Related Manuals for ADTRAN 239 T1 HDSL4
Summary of Contents for ADTRAN 239 T1 HDSL4
- Page 1 239 T1 HDSL4 Repeater (H4R) Installation and Maintenance Practice CLEI: T1R6U87D_ _ October 2004 Part Number - 61223445L1-5D 239 H4R 1223445L1 CUST LL RL (Y) (G) ®...
- Page 2 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.
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Page 3: Revision History
239 H4R Installation and Maintenance Practice Revision History Revision 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. indicates screen menus, fields, and parameters. This font indicates keyboard keys ( HIS FONT... - Page 4 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.
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Page 5: Table Of Contents
239 H4R Capacity Guidelines for ADTRAN Housings ........ - Page 6 Tables 239 H4R Installation and Maintenance Practice This page is intentionally blank. 61223445L1-5D...
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Page 7: General
DS1 to customer equipment. The H4TU-C provides testing, provisioning, and performance monitoring capabilities that address circuit status. The H4TU-C works in conjunction with the ADTRAN H4TU-R (Remote) and up to three H4Rs (Repeaters) to provide a DS1 service on the local loop. -
Page 8: Features
Description 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 •... -
Page 9: Fast Retrain Feature
H4RU1 CST Fast Retrain Feature Fast Retrain is an ADTRAN proprietary feature whose intent is to minimize downtime when an intermittent non power-related impairment (bad splice, noise burst, etc.) affects the HDSL loop and cannot be bridged. HDSL2 and HDSL4 transceivers normally train in approximately 25 to 30 seconds. For an initial circuit turn-up, this is not a big issue. -
Page 10: Compatibility
Due to span power limits, the number of H4Rs permitted in the circuit depends upon the type of H4TU-C utilized. An ADTRAN 239 H4R provides DS1 transport on all revised resistance design (RRD) 26 AWG and/or 24 AWG loops. Three ADTRAN 239 H4R repeaters may be added to extend the range of a loop. -
Page 11: Installation
The 239 H4R is designed for deployment in any environmentally controlled 239-type apparatus case. A retainer latch is available for securing the 239 H4R in the apparatus case. When installing the ADTRAN 239 H4R refer to the Installation and Maintenance Practice for the housing being used. -
Page 12: Connections
Connections CONNECTIONS All connections are made through card edge connectors. Table 3 provides the card edge pin assignments. The H4R dissipates a maximum of 5.4 watts. Ensure that the chassis ground is securely connected to the apparatus case. Ground pin designations are defined in HDSL4 DEPLOYMENT GUIDELINES Refer to the H4TU-C Installation and Maintenance Practice, HDSL4 Deployment Guidelines section, for loop parameters including attenuation and loop resistance considerations. -
Page 13: H4R Capacity Guidelines
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... -
Page 14: Table 5. 239 H4R Capacity Guidelines For Other Housings
Table 5. 239 H4R Capacity Guidelines for Other Housings Manufacturer’s Part Manufacturer Description Number Radiator II SPX-HRXC-30-AG-016GT Radiator SPX-HRXC-30-B1 Circa Telecom HDSL-12A 760005 Circa Telecom HDSL-12B 760006 Arris/Lucent/ RF809A3-XXX or Keptel ® Inter AT&T RF809B3-XXX Link ™ Arris/Lucent/ RF819A1 or RF819A2 Keptel ®... -
Page 15: Front Panel Leds
239 H4R Installation and Maintenance Practice FRONT PANEL LEDS The ADTRAN 239 H4R provides front panel LEDs to display status information. See front panel LEDs and their indications. Unit Label Indication LP1/LP2 ! Off Solid Green " 239 H4R 1223445L1... -
Page 16: Maintenance
Maintenance 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. -
Page 17: Table 7. 239 T1 Hdsl4 Repeater (H4R) Specifications
Specification H4TU-C Transmit Power (Data) Level: H4TU-C Transmit Power (Activation) Level: Maximum Loop Resistance: Tested with the ADTRAN H4TU-R (P/N 1223426L1) and H4R (P/N 1223445L1) Internal Clock Accuracy: 239 Repeater, Apparatus Shelf-Mounted, Weight: Standard Operating Temperature: 239 T1 HDSL4 Repeater (H4R):... - Page 18 Specifications 239 H4R Installation and Maintenance Practice This page is intentionally blank. 61223445L1-5D...
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Page 19: Warranty
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. - Page 20 239 H4R Installation and Maintenance Practice ® 61223445L1-5D...