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Cabletron Systems SEH-32 User's Manual

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1. SPANISH cable principal dela red el ctrica utilizado con este equipo debe tener 2 conductores y 1 toma de tierra con un m nimo de 0 75 mm2 cada uno y necesita tener un aparato de acoplamiento standard EC en un extremo un enchufe para el cable principal de la red el ctrica en el otro extremo lo cual sea adecuado para el uso y applicaci n del producto y lo cual sea aprobado para uso en el pais de applicaci n FRENCH Le cordon d alimentation reliant cet appareil au secteur doit obligatoirement avoir deux fils conducteurs de 0 75 mm2 minimum et un fil deterre It doit galement tre qui p du c t appareil d une fiche agr e IEC et du c te secteur d une prise adapt e l usage du produit et aux normes du pays ou l appareil est utilis
2. 21 CABLE 5 40 2 1 2 1 1 HubSTACK Interconnect Cable Requirements 2 1 2 1 2 and STP Cable Specifications for the Network Ports EPIM T Module seen 2 2 213 Multimode Fiber Optic Cable Specifications for the EPIM F1 and EPIM F2 Modules 2 4 2 1 4 Single Mode Fiber Optic Cable Specifications for the 6 2 5 2 15 Thin net Network Requirements for the M od ule 2 6 2 1 6 AUI Cable Requirements for the EPIM A and EPIM X Mod les dete 2 7 22 NETWORK PORT SPECIFICATIONS 2 7 2 22 1 SEH 22and SEH 24 Network Port Specifications 2 8 2 2 2 SEH 32 and SEH 34 Network Port Specifications 2 8 2 3 5 5 2 10 22212 pente Pp Pee ag 2 10 2 3 2 1 1 2 2 11 2 313 EPIMSE3 iactis meet tene ie ma Y ect d 2 12 234 SE PIM eer tr taedet rc ra e cutie cat 2 14 2 35 and EPIM X AUI 2 15 24 TRANSCEIVER 2 16 2 5 OPERATING 2 16 REQUIRE MEN
3. CONNECTING TO THE NETWORK ON Position Toward Back of EPIM OFF Position Toward Front of EPIM Figure 4 7 The EPIM X 42 FINISHING THE INSTALLATION The SEH is now ready for operation Before placing the network into service test the installation thoroughly making sure that you can address all stations and that the SEH and all stations are indicating normal operation Ensurethat the networking software is configured properly to match the installed network If you encounter errors abnormal operation proceed to Chapter 5 Troubleshooting Page 4 12 TROUBLESHOOTING CHAPTER 5 TROUBLESHOOTING This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems 5 1 INSTALLATION CHECK OUT After you connect the SEH to the network verify that packets pass between all Ethernet devices connected to the SEH and any other devices connected to the network If you encounter difficulty with any of the attached devices check the link as follows 1 Check that the LNK LED if applicable for the port is on If the LED is not on a Check that the LOBASE T device at the other end of thetwisted pair segment is powered up b Verify that the connector on the twisted pair segment has the proper pinouts Refer to Chapter 2 for the pin assignments for twisted pair connectors For EPIM F1 EPIM F 2 EPIM F3 check that the TX and RX fibers are properly connected Check the cable
4. oMGMT RcvOOOO00000000 LNK 90000000000 12 11 10 98765432 LED NAME LED COLOR DEFINITION PWR No Power Power CUN Solid Power MGMT Green Flashing SEH Managed by an Intelligent Hub Management Off SEH Not Managed CLN Collision Collision RCV Yellow Flashing SEH is Receiving Data Receive Off No Activity LNK Green Link Established Link Off No Link Figure 5 1 LANVIEW LEDs PWR Green When this LED is on it indicates that the SEH is receiving power If this LED is off it indicates a loss of input power Check the input power source circuit breaker fuse etc If the proper source power is present the problem could be with the SEH MGMT Green Flashing This LED flashes when an intelligent hub manages the SEH If this LED does not flash an intelligent hub is not managing the SEH If you connect an intelligent hub tothe SEH and the LED does not flash inspect the HubSTACK Interconnect cables for proper connections Page 5 3 TROUBLESHOOTING CLN Red This LED indicates that a collision has occurred on one of the ports RCV Yellow Flashing When this LED flashes it indicates that the SEH is receiving data packets from the associated port segment Each SEH port has a corresponding RCV LED e Network Ports RCV LEDs 1 24 e EPIM 1 RCVLEDE1 e EPIM 2 RCVLEDE2 LNK Green When aLNK LED is on it indicates an established link between the associated twisted pair segment and the 1OBASE T
5. s 5 was SEH SEHI 24 10BASE T HUB LANVIEW S B FL wa SEH INTERCONNECT Figure 3 1 Stacking the SEH To stack an SEH toan SEHI refer to Figure 3 1 and perform the following steps 1 Attach the SEHI HubSTACK Interconnect cable to the bus port labeled OUT on the rear panel of the SEHI Attach theother end of SEHI HubSTACK Interconnect cabletothe bus port labeled IN on therear panel of the SEH next in thestack Page 3 3 INSTALLATION If you disconnect one end of a HubSTACK Interconnect cable and leave the other end attached to the hub ensure that you disconnect the cable from the OUT port as shown in Figure 3 2 This ensures that the HubSTACK Interconnect cable is terminated properly Disconnect SEH and SEHI Interconnect Cables at the OUT Port SEH 24 10BASE T HUB NVIEW AY ss B NY SEHI 24 10BASE T HUB with LANVIEW amp a S ua SEH INTERCONNECT Figure 3 2 Disconnecting the HubSTACK Interconnect Cable 3 2 2 Attaching the Strain Relief Bracket Attach the strain relief bracket to the front of the SEH as follows 1 Locatethestrain relief bracket and four 8 32 x 3 8 screws from the SEH ACCY KIT package Warning Useof longer screws may cause damage to the unit or dectrical shock 2
6. A38 A39 A40 Pin A33 A34 A35 A36 Violet Green RX Green Violet RX Violet Brown TX Brown Violet TX Violet BBlue RX BlueViolet RX Violet Orange TX Orange Violet TX Yellow Brown RX4 Brown YellowRX Yellow Gray TX Gray Yellow TX Yellow OrangeRX 4 Orange YellowRX Yellow Green TX Green Yellow TX Page A 2 TWISTED PAIR WIRING TABLES TableA 1 Twisted Pair Wiring from an SEH 32 34 to a Punch Down Block Continued From Into and Out of Into Punch Down SEH 32 34 50 Pin Feeder Cable Block Port 8 20 Pin Pin 40 Black Gray RX A29 Black Gray RX RX 15 Gray Black RX A30 Gray Black RX 41 Yellow Blue TX A31 Yelow Blue TX TX 16 Blue Yellov TX A32 Blue Yellow TX Port 7 19 Pin Pin 38 Black Green RX A25 Black Green RX RX 13 Green Black RX A26 Green Black RX 39 Black Brown TX A27 Black Brown TX TX 14 Brown Black TX A28 Brown Black TX Port 6 18 Pin Pin 36 Black Blue RX A21 Black Blue RX RX 11 Blue Black RX A22 Blue Black RX 37 Black Orange TX A23 Black OrangeTX TX 12 Orange Black TX A24 Orange Black TX Port 5 17 Pin Pin Pin 34 Red Brown RX A17 Red Browmn RX 9 Brown Red RX A18 Brown Red RX 35 Red Gray TX A19 Red Gray TX 10 Gray Red TX A20 Gray Red TX Page A 3 TWISTED PAIR WIRING TABLES From SEH 32 34 Port 4 16 Pin RX 32 RX 7 TX 33 TX 8 Port 3 15 Pin RX 30 RX 5 31 TX 6 Port 2 14 Pin RX 2
7. A45 RX A46 RX A47 TX 48 TX 41 RX A42 RX A43 TX 44 A1 RX 2 RX 4 4Pair istributi Cable wis 4Pair Twisted istributi Cable Wall Plate 10BASE T If Required Ethernet Device PIN 1TX PIN 1TX ir PIN 2TX t3 PIN 2TX ro PIN 3RX PIN 3RX PIN 6RX PIN 6RX PIN 1TX PIN 1TX PIN 2 TX 13 PIN 2 TX D PIN3RX 9 PIN3RX PIN 6 RX PIN 6 RX PIN 1TX PIN 1TX PIN 2TX 3 PIN 2TX PIN3RX 0 9 PIN 3RX PIN 6 RX PIN 6RX 4 Pair Twist istributi Cabl TWISTED PAIR WIRING TABLES TNO ONO 1 Punch Down Block Page A 9 POWER SUPPLY CORD The mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0 75 mm square conductors and must incorporate a standard appliance coupler on one end and a mains plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of application GERMAN Die Netzleitung die mit diesem Geraet benuetzt wird soll einen zwei Leiter mit Erdleiter haben wobei die Leiter mindestens 0 75 mm sind mit einer normalen I Geraetesteckdose an einem Ende und einem Geraetestecker am anderen Ende versehen sind der fuer den Gebrauch und die Anwendung des Geraetes geeignet und der zum Benuetzen im Lande der Anwendung anerkannt ist
8. SEH 34 10 5 Stackable Hub User s Guide This manual explains installation instructions and provides reference information for the SEH 22 24 32 and 34 Note Theterm SEH StackableE thernet Hub is used throughout this manual when describing features and functions that arecommon tothe SEH 22 24 32 and 34 11 USING THIS MANUAL Read through this manual completely to familiarize yourself with its content and to gain an understanding of the features and capabilities of the SEH A general working knowledge of Ethernet and IEEE 802 3 type data communications networks and their physical layer components will be helpful when installing the SEH Chapter 1 Introduction outlines the contents of this manual briefly describes SEH features and concludes with a list of related manuals Chapter 2 Installation Requirements Specifications describes installation requirements network guidelines and SEH operating specifications Chapter 3 Installation contains instructions for installing your SEH as a stackable or stand alone hub Chapter 4 Connecting to the Network explains how to connect the SEH tothe network using the various media types Chapter 5 Troubleshooting describes how to use the LANVIEW LEDs to troubleshoot network problems Appendix A Twisted Pair Wiring Tables contains wiring pinouts for Punch Down Block applications Page 1 1 INTRODUCTION 12 GETTING HELP If you need additional support related to the
9. contact Cabletron Systems Technical Support Page 4 2 CONNECTING TO THE NETWORK 4 1 2 Connecting Network Ports SEH 32 and SEH 34 The SEH 32 has a 50 pin Champ connector while the SEH 34 has two 50 pin Champ connectors This configuration of the SEH allows you to run 50 pin feeder cable from the SEH toa punch down block Each Champ connector supports 12 LOBASE T twisted pair segments Note Refer to Appendix A for information about wiring theSEH toa punch down block To connect the SEH into existing twisted pair wiring system 1 Connect a 50 pin feeder cable to the Champ connector on the SEH as shown in Figure 4 2 Figure 4 2 SEH 32 34 Network Ports 2 Attach the feeder cable to the punch down block or patch panel In most cases you can connect the feeder cable directly toa Champ connector located on the punch down block If not you must wire the feeder cable to the punch down block using the punch down information in Appendix A 3 Atthedevice end of a segment attach the segment to 10 5 compliant Ethernet device Page 4 3 CONNECTING TO THE NETWORK 4 Check that thelink LED on the 10 5 Ethernet device and the applicable LNK LED on the SEH areon If the LEDs are not on perform each of the following steps until the LEDs are on a Check that the LOBASE T device and the SEH have power b Verify the cabling between the SEH and the 10 5 device C Check the cable for continui
10. 1 RX 5 NC 2 RX 6 TX 3 TX 7 NC 4 NC 8 NC Position not crossed over 1 TX 5 NC 2 TX 6 RX 3 RX 7 NC 4 NC 8 NC Figure 2 3 EPIM T Pinouts Page 2 10 INSTALLATION REQUIREMENTS SPECIFICATIONS 2 3 2 1 2 The EPIM F1 and EPIM F2 shown in Figure 2 4 support Multimode Fiber Optic cabling Each EPIM has an internal Cabletron Systems FOT F Fiber Optic Transceiver The EPIM F1 is equipped with SMA Connectors and the EPIM F 2 is equipped with ST Connectors Specifications for the EPI Ms are listed below TX TX LNK 894 LNK o 2 1 2 Figure 2 4 EPIM F1 and EPIM F2 Parameter Typical Worst Worst Case Typical Value Case Budget Budget Receive Sensitivity 30 5 dBm 28 0 dBm Peak Input Power 7 6 8 2 dBm Transmitter Power 50 125 um fiber 13 0 dBm 15 0dBm 13 0 dB 17 5 dB 62 5 125 um fiber 10 0 dBm 12 0dBm 16 0 dB 20 5 dB 100 140 uum fiber 7 0dBm 9 0dBm 19 0 dB 23 5 dB Error Rate Better than 10 10 Note Thetransmitter power leves receive sensitivity levels listed are Peak Power Leds after optical overshoot A Peak Power M amp er must be used to correctly compare the values given above to those measured on any particular port If Power Leds arebeng measured with an AverageP ower M eer then dBm must beadded to the measurement to correctl y compare those measured values to the v
11. 1 4 Connecting a Fiber Optic Link Segment to an EPIM F1 EPIM F 2 or EPIM F3 When connecting a fiber optic link segment to EPIM F 1 F2 or keep the following in mind If you are connecting a fiber optic link segment with SMA 906 connectors to an EPIM F 1 with SMA ports ensure that half alignment sleeves are in place on each connector A full alignment sleeve will damage the receive port SMA 905 connectors do not need alignment sleeves If you are connecting a fiber optic link segment with ST connectors to an EPIM F2 F 3 with ST ports keep in mind that ST connectors attach to ST ports much like BNC connectors attach to BNC ports Insert the connector into the port with the alignment key on the connector inserted intothealignment slot on the port The connector is then turned to lock it down Page 4 5 CONNECTING TO THE NETWORK The physical communication link consists of two strands of fiber opticcabling theTransmit TX and the Receive RX The Transmit strand from the applicable port on the module will be connected to the Receive port of a fiber optic Ethernet device at the other end of the segment For example TX of the applicable port on the module will goto RX of the other fiber optic device TheReceive strand of the applicable port on the module will be connected to the Transmit port of the fiber optic Ethernet device For example RX of the applicable port on the module will goto TX of the other fiber optic d
12. 2 4 1 4 e EPIM C 4 1 5 e EPIM A 4 1 6 e EPIM X 4 1 7 Prior to connecting the network cabling check the connectors for the proper pinouts as shown in Chapter 2 4 1 1 Connecting Network Ports SEH 22 and SEH 24 You attach unshielded twisted pair segments to the RJ 45 Network Ports on the front panel of the SEH Each twisted pair port on the SEH incorporates a Polarity Detection and Correction feature The Polarity Detection and Correction feature allows the SEH to pass data regardless of the polarity of the twisted pair segment s receive link Operating in this condition is not recommended and if this condition is discovered the segment should be removed from the network and wired correctly by a technician Page 4 1 CONNECTING TO THE NETWORK To connect twisted pair segments to the SEH 1 Insert the RJ 45 connector from each twisted pair segment into the desired network port on the SEH See Figure 4 1 Figure 4 1 SEH 22 24 Network Ports 2 Check that the applicable LNK LED for the port is on If the LED is not on perform each of the following steps until it is a Check that the 10 5 device at the other end of thetwisted pair segment is powered up b Verify that theRJ 45 connector on the twisted pair segment has the proper pinouts Check the cable for continuity C Check that the twisted pair connection meets dB loss and cable specifications outlined Chapter 2 If a link still has not been established
13. Cabletron Systems SEH or if you have any questions comments or Suggestions concerning this manual contact Cabletron Systems Technical Support By 603 332 9400 Monday Friday 8am 89m EST CompuServe GO CTRON from any prompt By Internet mail support ctron com 13 SEH OVERVIEW The 10BASE T SEH is a non intelligent repeating hub that provides front panel ports for network connections and rear panel HubSTACK Interconnect Bus ports for stackable connections 2 HubSTACK 10BASE T HUB with LANVIEW 4 SEH 2 19925555222222 NP NN 24232221 2019181716151413 2 2X 2X 2X 9X 18 16X 15X WX 13X ele 12322123228 TEX NX OX OX BX eX SX AX OX KX IK EPIM 1 SEH 24 10BASE T HUB with LANVIEW T am gt THE 2 HubSTACK 10BASE T HUB wird LANVIEW SEH 34 LNK n 242322 21 2019 18 17 16151413 2 24X 13X Te 5900000000000 0 LNK 000000000000 12X 1X 2519876543211 NN SEH 34 10BASE T HUB LANVIEW S A gt q LTN D oHm OUT lt SEH INTERCONNE
14. an 850 nm wavelength This test verifies that the signal loss in a cable is within an acceptable level Table 2 1 shows the attenuation for each Multimode cable type Fiber Optic Budget and Propagation Delay When determining the maxi mum fiber optic cable length the fiber optic budget delay and total network propagation should be calculated and taken into consideration before fiber optic cable runs are incorporated in any network design Fiber optic budget is the combination of the optical loss due tothe fiber optic cable in line splices and fiber optic connectors Propagation delay is the amount of time it takes data to travel from the sending device to the receiving device Total propagation delay allowed for the entire network is 25 6 usec if the total propagation delay between any two nodes on the network exceeds 25 6 usec then bridges should be used Page 2 4 INSTALLATION REQUIREMENTS SPECIFICATIONS 2 1 4 Single Mode Fiber Optic Cable Specifications for the EPIM F3 Module Table 2 2 shows Single Mode Fiber Optic Cable specifications for the EPIM F3 Table 2 2 Single Mode Fiber Optic Cable Specifications Cable Type Attenuation Maximum Cable Length 8 125 12 125 um 10 0 dB or less Themaximum allowable fiber optic cable length is 5 km 3 1 miles with bridges at each segment end H owev er IEEE 802 3 FOIRL specdifi cations specify a maximum of 1 km 1093 6 yards Attenuation You
15. device at the other end of the segment LNK LEDs will remain on as long as a link is maintained Each SEH Network Port ports 1 24 has a corresponding LNK LED Page 5 4 TWISTED PAIR WIRING TABLES APPENDIXA TWISTED PAIR WIRING TABLES This appendix contains twisted pair wiring tables which will assist you if you are using a Punch Down block see Figure 1 to wire your twisted pair segments The following tables are included in this appendix TableA 1 Twisted Pair Wiring from an SEH toa Punch Down Block e TableA 2 Twisted Pair Wiring from a Punch Down Block toa 10 5 Device e TableA 3 Twisted Pair Wiring Summary Page A 1 TWISTED PAIR WIRING TABLES Note Pins 25 and 50 on Champ connector are not used From SEH 32 34 Port 12 24 Pin 48 RX 23 49 TX 24 Port 11 23 Pin 46 RX 21 47 TX 22 Port 10 22 RX TX Port 9 21 TableA 1 Twisted Pair Wiring Into and Out of 50 Pin Feeder Cable Pin 48 Violet Green RX 23 Green Violet RX 49 Violet Brown TX 24 Brown Violet TX Pin 46 Violet Blue RX 21 Blue Violet 47 Violet Orange TX 22 Orange Violet TX Pin 44 Yellow Brown RX 19 Brown Yellow RX 45 Yellow Gray TX 20 Gray Yellov TX Pin 42 Yellow OrangeRX 17 Orange YellowRX 43 Yellow Green TX 18 Green Yellow TX from an SEH 32 34 to a Punch Down Block Into Punch Down Block Pin A45 A46 A47 A48 Pin A41 A42 A43 A44 Pin A37
16. efficiency is 6596 under all conditions of lineat full load The minimum and maximum load current from each output is shown below Output Min Load Max Load Max Power 5 Volts 0 50 Amps 3 0 Amps 15 Watts 12 Volts 0 05 Amps 1 0 Amps 12 Watts Page 2 17 INSTALLATION REQUIRE MENTS SPECIFICATIONS ENVIRONMENTAL REQUIREMENTS Operating Temperature 5 to 50 C Non operating Temperature 30 to 90 C Operating Humidity 5 to 95 non condensing SAFETY This unit meets the safety requirements of UL 1950 CSA C22 2 No 950 and EN 60950 the requirements of FCC Class and EN 55022 Class A and the EMC requirements of EN 50082 1 Warning It is the responsibility of the person who sd ls the system to which the SEH will bea part to ensurethat the total system meets allowed limits of conducted and radiated emissions PHYSICAL Dimensions 2 8H x 17 0W x 8 0D inches 7 2 x 43 6 x 20 5 cm Weight 4 9 165 Predicted MTBF SEH 22 32 753 629 hours SEH 24 34 847 921 hours Page 2 18 INSTALLATION CHAPTER 3 INSTALLATION This chapter outlines the procedure for installing your SEH and connecting it to a network You can install the SEH as a stackable or stand alone device Ensure that your network meets the guidelines and requirements outlined in Chapter 2 Installation Requirements Specifications before installing the SEH 3 1 UNPACKING THE SEH Unpack the SEH as follows 1 Remove the shipping material
17. for continuity A variety of tools are available for this test depending on the media you are using d Check that thetwisted pair segments meet cable specifications for dB loss described in Chapter 2 Page 5 1 TROUBLESHOOTING 2 Ifthe remote station is ready and the LNK LED is on but no data passes through the port one of two conditions may exist Network management has disabled the port e Theport is segmented either because the collision detector was on for more than 110 usec or the SEH detected more than 32 consecutive collisions on the attached segment The affected port remains segmented until a good packet is transmitted received without collisions Ifthe LNK LED is still not on contact Cabletron Systems Technical Support 5 2 USING LANVIEW The SEH incorporates the Cabletron Systems LANVIEW Status Monitoring and Diagnostics System LANVIEW LEDs can help diagnose problems such as a power failure or a cablefault The SEH indudes thefollowing LANVIEW LEDs e PWR for power status e MGMT for management status e RCV Receive LNK Link and CLN Collision for Ethernet status Figure 5 1 provides a quick reference chart of LED locations and definitions This chapter also includes a detailed description of each LED Page 5 2 TROUBLESHOOTING HubSTACK 10BASE T HUB LANVIEW SEH 24 LNK 24 23 22 21 20 19 18 17 16 15 14 13 2 OPWR
18. must test the fiber optic cable with a fiber optic attenuation test set adjusted for an 1300 nm wavelength This test verifies that the signal loss in a cableis 10 0 dB or less for any given single mode fiber optic link Fiber Optic Budget and Propagation Delay Fiber optic budget is the combination of the optical loss due to the fiber optic cable in line splices and fiber optic connectors When determining the maximum fiber optic cable length the fiber optic budget total loss of 10 0 dB or less between stations and total network propagation delay should be calculated and considered before fiber optic cable runs are incorporated in any network design Propagation delay is the amount of time it takes data to travel from the sending device to the receiving device Total propagation delay allowed for the entire network is 25 6 usec if the total propagation delay between any two nodes on the network exceeds 25 6 usec then bridges should be used Page 2 5 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 1 5 Thin net Network Requirements for the Module When you connect a thin net segment to the SEH via an EPIM C your network must meet the following requirements Cable Type 50 ohm RG 58A U type coaxial cable must be used when making up a thin net cable segment Length The thin net segment must be no longer than 185 meters Terminators 50 ohm terminator must be connected to the far end of each thin net segment Con
19. trademark of Xerox Corporation Windows is a registered trademark of Microsoft Corporation Printed On Recyd ed Paper NOTICE FCC NOTICE This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation NOTE 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 uses generates and can radiate radio frequency energy and if not installed in accordance with the operator s manual may cause harmful interference to radio communications Operation of this equipment a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment DOC NOTICE This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio nterference Regulations of the Canadian Departmen
20. 2 5 Free Standing Installation For a free standing shelf or tabletop installation locate the SEH within 7 feet of its power source and with an unrestricted free surface area 21 inches wide 18 inches deep and 6 inches high as shown in Figure 3 7 Figure 3 7 Shelf or Tabletop Installation Page 3 7 INSTALLATION 3 3 CONNECTING THE SEH TO THE POWER SOURCE Note TheSEH has a universal power supply This allows you to connect the SEH to power sources from 90 Vacto 264 Vac 47 63 Hz To connect the SEH to the power source Plug the power cord into the back panel of the SEH 2 Plugthe other end of the power cord into a grounded wall outlet 3 Verify that the PWR LED is on this indicates that the SEH is receiving power Page 3 8 CONNECTING TO THE NETWORK CHAPTER 4 CONNECTING TO THE NETWORK This chapter outlines the procedure for connecting your SEH toa network Ensure that your network meets the guidelines and requirements outlined in Chapter 2 Installation Requirements Specifications before installing the SEH 4 1 CONNECTING THE SEH TO THE NETWORK The procedure for connecting network segments to the SEH varies depending on the media and ports being connected Refer to the following list and perform the procedure described in the subsections that apply to your SEH Network Ports SEH 22 24 4 1 1 Network Ports SEH 32 34 4 1 2 e EPIM T 4 1 3 e EPIM F1
21. 8 CONNECTING TO THE NETWORK Note Y ou must termi nate each segment attached to thetee connector If you do not attach a segment to one of the female connections on the tee connector then a terminator must be placed on that connection c Attach another thin coax segment or a terminator to the other female connector on the tee connector When internal termination switch is set to off 0 Connect BNC tee connector to port Attach a terminator or terminated thin net segment to one female connector of tee connector Connect a terminated thin net segment to other female connector of tee connector Attach thin net segment directly to BNC connector when internal termination switch is set to on e Figure 4 5 EPIM C Page 4 9 CONNECTING TO THE NETWORK 4 1 6 Connecting an AUI Cable to EPIM A Caution Ensurethat theexternal transcd ver to which theSEH will be connected does not havethe signal quality error SQE or heartbeat test function enabled The SEH will not operate if thetransce ver has theSQE test function enabled and thenetwork will be unusable Refer to the applicabletransce ver manual To connect to an external network segment 1 Attach an external transceiver tothe network segment that will be connected to the AUI port Refer to the applicable transceiver manual 2 Attach an AUI cable no longer than 50 meters in length tothe transceiver connected to the network i
22. 8 RX 3 TX 29 TX 4 Port 1 13 Pin RX 26 RX 1 TX 27 TX 2 TableA 1 Twisted Pair Wiring from an SEH 32 34 to a Punch Down Block Continued Into and Out of 50 Pin Feeder Cable Pin 32 Red Orange 7 Orange Red 33 Red Green 8 Green Red Pin 30 White Gray 5 GrayMhite 31 Red Blue 6 Blue Red Pin 28 White Green 3 Green White RX RX TX TX RX RX TX RX RX 29 White Brown TX 4 Brown White TX Pin 26 White Blue 1 Blue White RX RX 27 White OrangeTX 2 Orange WhiteTX Into Punch Down Block Pin A13 A14 A15 A16 Pin A9 A10 A11 A12 Pin A5 7 8 Pin Al A2 A3 A4 Red Orange Orange Red Red Green Green Red White Gray GrayWhite Red Blue Blue Red White Green RX RX TX TX RX RX TX RX Green White RX White Brown TX Brown White TX White Blue Blue White RX RX White OrangeT X Orange WhiteT X Page A 4 TWISTED PAIR WIRING TABLES Table 2 Twisted Pair Wiring from a Punch Down Block toa 10Base T Device From Punch Down Block Port 12 24 B45 Violet Green B46 Green Violet B47 Violet Brown B48 Brown Violet Port 11 23 B41 Violet Blue B42 BlueViolet B43 Violet Orange B44 Orange Violet Port 10 22 B37 Yellow Brown B38 Brown Yellow B39 Yellow Gray B40 Gray Yellow Port 9 21 B33 Yellow Orange B34 Orange Yellow B35 Yellow Green B36 Green Yellow RX RX TX TX
23. Attach the fiber labeled 2 to the receive port Page 4 7 CONNECTING TO THE NETWORK 6 Check that the EPIM s LNK LED ison If the LED is not on perform the following steps until it is a Check that the power is turned on for the device at the other end of the link b Verify proper cross over of fiber strands between the applicable port on the module and the fiber optic device at the other end of the fiber optic link segment Verify that the fiber connection meets the dB loss specifications outlined in Chapter 2 If a link still has not been established contact Cabletron Systems Technical Support 4 1 5 Connecting a Thin Net Segment to an EPIM C To connect a thin net segment to refer to Figure 4 5 and perform the following steps 1 Set theInternal Termination Switch to the right of the port and labeled TERM to e Theon position if thethin net segment connected directly to the port will be internally terminated at the port e The off position o if the thin net segment will not be terminated at the port or externally terminated 2 Ifthe Internal Termination switch is in the On position connect the thin net segment directly to the BNC port as shown in Figure 4 5 3 Ifthe Internal Termination switch is the Off position a Attach a BNC tee connector to the BNC port the module b Attach the thin net segment to one of the female connectors on the tee connector Page 4
24. Attach thestrain relief bracket tothe bottom of the SEH as shown in Figure 3 3 HubSTACK t0BAS 24 11 11 Figure 3 3 Attaching the Strain Relief Page 3 4 INSTALLATION 3 2 3 Rack Mounting the SEH Refer to Figure 3 4 and perform these steps to install the SEH ina 19 inch rack 1 Remove four cover screws two from each side located along the front edges of each side of the SEH 2 Using the four cover screws removed in step 1 attach the rack mounting brackets to each end of the SEH Rack Mounting p TUE e HubSTACK 10BASE T HUB wire LANVIEW SEH 24 0000000000000 606000005000 Figure 3 4 Installing the Rack Mount Brackets 3 With the mounting brackets installed position the SEH between the vertical frame members of the 19 inch rack and fasten it securely with the mounting screws as shown in Figure 3 5 J 19 Inch Rack HubSTACK 10BASE T HUB wm LANVIEW SEH 24 N ve oo Figure 3 5 Installing the SEH in the Rack Page 3 5 INSTALLATION 3 2 4 Wall Mounting the SEH When you wall mount the SEH the cable connections must face down Refer to Figure 3 6 and perform the following steps to wall mount the SEH Note 1 4 inch Molly screw anchors for wall mounting are not included with t
25. CT N Figure 1 1 The SEH 24 and SEH 34 Page 1 2 INTRODUCTION You can stack together up to five SEH hubs using Cabletron Systems external HubSTACK Interconnect cables If you want to add management to the stack Cabletron Systems offers the MicroMM AC and the SEHI intelligent hubs You can stack up to four SEHs with one intelligent hub Stackable configurations let you maintain only one repeater hop while providing up to 130 Ethernet ports The SEH 22 24 and SEH 32 34 arefunctionally identical with the exception of the network ports SEH 22 12 RJ 45 network ports and port SEH 24 24 RJ 45 network ports and two ports SEH 32 50 pin Champ connector providing 12 twisted pair segments and one EPIM port SEH 34 two 50 pin Champ connectors providing 24 twisted pair segments and two EPIM ports 14 SEH FEATURES Repeater Functionality The SEH fully conforms tothe IEEE 802 3 Repeater AUI and 10BASE T specifications and provides the flexibility to connect networks using IEEE 802 3 Ethernet Version 1 or Version 2 equipment The SEH transmits re timed data packets regenerates the preamble extends fragments and arbitrates collisions The SEH automatically partitions problem segments and reconnects repaired segments to the network This feature minimizes the impact on network operation by isolating the problem segment Only devices on the problem segment are aff
26. Error Rate Better than 1070 Note Thetransmitter power leves given above are Peak Power Levels after optical overshoot You must use a Peak Power Meter to correctl y comparethe values given aboveto those measured on any particular port If you are measuring power leves with an Average Power Meter add 3 dBm to the average power measurement to correctl y comparethe average power values measured to the values listed above i e 33 5 dBm average 3 dB 30 5 dBm peak Page 2 13 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 3 4 EPIM C TheEPIM C supports thin net coaxial cabling and is equipped with an internal Cabletron Systems TMS 3 Transceiver You can use the TERM switch on the front of the EPIM C to set the internal 50 Ohm terminator This eliminates the need to connect the port toa tee connector and terminator Figure 2 6 shows the setting for the terminator switch 22 Internal Termination Switch On internally terminated Off need external termination Figure 2 6 EPIM C Connector Type BNC receptacle with gold center contact for use with BNC type tee connectors and RG 58 thin net cable Grounding For safety only one end of a thin net segment should be connected to earth ground Connection to earth ground at more than one point on the segment may cause dangerous ground currents The BNC port of the Coaxial nterface Modules is not connected to ear
27. IED WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product was developed solely at private expense b contains restricted computer software submitted with restricted rights in accordance with Section 52227 19 a through d of the Commercial Computer Software Restricted Rights Clause and its successors and c in all respects is proprietary data belonging to Cabletron and or its suppliers For Department of Defense units the product is licensed with Restricted Rights as defined in the DoD Supplement to the F ederal Acquisition Regulations Section 52 227 7013 1 ii and its successors and use duplication disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at 252 227 7013 Cabletron Systems Inc 35 Industrial Way Rochester New Hampshire 03867 CONTENTS TABLE OF CONTENTS APPENDIXA TABLE OF CONTENTS CHAPTER 1 INTRODUCTION 11 USING THIS MANUAL 1 menn 1 1 1 2 GETLTING HELP 1 2 13 SEH OVERVIEW 1 2 1 4 SEHijRENATURES o heroe P tee ne En 1 3 15 STACKABLE CAPABILITIES mH 1 4 16 OPTIONAL FEATURES eene enn 1 4 17 RELATED MANUALS enden 1 5 CHAPTER 2 INSTALLATION
28. NG SPECIFICATIONS This section describes the operating specifications for the SEH Cabletron Systems reserves the right to change these specifications at any time without notice GENERAL Delay Times Start of Packets Twisted Pair to EPIM A 1 10 microseconds Twisted Pair to Twisted Pair 1 00 microseconds EPIM A toTwisted Pair 1 00 microseconds Delay Times J AM Twisted Pair to EPIM A 960 nanoseconds Preamble Input Minimum of 40 bits required Output 64 bits min last 2 bits are 1 1 Page 2 16 INSTALLATION REQUIREMENTS SPECIFICATIONS J AM Output Collisions are propagated through the network using the J AM signal of an alternating pattern of 1 s and O s in accordance with 802 3 specifications for a repeater unit Fragment Extension Packet fragments are extended to a minimum of 96 bits using the J 1 0 Fault Protection Each segment will disconnect itself from the other segments if 32 consecutive collisions occur or if the collision detector of a segment is on for longer than approximately 110 us This fault protection will reset automatically after one packet is transmitted received onto the fault protected segment without causing a collision POWER SUPPLY REQUIREMENTS Note TheSEH has a universal power supply This unit allows you to usean input power from 90 to 264 VAC 47 63 Hz The power supply has two outputs of 5 volts and 12 volts The maximum output power is 20 watts and the minimum
29. RX RX TX TX RX RX TX To RJ 45 Wallplate Pin 1 2 TX 3 RX 6 RX Pin 1 2 TX 3 RX 6 RX Pin 1 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Into Office Drop Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Into 10B ASE T Device Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 2 3 RX 6 RX 5 TWISTED PAIR WIRING TABLES TableA 2 Twisted Pair Wiring from a Punch Down Block toa 10Base T Device Continued From Punch Down RJ 45 Into Into Block Wallplate Office 10 5 Drop Device Port 8 20 Pin Pin Pin B29 Black Gray RX 1 1 TX 1 B30 Gray Black RX 2 TX 2 TX 2 TX B31 Yellow Blue TX 3 RX 3 RX 3 RX B32 Blue Yellow TX 6RX 6 RX 6 RX Port 7 19 Pin Pin Pin B25 Black Green RX 1 1 1 TX B26 Green Black RX 2 TX 2 TX 2 TX B27 Black Brown TX 3 RX 3 RX 3 RX B28 Brown Black TX 6 RX 6 RX 6 RX Port 6 18 Pin Pin Pin B21 Black Blue RX 1 1 TX 1 TX B22 Blue Black RX 2 TX 2 TX 2 TX B23 Black Orange TX 3 RX 3 RX 3 RX B24 Orange Blackk TX 6 RX 6 RX 6 RX Port 5 17 Pin Pin Pin B17 Red Brown RX 1 1 1 B18 Brown Red RX 2 TX 2 TX 2 TX B19 Red Gray 3 RX 3 RX 3 RX B20 Gray Red T
30. SEH 22 SEH 24 SEH 32 AND SEH 34 10 5 STACKABLE USER S GUIDE CABLETRON YSTEMS The Complete Networking Solution CABLETRON SYSTEMS P O Box 5005 Rochester NH 03866 5005 NOTICE NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made The hardware firmware or software described in this manual is subject to change without notice IN NOEVENT SHALL CABLETRON SYSTEMS BE LIABLE FORANY INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright 1994 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Order Number 9030903 01 F ebruary 94 SPECTRUM LANVIEW Remote LANVIEW HubSTACK and MicroMMAC aretrademarks of Cabletron Systems Inc IBM is a registered trademark of International Business Machines Corporation CompuServe is a registered trademark of CompuServe I DEC VT 200 and VT300 are trademarks of Digital Equipment Corporation Ethernet is a
31. Stacking the SEH The rear panel of the SEH has an SEH Interconnect Bus Port female connector and an SEH Interconnect Bus Out Port male connector You daisy chain units together using Cabletron Systems HubSTACK Interconnect cables Table 3 1 describes each cable Table 3 1 HubSTACK Interconnect Cables Part Description Application Number 9380110 12 HubSTACK SEH to SEH connections Interconnect Cable 9380111 18 HubSTACK SEHI or MicroMMAC to nterconnect Cable SEH connections Page 3 2 INSTALLATION To stack SEHs together refer to Figure 3 1 and perform the following steps 1 Attach the SEH HubSTACK Interconnect cable to the bus port labeled OUT on the rear panel of the SEH 2 Attach the other end of SEH HubSTACK Interconnect cable tothe bus port labeled IN therear panel of the SEH next in the stack 3 Attach up to four SEH hubs in the stack repeating steps 1 and 2 SEH 24 10BASE T HUB wins LANVIEW SEH 24 10BASE T HUB wins LANVIEW 17 Sm Se rura dA D iM ZTN 24 HUB wn LANVIEW s 17 Atle sm sg prz Ni ZTA SEH 24 10BASE T HUB w 17 17 sm 741 24 10BASE T HUB SEH 24 T HUB 5 17 17
32. T 1 7 RELATED MANUALS Us the SEHI 22 24 and SEHI 32 34 User s Guide and the MicroMMAC 22E 24 and 32 4 User s Guideto supplement the procedures and other technical data provided in this manual The procedures contained in these manuals are referenced where appropriate rather than repeated in this manual Page 1 5 INSTALLATION REQUIREMENTS SPECIFICATIONS CHAPTER 2 INSTALLATION REQUIREMENTS SPECIFICATIONS This chapter describes network guidelines power requirements and operating specifications for the SEH Be sure to read this chapter before you install the SEH Your network must meet the requirements and conditions specified in this chapter to obtain satisfactory performance from this equipment Failure to follow these guidelines could result in poor network performance 2 1 CABLE SPECIFICATIONS The SEH network ports support both Shielded Twisted Pair STP or Unshielded Twisted Pair UTP cabling The Ethernet Port Interface Modules EPIMs let you expand your network using UTP STP Multimode Fiber Optic Single Mode Fiber Optic or Thin Coaxial cabling The rear panel Interconnect Bus Ports support Cabletron Systems HubSTACK Interconnect cables for stackable applications Take carein planning and preparing the cabling and connections for your network The quality of the connections and the length of cables are critical factors in determining the reliability of your network The following secti
33. TS SPECIFICATIONS CONTENTS CHAPTER 3 INSTALLATION 3 1 UNPACKING THE 3 1 3 2 INSTALLING THE 07 7 3 1 3 2 1 Stacking the SELL os penetret 3 2 3 2 2 Attaching the Strain Relief 3 4 3 2 3 Rack Mounting the SEH 3 5 3 24 Wall 3 6 3 25 Free Standing 3 7 3 3 CONNECTING THE SEH TO THE POWER SOURCE 3 8 CHAPTER 4 CONNECTING TO THE NETWORK 41 CONNECTING THE SEH TO THE NETWORK 4 1 4 11 Connecting Network Ports SEH 22 and SEH 24 4 1 4 12 Connecting Network Ports SEH 32 and SEH 34 4 3 4 13 Connecting a UTP Segment to an EPIM T 4 4 4 14 Connecting a Fiber Optic Link Segment to an EPIM F 1 EPIM F2 or EPIM F 34 5 4 15 Connecting a Thin Net Segment to 4 8 4 16 Connecting an AUI Cableto an 4 10 4 17 Connecting an AUI Cable to an EPIM X 4 11 42 FINISHING THE INSTALLATION 4 12 CHAPTER 5 TROUBLESHOOTING 5 1 INSTALLATION CHECK OUT mee 5 1 5 2 USING LANVIEW rnit eti tr rra tei 5 2 APPENDIXB TWISTED PAIR WIRING TABLES A 1 vi INTRODUCTION CHAPTER 1 INTRODUCTION Welcome to the Cabletron Systems SEH 22 SEH 24 SEH 32 and
34. X 6 RX 6 RX 6 RX Page A 6 TWISTED PAIR WIRING TABLES Table A 2 Twisted Pair Wiring from a Punch Down Block to 10Base T Device Continued From Punch Down Block Port 4 16 B13 Red Orange B14 Orange Red B15 Red Green B16 Green Red Port 3 15 B9 White Gray B10 Gray White B11 Red Blue B12 Blue Red Port 2 14 B5 White Green B6 Green White B7 White Brown B8 Brown White Port 1 13 B1 White Blue B2 Blue White B3 White Orange B4 Orange White RX RX TX TX RX RX TX TX RX RX TX TX RX RX TX TX To RJ 45 Wallplate Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Into Office Drop Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Into 10BASE T Device Pin 1 TX 2 TX 2 TX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Pin 1 TX 2 TX 3 RX 6 RX Page A 7 TWISTED PAIR WIRING TABLES Champ Port 12 48 RX 23 RX 49 TX 24 TX Port 11 46 RX 21 RX 47 TX 22 TX Port 1 26 RX 1 RX 27 TX 2 TX Page A 8 Table A 3 Twisted Pair Wiring Summary SEH 32 34 25 Pin F eede 25 F eedel 25 F eede Cabl Punch Down Block
35. alues listed i e 30 5 dBm peak 33 5 dBm average Page 2 11 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 3 3 EPIM F3 The EPIM F3 shown in Figure 2 5 supports Single M ode Fiber Optic cabling It has an internal Cabletron Systems FOT F Fiber Optic Transceiver and is equipped with ST Connectors Specifications for the EPIM F3 are listed below Figure 2 5 EPIM F3 Note Transmitter Power decreases as temperatures rise and increases as temperatures fall UsetheOutput Power Coefficient to calculate increased or decreased power output for your operating environment F or example thetypical power output at 25 C is 16 4 dBm For a 4 C temperatureincrease multiply thetypical coefficient 0 15 dBm by four and add theresult to typical output power 4 x 0 15 dBm 16 4 17 0 Page 2 12 INSTALLATION REQUIREMENTS SPECIFICATIONS Maximum Sensitivity 36 0 Receive Sensitivity Maximum Receive Input Power Maximum Transmit Power 12 0 Transmitter Power At 25 C into 8 3 125 fiber dBm 40 35 30 25 20 15 10 5 0 Less Power More Power Transmit Power Typical Power Minimum Power Maximum Power Coefficient See Note Below 0 15dBm 0 12 dBm C 0 18 dBm Parameter Typical Minimum Maximum Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm Spectral Width 60 nm 100 nm Rise Time 3 0 nsec 2 7 5 0 nsec Fall Time 2 5 nsec 2 2 nsec 5 0 nsec Duty Cyde 50 1 49 6 50 7 Bit
36. compile or disassemble the Program 3 APPLICABLE LAW This License Agreement shall be interpreted and governed under the laws and in the state and federal courts of New Hampshire Y ou accept the personal jurisdiction and venue of the New Hampshire courts NOTICE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY EXCLUSION OF WARRANTY as may be specifically provided by Cabletron in writing Cabletron makes no warranty expressed or implied concerning the Program induding Its documentation and media CABLETRON DISCLAIMS ALL WARRANTIES OTHER THAN THOSE SUPPLIED TO YOU BY CABLETRON IN WRITING EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TOIMPLIED WARRANTIES OF MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PROGRAM THE ACCOMPANYING WRITTEN MATERIALS AND ANY ACCOMPANYING HARDWARE NOLIABILITY FOR CONSEQUENTIAL DAMAGES IN NO EVENT SHALL CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING WITHOUT LIMITATION DAMAGES FOR LOSS OF BUSINESS PROFITS BUSINESS INTERRUPTION LOSS OF BUSINESS INFORMATION SPECIAL INCIDENTAL CONSEQUENTIAL OR RELIANCE DAMAGES OR OTHER LOSS ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL ORINCIDENTAL DAMAGES OR ON THE DURATION OR LIMITATION OF IMPL
37. covering the SEH in the shipping box 2 Carefully remove the SEH from the shipping box 3 Removethe SEH fromthe protective plastic bag and set it aside to prevent damage 4 Visually inspect the SEH If there are any signs of damage contact Cabletron Systems Technical Support immediately 3 2 INSTALLING THE SEH You can install the SEH to your network as a stackable or stand alone hub If you want to install the SEH on wall or a 19 inch rack Cabletron Systems offers an accessory kit that includes Rack Mount Brackets Wall Mount Brackets Mounting Screws and a Strain Relief Bracket The accessory kit is not included with the SEH but you can purchase it separately from Cabletron Systems as Part Number SEH ACCY KIT Page 3 1 INSTALLATION Free standing and shelf installations must be within in reach of the network cabling and meet the requirements listed below single phase 120Vac 15A grounded power receptacle must be located within 7 feet of the location e If you usea shelving unit it must be able to support 30 pounds of static weight for each device in the stack Thetemperature for the selected location must be maintained between 5 and 50 C and fluctuate less than 10 C per hour The following sections provide instructions for stacking the SEH or installing it as a stand alone device Select one of the following subsections and perform the steps that are applicable to your installation needs 3 2 1
38. ected When the problem is solved the SEH automatically reconnects the isolated segment to the network Polarity Detection and Correction Each twisted pair port on the SEH incorporates a Polarity Detection and Correction feature that allows the SEH to pass data regardless of the polarity of the twisted pair segment s receive link We do not recommend operating in this condition If you discover this condition remove the segment from the network and wire it correctly This reduces the potential for problems if equipment changes are made Page 1 3 INTRODUCTION LANVIEW LEDs Cabletron Systems LANVIEW Status Monitoring and Diagnostics System is a troubleshooting tool that helps you diagnose power failures collisions cable faults and link problems The LANVIEW LEDs are conveniently located on the front panel 15 STACKABLE CAPABILITIES The SEH is a non intelligent hub designed to be managed by either the Cabletron Systems SEHI intelligent hub or the Cabletron Systems MicroMMAC intelligent hub Intelligent hubs serve as the logical top of the stack They manage all SEH hubs in the stack providing full packet and error statistics for the entire stack individual device or individual port You can stack together up to five SEHs for a non managed stack or one intelligent hub and up to four SEHs for a managed stack You can also add or remove hubs from the stack without having to power down 16 OPTIONAL FEATURES The following featur
39. es are not included with the SEH but can be purchased separately from Cabletron Systems Ethernet Port Interface Modules EPIMs EPIMs let you expand your network through a variety of media Cabletron offers the EPIMs shown in Table 1 1 Table 1 1 EPIMs EPIM Media Type Connector EPIM A AUI DB15 Female EPIM C 10 5 2 Thin Coaxial BNC EPIM T 10 5 Unshielded RJ 45 Twisted Pair EPIM X Standard Transceiver DB15 Male EPIM F1 Multimode Fiber SMA EPIM F2 Multimode Fiber ST EPIM F3 Single Mode Fiber ST Page 1 4 INTRODUCTION Daughter Board Upgrade Kit You can upgrade the SEH 22 and the SEH 32 to 24 ports using the daughter board upgrade kit The Cabletron part numbers for the upgrades are e SEH 22 24PORT UGKT E e SEH 32 24PORT UGKT E 50P HubSTACK Interconnect Cables You need Cabletron s HubSTACK Interconnect cables to stack hubs together Table 1 2 lists the part number and application for each cable Table 1 2 HubSTACK Interconnect Cables Part Description Application Number 9380110 12 HubSTACK SEH to SEH connections Interconnect Cable 9380111 18 HubSTACK SEHI or MicroMMAC to nterconnect Cable SEH connections Rack Mount or Wall Mount Hardware You can install your SEH in a 19 inch rack or mount it on a wall Cabletron offers an accessory package that includes brackets and mounting screws The part number for the accessory package is SEH ACCY KI
40. evice We recommend that you label the fiber optic cabletoindicate which fiber is Receive and which is Transmit When you buy fiber optic cable from Cabletron Systems it is labeled so that at oneend of thecable onefiber is labeled 1 and the other fiber is labeled 2 This pattern is repeated at the other end of the cable If you did not purchase your cable from Cabletron Systems be sure you label your cable as described above Caution Do not touch the ends of thefiber optic strands and do not let the ends comein contact with dust dirt or other contaminants Contamination of theends can causeproblemsin data transmissions If the ends become contaminated clean them with alcohol using a soft dean lint free doth To connect a fiber optic link segment to an EPIM F 1 EPIM F2 or EPIM F3 1 Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors on each fiber strand 2 Attachthefiber labeled 1totheapplicablereceive port labeled RX on the module See Figure 4 4 Page 4 6 CONNECTING TO THE NETWORK F1 F2 SMA 906 Connectors w Half Alignment Sleeves lt ST Connectors ac Figure 4 4 The EPIM F 1 EPIM F2 and EPIM F3 Attach the fiber labeled 2 to the applicable transmit port labeled TX on the module At the other end of the fiber optic cable attach the fiber labeled 1 to the transmit port of the device
41. he SEH ACCY KIT package Use the supplied screws to attach the wall mounting brackets to the bottom of the SEH as shown in Figure 3 6 There are two brackets one for each side A Molly Screw 7 Anchors x bee Molly Screws Wall Mounting Bracket Bracket Screws Figure 3 6 Installing the Wall Mounting Brackets 2 Select the wall location for the SEH within 7 feet of a power outlet Warning Thereis potential SHOCK HAZARD if thereis electrical wiring within thewall that interferes with drilling for pilot holes Select a wall location wheredrilling pilot holes for theMolly screws will not comein contact with dectrical wiring in the wall Page 3 6 INSTALLATION 3 You will needa pencil for this step With the wall mounting brackets attached to the SEH position the SEH against the wall whereit will be permanently mounted with the network port facing down Use the pencil to mark the wall location for the four pilot holes 4 Set theSEH aside and carefully drill four 1 4 pilot holes one for each of the Molly screw anchors and insert the four Molly screw anchors into the holes just drilled 5 Tighten each of the anchor screws until theanchor expands holding the anchor firmly in the wall then remove the screws completely 6 Position the SEH on the wall over the anchors and reinstall the four anchor screws to attach the SEH tothe wall as shown in Figure 3 6 Tighten the four anchor screws 3
42. lowing sections provide specifications for each SEH model Page 2 7 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 2 1 SEH 22 and SEH 24 Network Port Specifications SEH 22 and SEH 24 provide RJ 45 connections for network connections Figure 2 1 shows the RJ 45 pinouts 12345678 a 12 11X 10X 1 Receive 5 Not Used 2 Receive 6 Transmit 3 Transmit 7 Not Used 4 Not Used 8 Not Used Figure 2 1 RJ 45 Network Ports 2 2 2 SEH 32 and SEH 34 Network Port Specifications The SEH 32 and SEH 34 provide 50 pin Champ connectors for network connections as shown in Figure 2 2 Table 2 3 shows the pinouts for the Champ connector 24X 13X 12 1X Figure 2 2 SEH 34 Network Ports Page 2 8 Pin ON 0 UN H N N NN N pP oH p amp INSTALLATION REQUIREMENTS SPECIFICATIONS Signal RX 1 TX 1 RX 2 TX 2 RX 3 TX 3 RX 4 TX 4 RX 5 TX 5 RX 6 TX 6 RX 7 TX 7 RX 8 TX 8 RX 9 TX 9 RX 10 TX 10 RX 11 TX 11 RX 12 TX 12 N C Table 2 3 Champ Connector Pinouts 50 Pin Champ Connector Wire Color Blue White Orange White Green White Brown White Gray White Blue Red Orange Red Green Red Brown Red Gray Red Blue Black Orange Black Green Black Brown Black Gray Black Blue Yellow Orange Yellow Green Yellow Brow
43. n Yellow Gray Yellow Blue Violet Orange Violet Green Violet Brown Violet Gray Violet Pin 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Signal RX 1 TX 1 RX 2 TX 2 RX 3 TX 3 RX 4 TX 4 RX 5 TX 5 RX 6 TX 6 RX 7 TX 7 RX 8 TX 8 RX 9 TX 9 RX 10 TX 10 RX 11 TX 11 RX 12 TX 12 N C Wire Color White Blue White Orange White Green White Brown White Gray Red Blue Red Orange Red Green Red Brown Red Gray Black Blue Black Orange Black Green Black Brown Black Gray Yellow Blue Yellow Orange Yellow Green Yellow Brown Yellow Gray Violet Blue Violet Orange Violet Green Brown Violet Gray Page 2 9 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 3 EPIM SPECIFICATIONS EPIMs let you connect the SEH to the main network using different media types Cabletron Systems offers a variety of EPIMs The following sections explain specifications for each EPIM 2 3 1 EPIM T The EPIM T is RJ 45 connector supporting UTP cabling It has an internal Cabletron Systems TPT T LOBASE T Twisted Pair Transceiver The slide switch on the EPIM T determines the cross over status of the cable pairs If the switch is the X side the pairs are internally crossed over If the switch is on the z side the pairs are not internally crossed over Figure 2 3 shows the pinouts for the EPIM T in both cross over positions Position X crossed over
44. n step 1 3 Connect the AUI cable tothe AUI port located on the EPIM A See Figure 4 6 4 Lockthe AUI connector into place using the connector slide latch Figure 4 6 The EPIM A Page 4 10 CONNECTING TO THE NETWORK 5 Check that the PWR LED on the EPIM A is on If the LED is not on contact Cabletron Systems Technical Support 6 Ifthe PWR LED ison with the AUI cable disconnected continue with the following checks a Check the AUI connections for proper pinouts The pinouts for thetransceiver connection are listed in Chapter 2 b Check the cable for continuity c Reconnect the AUI cabletothe SEH and the device If the LED is still not on after reconnecting the segment contact Cabletron Systems Technical Support 4 1 7 Connecting an AUI Cableto an EPIM X Caution Thesignal quality error SQE switch remains in theOFF position for most network connections However some Data Terminal Equipment DTE requires SQE Refer to your DTE manual for SQE requirement information To connect an EPIM X toa device not requiring SQE 1 Check that the SQE LED on the EPIM x is off If the SQE LED is on check the position of the SQE switch Note If the SQE light remains on even though theSQE switch is in the OFF position contact Cabletron Technical Support 2 Attach oneend of an AUI cable nolonger than 50 meters in length to the port located on the EPIM X Figure 4 7 and the other end to the intended node Page 4 11
45. nectors A maximum of 29 tee connectors may be used throughout the length of cable segment for host connections If an excessive number of barrel connectors are used within the cable segment such as finished wall plates with BNC feed throughs then a reduced number of host connections may be required For special network design contact Cabletron Systems Technical Support Grounding For safety ground only one end of a thin net segment Do NOT connect BNC ports to earth ground Warning Connecting a thin net segment to earth ground at morethan one point could produce dangerous ground currents Page 2 6 INSTALLATION REQUIREMENTS SPECIFICATIONS 2 16 AUI Cable Requirements for the and EPIM X Modules When you connect an external network segment to the SEH via an or EPIM X the AUI cable must meet the following requirements AUI Cable The cable connecting the module to a device must be IEEE 802 3 type cable Length TheAUI Cable must not exceed 50 meters in length If 28 AWG thin office drop AUI cable is used then the maximum cable length is limited to 50 feet 15 24 meters Grounding The connector shell of the EPIM A and the EPIM X are connected to ground 2 2 NETWORK PORT SPECIFICATIONS The SEH 22 and SEH 24 network ports are shielded RJ 45 connectors that support both STP and UTP cabling The SEH 32 and SEH 34 provide a 50 pin Champ style connector for network connections The fol
46. ons describe specifications for each media type 2 1 1 HubSTACK Interconnect Cable Requirements You connect units in the stack with HubSTACK Interconnect cables Refer to Chapter 1 for cable part numbers The cables attach to the 5 rear panel bus ports rear panel of the SEH has an SEH Interconnect Bus Out Port male connector and an SEH Interconnect Bus In Port female connector The bus supports five stackable devices Page 2 1 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 1 2 UTP and STP Cable Specifications for the Network Ports and EPIM T Module The device at the other end of the twisted pair segment must meet IEEE 802 3 10BASE T specifications When you connect a 1OBASE T Twisted Pair Segment to the 5 5 10 5 Twisted Pair Network Ports and EPIM T module your network must meet the following requirements Length ThelEEE 802 3 1OBASE T standard requires that 10 5 devices transmit over a 100 meter 328 foot link using 22 24 AWG unshielded twisted pair wire However cable quality largely determines maximum link length If you use high quality low attenuation cable you can achieve link lengths of up to 200 meters Cable delay limits maximum link length to 200 meters regardless of the cable type Insertion Loss The maximum insertion loss allowed for a 1OBASE T link is 11 5 dB at all frequencies between 5 0 and 10 MHz This indudes the attenuation of the cables connectors patch panels and
47. reflection losses dueto impedance mismatches in the link segment Impedance Cabletron Systems 10BASE T Twisted Pair products will work on twisted pair cable with 75 to 165 ohms impedance U nshielded twisted pair cables typically have an impedance of between 85 to 110 ohms Shielded twisted pair cables such as Type 1 cable can also be used You should remember that the impedance of IBM Type 1 cableis typically 150 ohms This increases the signal reflection caused by the cable but since the cable is shielded this signal reflection has little effect on the received signal s quality due to the lack of crosstalk between the shielded cable pairs J itter Intersymbol interference and reflections can cause jitter in the bit cell timing resulting in data errors A LOBASE T link must not generate more than 5 0 nsec of jitter If your cable meets the impedance requirements for a LOBASE T link jitter should not be a concern Page 2 2 INSTALLATION REQUIREMENTS SPECIFICATIONS Delay The maximum propagation delay of a 10 5 link segment must not exceed 1000 nsec This 1000 nsec maximum delay limits the maximum link segment length to no greater than 200 meters Crosstalk Crosstalk is caused by signal coupling between the different cable pairs contained within a multi pair cable bundle LOBASE T transceivers are designed so that the user does not need to be concerned about cable crosstalk provided the cable meets all other
48. requirements Noise Noise can be caused by either crosstalk or externally induced impulses Impulse noise may cause data errors if the impulses occur at very specific times during data transmission Generally the user need not be concerned about noise If noise related data errors are suspected it may be necessary to either reroute the cable or eliminate the source of the impulse noise Temperature Multi pair PVC 24 AWG telephone cables typically have an attenuation of approximately 8 to 10 dB 100m at 20 C 78 F The attenuation of PVC insulated cable varies significantly with temperature At temperatures greater than 40 C 104 F we strongly recommend that you use plenum rated cables to ensure that cable attenuation remains within specification Page 2 3 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 1 3 Multimode Fiber Optic Cable Specifications for the EPIM F1 and EPIM F2 Modules Table 2 1 shows Multimode Fiber Optic Cable specifications for the EPIM F1 and EPIM F2 modules Table 2 1 Multimode Fiber Optic Cable Specifications Cable Type Attenuation Maximum Cable Length 50 125 um 13 0 dB or less The maximum allowablefiber optic cable length is 2 km 62 5 125 um 16 0 dB or less 2187 2 yards However 100 140 um 19 0 dB or less IEEE 802 3 specifications allow for a maximum of 1 km 1093 6 yards Attenuation You must test the fiber optic cable with a fiber optic attenuation test set adjusted for
49. t of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques dela class A prescrites dans le R glement sur le brouillage radio lectrique dict par le minist re des Communications du Canada NOTICE CABLETRON SYSTEMS INC PROGRAM LICENSE AGREEMENT IMPORTANT Before utilizing this product carefully read this License Agreement This document is an agreement between you the end user and Cabletron Systems Inc Cabletron that sets forth your rights and obligations with respect to the Cabletron software program the Program contained in this package The Program may be contained in firmware chips or other media BY UTILIZING THE ENCLOSED PRODUCT YOU ARE AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT WHICH INCLUDES THE LICENSE AND THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY IF YOU DO NOT AGREE TO THE TERMS OF THISAGREEMENT PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FORA FULL REFUND CABLETRON SOFTWARE PROGRAM LICENSE 1 LICENSE Youhavetheright touseonly theone 1 copy of the Program provided in this package subject to the terms and conditions of this License Agreement You may not copy reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron 2 OTHER RESTRICTIONS You may not reverse engineer de
50. th ground Page 2 14 INSTALLATION REQUIREMENTS SPECIFICATIONS 2 3 5 EPIM A and EPIM X AUI Port The EPIM A is a DB15 female connector used to attach segments to an external transceiver The EPIM X is equipped with dual internal transceivers It has aDB15 male connector used to attach segments to an AUI cable Figure 2 7 shows both modules o L PWR SQE O OWENS ERIN Figure 2 7 The EPIM A and DB15 Pinouts Pin 1 Logic Ref 9 Collision 2 Collision 10 Transmit 3 Transmit 11 Logic Ref 4 Logic Ref 12 Receive 5 Receive 13 Power 12Vdc 6 Power Return 14 Logic Ref 7 15 NoConnection Connector Shell Protective Ground Page 2 15 INSTALLATION REQUIRE MENTS SPECIFICATIONS 2 4 TRANSCEIVER REQUIREMENTS When you connect an external network segment via a transceiver to the SEH with EPIM A the following requirements must be met e Thetransceiver or Ethernet Device to which the module will be connected must meet 802 3 standards and or Ethernet Version 1 0 or Version 2 0 standards e The Signal Quality Error SQE test function on the transceiver must be disabled if you connect it to a repeater or toan Ethernet Version 1 0 device addition someVersion 2 0 equipment does not support the SQE test Devices that do not support SQE test interpret the SQE test pulse as a collision 2 5 OPERATI
51. ty If a link has not been established contact Cabletron Systems Technical Support 4 1 3 Connecting UTP Segment to an EPIM T Before connecting a segment to the EPIM T check each end of the segment to determine if the wires have been crossed over for the proper connection If the wires do not cross over usethe switch on the EPIM T tointernally cross over the RJ 45 port Refer to Figure 4 3 to properly set the EPIM T cross over switch Position X crossed over 1 RX 5 NC 2 RX 6 TX 3 TX 7 NC 4 NC 8 NC Position not crossed over 1 TX 5 NC 2 TX 6 RX 3 RX 7 NC 4 NC 8 NC Figure 4 3 EPIM T Cross over Switch Page 4 4 CONNECTING TO THE NETWORK To connect EPIM T Twisted Pair Segment Insert the RJ 45 connector on the twisted pair segment into the RJ 45 port on the EPIM See Figure 4 3 2 Check that the EPIM s LNK LED is on If the LED is not on perform each of the following steps until it is a e Check that the 1OBASE T device at the other end of thetwisted pair segment is powered up Verify that the RJ 45 connector on the twisted pair segment has the proper pinouts Check the cable for continuity Check that the twisted pair connection meets dB loss and cable specifications outlined in Chapter 2 Check that the crossover switch is in the correct position If a link still has not been established contact Cabletron Systems Technical Support 4

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