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61223445L1-5D

239 H4R Installation and Maintenance Practice

Training

ADTRAN offers training courses on our products. These courses include overviews on product 
features and functions while covering applications of ADTRAN’s product lines. ADTRAN 
provides a variety of training options, including customized training and course taught at our facil-
ities or at customer sites. For more information about training, please contact us.

Training Phone: 

800-615-1176, ext. 7500

Training Fax: 

256-963-6700

Training Email:

[email protected]

Summary of Contents for 239 T1 HDSL4

Page 1: ...239 T1 HDSL4 Repeater H4R Installation and Maintenance Practice Part Number 61223445L1 5D 239 H4R 1223445L1 LP1 NET LP2 LP1 LP2 LL RL Y G CUST CLEI T1R6U87D_ _ October 2004 ...

Page 2: ... of this publication are current as of the date of publication ADTRAN reserves the right to change the contents without prior notice In no event will ADTRAN be liable for any special incidental or consequential damages or for commercial losses even if ADTRAN has been advised thereof as a result of issue of this publi cation 901 Explorer Boulevard P O Box 140000 Huntsville AL 35814 4000 256 963 800...

Page 3: ... at the same time This font indicates references to other documentation and is also used for emphasis This font indicates on screen messages and prompts This font indicates text to be typed exactly as shown This font indicates silkscreen labels or other system label items This font is used for strong emphasis NOTE Notes inform the user of additional but essential information or features CAUTION Ca...

Page 4: ... features and functions while covering applications of ADTRAN s product lines ADTRAN provides a variety of training options including customized training and course taught at our facil ities or at customer sites For more information about training please contact us Training Phone 800 615 1176 ext 7500 Training Fax 256 963 6700 Training Email training adtran com ...

Page 5: ...0 Appendix A Warranty A 1 Warranty and Customer Service A 1 ADTRAN Sales A 1 ADTRAN Technical Support A 1 ADTRAN Repair CAPS A 1 Repair and Return Address A 1 Figures Figure 1 HDSL4 239 T1 HDSL4 Repeater H4R 1 Figure 2 Splice Results Screen 3 Tables Table 1 ADTRAN Unit Compatibility 4 Table 2 Compliance Codes 4 Table 3 H4R Card Edge Pin Assignments 6 Table 4 239 H4R Capacity Guidelines for ADTRAN ...

Page 6: ...vi 61223445L1 5D Tables 239 H4R Installation and Maintenance Practice This page is intentionally blank ...

Page 7: ...his 239 H4R performs signal regeneration to extend the range of the HDSL4 circuit The H4TU C Central Office Transceiver unit receives DSX 1 input signals from the network through the chassis transports them across the HDSL4 circuit and terminates them through an H4TU R remote unit which provides a traditional DS1 to customer equipment The H4TU C provides testing provisioning and performance monito...

Page 8: ...ion plant NOTE The Splice Detection Feature is included with this product as an aid to trouble shooting Due to inconsistency in environmental conditions and their effect on telecommunications plant ADTRAN cannot guarantee the accuracy of the measurements Comparison to existing engineering drawings should provide exact locations of suspect splices indicated by ADTRAN algorithms Splices that are var...

Page 9: ...e approximately 25 seconds during which AIS would be sent to the terminating equipment The reception of AIS by the terminating equipment then might trigger higher level protocol re synchronizations In an effort to minimize this down time the Fast Retrain feature has been implemented If an impairment bad splice for example causes the HDSL data pump to lose frame synchronization for 500 msec or long...

Page 10: ...egment DC resistance requirements be satisfied For a circuit requiring three H4Rs H4TU C and H4TU R hardware requirements segment attenuation and segment DC resistance requirements must all be satisfied Refer to the HDSL4 Deployment Guidelines on page 6 of this practice and the Installation and Maintenance Practice for the deployed H4TU C Compliance Table 2 shows the compliance codes for the 239 H...

Page 11: ...ts include the following items 239 T1 HDSL4 Repeater H4R 239 T1 HDSL4 Repeater H4R Job Aid CAUTION Electronic modules can be damaged by ESD When handling modules wear an antistatic discharge wrist strap to prevent damage to electronic components Place modules in antistatic packing material when transporting or storing When working on modules always place them on an approved antistatic mat that is ...

Page 12: ...loop parameters including attenuation and loop resistance considerations NOTE The H4TU C with part numbers 1221401L6 1221403L6 and 1221404L6 support only one H4R in the HDSL4 circuit Refer to the Detailed Status Screen by accessing the menus on the H4TU C craft terminal interface for current Signal to Noise Ratio Margin and Attenuation status indications for the circuit Table 3 H4R Card Edge Pin A...

Page 13: ... Housings Part Number Description CLEI Code Slots Stub H4R Capacity Recommended Slot Assignments Material Above Ground Below Ground Above Ground Below Ground 1150027L1 239 439 Housing DDMOABA1MA 4 Air 4 4 All All Stainless Polymer 1150027L2 239 439 Housing DDMOBBA1MA 4 Gel 4 4 All All Stainless Polymer 1150057L1 Universal Housing DDMODA01RA 4 Air 4 4 All All Stainless Steel 1150057L1 Universal Hou...

Page 14: ...irca Telecom HDSL 12B 760006 12 12 12 All All Stainless Steel Arris Lucent AT T Keptel Inter Link 809 RF809A3 XXX or RF809B3 XXX 12 8 N A 1 3 4 6 7 9 10 12 N A Polymer Arris Lucent AT T Keptel Inter Link 818 819 RF819A1 or RF819A2 RF819B1 or RF819B2 25 12 16 Chamber 1 1 4 7 8 11 14 Chamber 2 15 17 19 20 23 25 Chamber 1 1 3 5 7 8 10 12 14 Chamber 2 15 16 18 19 20 22 24 25 Polymer Arris Keptel Inter...

Page 15: ...ronized with a SNR margin of 0 dB and the attenuation is greater than the recommended Loop Attenuation Alarm Threshold LP1 LP2 CUST Off Solid Green 4 Fast Flashing Green 4 Slow Flashing Green Solid Yellow 4 Flashing Yellow Solid Red 4 Flashing Red No span power is present Synchronized with an Signal to Noise Ratio SNR margin greater than the recommended SNR Margin Alarm Threshold Flashing 3 times ...

Page 16: ... of the transceiver units utilized on the circuit Refer to the Installation and Maintenance Practice of the specific H4TU C or H4TU R for a list of loopback codes Performance monitoring diagnostics and loopbacks are also available from the craft interface at the H4TU C or H4TU R CAUTION When testing indicates a faulty H4R refer to the housing Installation and Mainte nance Practice for the entry an...

Page 17: ...00 HDSL4 Standard Issue 2 14 1 0 5 dBm 0 to 400 kHz 14 1 0 5 dBm 0 to 307 kHz 135 ohms Refer to HDSL4 Deployment Guidelines on page 6 12 dB 50 kHz to 200 kHz Power Tested with the ADTRAN H4TU R P N 1223426L1 and H4R P N 1223445L1 H4R Input Power 5 0 watts span powered by H4TU C Clock Clock Sources Internal Clock Accuracy DSX 1 Derived with HDSL4 frame bit stuffing 25 ppm Exceeds Stratum 4 Meets T1...

Page 18: ...12 61223445L1 5D Specifications 239 H4R Installation and Maintenance Practice This page is intentionally blank ...

Page 19: ...es support Customer and Product Service CAPS requests or further information ADTRAN Sales Pricing Availability 800 827 0807 ADTRAN Technical Support Pre Sales Applications Post Sales Technical Assistance 800 726 8663 Standard hours Monday Friday 7 a m 7 p m CST Emergency hours 7 days week 24 hours day ADTRAN Repair CAPS Return for Repair Upgrade 256 963 8722 Repair and Return Address Contact CAPS ...

Page 20: ...A 2 61223445L1 5D 239 H4R Installation and Maintenance Practice ...

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