ADTRAN FT1 Installation & Maintenance
ADTRAN FT1 Installation & Maintenance

ADTRAN FT1 Installation & Maintenance

Adtran network device installation & manintenance manual
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PRACTICES
Contents
1. General ................................................................................ 1
2. Installation ........................................................................... 3
3. Installation of FT1 Repeaters in ADTRAN
Apparatus Cases .................................................................. 3
4. Maintenance ........................................................................ 4
5. CSA Deployment Guidelines .............................................. 5
6. Specifications ...................................................................... 6
7. Warranty and Customer Service ......................................... 6
Appendix A. FT1 Loopbacks .............................................. A-1
Figures
Connector Pinout .................................................. 3
FT1 Repeater Network Loopback ........................ 4
CSA Deployment Guidelines ............................... 5
Figure A-1. FT1 Loopbacks ................................................ A-1
Figure A-2. FT1 DP Network Loopback ............................ A-1
Figure A-3. FT1 DP CPE Loopback ................................... A-1
Figure A-5. FNID Network Loopback ............................... A-2
Figure A-6. FNID CPE Loopback ...................................... A-2
Tables
Table A.
LED Indications .................................................... 3
Table B.
FT1 Repeater Apparatus Cases ............................. 3
Table C.
Loop Insertion Loss Data ..................................... 4
Table D.
HDSL FT1 Repeater Unit Specifications ............. 6
Table A-1. FT1 Loopback Select Codes ............................. A-3

1. GENERAL

This practice provides installation and maintenance
procedures for the ADTRAN Single-Wide
Fractional T1 (FT1) Repeater, (ADTRAN P/N
1245211L1), illustrated in Figure 1.
The ADTRAN Single-Wide FT1 Repeater is a
device used to extend the effective range of an
ADTRAN FT1 circuit. It is capable of doubling the
deployment range of standard HDSL, providing a
carrier service area (CSA) compliant loop on both
sides of the Single-Wide FT1 Repeater.
61245211L1-5A
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
SINGLE-WIDE FT1 REPEATER
INSTALLATION/MAINTENANCE
CLEI Code # T1R6GMJDAA
1
GND
2
NC
3
T
CUSTOMER
LOOP 1
4
R
5
T
NETWORK
6
R
LOOP 1
7
NC
8
NC
9
NC
10
GND
11
NC
NC
12

Figure 1. ADTRAN Single-Wide FT1 Repeater

Features of the Single-Wide FT1 Repeater include:
• 2B1Q line coding
• Range up to 12 kft of 24-gauge wire each direction
from FT1 Repeater
• Lightning protection
• Remote loopback control
• Coexists with DDS and ISDN repeaters in same
apparatus case
• Remote performance monitoring capability
This unit is used in conjunction with any span
powering FT1 DP for the central office and span
powered FNID remote end as follows:
Part Number
Unit Name
1245206L1 ........... Siemens FT1 DP
1245207L1 ........... Northern Telecom FT1 DP
1245208L1 ........... ALCATEL FT1 DP
1245205L1 ........... WECO D4 FT1 DP
1245201L1 ........... FNID (T400)
1242046L2 ........... Siemens FT1 DP
1242047L2 ........... Northern Telecom FT1 DP
1242048L2 ........... Alcatel FT1 DP
1242040L2 ........... AT&T FT1 DP
1242041L2 ........... FNID (T400)
1242042L2 ........... FNID (standalone)
The ADTRAN Single-Wide FT1 Repeater provides
a means of extending the digital subscriber loop
serving range using a centrally-located unit. There
are no manual option settings on the Single-Wide
FT1 Repeater.
Section 61245211L1-5
Issue 1, December 1998
1

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Summary of Contents for ADTRAN FT1

  • Page 1: Table Of Contents

    The ADTRAN Single-Wide FT1 Repeater is a device used to extend the effective range of an ADTRAN FT1 circuit. It is capable of doubling the deployment range of standard HDSL, providing a carrier service area (CSA) compliant loop on both sides of the Single-Wide FT1 Repeater.
  • Page 2 1245211L1 FT1 RPTR This LED indicates the FT1 signal quality and errors on the Network-side loop. The NET LED will flash once when an errored second is detected on NET side loop. If the NET LED flashes yellow rapidly (six times per second), sealing current is present and the FT1 Repeater is attempting to synchronize with the other FT1 circuit elements.
  • Page 3: Table B. Ft1 Repeater Apparatus Cases

    1150058L2 ... 8-slot, Universal, gel ... 6 3. INSTALLATION OF SINGLE-WIDE FT1 REPEATERS IN ADTRAN APPARATUS CASES When installing the Single-Wide FT1 Repeater in an ADTRAN apparatus case, refer to the ADTRAN Installation/Maintenance practice for the apparatus case being used.
  • Page 4: Maintenance

    FNID failure on the craft interface screens. Likewise, if a self-test is initiated at the FNID, a repeater failure will be indicated as an FT1-DP failure on the craft interface screens. Replacement of Circuit Packs...
  • Page 5: Table C. Loop Insertion Loss Data

    5. CSA DEPLOYMENT GUIDELINES The ADTRAN FT1 DSL system including the ADTRAN Single-Wide FT1 Repeater is designed to provide Fractional DS1 based services over loops designed to comply with Carrier Service Area (CSA) guidelines. CSA deployment guidelines are given below.
  • Page 6: Specifications

    Return Loss ... 20 dB (40 kHz to 200 kHz) HDSL Tx Signal Level ... 13.5 dBm Input Impedance ... 135 Power Input Power ... (span-powered by FT1 DP) 3 W maximum Tests Diagnostics ... Loopback initiated with DDS latching loopback codes. Physical Dimensions ...
  • Page 7: Appendix Aft1 Loopbacks

    (N1010101), by a push-button when available, or by the craft interface. The OCU latching loopback code is detected in the primary DS0 of the FT1 circuit -- the channel where the FT1 DP is physically installed -- to control the FT1 circuit looping.
  • Page 8: Figure A-4. Ft1 Repeater Network Loopback

    RLB button at the FT1-DP. The NEI Position 1 latching loopback is detected in the primary DS0 of the FT1 circuit -- the channel in which the FT1 DP is physically installed -- to control the looping of the FT1 circuit. When the FT1 circuit is looped, all DS0s in use will be looped.
  • Page 9: Table A-1. Ft1 Loopback Select Codes

    Pressing this button activates the FT1 DP CPE loopback. Two push-buttons, labeled “LCL” and “REM,” respectively, are located on the front panel of the FT1 DP. Press REM on the FT1 DP in order to activate FT1 Repeater loopback (when available) or FNID network loopback. To deactivate Remote loopback, either press REM or wait for the loopback timeout (if enabled).
  • Page 10 4. LOOP-UP STATE In the loop-up state, the active FT1 loopback will provide a continuous loop for the FT1 bandwidth. The data flow is continuously monitored for the loop deactivation commands to deactivate the loopbacks. Also, a loopback timeout is checked. If...

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