Paradyne 7511 Network Card User Manual
Contents
1. Table 1 Configuration Options 5 of 5 Switch Options and Usage Default in Bold DSR ON OND Determines the operation of interchange circuit CT107 Data Set Ready l DSR S2 5 DSU A l Bien S4 DSU B z Off Standard gt DSR is always on except when an alarm is detected or a test is active 3 S4 oo oo ON Forced On I DSR is forced on after a successful self test mo a OSUB 1 E 0 oo O om 511 Test on OND Determines whether the DSU will generate and monitor a 511 test Pattern pattern in remote loopback tests Generation l SUR and Monitoring z Off Enable A 511 pattern is generated and monitored during the remote loopback S2 6 DSU A E test S4 6 DSU B On Rad l ON Disable DSUB A 511 pattern is not generated External test equipment is required to perform a Bit Error Rate test CT141 ON Determines whether a local digital loopback can be controlled by the s EE gt psua DTE using interchange circuit CT141 Local Loopback LL If enabled S5 1 DSU A EE psug the DTE port remains in loopback while LL is on S5 3 DSU B Off Disable The DSU will not initiate the loopback on command from the DTE ON Enable The DSU initiates the loopback CT140 ON Determines whether a remote digital loopback can be controlled by the amp mm SUA DTE2. Never install telephone wiring during a lightning storm Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Avoid using a telephone other than a cordless type during an electrical storm There may be a remote risk of electric shock from lightning Do not use the telephone to report a gas leak in the vicinity of the leak A WARNING This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense The authority to operate this equipment is conditioned by the requirements that no modifications will be made to the equipment unless the changes or modifications are expressly approved by Paradyne Corpo
3. Contact your service representative An Alarm LED is on DDS Mode The subscriber loop rate is not matched to the 7511 s configured rate No DDS Signal Verify the subscriber loop rate If the NS LED is lit Verify that the DSU is connected to the network Request a CSU loopback from your network service provider LADS mode The 7511 configured rate does not match its partner s rate Configure both units to the same rate Crossed pair connection LADS mode only If the RX leads are connected to each other the NS LED also will be on Check interface connections and cable One of several other alarm conditions exists Out of Service Out of Frame Bit errors detected during loopback test which also causes an Out of Frame condition If the OOS LED is lit Check the status of the remote DSU Initiate a Remote Loopback Try a different DSU with the same network connection If the problem persists contact your service representative January 1999 7511 A2 GN10 10 Symptom Possible Cause Recommendations Not receiving data DSU is not responding DDS line rate has changed Excessive BPVs Excessive loop loss 1 Verify that your subscriber loop is running at 56 kbps or 64 kbps CC 2 Run Loopback tests Refer to Chapter 4 Testing in the User s Guide 3 If network testing exposes excessive BPV
4. be performed by the user Should you experience difficulty with this equipment refer to Warranty Sales and Service Information For Digital Data Service DDS installations inform the local telephone company of the appropriate facility interface code for the service you desire DDS Facility Interface Code Data Rate 04DU5 56 56 Kbps 04DU5 64 64 Kbps The DDS Service Order Number is 6 0Y The jack configuration required is RJ48T Refer to Appendix B Technical Specifications in the User s Guide After the telephone company has installed the requested service and jack you can connect the DSU This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack that is Part 68 compliant Notice to Users of the Canadian Telephone Network 7511 A2 GN10 10 The Industry Canada label identifies certified equipment This certification means that the equipment meets telecommunications network protective operational and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document s The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection The January 1999 15
5. customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be coordinated by a representative designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution 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 The Ringer Equivalence Number REN assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5 If your equipment is in need of repair refer to the next section Warranty Sales and Service Information Contact your local sales representative service representative or distributor directly for any help needed For additional information concerning warr
6. the User s Guide Installing the Dual DSU Before you install your DSU read the Important Safety Instructions beginning on page 13 A HANDLING PRECAUTIONS FOR Configuring the DSUs STATIC SENSITIVE DEVICES The Model 7511 Dual DSU is designed to protect sensitive components from damage due to electrostatic discharge ESD during normal operation When performing installation procedures however take proper static control precautions to prevent damage to equipment If you are not sure of the proper static control precautions contact your nearest sales or service representative B gt Procedure To configure the Model 7511 Dual DSU 1 Review Table 1 to determine the proper settings for your environment The first choice for each option shown in boldface type is the factory default setting If you choose the factory default value you do not need to change the position of the associated switch Mark any options in the table that you wish to differ from the factory default Using Figure 1 and Table 1 verify that the switch settings of each DSU on the 7511 card match your selections Do not modify the settings of switches not listed in the table Any switch not designated for customer use should be in the Off position Where required verify that the local and remote DSUs employ the same options For example both the local and remote DSU must use the same Line Rate and 64CC Data Scrambler settings January
7. 1999 7511 A2 GN10 10 97 15396 Figure 1 Model 7511 Switch Locations Table 1 Configuration Options 1 of 5 Switch Options and Usage Default in Bold Line Rate ee DDS or LADS line rate I S1 1 DSU A I S3 1 DA B l psua Off 56 kbps The line rate is 56 kbps I S1 S2 3 S4 ON 64 kbps ON ON LADS The line rate is 64 kbps DDS The line rate is 64 kbps clear channel T T DSUB I I 7511 A2 GN10 10 January 1999 3 Table 1 Configuration Options 2 of 5 Switch Options and Usage Default in Bold TX Timing Source n gt one The timing source for the DSU 1 2 amp S1 3 DSU A S3 2 amp S3 3 DSU B psua OF Off DDS For DDS both switches must be Off S1 S2 a pate For LADS Off ON Receive psuB Receive means timing is derived from the line receive signal Se ON Off Internal Internal means timing is provided by the unit s internal clock ON ON External Extern
8. PARADY NE Model 7511 Dual DSU Startup Instructions Document Number 7511 A2 GN10 10 January 1999 Product Documentation on the World Wide Web We provide complete product documentation online This lets you search the documentation for specific topics and print only what you need reducing the waste of surplus printing It also helps us maintain competitive prices for our products Complete documentation for this product is available at www paradyne com Select Service amp Support gt Technical Manuals gt Subrate Digital Access Devices Select the following document 7511 A2 GB20 Model 7511 Dual DSU User s Guide To request a paper copy of a Paradyne document Within the U S A call 1 800 PARADYNE 1 800 727 2396 Outside the U S A call 1 727 530 8623 Preparation Make sure you have A clean well lit and ventilated site that is free from environmental extremes _ One to two feet of clearance for cable connections An operable network connection Package Checklist 7511 A2 GN10 10 Verify that your package contains the following _ A Model 7511 DSU _ A backplate bearing two 25 pin connectors Two V 35 adapter cables January 1999 Cables You May Need to Order You will need cables to connect your Network Interface Module NIM to the network and your 7511 DSUs to DTEs For further information refer to the documentation shipped with your NIM and Appendix A Cables and Pin Assignments in
9. able to each of the V 35 connectors on the rear connector plates Connect the other end of each cable to its respective DTE interface The top V 35 connector of each rear connector plate is for DSU A on the 7511 card in that slot The bottom V 35 connector is for DSU B 9 o ke o o o o co o ke o o ke te ke o te svi OAOA feces ro RJ48T j x RJ48T s S S DSUA lt DSU A P22 P21 n i DSU B B c gq De DSU B o A S o y aa Slots 9 16 Slots 1 8 97 15548 7511 A2 GN10 10 January 1999 11 Troubleshooting If the 7511 Dual DSU does not turn on the OK LED after its power up self test refer to the following table Symptom Possible Cause Recommendations No power or LEDs are not solidly lit The power supply to the carrier has failed The card is not seated properly If other devices in the carrier are functioning ensure that the card is completely seated in the rear connector plate and that the connector plate is tightly fastened to the carrier backplane Power up self test fails Only the Alarm LEDs are on after power up The DSU has detected an internal hardware failure Reset the card by pulling it slightly out of the carrier then replacing it
10. al means timing is provided by the DTE Ten Minute Test ON gt ONS Determines whether user initiated tests automatically terminate after Abort Timer 10 minutes m DSU A Hp DU a Off Enable Tests terminate automatically after 10 minutes 3 S4 t ll oo ON Disable Tests run indefinitely DSUB Network Initiated ON ONS Determines whether the DSU responds to DSU latching loopback start DSU Loopback and stop sequences sent by the network This option is applicable only if the DDS line rate is 64 kbps clear channel S1 5 DSU A m DSU A Sore DSU B Off Enable The DSU responds to loopback sequences ON on gt ON Disable DSUB The DSU ignores loopback sequences 4 January 1999 7511 A2 GN10 10 Table 1 Configuration Options 3 of 5 Switch Options and Usage Default in Bold 64CC Data Scrambler n gt on gt Determines whether the DSU scrambles data to minimize the possibility Te of the remote DSU falsely recognizing a loopback command S1 6 DSU A Ta SSiN 996 DSU B Off Disable 0 E Data scrambling is disabled 3 4 to oo ON Enable i l Da
11. anty sales service repair installation documentation training distributor locations or Paradyne worldwide office locations use one of the following methods Via the Internet Visit the Paradyne World Wide Web site at http www paradyne com Via Telephone Call our automated call system to receive current information via fax or to speak with a company representative Within the U S A call 1 800 870 2221 Outside the U S A call 1 727 530 2340 7511 A2 GN10 10 Copyright 1999 Paradyne Corporation 16 January 1999 7511 A2 GN10 10
12. elay except when an alarm is detected os e or a test is active when CTS is turned off ON ON mm OT Off ON Circuit Assurance Tm r 0su8 Same as standard but CTS is also turned off when Carrier Mode Idle EE codes are received REJ T4 ON Off Follow RTS CTS follows RTS without delay regardless of alarms and tests ONON Forced On CTS is forced on after a successful self test RTS ON ONS Determines the operation of interchange circuit CT105 Request to Send RTS S2 3 DSU A m S4 3 DSU B DSU A Off Constant The internal RTS is forced on and the DSU is in a constant data mode a The transmitted signal is either Data Mode Idle codes or DTE data ON ON gt ON Switched DSUB RTS is monitored and Carrier Mode Idle codes are transmitted when RTS is off LSD ON gt ONS Determines the operation of interchange circuit CT109 Line Signal Detect LSD S2 4 DSU A m IO EE DSU A 94 4 Poe E Off Standard O co i 0 LSD is on when the receive line is in data mode and off when an alarm 3 A is detected or Carrier Mode Idle codes are received oN gt ON gt i l ON Forced On i i DSUB LSD is forced on after a successful self test I j I 6 January 1999 7511 A2 GN10 10
13. nd to protect it from overheating these slots and openings must not be blocked or covered 3 Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord January 1999 13 Notices 14 Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous high voltage points or other risks Refer all servicing to qualified service personnel General purpose cables are provided with this product Special cables which may be required by the regulatory inspection authority for the installation site are the responsibility of the customer When installed in the final configuration the product must comply with the applicable Safety Standards and regulatory requirements of the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance Arare phenomenon can create a voltage potential between the earth grounds of two or more buildings If products installed in separate buildings are interconnected the voltage potential may cause a hazardous condition Consult a qualified electrical consultant to determine whether or not this phenomenon exists and if necessary implement corrective action prior to interconnecting the products In addition if the equipment is to be used with telecommunications circuits take the following precautions
14. ration A WARNING To Users of Digital Apparatus in Canada This Class A digital apparatus meets all requirements of the Canadian interference causing equipment regulations Cet appareil num rique de la classe A respecte toutes les exigences du r glement sur le mat rial brouilleur du Canada January 1999 7511 A2 GN10 10 Government Requirements Certain governments require that instructions pertaining to connection to the telephone network be included in the installation and operation manual Specific instructions are listed in the following sections Notice to Users of the Telephone Network in the United States This equipment complies with Part 68 of the FCC rules On the circuit board is a label that contains among other information the FCC registration number for this equipment If requested please provide this information to your telephone company If your DSU causes harm to the telephone network the telephone company may discontinue your service temporarily If possible they will notify you in advance But if advance notice is not practical you will be notified as soon as possible You will be advised of your right to file a complaint with the FCC Your telephone company may make changes in facilities equipment operations or procedures that could affect the proper operation of your equipment If so you will be given advance notice so as to give you an opportunity to maintain uninterrupted service No repairs may
15. s verify that you do not have a bad cable If the cable is good contact the network service provider 4 If network testing exposes excessive loop loss install a higher quality cable Refer to Appendix B Technical Specifications in the User s Guide The Test LED does not light up when you attempt to start a Remote Digital Loopback the RL LED turns off The remote unit failed to acknowledge the V 54 Loop Up command Check the remote unit If it has a V 54 Sequence Detection configuration option verify that it is enabled An LED is not lit LED is burned out While the DSUs are not in use cycle power to the card by pulling it slightly out of the carrier then replacing it If the LED in question does not flash with the other LEDs contact your service representative The Test Mode switch has no effect Switch S2 8 is ON Switch 2 8 is for Manufacturing use only and may affect the DSU s behavior Move Switch S2 8 to the Off position Unexpected behavior in general Switch settings are incorrect Ensure that switches on the circuit card are fully on or fully off as appropriate for your application A Important Safety Instructions 7511 A2 GN10 10 1 Read and follow all warning notices and instructions marked on the product or included in the manual 2 Slots and openings in the cabinet are provided for ventilation To ensure reliable operation of the product a
16. ta scrambling is enabled i DSU B n T V 54 Sequence N gt OND Determines whether the DSU responds to V 54 Loop Up and Loop Detection Down sequences from the remote DSU S1 7 DSU A DSUA Off Disable S3 7 DSU B V 54 loop sequences are ignored 3 S4 lla ON Enable E The DSU responds to V 54 loop sequences mo ma DSUB mn e G E E j Invert N gt ON gt Determines whether the DSU clock provided on interchange circuit TX Clock CT114 TXC is phase inverted with respect to interchange circuit CT103 TXD This can reduce errors encountered due to excessive S1 8 DSU A DSUA cable lengths S3 8 DSU B Ea s2 Off Normal 3 S4 7 ON ONS TXC is not inverted ELT Z E Iosus ON Invert taili TXC is inverted with respect to TXD m co 7511 A2 GN10 10 January 1999 5 Table 1 Configuration Options 4 of 5 Switch Options and Usage Default in Bold CTS ON gt ONS Determines the operation of interchange circuit CT106 Clear to Send CTS S2 1 amp S2 2 DSU A a Sa ee 2 DSU B Off Off Standard CTS follows RTS with a fixed d
17. uides 7511 A2 GN10 10 January 1999 10 8 31 811 AINIKIER WEEN Q AaS f FIRE Alia Q Glas S DESI amp Ai 2 N K lt A 495 14797 Slide the circuit card into the slot and press until the connectors are seated firmly into the back of the carrier lf power is applied to the carrier All LEDs on the card light up momentarily The card completes its power up self test The Alarm and OK LEDs are turned off or on depending on the test results Press the faceplate latch to secure the circuit card Rotate the circuit pack lock into the closed position and tighten the screw Return to the rear of the carrier and tighten the screw on the rear connector plate January 1999 7511 A2 GN10 10 Installing the Network and DTE Cables gt Procedure To install the cables 1 Note the location of the 7511 Dual DSU circuit cards in the carrier Slots 1 8 Slots 9 16 or all slots 2 Connect network cables to the appropriate NIM and backplane connector according to the following table Facing the rear of the carrier connect a 50 pin network cable to The NIM on the left side for DSU As on The NIM on the right side for DSU As on 7511 cards in Slots 9 16 7511 cards in Slots 1 8 Connector P22 for DSU Bs on 7511 Connector P21 for DSU Bs of 7511 cards cards in Slots 9 16 in Slots 1 8 3 Connect a DTE c
18. using interchange circuit CT140 Remote Loopback RL If S5 2 DSU A Ta gt DsuB enabled the remote DSU must be able to detect the in band V 54 S5 4 DSU B loopback sequence Off Disable The DSU will not initiate the loopback on command from the DTE ON Enable The DSU initiates the loopback 7511 A2 GN10 10 January 1999 7 Installing the Rear Connector Plate B gt Procedure To install the rear connector plate 1 At the rear of the carrier place the tab on the connector plate in its slot in the carrier s backplane The connector plate must use the same slot position intended for the DSU card 2 Loosely fasten the screw allowing for a slight adjustment when installing the DSU card 0 7 97 15484 25 Pin DTE Connectors Nas 8 January 1999 7511 A2 GN10 10 Installing the DSU Card gt Procedure To install the Model 7511 Dual DSU 1 Using a Phillips screwdriver loosen the screw holding the circuit pack lock Rotate the lock to the open position and open the latch Circuit Pack Lock Closed oo ar Lopag Guides Open Unlocked Latch 495 14813 2 At the front of the carrier hold the circuit card vertically with the latch on its faceplate in the open position Then insert the circuit card into the top and bottom circuit card g
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