® 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
39 H4R Installation and Maintenance Practice Trademarks Any brand names and product names included in this manual are trademarks, registered trademarks, 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.
239 H4R Installation and Maintenance Practice Revision History Revision Date D October 2004 Description of Changes 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).
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 facilities or at customer sites. For more information about training, please contact us. iv Training Phone: 800-615-1176, ext.
Contents 1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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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.
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 This 239 H4R supports the Runtime TScan 2.
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.
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.
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 user’s authority to operate this equipment. 3.
Connections 4. 239 H4R Installation and Maintenance Practice 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 5.
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.
H4R Capacity Manufacturer Description Manufacturer’s Part Number Slots Recommended Slot Assignments Material Above Ground Below Ground Above Ground Below Ground 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 All Stainless Steel Circa Telecom HDSL-12B 760006 12 12 12 All All Stainless Steel Arris/Lucent/ AT&T Keptel® Inter Link™ 809 RF809A3-XXX
239 H4R Installation and Maintenance Practice 7. Front Panel LEDs 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.
Maintenance 8. 239 H4R Installation and Maintenance Practice 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.
239 H4R Installation and Maintenance Practice Specifications Table 7. 239 T1 HDSL4 Repeater (H4R) Specifications Specification Description Loop Interface Modulation Type: Mode: Number of Pairs: 16 TC PAM Full Duplex, Partially overlapped echo canceling 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.
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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 specifications 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.
239 H4R Installation and Maintenance Practice ® A-2 61223445L1-5D
