Related Manuals for ADTRAN 239 HRE
Summary of Contents for ADTRAN 239 HRE
- Page 1 ® HDSL 239 Range Extender Installation and Maintenance Practice Document Number: 61247045L1-5A CLEI: T1IRPAACB_ _ June 2008...
- 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 document.
- Page 3 Revision History Revision Date Description June 2008 Initial release Conventions The following typographical conventions are used in this document: This font indicates a cross-reference link. indicates screen menus, fields, and parameters. This font indicates keyboard keys ( ). Keys that are to be pressed simultaneously HIS FONT NTER are shown with a plus sign (...
- Page 4 HDSL 239 Range Extender 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 product lines. ADTRAN provides a variety of training options, including customized training and courses taught at our facilities or at customer sites.
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Page 5: Table Of Contents
ADTRAN Technical Support ........ - Page 6 239 HRE Edge Connectors Pin........
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Page 7: General
HDSL 239 Range Extender GENERAL This practice is an installation and maintenance guide for the ADTRAN HDSL 239 Range ® Extender (239 HRE). Figure 1 illustrates the 239 HRE (P/N 1247045L1) front panel. Figure 1. 239 HRE Front Panel 61247045L1-5A... -
Page 8: Description
HDSL 239 Range Extender Installation and Maintenance Practice Description The ADTRAN 239 HRE can effectively double the deployment range of standard HDSL and provide Carrier Service Area (CSA) compliant loops on both sides of the HRE. The unit extends the digital subscriber loop serving range up to 24 kft over 24-AWG twisted wire. -
Page 9: Compliance
General Compliance The 239 HRE is NRTL Listed to the applicable UL standards for continuous use in –40°C to +50°C environmental conditions. Care should be exercised when handling equipment when tempera- tures at these extremes exist, as surfaces could be very cold or hot. - Page 10 HDSL 239 Range Extender Installation and Maintenance Practice CAUTION The 239 HRE does not have a local Power Connection. As such there are no special requirements regarding treatment of the battery return leads as described in GR-1089-CORE. NOTE The HDSL ports are classified as Type 3 and 5, as defined in...
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Page 11: Hdsl Deployment Guidelines
HDSL Deployment Guidelines HDSL DEPLOYMENT GUIDELINES The ADTRAN HDSL system is designed to provide DS1 based services over loops designed to comply with carrier service area (CSA) guidelines. CSA deployment guidelines are given below. • All loops are non-loaded only. -
Page 12: Table 3. Hdsl Loss Values
HDSL 239 Range Extender Installation and Maintenance Practice Table 3. HDSL Loss Values (200 kHz cable loss in dB/kft at 135 Ω ) Temperature Cable Gauge Cable Type 68° 90° 120° 3.902 4.051 4.253 Pulp 4.030 4.179 4.381 2.863 2.957 3.083 Pulp 3.159... -
Page 13: Installation
When the 239 HRE first powers up it runs the power up self-tests. Once the power up self-test is complete, the status LEDs reflect the true state of the hardware. Follow housing documentation to close and seal the repeater housing. -
Page 14: Compatible Repeater Housings
Compatible Repeater Housings The 239 HRE can be installed in all standard 239 and 819 Repeater housings. Table 5 lists examples of available housings. Table 5. Compatible Repeater Housings HRE Capacity Description Part Number CLEI Stub Slots Material Mechanics Above Ground... - Page 15 Table 5. (Continued) Compatible Repeater Housings HRE Capacity Description Part Number CLEI Stub Slots Material Mechanics Above Ground Below Ground AT&T Air-core Polymer 1, 3, 5, 7, 9, 11 Stainless AT&T 841C Air-core Steel Air-core Stainless 239/439 6-slot Steel (no 819A) Gel-filled Air-core Stainless...
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Page 16: Connections
HDSL 239 Range Extender Installation and Maintenance Practice Connections All connections of the 239 HRE are made through card edge connectors. Table 6 lists the 239 HRE card edge connector pin. Table 6. 239 HRE Edge Connectors Pin Designation Description... -
Page 17: Front Panel Leds
Unit is looped toward the HTU-C MAINTENANCE The 239 HRE does not require routine maintenance for normal operation. Do not attempt to repair the 239 HRE in the field. Repair services are obtained by returning the defective unit to ADTRAN. Refer to “Appendix B, Warranty”... -
Page 18: Specifications
HDSL 239 Range Extender Installation and Maintenance Practice SPECIFICATIONS Table 8 details the specifications for the 239 HRE. Table 8. 239 HRE Specifications Specification Description Loop Interface Modulation Type: 2B1Q Mode: Full duplex; echo cancelling Number of Pairs: Bit Rate:... -
Page 19: Hdsl Loopbacks
This Appendix describes operation of the HDSL system with regard to detection of in-band and ESF facility data link loopback codes. The operation of the loopback commands in the ADTRAN HDSL system is compliant with the recommendation to ANSI recorded in T1E1.4/92. The HDSL network loopback points described below are shown in Figure A-1. -
Page 20: Loopback Process Description
HDSL 239 Range Extender Installation and Maintenance Practice Loopback Process Description In general, the loopback process for the HDSL system elements is modeled on the corresponding DS1 system process. Specifically, the HTU-C loopback is similar to an Intelligent Office Repeater loopback and the HTU-R loopbacks are similar to an inline T1 Repeater loopback. Each HDSL system element is independently described by the state diagram shown in Figure A-2. -
Page 21: Hdsl Loopback Codes
Appendix A, HDSL Loopbacks - HDSL Maintenance Modes In-band control code sequences are transmitted over the DS1 link by either the unframed or overwrite method. The HDSL elements respond to either method. The unframed method produces periodic control sequences and the normal DS1 framing bit is omitted. - Page 22 HDSL 239 Range Extender Installation and Maintenance Practice Table A-1. HDSL Loopback Control Codes (Continued) Function Code (Binary/Hex) Response Activation (HTU-C) 1111110 (6 in 7) Signal sent in-band. HTU-C loops back the T1 data to the customer equipment. Source: Customer Activation (HTU-C) 0011 1111 0001 1110/ Signal sent in-band.
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Page 23: Warranty
Appendix B 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. - Page 24 ® Carrier Networks Division 901 Explorer Blvd. Huntsville, AL 35806...