ADTRAN T200 Installation And Maintenance Manual
ADTRAN T200 Installation And Maintenance Manual

ADTRAN T200 Installation And Maintenance Manual

Encapsulated hdsl range extender

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ADTRAN T200 Encapsulated HDSL Range Extender (HRE)
CONTENTS
1.
GENERAL ................................................................... 1
2.
INSTALLATION ........................................................... 2
3.
FACEPLATE FEATURES ........................................... 2
4.
DEPLOYMENT GUIDE ............................................... 2
5.
MAINTENANCE .......................................................... 4
6.
SPECIFICATIONS ...................................................... 5
7.
Appendix A. HDSL Loopbacks ............................................... A-1
FIGURES
ADTRAN T200 HRE ............................................. 1
HDSL Deployment Guidelines .............................. 2
Figure A-1. HDSL Loopback Points ...................................... A-1
Figure A-2. HDSL Element State Diagram ........................... A-2
TABLES
Compliance Codes .......................................... 2
LED Indications ............................................... 3
Loop Insertion Loss Data ................................ 4
ADTRAN HRE Specifications .......................... 5

1. GENERAL

The ADTRAN T200 Encapsulated Low Voltage HRE,
P/N 1246041L3, is used to extend the effective range
of an ADTRAN HDSL-based T1 circuit. Figure 1 is
an illustration of the HRE. HRE equipment features
include:
• Up to 12 kft of 24-gauge wire range in each direction
• 2B1Q line coding
• Lightning protection
• In-band loopback control
• Type 400 mechanics
• Enhanced provisioning, performance monitoring, and
diagnostics
The ADTRAN T400 Encapsulated Low Voltage HRE
can effectively double the deployment range of
standard HDSL and provide carrier service area
(CSA)-compliant loops on both side of the HRE.
Using a centrally-located unit extends the digital
subscriber loop serving range up to 24 kft over
24-AWG twisted pair wire.
61246041L3-5A
Installation and Maintenance
61246041L3-5, Issue 1
T
rademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
CLEI Code # T1R6DJVD_ _
HRE ENCAPSULATED
HDSL T1 RANGE EXTENDER
1246041L3
GREEN / WHITE
HDSL LOOP 1 - NETWORK
ORANGE / WHITE
HDSL LOOP 2 - NETWORK
BLUE / RED
HDSL LOOP 1 - CUSTOMER
BLUE / WHITE
HDSL LOOP 2 - CUSTOMER
BROWN / WHITE
NO CONNECTIONS
SLATE / WHITE

Figure 1. ADTRAN T200 HRE

An HRE is used in conjunction with any span
powering T1 HDSL transceiver unit for the central
office (HTU-C) and low voltage HDSL transceiver
unit for the remote end (HTU-R). Compatible
ADTRAN HDSL transceiver units are as follows:
Part Number
Description
1242002LX .......... 220/E220 HTU-C
1242016LX .......... 3192 HTU-C
1242023LX .......... DDM Plus HTU-C
1244001LX .......... Low Voltage 220/E220 HTU-C
1244002LX .......... Litespan HTU-C
1244021LX .......... Low Voltage T200 HTU-R CP
1244022LX .......... Low Voltage HTU-R SA
1245001LX .......... 5th Generation 220/E220 HTU-C
1245002LX .......... 5th Generation Litespan AHTIU
1245003LX .......... 5th Generation DDM Plus HTU-C
1245004LX .......... 5th Generation 3192 HTU-C
1245021LX .......... 5th Generation T200 HTU-R CP
1245022LX .......... 5th Generation T200 HTU-R SA
1245024LX .......... 5th Generation T400 HTU-R
1245026LX .......... 5th Generation T200 HTU-R CI
1246001LX .......... 6th Generation 220/E220 HTU-C
1246003LX .......... 6th Generation DDM Plus HTU-C
1246004LX .......... 6th Generation 3192 HTU-C
1246026LX .......... 6th Generation T200 HTU-R CI
Section 61246041L3-5A
Issue 1, November 2000
POWER
NET

LOOP 2

LOOP 2
LPBK
GREEN=REM
1

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Summary of Contents for ADTRAN T200

  • Page 1: Table Of Contents

    1242016LX ..3192 HTU-C P/N 1246041L3, is used to extend the effective range 1242023LX ..DDM Plus HTU-C of an ADTRAN HDSL-based T1 circuit. Figure 1 is 1244001LX ..Low Voltage 220/E220 HTU-C an illustration of the HRE. HRE equipment features 1244002LX ..
  • Page 2: Installation

    LENGTH (KFT) Compliance Codes Table 1 shows the Compliance Codes for the T200 HRE. The T200 HRE complies with the requirements covered under UL 1950, Third Edition, and is intended to be installed in an enclosure with an Installation Code (IC) of “B”...
  • Page 3: Table 2. Led Indications

    Table 2. LED Indications Faceplate LEDs Indicate the Following HRE States Description and Indications POWER ....This LED indicates two states. Off ... No span power is present. On ... Span power is present. POWER LOOP 1 NET LOOP 1 ... This LED indicates the HDSL signal quality, loopback status, and errors on NET loop 1. The LOOP 2 LOOP 1 NET LP1 LED will flash once when an errored second is detected on NET loop 1.
  • Page 4: Maintenance

    5. MAINTENANCE Recommended maximum local loop loss information for PIC cable at 70° F and 135 Ω resistive termination The ADTRAN Low Voltage HRE requires no routine is provided in Table 3. maintenance. In case of equipment malfunction, perform an in-band loopback from the central office Table 3.
  • Page 5: Specifications

    Table 4 lists the ADTRAN HRE specifications. (800) 827-0807 7. WARRANTY AND CUSTOMER SERVICE ADTRAN Technical Support ADTRAN will replace or repair this product within 10 Presales Applications/Postsales Technical Assistance years from the date of shipment if it does not meet its (800) 726-8663...
  • Page 6 61246041L3-5, Issue 1 61246041L3-5A...
  • Page 7: Appendix Ahdsl Loopbacks

    HDSL LOOPBACKS This appendix describes the use and operation of The HREs and HTU-Rs’ loopback capabilities are loopback control code sequences used in ADTRAN’s controlled from the central office unit (HTU-C). HDSL system. Loopback control codes are governed by the HTU-C (and HRE(s) if deployed). Two types...
  • Page 8: Figure A-2. Hdsl Element State Diagram

    Loopback Process A summary of timeout and control sequences is given In general, the loopback process for the HDSL system in Table A-1. elements is modeled on the corresponding DS1 system In-band control code sequences are transmitted over process. Specifically, the HTU-C loopback is similar the DS1 link by either the unframed or overwrite to an intelligent office repeater loopback and the method.
  • Page 9: Table A-1. Hdsl Standard Loopback Control Codes

    Disarmed State make a transition from the disarmed state into the The disarmed state is the normal mode of operation. armed state. All other control code sequences are Each HDSL element is transparent to the data flow. ignored in the disarmed state. However, the in-band data flow and the ESF data link The ESF data link sequence used to simultaneously are monitored for the arming sequence.
  • Page 10 All other in-band and ESF data link control code All HDSL elements will automatically move from the sequences are ignored in the armed state. An arming armed state into the disarmed state when a default timeout value causes automatic return to the disarmed timeout value of two hours is reached.
  • Page 11: Table A-2. Hdsl Loopback Control Codes

    Upon deactivation of a loopback, the HDSL system The unit can detect the loopback activation or will synchronize automatically. Note that the deactivation code sequence only if an error rate of synchronization process of the HDSL system upon or better is present. deactivation of the HRE loopback could take up to 15 DDS Latching Loopback Operation seconds, ensuring all system elements are...
  • Page 12: Table A-3. Inband Addressable Loopback Codes

    Table A-3. Inband Addressable Loopback Codes l l i l l i t t a l l i . e t s t i e t t l l i t t a l l i l l a . s t s t i s t i l l i...

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