Patton electronic 2710 Switch User Manual
Contents
1. Model 2710s p oO aa eet 1 544MBps or nx56 64 goa a iii arer By 2 eral E E m Up to 6000 Feet 1 83 km 3 0 CONFIGURATION The Model 2710 features configuration capability via hardware switches or a software control port This section describes all possible hardware and software switch configurations of the NetLink T1 3 1 DIP SWITCH CONFIGURATION The Model 2710 has eight internal DIP switches that allow configu ration for a wide range of applications The eight switches are accessed by opening the plastic case with a small screwdriver Figure 1 below shows the location of the DIP switches on the bottom of the printed circuit board Software Configuration Port DIP Switches dee Figure 1 Model 2710 Series bottom view showing location of DIP switches The Model 2710 DIP switches Switches SW1 SW8 can be con figured as either On or Off Figure 2 below shows the orientation of the DIP switches with respect to ON OFF positions subueee Figure 2 Close up of DIP switches showing ON OFF positions Default positions for Switches SW1 SW8 are shown in the table on the following page Descriptions of each switch follow the table SWITCH SET SUMMARY TABLE Switch SW4 Line Framing and Coding Position Function Factory Default Selected Option Use Switch SW4 to control the Network Line Framing and Coding SW1 Data2. The NetLink T1 offers three ways to supply external power AC power DC power and interface power 4 3 1 Using the AC Power Supply 120VAC or 100 240VAC The NetLink T1 uses a 5VDC 300mA 120VAC or universal input 100 240VAC power supply The universal input power supply is equipped with a male IEC 320 power entry connector This power sup ply connects to the NetLink T1 by means of a barrel jack on the rear panel There are a variety of international power cords available for the universal power supply The NetLink T1 powers up as soon as it is plugged into an AC outlet there is no power switch 4 3 2 Supplying DC Power You may bypass the DC wall adapter and supply DC power directly to the NetLink T1 power supply jack DC power supplied must be 5VDC 5 300mA minimum center positive and can be supplied via a barrel type plug with 2 1 5 5 10mm I D O D Shaft Length dimen sions 4 3 3 Supplying Power via pin KK You may also supply DC power directly to pin KK of the V 35 inter face DC Power supplied to pin KK must be 5VDC 5 300mA mini mum NOTE NetLink T1 is factory configured to accept power from the enclosed DC wall adapter See Sections 4 3 1 and 4 3 2 above If you wish to supply power via pin KK on the interface you must change the setting of the power supply jumper on the printed circuit board See Appendix E All power sources must be SELV Circuit Safety Extra Low Voltage specified See CEN
3. ELEC EN60950 Section 1 2 8 5 32 5 0 OPERATION Once the NetLink T1 is installed and configured properly it is LOS ready to place into operation This section describes the function of the LED indicators and the use of the loopback and pattern test modes 5 1 LED DESCRIPTIONS The NetLink T1 is equipped with seven LED indicators that moni ALM tor the status of communication Figure 4 below shows the location of the LEDs on the NetLink T1 Series front panel m MANNANNA n ERR TxD RxD H Los a ng am 2 ap 7 ERR N Em em 2 ad pwr PE I I I TST I Figure 4 Top of NetLink T1 Showing LED Indicators TXD When the unit sends a one the TXD LED is turned on When it sends a zero the TXD LED is turned off Moreover the TXD LED is active only in active DSO channels In inactive channels the TXD LED is off RXD When the unit receives a one the RXD LED is turned on When it receives a zero the RXD LED is turned off Moreover the RXD PWR LED is active only in active DSO channels In inactive channels the RXD LED is off 33 The Loss of Sync LED lights when the unit loses synchronization with the incoming sig nal This may happen when there is a fram ing mismatch or a loss of signal In unframed mode the LOS LED monitors the status of the transmit clock The alarm LED
4. Rx PRM The NetLink T1 transmits ANSI performance report messages once a second when the framing mode is ESF When the ESF Data Link is set to ANSI T1 403 the unit recognizes PRMs with addresses of 38h or 3Ah The address 3Ah indicates the PRM is coming from a Carrier whereas the address 38h indicates the PRM is coming from a Customer When the ESF Data Link is set to AT amp T TR54016 the unit recognizes Carrier originated PRMs which have an address of 3Ah Rx PRM 00010000000300023289 Current DIP Switch Settings The Switch settings are displayed here to facilitate troubleshooting your unit without opening up the unit first 28 3 2 4 Unit Options The Unit Options screen looks like this factory default Header Line 1 Patton Electronics Unit Options Menu Management Header Line 1 Patton Electronics Header Line 2 Menu Management Header Line 2 Password patton _____ _J password Loop Timeout 00 30 hh mm Highlighted items Set to Default Configuration ACTION E Service Informat ion lt _ Leads to sevice information screen Select Item Highlighted Item Accept Selection Change Options Space Bar Exit Esc Redraw Screen Ctr1 L Enter Model 2710 FT1 C5U gt _ commands and text entered here al Header Line 1 amp Header Line 2 Headers 1 and 2 are provided for easy identification of your unit after installation You may want to give each unit a un
5. Rate On Options Set these options to be the same as the Line Framing and Swe Data Rate On 1 536 Mbps Coding Options given to you by your Service Provider If you are using DTE Rate two Model 2710s together as short range modems set both units iden SW3 Data Rate On tically SW4 Framing amp Coding Off ESF B8ZS SW4 Line Framing amp Coding SW5 DS Zero Rate On 64 kbps Off ESF B8ZS SW6 Clock Mode Off Network On D4 AMI SW7 Line Build Out Off i f 0dB Line Framing Options SW8 Line Build Out Off D4 Superframe The D4 framing format as specified in AT amp T TR62411 is the standard in which twelve frames make up a Switches SW1 SW2 and SW3 superframe All signaling and synchronization are done in band Use Switches SW1 SW2 and SW3 to set the DTE data rate eee Each setting represents an nx56 nx64 setting Extended Superframe Extended Superframe as specified in AT amp T TR 54016 consists of twenty four 24 T1 frames The Swi Swe SW3 Speed framing bits are now used for framing CRC and the Facility Off Off Off Clear Channel Unframed Data Link FDL The FDL allows maintenance messages On Off Off 112kbps 128kbps and information to be passed between the 2710 and the Off On Off 224kbps 256kbps Central Office On On Off 336kbps 384kbps f i f Off Off On 448kbps 512kbps Line Coding Options a al ee Alternate Mark Inversion AMI This mode does not inherently On On On 1344kbpe t Ba6kbps account for ones density To meet this requirement each
6. Statistics options and functions are described below E Local Loop Idle default The Local Loop is a bi lateral loopback in which the data from the local DTE and the data from the remote unit are looped back to their respective sources See Section 5 3 Activate this loop to test the each of the DTE s connection to the NetLink T1 The Local Loop test has four states Idle No user controlled loopbacks are active LL The NetLink T1 is in local loopback mode Off The NetLink T1 is in remote loopback mode or sending a pattern Local loopback is disabled LocP The NetLink T1 is in Local Loopback mode and is sending a test pattern 23 b Remote Loop Idle default The Remote Digital Loopback RDL test checks the performance of both the local and remote NetLink T1 s as well as the communica tion link between them Data from the local DTE is sent across the entire communication circuit and looped back to the local DTE The NetLink T1 Initiating a RL can be in one of the following states Idle No user controlled loopbacks are active TxPr The NetLink T1 is sending the preparatory phase pat tern lasting for approximately 2 5 seconds WtAk The NetLink T1 is waiting for an acknowledgement from the remote unit If the remote unit does not respond the WtAk message will remain on the screen RxAk The NetLink T1 has received an acknowledgement from the remote unit Tout The NetLink T1 is wai
7. Superframe Format extends the DS1 superframe structure from 12 to 24 frames for a total of 4632 bits It redefines the 8 kb s channel previously used exclusively for terminal and robbed bit signaling synchronization The ESF provides a 4 kb s data link called the FDL which allows for in service monitoring and fast troubleshooting Certain net work services require the ESF UNFRAMED This is a special mode that allows you to achieve the maximum possible data rate of 1 544 Mb s million bits per second by using the framing bits for data transmission There is no signaling or FDL This is commonly used for campus connections and by the Federal government and the military This format is not to be used when connecting to a public car rier s network without its permission This provides one chan nel at a rate of 1 544 Mb s In addition this format can be used with external clocking J Line Coding B8ZS default Options AMI B8ZS B7ZS AMI Alternate Mark Inversion defines a pulse as a mark a binary one as opposed to a zero In a T1 DS1 network con nection signals are transmitted as a sequence of ones and zeros Ones are sent as pulses and zeros are sent as spaces i e no pulse Every other pulse is inverted from the previous pulse in polarity so that the signal can be effectively transmitted This means however that a long sequence of zeros in the data stream will cause problems since the CSU DS
8. To Model 2710 N A RS 232 Control Port Signals at DB 25 Connector a 5 NM 0 Signal Source Signal Direction Receive From 2710 Transmit Data To 2710 Ground RS 232 Control Port Signals at DB 9 Connector vu 5 NM 0 Signal Source Signal Direction Receive From 2710 Transmit Data To 2710 Ground 41 vu 5 HE lt x lt xS lt cHw HTDTVZAZreImAamows A gt A gt APPENDIX D continued PATTON NETLINK T1 MODEL 2710 INTERFACE PIN ASSIGNMENT M 34 Connector Terminal Interface Signal GND Earth Ground Shield SGND Signal Ground CTS DCE Source DSR DCE Source Always On CD DCE Source LL Local Loop DTE Source TM Test Mode Indicator DCE Source RL Remote Loop DTE Source TD Transmit Data DTE Source RD Receive Data DCE Source TD Transmit Data DTE Source RD Receive Data DCE Source XTC Transmit Clock DTE Source RC Receiver Clock DCE Source XTC Transmit Clock DCE Source RC Receiver Clock DCE Source TC Transmitter Clock DTE Source TC Transmitter Clock DTE Source Aux Power Input 5VDC 300mA 42 APPENDIX E PATTON NETLINK T1 MODEL 2710 POWER SUPPLY INTERFACE Via Main 5VDC power jack J1 Center Pin 5VDC 300 mA Outer Barrel Ground Jumper Position for Power via DC Power Jack default Via Auxiliary Power Supplied to Pin KK on V 35 connector DC Power supplied to pin KK must be 5VDC 5 300mA
9. be done in one of two ways a Enter Test Pattern from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until the desired test pattern appears b One of two result codes will appear to the right of the Test Pattern listing OK Indicates that the received test pattern is error free BE Indicates that there are errors in the test pattern to deliberately insert errors in the pattern toggle J Error Insertion to ON 37 APPENDIX A PATTON NETLINK T1 MODEL 2710 WAN Speed WAN Connection Nominal Impedance DTE Interface Line Coding Line Framing Receive LBO Transmit LBO Clock Options Diagnostics Standards Power Supply Dimensions SPECIFICATIONS 1 544 Mbps RJ 48C 100 Ohms Integral V 35 M 34 mal AMI B8ZS D4 ESF Unframed Automatic Selectable 0 7 5 15 or 22 5 dB plus DSX 1 Internal external or network clock Responds to CO initiated D4 loopup and loopdown codes ESF line loop and payload loop FDL messages Universal Loopback De activate message AT amp T TR62411 TR54016 ANSI T1 403 120VAC 60 Hz to 5VDC 300mA wall mount transformer or UI 100 240VAC 50 Hz to 5 VDC 3A wall mount trans former 3 5 L x 2 1 W x 0 78 H 9 0 x 5 3 x 1 9 cm 38 APPENDIX B APPENDIX C PATTON NETLINK T1 MODEL 2710 PATTON NETLINK T1 MODEL 2710 CABLE RECOMMENDATIONS FACTORY REPLACEMENT PARTS AND ACCESSORIES The Patton NetLink T1 Series has been
10. loopback timer times out See Unit Options Section 3 2 4 to make Loop Timeout choices This feature allows the remote user to regain control should one be locked out after a loop back is initiated 20 h Remote In band Loops Enabled default Options Enabled Disabled In ESF D4 and Unframed formats the unit can respond to special repeating codes in the data stream that represent loopback com mands The command to loop up go into loopback is a repeating pat tern of 00001s This pattern overwrites the normal data When this code is detected for 5 seconds the unit will go into loopback if the Remote In band Loopback is Enabled When a repeating code of 001s is received for 5 seconds the unit loops down goes out of loopback The delayed recognition guards against false starts since the code must be present for a long time continuously When Disabled the unit will recognize the codes but will not respond to them The loopback timeout also applies to this feature E V 54 Loops Enabled default Options Enabled Disabled This is a special in band loopback facility that sends a special pseudo random pattern over the data stream This is the only loopback that the unit can initiate This is useful for campus applications when you need to put a remote unit in loopback The unit responds to the V 54 loopback command and the whole process takes only a few sec onds to complete When V 54 Loopback is disabled the unit will not be
11. seconds When operating in ESF framing mode loopback commands are issued via the Facility Data Link FDL The line loop message will cause a loop back before data enters the framer portion of the CSU The payload loop message will cause the NetLink T1 to loop data after the framer portion of the CSU The NetLink T1 will respond to Universal Loopback De activate to clear all central office loops 36 5 3 BIT ERROR RATE V 52 DIAGNOSTICS The NetLink T1 offers three V 52 Bit Error Rate BER test pat terns These test patterns may be invoked along with the LAL and RDL tests to evaluate the unit s and the communication links When a 511 2047 or QRSS test is invoked the NetLink T1 generates a pseudo random bit pattern of 511 bits 2047 bits or 2 bits respectively using a mathematical polynomial The receiving NetLink T1 then decodes the received bits using the same polynomial If the received bits match the agreed upon pseudo random pattern then the NetLink T1 s and the communication link s are functioning properly 511 Initiates a built in 511 bit pseudo random pattern generator and detector 2047 Initiates a built in 2047 bit pseudo random pattern generator and detector QRSS Initiates a built in 2 bit pseudo random pattern generator and detector To perform a V 52 test follow these steps 1 Activate the local loopback or remote loopback diagnostic 2 Activate the test pattern This may
12. the NetLink T1 is turned off 14 The Main Menu options are briefly described below 3 2 2 System Configuration EJ System Configuration options allow you to change various The default System Configuration menu looks like this aspects of the NetLink T1 s operation e g framing line coding and aggregate bandwidth Patton Electronics Main Menu Menu Management b System Diagnostics Statistics options allow you to monitor M Line Format ESF initi s Line Coding B8ZS the network performance initiate V 54 loops local loops and Dosa uina Retas PEAN send test patterns Network performance parameters are EB Clocking Network updated once a second giving you the ability to quickly deter gq Line Build Out dB O 133 feet 0 dB A s 5 ESF Data Link ANSI T1 403 mine if there ISa problem ESF Carrier Loops Enabled d Remote In band Loops Enabled m P PERE TM V 54 Loops Enabled Unit Options allow you to customize the NetLink T1 for Default Config Source EEPROM your location You can change the default header names to A DSO Channel Configuration Menu Bandwidth Channels 1 536 24 give each unit a unique name and password Also you can cTan reset the unit to its default settings without the manual It also Select Item Highlighted Item Go to Sub menu Enter has a Service Information screen in case you need technical Select Option Space Bar Exte LESC Redraw Screen Ctrl L assistance from Patton g Save C
13. the middle of the screen Patton Electronics Menu Management Enter Password _ Type in the password and press lt Enter gt The factory default password for the unit is patton NOTE If the entry is incorrect the password screen will clear and prompt you again for the correct password The password you enter will not be shown For security asterisks will be dis played for each letter you type The maximum length of the password which can include any character the terminal can generate is 16 characters The NetLink T1 will then display the Main Menu screen 13 3 2 1 Introduction to Main Menu After entering the password you may access all of the system s functions and parameters The Main Menu looks like this Header Line 1 Header Line 2 gt Patton Electronics Main Menu enu Management System Configuration System Diagnostics Statistics Unit Options Highlighted tems NOTE Unsaved changes will be lost after this session ACTION Select Item Highlighted Item Redraw Screen Ctrl L Go to Sub menu Enter Model 2710 FT1 CSU gt _q _____ Commands and text entered here HELPFUL HINTS 1 To make a selection key the highlighted letter that corre sponds to a menu selection 2 To execute the selection type lt Enter CR gt 3 Select BJ Save Changes from Main Menu after making modi fications to any NetLink T1 parameter Otherwise changes will be lost when
14. 1 also supports a full range of system and diagnostic features that make system setup easy The NetLink T1 provides T1 terminations over a modular RJ 48C jack and comply with jitter tolerance capabilities as specified in ANSI T1 403 and AT amp T TR62411 External power options include 120VAC and Universal Interface 100 240VAC 2 3 SUPPORTED APPLICATIONS The NetLink T1 CSU DSU provides a T1 DS1 network termi nation between the service provider and customer premises equipment CPE such as a router The Netlink T1 can also be used as a high speed short haul modem for campus applications 2 3 1 The 2710 as the Interface between the Telco and CPE The NetLink T1 provides the interface between the service provider and customer equipment such as a router or switch See below Model 2710 Router j PET Dt LAN A 1 544Mbps or nx56 64 B 2 3 2 The 2710 as a High Speed Short Range Modem The NetLink T1 can also be installed into high speed campus applications In this application a pair of NetLink T1 units operate as short range modems See below NetLink T1
15. U receiving the signal relies on the signal to recover the 1 544 Mb s clock To get around this problem one method is to limit the data rate per channel known as a DSO because it is a 64 kb s portion of the DS1 frame or super frame to 56 kb s and forcing a pulse in the last data bit to ensure a minimum pulse density in the signal If you must use AMI with a DSO data rate of 64 kb s you should ensure that the data terminal equipment connected to the unit provides a minimally acceptable pulse density For this reason there are advantages to using B8ZS instead 17 B8ZS Bipolar violations occur when consecutive pulses are of the same polarity In B8ZS or Bipolar Eight Zero Substitution bipolar violations are introduced deliberately to indicate that eight zeros have been transmitted This special encoding is recognized by the receiver and decoded correctly See AT amp T TR62411 Section 4 2 2 for a detailed description of B8ZS This enables information to be sent over a T1 connection without any constraints on the data s pulse density This is the most acceptable way to accomplish 64 kb s on each DSO channel B7ZS This stands for Bipolar Seven Zero Substitution Instead of introducing bipolar violations this method substitutes a one for a zero in bit 7 out of 8 of a DSO channel when the data in that channel are all zeros This is a special form of AMI and is compatible only with special equipment For most applica tions AMI or B8ZS
16. USER MANUAL MODEL 2710 Series NetLink T1 T1 Fractional T1 CSU DSU Ps PATTON E FlectronicsTo ISO Part 07M2710 SALES OFFICE J Doc 08604U2 001 301 975 1000 Rov TECHNICAL SUPPORT RTIFIED Revised 06 19 06 301 975 1007 An ISO 9001 http www patton com Certified Company TABLE OF CONTENTS Section Page 1 0 General INFOMMALHON sissemaks nn 2 1 1 Warranty Statement 1 2 CE Notice 1 3 Radio and TV Interference 1 4 FCC Information 1 4 1 FCC Compliance 1 5 Industry Canada Notice 1 6 Service Information 2 0 General Information ccccccccccscccccceccceeeeeeececseseeeeeessersrenanes 6 2 1 Features 2 2 General Product Description 2 3 Supported Applications 2 3 1 The 2710 as the Interface Between the Telco and CPE 2 3 2 The 2170 as High Speed Short Range Modem 3 0 COMPQUPATION 255 sec sesteee es eieae a eea aeaa nesdinesastaeceeeases 8 3 1 DIP Switch Configuration 3 2 Software Configuration 3 2 1 Introduction to Main Menu 3 2 2 System Configuration 3 2 3 Systems Diagnostics 3 2 4 Unit Options 4 0 lnstallationi ryeni ine n e E Naess 31 4 1 DTE Interface Connection 4 2 Network Interface Connection 4 3 Power Connection 4 3 1 Using the AC Power Supply 120VAC or 100 240VAC 4 3 2 Supplying DC Power 4 3 3 Supplying Power via Pin KK 5 0 Operatii stseen ennau Ea Anaa 33 5 1 LED Descriptions 5 2 Loop V 54 amp Telco Diagnostics 5 2 1 Operating Local Loopback LL 5 2 2 Operati
17. able to send or respond to V 54 loopback commands The duration of the loopback is limited by the loopback timeout setting Ej Default Config Source EEPROM Option EEPROM Switch The NetLink T1 can be initialized via the configuration in the on board permanent memory EEPROM or via the internal DIP switches Switch Once the unit is powered up you may change the settings through the control port or the DIP switches If you do not have a terminal you may force the unit to use the DIP switches as the default configuration source by turning off the unit setting all the DIP switches to the ON position then powering on the unit 21 fi DSO Channel Configuration Menu Bandwidth Channels 1 536 24 default The DSO Channel Configuration Menu has a sub menu that looks like this Patton Electronics Display Bandwidth Allocation Menu Management beeen On Hees On E On ay On On wm On On 2 On Indicates Ch 24 is ON Bandwidth Selected 1 536k Total Channels ACTION Total Bandwidth Letter of DSO channel channels ON Select Item Highlighted Item Redraw Screen Ctrl 1 Change Option Space Bar Exit Esc Model 2710 FTL co ae Commands and text entered here You may configure the NetLink T1 to operate with any combina tion of active and inactive DSO channels in this screen When you exe cute the Save Changes command the selected settings will be saved to permanent memory and the s
18. ccordance with FCC rules and regulation CFR 47 68 218 b 6 the user must notify the telephone company prior to disconnection The Universal Service Order Code USOC is RJ48 The Facility Interface Codes FIC are 04DU9 BN 04DU9 DN 04DU9 1KN and 04DU9 1SN The Service Order Code SOC is 6 0N 1 5 INDUSTRY CANADA NOTICE The Canadian Department of Communications label identifies cer tified equipment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is per missible to be connected to the facilities of the local telecommunica tions company The equipment must also be installed using an accept able method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly telephone extension cord The customer should be aware that compliance with the above condition may not prevent degradation of service in some situations Repairs to some certified equipment should be made by an authorized maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment mal functions may give the telecommunications company cause to request the user to disconn
19. cebar gt to send the test pattern The OK message indicates the received test pattern is error free The BE message indicates errors in the received pat tern Idle Indicates that NetLink T1 is not sending a pattern Sending Indicates that NetLink T1 is sending a pattern d Error Insertion Off default Options On Off You may inject intentional errors into the test pattern by turning Error Insertion ON The Error ERR LED will blink once per second O Selected Pattern Options QRSS 511 or 2047 Use this option to select the test pattern used to test the link 25 NI STATUS The Network interface NI status is shown in NI STATUS the middle of the Diagnostics Statistics EZZ screen The brackets are empty when the link FE SE is operating normally In this example various LOS OOF two or three letter messages are displayed E JE within the brackets illustrating what you may see if the NetLink T1 is not connected at all or is in a loss of signal condition Here are the eight status messages Rx Level dB lt 22 5 Excessive zeros EXZ i e lack of pulses detected This condition may occur if the unit is not connected to the network in which case the EXZ is displayed continuously If EXZ comes on intermittently there may be a frame line code or data rate mismatch between the near and far end units Receiver Carrier Loss RCL occurs when 192 consecutive zeros have been dete
20. cted at the network interface RCL clears when a pulse is detected Frame Bit Error FE occurs when there is an error in the framing bit sequence This may happen due to a disconnected line mismatched framing formats or severe errors in the data stream This error may indicate a noisy line or cable condition This error may indicate a noisy line or cable connection if the frames appear to be set correctly Severe Frame Error SE occurs when the framing error exceeds a certain threshold of errors This may happen due to a disconnected line an extremely noisy connection or mismatched framing Loss of Sync LOS occurs when the T1 framer in the unit cannot synchronize itself to the received data stream This may happen due to a disconnected line Out of Frame OOF occurs when no valid frame structure can be found This may happen due to a disconnected line or mismatched framing or mismatched framing Alarm Indication Signal AIS indicates that the remote unit or the central office is sending a Blue Alarm because it is not receiving a sig nal the alarm is an unframed all ones signal mainly used to keep the line alive and to indicate that it is not receiving any signal This may indicate that the local unit is receiving a good signal but that the trans mit link may be broken 26 Receive Alarm Indication RAI indicates that the local unit is receiv ing a Yellow Alarm This alarm is sent by the remote unit or the central office w
21. e these diagnostics to test the CSU DSU and any communication links These tests can be acti vated via the software control port See Section 3 2 3 System Diagnostics or via signals on the serial port interface 5 2 1 Operating Local Loopback LL The Local Loopback LL test checks the operation of the local NetLink T1 and is performed separately on each unit Any data sent to the local NetLink T1 in this test mode will be echoed returned back to the user device i e characters typed on the keyboard of a ter minal will appear on the terminal screen To perform a LL test follow these steps 1 Activate LL This may be done in one of two ways a Enter E Local Loop from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until LL appears next to the E Local Loop option b Activate the LL signal on the DTE If you are not sure which lead is the LL signal please refer to Appendix D 2 Verify that the data terminal equipment is operating properly and can be used for a test 3 Perform a V 52 BER bit error rate test as described in Section 5 3 3 If the BER test equipment indicates no faults but the data terminal indicates a fault follow the manufactur er s checkout procedures for the data terminal Also check the interface cable between the terminal and the NetLink T1i 5 2 2 Operating Remote Digital Loopback RL The Remote Digital Loopback RL test checks the per
22. ect the equipment Users should ensure for their own protection that the ground con nections of the power utility telephone lines and internal metallic water pipe system are connected together This protection may be particularly important in rural areas CAUTION Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate 1 6 SERVICE INFORMATION All warranty and non warranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Support at tel 301 975 1007 email support patton com www http www patton com NOTE Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Patton Model 2710 Technical Services hours 8AM to 5PM EST Monday through Friday 2 0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions arise during installa tion or use of the unit contact Patton Electronics Technical Services at 301 975 1007 2 1 FEATURES e Termina
23. ectronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages aris ing from the use of or inability to use this product Patton Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user In the event the user detects intermittent or continuous product malfunction due to nearby high power transmitting radio frequency equipment the user is strongly advised to use only data cables with an external outer shield bonded to a metal or metal ized connector 1 2 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive and the Low Voltage Directive LVD of the Union European EU A Certificate of Compliance is available by contacting Patton Technical Support WARNING This device is not intended to be con nected to the public telephone network in Europe 1 3 RADIO AND TV INTERFERENCE The NetLink T1 Model 2710 Series generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 2710 Series has been tested and found to comply with the lim
24. formance of both the local and remote NetLink T1 as well as the communication link between them Any characters sent to the remote NetLink T1 in this test mode will be returned back to the originating device i e char acters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote NetLink T1 and looped back 35 To perform an RDL test follow these steps 1 Activate RDL This may be done in two ways a Enter b Remote Loop from the System Diagnostics Statistics menu and toggle the lt Spacebar gt until RL appears next to the B Remote Loop option b Activate the RL signal on the DTE If you are not sure which lead is the RL signal please refer to Appendix D 2 Perform a bit error rate test BERT using the internal V 52 generator as described in Section 5 3 or using a separate BER Tester If the BER test indicates a fault and the Local Line Loopback test was successful for both NetLink s you may have a problem with the twisted pair line connection 5 2 3 Central Office Loops The NetLink T1 also responds to central office initiated loop com mands When in D4 framing mode the NetLink T1 will implement the loop up command when it recognizes the pattern 10000 in the data stream for a minimum of 5 seconds The loop down command is implemented by the pattern 100 in the data stream for a minimum of 5
25. hanges Once you have configured the unit to your Model 2710 FT1 CSU gt _ commands and text entered rere satisfaction you can save the changes permanently by exe cuting the Save Changes command This will update the unit s configuration and save all the parameters to permanent mem ory The System Configuration options are described below g Logoff For security log off the control menu by executing the Logoff command This will blank the screen until an Enter key is pressed E Line Format ESF default Options ESF D4 UNFRAMED D4 This is an older but widely used line format that does not provide FDL so network interface performance cannot be monitored so easily AT amp T TR 62411 contains the specifica tions for this format and the ESF D4 is also known as Superframe format According to TR 62411 The Superframe format consists of 12 frames of 193 bits each for a total of 2316 bits Each 193 bit frame consists of 192 bits preceded by one framing bit the framing bit is time shared to both synchronize the terminal equipment and to identify the signal ing frames Sec 4 1 1 15 16 ESF This stands for Extended Superframe Format a line format developed by AT amp T AT amp T Technical Reference 54016 TR 54016 defines the ESF a format which is commonly used to allow monitoring of the network interface performance over the Facility Data Link FDL AT amp T TR 62411 says the Extended
26. he telephone network Whenever possible they will contact you in advance If you elect to do so you have the right to file a complaint with the FCC If you have any trouble operating the Model 2710 Series please contact Patton Technical Support at 301 975 1007 The telephone company may ask you to disconnect the equipment from the tele phone network until the problem has been corrected or until you are certain that the Model 2710 Series is not malfunctioning The following information may be required when applying to your local telephone company for leased line facilities Facility Interface Service Network Service Code Connection 1 544 Mbps SF format without line power 04DU9 BN 1 544 Mbps SF and B8ZS without line power 04DU9 DN 1 544 Mbps ANSI ESF without line power 04DU9 1KN 1 544 Mbps ANSI ESF and B8ZS w o line power 04DU9 1SN 1 4 1 FCC Compliance The Model 2710 has been tested and found to comply with the specifications found in Part 68 of the FCC rules and regulations A label on the equipment bears the FCC registration number You may be requested to provide this information to your telephone company The telephone company may decide to temporarily discontinue your service if they believe that the Model 2710 may cause harm to the telephone network Whenever possible the telephone company will attempt to notify you in advance You have a right if you so choose to file a complaint with the FCC In a
27. hen it loses the received signal This indicates the local unit s transmitted signal is not reaching the remote unit Rx Level The Model 2710 displays the current received signal strength in dB There are four level ranges detected 2 to 7 5 7 5 to 15 15 to 22 5 lt 22 5 Valid Interval Count amp Current Interval Time The Valid Interval Count and Current Interval Time display the number of valid 15 minute intervals in the last 24 hours and the num ber of seconds which have elapsed in the current interval respectively The Valid Interval Count saturates at the count of 96 96 15min 24 hours while the Current Interval Time rolls over after 900 counts When the counter rolls over it is reset to zero and the Interval Counter is incremented by one if the count is less than 96 Valid Interval Count 96 Current Interval Time 899 Error Counters These error counters give a second by second snapshot of the link performance To clear all counters press the Backspace key If your keyboard does not have this key you can press a two key combi nation to affect the same result Hold down the Ctrl key and then press the H key This will send to the unit the Ctrl H character which is the same as pressing the Backspace key ERR SEC Errored Seconds in Current Interval UAS SEC Unavailable Seconds SE SEC Severely Errored Seconds BE SEC Bursty Errored Seconds LOF SEC Loss of Frame Error Seconds 27
28. indicates the presence of a Blue or Yellow Alarm or Out of Frame con dition The ALM LED will blink on every half second Alarms may occur due to e Loss of Synchronization e Loss of Frame e AIS Blue Alarm e RAI Yellow Alarm The error LED indicates various error condi tions including framing bit errors excessive zeros controlled slips severe errors or bit errors when sending V 52 test patterns When sending a test pattern the LED will remain lit if the unit does not receive the identical pattern When it receives the cor rect pattern the LED will turn off If error insertion is on the LED will blink once a second if everything is operating properly The test indicator LED blinks with a specific pattern depending on the type of test mode When the unit is in local analog loop the LED will blink on briefly When the unit is in remote loop the TST LED will blink off briefly When the unit is sending a test pat tern or is putting the remote unit into V 54 loopback the TST LED will stay on These are the test modes e V 54 Loopback amp V 52 Patterns e D4 Line Loop CO initiated e ESF Line Loop CO Initiated e ESF Payload Loop CO Initiated The power indicator LED will remain lit while the unit is powered It turns off when the unit is not powered 34 5 2 LOOP V 54 amp TELCO DIAGNOSTICS The NetLink T1 offers three V 54 loop diagnostics and is com patible with two Telco loop diagnostics Us
29. ique name via the header lines to help distinguish one unit from another You can enter a header up to 40 letters long Two lines provide 80 letters for your use That s a lot of flexibility J Password The Password facility provides security by allowing only those who know the correct password to configure the unit via the control port You can still configure the unit via the DIP switches The password can be up to 16 characters long with no restriction on the combination of characters you can use so be sure to remember the password If you lose your password you will lose the ability to access the unit via the control port 29 Loop Timeout The Loop Timeout setting can be set to one of the following 00 05 five minutes 00 10 ten minutes 00 15 fifteen minutes 00 30 thirty minutes default setting 00 45 forty five minutes 01 00 one hour 01 30 90 minutes 02 00 two hours 03 00 three hours NEVER _ forever the unit will remain in loopback without user intervention GJ Set to Default Configuration You may set the NetLink T1 to its factory default configuration except for the header lines and the password by executing the Set to Default Configuration command O Service Information If you need to contact us for help you can view the Service Information screen Here is what it looks like Patton Electronics Service Information Henu Management Firmware Revision 1 0a C
30. its for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable pro tection from such interference in a commercial installation However there is no guarantee that interference will not occur in a particular installation If the Model 2710 Series does cause interference to radio or television reception which can be determined by disconnecting the cables the user is encouraged to try to correct the interference by one or more of the following measures moving the computing equipment away from the receiver re orienting the receiving antenna and or plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches 1 4 FCC INFORMATION The Model 2710 Series has been tested and registered in com pliance with the specifications in Part 68 of the FCC rules A label on the equipment bears the FCC registration number You may be requested to provide this information to your telephone company Your telephone company may make changes in its facilities equipment operations or procedures that could affect the proper oper ation of the Model 2710 Series If this happens the telephone com pany should give you advance notice to prevent the interruption of your service The telephone company may decide to temporarily discontinue your service if they believe your Model 2710 Series may cause harm to t
31. minimum Jumper Position for Power via Pin KK NOTE NetLink T1 is factory configured to accept power from the enclosed DC wall adapter See Sections 4 3 1 and 4 3 2 above If you wish to supply power via pin KK on the interface you must change the setting of the power supply jumper on the printed circuit board All power sources must be SELV Circuit Safety Extra Low Voltage specified See CENELEC EN60950 Section 1 2 8 5 43 Copyright 2006 Patton Electronics Company All Rights Reserved
32. ng Remote Digital Loopback RL 5 2 3 Central Office Loops 5 3 Bit Error Rate V 52 Diagnostics Appendix A Specifications eeececeeeceeeseeteeeeeeeeeeeeeeeeeeenaas 38 Appendix B Cable Recommendations 0 c eee eee 39 Appendix C Factory Replacement Parts and Accessories 40 Appendix D Interface Pin Assignment eseeeseeeeeneeeeees 41 Appendix E Power Supply Interface cceseeeceeeeeeteeeeeeeees 43 1 1 0 GENERAL INFORMATION Thank you for your purchase of this Patton Electronics product This product has been thoroughly inspected and tested and is warrant ed for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to con tact Patton Electronics Technical Services at 301 975 1007 1 1 WARRANTY STATEMENT Patton Electronics warrants all Model 2710 Series components to be free from defects and will at our option repair or replace the product should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materi als and does not cover customer damage abuse or unauthorized modification This product contains no serviceable parts therefore the user shall not attempt to modify the unit in any way If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall Patton El
33. performance tested by Patton Model Description Patton technicians using twisted pair cable with the following charac teristics 2710 CM 120 0000 T1 Nx64 CSU DSU M 34 Male 120VAC 2710 CM UL 0eceeeeeeeees T1 CSU DSU V 35 M 34 Male Ul Wire Gauge Capacitance Resistance WO OOF enri 6 Foot Control Port Cable 25 mm to DB9F 19 AWG 83nf mi or 15 72 pf ft 0163 Ohms ft O7M2710 issiria User Manual 22 AWG 83nf mi or 15 72 pf ft 0326 Ohms ft 24 AWG 83nf mi or 15 72 pf ft 05165 Ohms ft To gain optimum performance from the Model 2710 Series please keep the following guidelines in mind e Always use twisted pair wire this is not an option e Use twisted pair wire with a capacitance of 20pf ft or less e Avoid twisted pair wire thinner than 26 AWG i e avoid AWG numbers higher than 26 e Use of twisted pair with a resistance greater than the above specifications may cause a reduction in maximum distance obtain able Functionality should not be affected e Many environmental factors can affect the maximum distance obtainable at a particular site 39 40 5 OAN Pin Tx Data Rx Data Sleeve APPENDIX D PATTON NETLINK T1 MODEL 2710 INTERFACE PIN ASSIGNMENT RJ 48C T1 DS0 Network Interface Female Modular Jack Signal RX Data RING From Network RX Data TIP TX Data RING ToN k TX Data TIP To Networ TRS Jack RS 232 Control Port Signal Source From Model 2710
34. se use a DB 9 to DB 25 Adapter to connect to the cable See Model 18PC M Switches SW7 and SW8 Line Build Out 2 Power up the terminal and set its RS 232 port as follows Use Switches SW7 and SW8 to set the Line Build Out LBO The Line Build Out varies the pulse shape and attenuation of the signal 9600 Baud sent to the network The amount of Line Build Out depends on 8 data bits 1 stop bit no parity NetLink T1 s distance to the last repeater The telephone company Local echo off providing the service will advise on the amount of LBO necessary ANSI or VT 100 emulation SW6 SWZ Function 3 Here is an example of a terminal emulator setup session In Off Off 0 133 ft OdB normal font are the various parameter types In bold type are On Off 7 5dB the values that should be used for best results Your terminal Off On 15 0dB program s setup screen may differ from this one On On 22 5dB Baud rate 9600 Parity None Data Length 8 Stop Bits 1 Default terminal type VT100 Local Echo Off Add Line Feeds after CRs Off Received Backspace Destructive On Backspace key sends BS XON XOFF software flow control On CTS RTS hardware flow control Off DSR DTR hardware flow control Off 11 12 4 7 When the unit is first turned on the terminal screen may appear blank Press the lt Enter gt key If your serial connection is good then the unit will immediately display a password prompt The following message will appear in
35. t connected to the public telephone network directly In this mode the unit uses the on board oscillator as the transmit clock source External This is a special mode that should only be used with the Unframed format In this mode the unit requires a 1 544 Mhz clock signal from the DTE via the external clock pin on the DTE interface connector Most applications will use Network or Internal clock modes O Line Build Out dB 0 133 feet 0 dB default Options 0 133 feet 0 dB 133 266 feet 266 399 feet 399 533 feet 533 655 feet 7 5 dB 15 0 dB 22 5 dB This controls the transmitter signal strength and pulse shape For most applications the default setting will suffice When connecting to a carrier connection the carrier will determine what LBO is necessary 0 dB provides the highest signal strength and therefore the longest dis tance while 15 0 dB provides the lowest usable signal strength The last setting 22 5 dB is usually only used to test the line and should not be used in normal applications 19 ESF Data Link ANSI T1 403 Options ANSI T1 403 AT amp T TR54016 ANSI T1 403 This ANSI developed standard see ANSI T1 403 1995 Network to Customer Installation DS1 Metallic Interface uses the FDL to send and receive one second Performance Report Messages PRMs The messages con tain the NI performance over the last four seconds Thus up to three consecutive messages may be lost withou
36. t loss of information It is available only with ESF When ANSI T1 403 is selected requests to send AT amp T performance reports ref AT amp T TR 54016 are ignored AT amp T TR54016 Developed by AT amp T this FDL method differs principally from the ANSI method in two ways First the ANSI method transmits messages continuously whereas the AT amp T method transmits a performance report only upon a request from the remote end for a report Second the AT amp T method provides a historical summary up to the last 24 hours of NI performance Only the service provider or special test equip ment can send these requests When AT amp T TR54016 is selected ANSI PRMs are still transmitted by the unit but only PRMs sent by the carrier will be recognized To receive PRMs from another customer unit i e in a campus application select ANSI T1 403 When the frame is not ESF the FDL is disabled H ESF Carrier Loops Enabled default Options Enabled Disabled The ESF format provides the CO the ability to put the customer installation s NetLink T1 into loopback mode The NetLink T1 rec ognizes these special messages that are sent over the FDL When enabled the unit will respond to these loopback commands and go into or out of loopback mode When disabled the unit will not respond although it still recognizes the loopback commands When in loopback the unit will remain in loopback until a loopback exit command is received or when the
37. tes T1 FT1 Circuits over a 4 Wire RJ 48C interface e Connects to standard CPE Serial Interfaces e Common Framed nx56 64 rates up to 1 536 Mbps e Unstructured Rates at 1 544 Mbps D4 or ESF Framing Modes e Supports AMI or B8ZS B7ZS Line Coding e Configuration via Software Control Port or Internal DIP Switches e Seven Easy to Read LED Indicators Monitor Data amp Diagnostics e Internal External or Receive Recover Clocking e Also Operates as a High Speed Point to Point Modem e Compact Size Plugs Directly into a Router Switch or other DTE e Made in USA 2 2 GENERAL PRODUCT DESCRIPTION The NetLink T1 Model 2710 Series are single port T1 FT1 CSU DSUs that provide high speed WAN connectivity in an ultra com pact housing Plugging directly into the V 35 WAN port of a switch router or multiplexer the NetLink T1 provides T1 or FT1 access at connection at data rates of 1 544 Mbps nx64 and nx56 n 1 to 24 channels The Netlink T1 is an excellent choice when terminating leased line services Frame Relay backbones internet access as well as LAN to LAN services The Netlink T1 provides digital access to a local WAN service provider or directly between two facilities over a dedicated 4 Wire cir cuit LAN bandwidth framing and coding options are programmed via internally accessible DIP switches or via a rear mounted EIA 232 con trol port The Netlink T1 supports D4 ESF framing options and AMI B8ZS B7ZS line coding Netlink T
38. time slot can be reduced to 56 kbps and the Least Significant Bit LSB of each time slot set to one Bipolar 8 Zero Substitution B8ZS This mode assures proper bit density in the data stream In this mode any data pattern can be transmitted without causing ones density errors This mode allows for 64 kbps clear channel timeslots Switch SW5 DSO Channel Rate Use Switch SW5 to set the DSO rate SW5 Setting Off 56 kbps On 64 kbps Switch SW6 Clock Mode 3 2 SOFTWARE CONFIGURATION Set Switch SW6 to determine the 2710 s transmitter timing The NetLink T1 features a menu driven command system that allows you to monitor configure its operating parameters Follow the SW6 Clock Mode instructions below to configure the Model 2710 using the software Off Network Clock Transmitter timing is switches derived from the received line signal On Internal Clock Transmitter clock is 1 Plug the 9 pin male end of the cable to your terminal or com derived from an internal oscillator puter s DB 9 serial port and start up the terminal emulator software if necessary Plug the miniature stereo plug into the NOTE When using the Model 2710 as a high speed short range rear of the unit The small recessed jack on the right side of modem one unit of the link must be configured in Internal Clock the unit is the control port jack mode and the opposite end unit must be configured for Network Clock mode NOTE If your terminal uses a DB 25 connector plea
39. ting before entering the Remote Loopback test mode TM The NetLink T1 has successfully negotiated the Remote Loopback test and is in control of the remote unit You may send a test pattern at this point by press ing c lt spacebar gt TxTr The NetLink T1 is sending a Terminate Loopback mes sage to the remote unit If the remote unit does not respond the local unit will return to the Idle state Txis Ifthe remote NetLink T1 responds to the local NetLink T1 s terminate loopback request the local unit then sends an all ones pattern before returning to the Idle state TxP The NetLink T1 is sending a test pattern while in Test Mode IdIP The NetLink T1 is sending a test pattern in place of data The NetLink T1 is not in test mode 24 The NetLink T1 receiving a RL can be in one of the following states RxPr The NetLink T1 is receiving a preparatory pattern Sack The NetLink T1 upon receiving a preparatory pattern sends an acknowledgement message RL The NetLink T1 is in remote loopback mode RxTr The NetLink T1 is receiving a terminate loopback mes sage Wtis The NetLink T1 is waiting for a sequence of all ones and will time out if it does not receive it IdleP The NetLink T1 is sending a QRSS 511 or 2047 pat tern Off The NetLink T1 is in local loopback Test Pattern Idle default Options Idle or Sending To send a pattern press the c key and press lt spa
40. ustomer Support Tel 301 975 1000 Patton Electronics Customer Service Department Fax 301 569 9293 7622 Rickenbacker Drive Gaithersburg MD 20879 Web http www patton com USA Email support parttor com ACTION Exit Esc Redraw Screen Ctr1l L Model 2710 FT1 CaU gt 30 4 0 INSTALLATION The NetLink T1 is equipped with DTE network and power interfaces This section briefly describes connection to each 4 1 DTE INTERFACE CONNECTION The DTE interface is a V 35 DCE presented as an M 34 male con nector This interface is designed to plug directly into a DTE interface See Appendix D for V 35 interface pin assignments 4 2 NETWORK INTERFACE CONNECTION The Network Line Interface is an eight position keyed modular jack configured as a RJ 48C This interface will need to be configured to match the line parameters i e framing line coding etc supplied by the central office RI 4BC Jak Signal Name 1 RX Receive Ring 1 lt 9 RX Receive Tip id Shield 1 4 TX Transmit Ring 5 gt 5 TX Transmit Tip 6 6 J Shield 7 7 No connection Pan i 8 8 No connection Figure 3 NetLink T1 twisted pair line interface NOTE If the NetLink T1 is being used for private short range modem applications the twisted pair cable connected to its port will need to be a cross over cable See Appendix D for Interface pin assignments 4 3 POWER CONNECTION
41. will suffice DSO Line Rate 64kbps default Options 64kbps 56kbps 64kbps Also known as Clear Channel this takes full advantage of the available bandwidth in a DSO channel Implementing it usually requires B8ZS line coding In certain cases special equipment may implement Clear Channel using AMI or B7ZS Consult the equipment manual for compatibility Your carrier will advise you on whether to use 64 or 56 kb s Campus applications may not have such restrictions enabling you to use 64kbps In Unframed format the 24 DSOs and the fram ing bits are combined to provide 1 544Mb s for your use 56kbps This uses only the first seven bits of the DSO limiting the data rate per DSO channel to 56 kb s Your carrier will advise you on whether to use 64 or 56 kb s This is not available when using the Unframed format 18 d Clocking Network default Options Network Internal External Network This is the most commonly used setting when connect ing to a carrier s network In this mode the unit recovers the clock from the received signal and uses it to transmit data In this way the unit remains synchronized to a master clock In campus applications one of the units must be set to Internal clock and the other end is set to Network clock At all times there must be only one clock source Otherwise clock slips and framing errors and bit errors may occur Internal This is commonly used in campus applications where the unit is no
42. ystem will be updated to operate with the new channel settings NOTE In Unframed format the Bandwidth Selected will display 1 544k and the Total Channels will display n a When the DSO Channel Rate is 56kbps the Bandwidth Selected will be a multiple of 56k not of 64k When using the DIP switches to set the band width the starting channel is always channel 1 22 3 2 3 System Diagnostics The System Diagnostics Statistics screen looks like this 15 min increments and of seconds Patton Electronics in currert interval System Diagnostics Statistics Menu Management El Local Loop Idle NI STATUS ESF Current amp 24 Hour Data J Remote Loop Idle EXZ wW Test Pattern Idle OK FE SE Valid Intervals Cout 96 e Error Insertion Off LOS OOF Current Interval Time 557 3 Selected Pattern ORSS ji ai th J Switch 1 Current 24 Hour Rx Level dB lt 22 5 SEC DIP Sw setting SEC Error Counts SEC Link status display SEC indicates the cable PRM 00010000000300023289 may not be connected ACTION Select Item Highlighted Item Change Options Space Bar Exit Esc Redraw Screen Ctr1l L Clear ESF Stats Ctrl H or Backspace Model 2710 FTL CSU gt _ Commands and text entered here Received ANSI performance report message PRM ESF only NOTE This screen is updated once per second The System Diagnostics
Download Pdf Manuals
Related Search