SFP module documentation Installing SFP Modules into SFP Module Slots A Figure 2 47 shows an SFP module that has a bale clasp latch Caution Step 1 Step 2 We strongly recommend that you do not install or remove fiber optic SFP modules with cables attached because of the potential damage to the cables the cable connector or the optical interfaces in the SFP module Disconnect all cables before removing or installing an SFP module Removing and installing an SFP module can shorten its useful life Do not remove and insert SFP modules more often than is absolutely necessary Figure 2 47 SFP Module with a Bale Clasp Latch To insert an SFP module into the SFP module slot follow these steps Attach an ESD preventive wrist strap to your wrist and to a bare metal surface on the chassis Find the send TX and receive RX markings that identify the top side of the SFP module amp Note On some SFP modules the send and receive TX and RX
130. the System LED turns amber amp Note POST failures are usually fatal Call Cisco Systems if your switch does not pass POST Powering Off the Switch After a successful POST disconnect the power cord from the switch Install the switch in a rack on a wall on a table or on a shelf as described in the Installing the Switch section on page 2 11 Planning the Stack If you plan to stack your switches read these sections e Planning Considerations page 2 8 e Powering Considerations page 2 8 e Cabling Considerations page 2 8 e Recommended Cabling Configurations page 2 10 Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 a 27 Chapter 2 Switch Installation W Planning the Stack Planning Considerations Before connecting the Catalyst 3750 switches in a stack observe these planning considerations e Size of the switch For switch dimensions see Appendix A Technical Specifications Some switches are deeper than the other switches Stacking switches of the same size together makes it easier to cable the switches e Length of cable Depending on the configurations that you have you might need cables of different sizes If you do not specify the length of the Stack Wise cable the 0 5 meter cable is supplied If you require the 1 meter cable or the 3 meter cable you can order it from your Cisco supplier For cable numbers see the StackWise Ports section on page 1 25 The Recommend
131. tion Guide OL 6336 07 a 23 Chapter 2 Switch Installation Preparing for Installation A Warning A When installing or replacing the unit the ground connection must always be made first and disconnected last Statement 1046 Warning A To prevent the system from overheating do not operate it in an area that exceeds the maximum recommended ambient temperature of 45 C Statement 1047 Warning A This warning symbol means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device Statement 1071 Warning A Voltages that present a shock hazard may exist on Power over Ethernet PoE circuits if interconnections are made using uninsulated exposed metal contacts conductors or terminals Avoid using such interconnection methods unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard A restricted access area can be accessed only through the use of a special tool lock and key or other means of security Statement 1072 Warning A No user service
132. tions e Connector Specifications section on page B 1 e Cable and Adapter Specifications section on page B 5 Connector Specifications These sections describe the connectors used with the Catalyst 3750 switches e 10 100 and 10 100 1000 Ports section on page B 2 e 100BASE FX Ports section on page B 2 e SFP Module Ports section on page B 3 e XENPAK Module Ports Catalyst 3750G 16TD Switch section on page B 4 e Console Port section on page B 5 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 E Bi Appendix B Connector and Cable Specifications E Connector Specifications 10 100 and 10 100 1000 Ports The 10 100 and 10 100 1000 Ethernet ports on Catalyst 3750 switches use standard RJ 45 connectors and Ethernet pinouts with internal crossovers Figure B 2 and Figure B 1 show the pinouts Figure B 1 10 100 Port Pinouts Pin Label 12345678 AN OA Ff ON RD RD TD NC NC TD NC NC i Lr H5318 Figure B 2 10 100 1000 Port Pinouts Pin Label 12345678 oN O oa A OOD TPO TPO TP1 TP2 TP2 TP1 TP3 TP3 60915 100BASE FX Ports The 100BASE FX ports use MT RJ connectors as shown in Figure B 3 The 100BASE FX ports use 50 125 or 62 5 125 micron multimode fiber optic cabling You can connect a 100BASE FX port to an SC or ST port on a target device by usin
133. tree loops 3 4 speed duplex and autonegotiation 3 5 switch performance 3 5 with LEDs 3 2 troubleshooting spanning tree loops 3 4 Ww wall mounting 2 27 wall mounting warning 2 2 2 29 warnings attaching the Cisco RPS 1 26 2 2 2 7 Class 1 laser 2 3 2 41 2 44 code compliance 2 4 connecting outside of building 2 3 connecting the power 2 2 DC power C 6 defined viii disposal of product 2 3 ground connection 2 3 C 2 installation 2 2 lightning activity 2 2 overheating 2 2 plug socket accessibility 2 3 PoE shock hazard 1 11 2 4 2 39 preventing bodily injury 2 3 2 11 removing jewelry 2 2 removing power from DC circuit C 4 restricted access area 2 3 C 1 RPS connector cover 2 2 2 28 servicing equipment 2 3 C 4 shielding Ethernet cables 2 2 C 1 stacking equipment 2 2 wall mounting 2 2 2 29 wireless LAN controller 1 10 x XENPAK module rubber plugs warning 2 44 XENPAK modules 1 2 1 13 B 4 caution 2 36 connecting to 2 44 to 2 45 installation 2 36 to 2 37 removal 2 38 XENPAK modules caution 2 36 Catalyst 3750 Switch Hardware Installation Guide OL 6336 07
134. ts that you use depend on whether you are attaching the brackets for a 19 inch a 23 inch a 24 inch rack or a ETSI rack Figure 2 23 shows the bracket options Figure 2 23 Rack Mounting Brackets 19 inch 24 inch 132869 e For 19 inch racks use part number 700 08209 XX and see Attaching Brackets for 19 Inch Racks and 19 Inch Telco Racks page 2 19 e For 23 inch racks use part number 700 21646 XX and see Attaching Brackets for 23 Inch Racks page 2 21 e For 24 inch racks use part number 700 12398 XX and see Attaching Brackets for 24 Inch Racks and 24 Inch Telco Racks page 2 22 e For ETSI racks use part number 700 19781XX and see Attaching Brackets for ETSI Racks page 2 23 Attaching Brackets for 19 Inch Racks and 19 Inch Telco Racks This section shows to attach brackets for 19 inch racks in Figure 2 24 through Figure 2 27 These illustrations show how to attach each type of bracket to one side of the switch Follow the same steps to attach the second bracket to the opposite side Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 a 219 Chapter 2 Switch Installation W installing the Switch Figure 2 24 Attaching Brackets for 19 Inch Racks Front Panel Forward 86560 1 Phillips flat head screws Figure 2 25 Attaching Brackets for 19 Inch Racks Rear Panel Forward 1 Phillips flat head screws Figure 2 26 Attaching Brackets for 19 Inch Racks 97171
135. tup Program To use the CLI enter commands at the Switch gt prompt through the console port by using a terminal program or through the network by using Telnet For configuration information see the switch software configuration guide or the switch command reference Table or Shelf Mounting Step 1 Step 2 Follow these steps to install the switch on a table or shelf Locate the adhesive strip with the rubber feet in the mounting kit envelope Attach the four rubber feet to the recessed areas on the bottom of the unit Place the switch on the table or shelf near an AC power source After the switch is mounted on the table you might need to perform these tasks to complete the installation run the setup program and access the switch e Optional Connect the switches in the stacks See the Connecting StackWise Cable to Stack Wise Ports section on page 2 30 e Power on the switch See the Verifying Switch Operation section on page 2 6 If the switches are stacked see the Planning Considerations section on page 2 8 for information on powering considerations e Connect to a 10 100 or 10 100 1000 port and run Express Setup See the Catalyst 3750 Switch Getting Started Guide for instructions e Connect to the front panel ports See the Connecting to the 10 100 and 10 100 1000 Ports section on page 2 39 and the Connecting to an SFP Module section on page 2 41 to complete the installation For config
136. ule port on the switch regardless of the type of device on the other end of the connection The auto MDIX feature is enabled by default on switches running Cisco IOS Release 12 2 18 SE or later For releases between Cisco IOS Release 12 1 14 EA1 and 12 2 18 SE the auto MDIX feature is disabled by default For configuration information for this feature see the switch software configuration guide or the switch command reference Follow these steps to connect to IOBASE T 1OOBASE TX or 1OOOBASE T devices Caution Step 1 PoE faults are caused when noncompliant cabling or powered devices are connected to a PoE port Only standard compliant cabling can be used to connect Cisco pre standard IP Phones and wireless access points or IEEE 802 3af compliant devices to PoE ports A cable or device that causes a PoE fault must be removed from the network When you connect the switch to workstations servers routers and Cisco IP Phones connect a straight through cable to an RJ 45 connector on the front panel See Figure 2 55 When you connect the switch to other switches or to repeaters use a crossover cable See the Cable and Adapter Specifications section on page B 5 for cable pinout descriptions When you connect a switch to 1OOOBASE T compatible devices be sure to use a twisted four pair Category 5 or later cable You can connect the Catalyst 3750 switch to a Cisco IP Phone through a straight through twisted four pair Categor
137. uration guide on Cisco com and the documentation that came with your SNMP application for more information Network Configurations See the switch software configuration guide on Cisco com for network configuration concepts and examples of using the switch to create dedicated network segments and interconnecting the segments through Gigabit Ethernet connections Catalyst 3750 Switch Hardware Installation Guide P1238 i OL 6336 07 CHAPTER 2 Switch Installation This chapter describes how to start your switch and how to interpret the power on self test POST that ensures proper operation It describes the planning and cabling considerations to keep in mind while planning your stack It describes how to install the switch and make connections to the switch Read the topics and perform the procedures in this order e Preparing for Installation page 2 1 e Verifying Switch Operation page 2 6 e Planning the Stack page 2 7 e Installing the Switch page 2 11 e Connecting StackWise Cable to StackWise Ports page 2 30 e Installing and Removing SFP Modules page 2 33 e Installing and Removing XENPAK Modules Catalyst 3750G 16TD Switch page 2 35 e Connecting to the 10 100 and 10 100 1000 Ports page 2 39 e Connecting to an SFP Module page 2 41 e Connecting toa XENPAK Module page 2 44 e Where to Go Next page 2 45 Preparing for Installation This section covers these topics e Warnings page 2 2 e Install
138. uration instructions about using the CLI setup program go to Appendix D Configuring the Switch with the CLI Based Setup Program To use the CLI enter commands at the Switch gt prompt through the console port by using a terminal emulation program or through the network by using Telnet For configuration information see the switch software configuration guide or the switch command reference Connecting StackWise Cable to StackWise Ports Step 1 Step 2 Follow these steps to connect the StackWise cable to the Stack Wise ports Remove the dust covers from the Stack Wise cables and Stack Wise ports and store them for future use Insert one end of the StackWise cable into the Stack Wise port on the back of the switch See Figure 2 44 amp Note Always use a Cisco approved StackWise cable to connect the switches Catalyst 3750 Switch Hardware Installation Guide EN OL 6336 07 Chapter2 Switch Installation Connecting StackWise Cable to StackWise Ports W Figure 2 44 Inserting the StackWise Cable in a StackWise Port 132362 Step3 Use the window in the Stack Wise cable to align the connector correctly Secure the screws tightly Step4 Insert the other end of the cable into the connector of the other switch and secure the screws tightly A Caution Removing and installing the StackWise cable can shorten its useful life Do not remove and insert the cable more often than is absolutely necessary
139. will have many packet errors or the port constantly loses and regains link In these situations e Change the copper or fiber optic cable with a known good cable if necessary e Look for broken or missing pins on cable connectors e Rule out any insufficient patch panel connections or media convertors between the source and the destination If possible bypass the patch panel or eliminate faulty media convertors such as fiber optic to copper convertors e Try using the cable in another port or interface to see if the problem also exists there Ethernet and Fiber Cables Make sure that you have the correct cable type for the connection e For Ethernet use Category 3 copper cable for 10 Mb s unshielded twisted pair UTP connections Use either Category 5 Category 5e or Category 6 UTP for 10 100 or 10 100 1000 Mb s connections e For fiber optic connectors verify that you have the correct cable for the distance and port type Make sure that the ports on the connected device match and that they use the same type of encoding optical frequency and fiber type For more information about cabling see Appendix A Connector and Cable Specifications Catalyst 3750 Switch Hardware Installation Guide 32 E OL 6336 07 Chapter3 Troubleshooting Diagnosing Problems W e For copper connections determine if a crossover cable was used when a straight through cable was required or the reverse Enable auto MDIX on the switch or r
140. y 5 or later cable The rear panel of the Cisco IP Phone might have more than one RJ 45 connector Use the LAN to phone connector to connect the Cisco IP phone to the switch See the Cisco IP Phone documentation for more information about connecting devices to it amp Note Many legacy powered devices including older Cisco IP phones and access points that do not fully support IEEE 802 3af might not support PoE when connected to the switches by a crossover cable Catalyst 3750 Switch Hardware Installation Guide 240 i OL 6336 07 Chapter2 Switch Installation Step 2 Step 3 Step 4 Connecting to an SFP Module W Connect the other end of the cable to an RJ 45 connector on the other device The port LED turns on when both the switch and the connected device have established link The port LED is amber while Spanning Tree Protocol STP discovers the topology and searches for loops This process takes about 30 seconds and then the port LED turns green If the port LED does not turn on the device at the other end might not be turned on or there might be a cable problem or a problem with the adapter installed in the attached device See Chapter 3 Troubleshooting for solutions to cabling problems Reconfigure and reboot the connected device if necessary Repeat Steps 1 through 3 to connect each device Figure 2 55 Connecting to an Ethernet Port bree P sys rs 86818 Connecti
141. you can also connect the Cisco RPS 2300 or the Cisco RPS 675 to provide backup power should the switch internal power supply fail amp Note The Catalyst 3750 switch and the redundant power systems should be connected to the same AC power source Catalyst 3750 Switch Hardware Installation Guide I OL 6336 07 g i25 Chapter1 Product Overview E Rear Panel Description Internal Power Supply Connector The internal power supply is an autoranging unit that supports input voltages between 100 and 240 VAC Use the supplied AC power cord to connect the AC power connector to an AC power outlet DC Power Connector A The Catalyst 3750G 12S SD has an internal DC power converter It has dual feeds A and B that are diode OR ed into a single power block For installation instructions see Appendix C Connecting to DC Power Caution You must connect the Catalyst 3750G 12S SD switch only to a DC input power source that has an input supply voltage from 36 to 72 VDC If the supply voltage is not in this range the switch might not operate properly or might be damaged Cisco RPS Connector A The Cisco RPS 2300 model PWR RPS2300 and the Cisco RPS 675 model PWR675 AC RPS N1 support the Catalyst 3750 family of switches except the Catalyst 3750G 12S SD switch Warning Cisco RPS 2300 Cisco RPS 675 Attach only the following Cisco RPS model to the RPS receptacle PWR RPS2300 PWR675 AC RPS N1 Sta
142. ywood mounting backboard Mount the switch with the front panel facing up as shown in Figure 2 43 A Warning To comply with safety regulations mount the switches on a wall with the front panel facing up Statement 266 Figure 2 43 Mounting the Switch on a Wall 1 User supplied screws After the switch is mounted on the wall you might need to perform these tasks to complete the installation run the setup program and access the switch e Optional Connect the switches in the stacks See the Connecting StackWise Cable to Stack Wise Ports section on page 2 30 e Power on the switch See the Verifying Switch Operation section on page 2 6 If the switches are stacked see the Planning Considerations section on page 2 8 for information on powering considerations e Connect to a 10 100 or 10 100 1000 port and run Express Setup See the Catalyst 3750 Switch Getting Started Guide for instructions e Connect to the front panel ports See the Connecting to the 10 100 and 10 100 1000 Ports section on page 2 39 and the Connecting to an SFP Module section on page 2 41 to complete the installation Catalyst 3750 Switch Hardware Installation Guide OL 6336 07 ms 229 Chapter 2 Switch Installation HI Connecting StackWise Cable to StackWise Ports For configuration instructions about using the CLI setup program go to Appendix D Configuring the Switch with the CLI Based Se

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