ADTRAN T200 HDSL4 User's Manual
Contents
1. ACKS TX DSI signal from the DCP toward network nonintrusive RX DSI receive from the local loop nonintrusive POWER This specific unit is intended for Local Power Only If a Span Powered unit is required refer to P N 1223426L2 A local power supply is available from ADTRAN by ordering P N 1353 DSK48V04 COMPLIANCE This product is intended to be installed in Restricted Access Areas only and in equipment with a Type B or E enclosure Code Input Output Telecommunication Code TC This product meets all requirements of Bellcore GR 1089 CORE Class A2 ANSI T1 418 2002 This product is NRTL listed to the applicable UL standards WARNING Up to 200 VDC may be present on telecommunications wiring Ensure Chassis ground is properly connected JOBAID 61223424L2 22B 0505 CARD EDGE PINOUTS Pin Designation Description 48 VR 48 VDC Return 5 VDC for protection switching Chassis ground 48 VDC range 24 to 56 VDC 48 VDC nominal PROVISIONING OPTIONS Provisioning options are assumed from settings made at the H4TU C FEATURES TScan The ADTRAN T200 H4TU R incorporates the TScan feature TScan allows for remote retrieval of circuit diagnostics and performs advanced fault location For more information about TScan refer to the Installation and Maintenance practice Bad Splice Detection The Runtime TScan bad splice detection feature is an ADTRAN proprietary non intrusive method for detection2. ADRAN HDSL4 T200 H4TU R P N 1223424L2 CLEI T1L83Z3C_ _ HATUR 122342412 LOCAL DS1 ALM ESF SF YEL GRN B8ZS AMI YEL GRN LLB RLB YEL GRN L 2 22 Bk 223424 1 6 CAUTION SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY HANDLING PRECAUTIONS REQUIRED T200 HDSL4 Transceiver Unit Remote Local Powered FRONT PANEL LED STATUS DSL1 DSL2 Green Loop 1 Loop 2 synchronization achieved and signal is present No errors currently detected and SNR margin 3 dB Red Loop 1 Loop 2 synchronization not achieved in sync with errors or SNR margin lt 3 dB DS1 Green DS1 signal present and no errors currently detected Red No DSI signal or signal present with errors ALM O Off No active alarm present Yellow Loss of DSX 1 signal from the network Red Loss of DS1 signal from the customer CPE ESF SF O Off Unit is provisioned for UNFRAMED data Green Unit is provisioned for SF data Yellow Unit is provisioned for ESF data B8ZS AMI Green Unit is provisioned for AMI line code Yellow Unit is provisioned for B8ZS line code LLB RLB O Off No local loopbacks active Yellow Local loopback active Green Active loopback at the H4TU C toward the customer OPTIONS Front Panel Pushbuttons LOC Initiates a bidirectional loopback of the T200 H4TU R toward the network and customer REM Initiates a loopback at the H4TU C toward the customer DS1 MONITOR J
3. ERR Errors recorded at DSX 1 DS1 receiver ERR Errors recorded at the HDSL receiver HIST Performance History of the DSL units General Information Screen Available via the Troubleshooting screen a reference page which displays the minimum acceptable signal margin maximum attenuation and other deployment parameters for this HDSL4 circuit NOTE Along with the Troubleshooting screens the Detailed Status screen and Performance History screen available via the craft access terminal provide both real time and historical view of this circuit For complete deployment guidelines on the HDSL4 circuit refer to the Installation and Maintenance Practice referenced on the front page ATTENUATION LIMITS Recommended Maximum Segment Upstream Downstream 2nd and 31d segment 28 dB RANGE LIMITS PIC Cable 70 F Gauge Segment Recommended Maximum Tn three segment circuits two H4Rs individual segment resistance values must be verified Refer to the Installa tion and Maintenance Practice for details and calculations 2 When designing a dual H4R loop three segment the first segment should have lower DC resistance than the second segment LOOPBACK CONTROL CODES Requires Pattern Arming Description Z lin3 2in5 3in5 2in6 3in6 4in6 5in6 3in7 4in7 Loop down all units and disarm Arming Pattern H4TU R will loop up if Smartjack LB is enabled Disarm and loop down all units Restores LB TMO af
4. RT 800 726 8663 RETURN FOR REPAIR 256 963 8722 www adtran com 61223424L2 22B TROUBLESHOOTING HDSL4 This ADTRAN HDSL4 unit is equipped with troubleshooting at a glance LEDs identified on the reverse side of this document that provide customers with a simple means of identifying the location of certain faults Additionally screens available via the craft interface simplify the trouble isolation process These screens and their associated benefits are described below Troubleshooting Screen Available via the Main Menu provides ADTRAN contact information and access to the Troubleshooting Guidance and General Information screens Troubleshooting Guidance Screens Available via the Troubleshooting screen detects and displays errors and or alarms at any of the monitored inputs DSX1 DS1 and HDSL Guidance on the fault s detected includes possible cause s and suggested actions including those shown below DSX 1 DS1 Facility LOS Loss of signal Red Alarm at the DSX 1 DS1 GROUND Ground Fault on span facility pair grounded receiver SHORT Short circuit or low impedance between pairs CLK TI receive clock is out of range OPEN Open circuit between facility pairs RAI Remote Alarm Indication Yellow Alarm DSL detected at DSX 1 DS1 receiver LOS Loss of HDSL sync AIS Alarm Indication Signal Blue Alarm detected MARG Margin has exceeded the alarm threshold at DSX 1 DS1 receiver ATTEN Attenuation has exceeded the alarm threshold
5. of anomalies bad splices in the copper plant This feature non intrusively monitors the cable pair during runtime for the presence of bad splices which may potentially impact service Poor splices in the cable are often undetected by normal testing methods Often these splices present no problem for the data transmission equipment until the point at which oxidation with the splice itself causes a rapid impedance change Such a change in impedance may cause errors signal margin fluctuation and or a retrain of the DSL transceivers The splice detection feature is accessed from the Troubleshooting Screen via the craft access port Fast Retrain Fast Retrain is an ADTRAN proprietary feature that minimizes downtime due to an intermittent impairment which due to its duration cannot be bridged When such impairments occur the fast retrain feature will be invoked to restore service within 5 to 7 seconds instead of the traditional 25 to 30 second retrain duration NOTE Fast Retrain capable units must be installed on both ends of the circuit for this feature to function properly Also if there is a failure for any reason of a fast retrain attempt then the traditional 25 30 second retrain will be initiated For more information refer to the Installation and Maintenance Practice P N 61223HDSL4L2 5 available online at www adtran com ADRAN T200 HDSL4 Transceiver Unit Remote Local Powered PRICING AND AVAILABILITY 800 827 0807 TECH SUPPO
6. ter D5D6 H4R1 LB to Network H4R2 LB to Network H4R1 LB to Customer H4R2 LB to Customer H4TU R LB to Network H4TU C LB to Network 5in7 H4TU R LB to Customer 6in7 H4TU C LB to Customer No es Loop down H4TU C Repeaters all loopbacks Loop down H4TU R Cust LB always Will only No loop down H4TU R Network LB if NIU is disabled Does not disarm units if they are armed es Query Loopback Pattern error injection H4TU C 231 Errors H4R1 10 Errors No H4R2 200 Errors H4R3 30 errors H4TU R 20 Errors z Zi Z o RoR o fe za zZ A zZz emo Eom o Loopback Timeout Override Disables LB timeout Restores original LB timeout when unit is dis armed FDL Arming Pattern ESF only Arms all units H4TU R will LB to Network if NIU Enabled if pattern sources at network Z EEE Warranty ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service Warranty information can be found at www adtran com warranty
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