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®
239 T1 HDSL4 Repeater (H4R)
Installation and Maintenance Practice
Part Number - 61223445L1-5D
239 H4R
1223445L1
LP1
NET
LP2
LP1
CUST
LP2
LL RL
/
(Y) (G)
CLEI: T1R6U87D_ _
October 2004
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239 H4R Installation and Maintenance Practice Trademarks Any brand names and product names included in this manual are trademarks, registered trade- marks, or trade names of their respective holders. To the Holder of the Manual The contents 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 AD
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239 H4R Installation and Maintenance Practice Revision History Revision Date Description of Changes D October 2004 Updated to add Bad Splice Detect and Fast Retrain feature descriptions Conventions The following typographical conventions are used in this document: This font indicates a cross-reference link. First-time references to tables and figures are shown in this font. This font indicates screen menus, fields, and parameters. THIS FONT indicates keyboard keys (ENTER, ESC, ALT). Keys that
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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 ADTRANs 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
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Contents 1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Tables 239 H4R Installation and Maintenance Practice This page is intentionally blank. vi 61223445L1-5D
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239 T1 HDSL4 Repeater (H4R) 1. GENERAL ® This practice is an installation and maintenance guide for the ADTRAN 239 T1 HDSL4 Repeater (H4R) (239 H4R). Figure 1 illustrates the 239 H4R (P/N 1223445L1) front panel. 239 H4R 1223445L1 LP1 NET LP2 LP1 CUST LP2 LL RL / (Y) (G) Figure 1. HDSL4 239 T1 HDSL4 Repeater (H4R) 2. DESCRIPTION HDSL4 provides extended range T1 (DS1) transport on the telecommunications network. HDSL4 features spectral compatibility with ADSL and other transport technologies
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Description 239 H4R Installation and Maintenance Practice Features The basic features of the HDSL4 239 T1 HDSL4 Repeater (H4R), include the following: TC PAM line coding Lightning protection In-band loopback control Standard 239 form factor repeater apparatus case design Remote provisioning and pass-through performance monitoring Bad Splice Detection Fast Retrain Bad Splice Detection Feature TM This 239 H4R supports the Runtime TScan 2.0 bad splice detection feature, an ADTRAN prop
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239 H4R Installation and Maintenance Practice Description to that anomaly. This number will also reflect the highest anomaly count seen, as it is possible to have more than one bad splice per circuit. This screen will report the worst (most frequently detected) anomaly. In this example, a detection has occurred approximately 650 feet from an H4TU-C module on Loop 2 of the HDSL4 circuit. Circuit ID:HTSVALHDSL4 06/17/04 07:32:04 Pres
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Description 239 H4R Installation and Maintenance Practice Compatibility The 239 H4R is used in conjunction with any T1.418 compliant span powering H4TU-C and H4TU-R. Compatible ADTRAN HDSL4 transceiver units are listed in Table 1. Table 1. ADTRAN Unit Compatibility Part Number Unit Name 118141xLy Total Access 3000 H4TU-C 122x401Ly 220 H4TU-C 122x403Ly DDM+ H4TU-C 122x404Ly 3192 H4TU-C 122x407Ly Soneplex H4TU-C 122x424Ly T200 H4TU-R, Local Power 122x426Ly T200 H4TU-R, Span Power x = any generic
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239 H4R Installation and Maintenance Practice Installation This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by ADTRAN could void the users authority to operate this equipment. 3. INSTALLATION C A U T I O N ! SUBJECT TO ELECTROS
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Connections 239 H4R Installation and Maintenance Practice 4. CONNECTIONS All connections are made through card edge connectors. Table 3 provides the card edge pin assignments. CAUTION The H4R dissipates a maximum of 5.4 watts. NOTE Ensure that the chassis ground is securely connected to the apparatus case. Ground pin designations are defined in Table 3. Table 3. H4R Card Edge Pin Assignments Pin Designation Description 1 GND Ground 2 NC No Connect 3 T1 Customer Loop 1 Tip 4 R1 Customer Loop 1
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239 T1 HDSL4 Repeater (H4R) Installation and Maintenance Practice H4R Capacity Guidelines 61223445L1-5D 7 6. H4R CAPACITY GUIDELINES The ADTRAN 239 H4R is designed for installation in a prewired apparatus case, and the capacity guidelines for deployment are defined in Table 3 and Table 4. These housing capacity numbers are based upon testing results. Table 4. 239 H4R Capacity Guidelines for ADTRAN Housings Recommended Slot H4R Capacity Assignments Part Description CLEI Code Slots Stub Mat
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H4R Capacity Guidelines 239 T1 HDSL4 Repeater (H4R) Installation and Maintenance Practice 8 61223445L1-5D Table 5. 239 H4R Capacity Guidelines for Other Housings H4R Capacity Recommended Slot Assignments Manufacturers Part Manufacturer Description Slots Material Number Above Below Above Ground Below Ground Ground Ground ADC Radiator II SPX-HRXC-30-AG-016GT 16 16 16 All All Stainless Steel ADC Radiator SPX-HRXC-30-B1 8 8 8 All All Stainless Steel Circa Telecom HDSL-12A 760005 12 12 12 All
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239 H4R Installation and Maintenance Practice Front Panel LEDs 7. FRONT PANEL LEDS The ADTRAN 239 H4R provides front panel LEDs to display status information. See Table 6 for a listing of the front panel LEDs and their indications. Table 6. Front Panel LEDs Unit Label Indication Description LP1/LP2 ! Off No span power is present NET 239 H4R " Solid Green Synchronized with an Signal to Noise Ratio (SNR) margin greater than 1223445L1 the recommended SNR Margin Alarm Threshold Fast Flashing G
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Maintenance 239 H4R Installation and Maintenance Practice 8. MAINTENANCE The HDSL4 239 T1 HDSL4 Repeater (H4R) requires no routine maintenance for normal operation. In case of equipment malfunction, perform an in-band loopback from the Central Office. If a malfunction is confirmed, replace the unit. The ADTRAN 239 H4R has looping capability through the channel allowing digital loopback in fault isolation. The loopback is activated remotely. The type of loopbacks the H4R supports will be depen
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239 H4R Installation and Maintenance Practice Specifications Table 7. 239 T1 HDSL4 Repeater (H4R) Specifications Specification Description Loop Interface Modulation Type: 16 TC PAM Mode: Full Duplex, Partially overlapped echo canceling Number of Pairs: 2 Line Rate: 1.552 Mbps Baud Rate: 261.333 k baud Loop Loss: Refer to HDSL4 Deployment Guidelines on page 6. Bridged Taps: Single Taps < 2000 ft., Total Taps < 2500 ft. Performance: Compliant with T1.418-2000 (HDSL4 Standard, Issue 2) H4TU-
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Specifications 239 H4R Installation and Maintenance Practice This page is intentionally blank. 12 61223445L1-5D
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Appendix A Warranty WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifica- tions or fails while in service. Warranty information can be found at www.adtran.com/warranty. Refer to the following subsections for sales, 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 Techni
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239 H4R Installation and Maintenance Practice ® A-2 61223445L1-5D
