ADTRAN FT1 User Manual

C A U T I O N !

SUBJECT TO ELECTROSTATIC DAMAGE

OR DECREASE IN RELIABILITY.

HANDLING PRECAUTIONS REQUIRED.

PRACTICES

SINGLE-WIDE FT1 REPEATER

INSTALLATION/MAINTENANCE

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

Section 61245211L1-5

Issue 1, December 1998

CLEI Code # T1R6GMJDAA

GND

CUSTOMER

LOOP 1

NETWORK

LOOP 1

GND

FT1 REPEATER

1245211L1

Figures

Figure 1. ADTRAN Single-Wide FT1 Repeater ................. 1

Figure 2. ADTRAN Single-Wide FT1 Repeater

Connector Pinout .................................................. 3

Figure 3. FT1 Repeater Network Loopback ........................ 4

Figure 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-4. FT1 Repeater Network Loopback .................. A-2

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.

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.

Trademarks: Any brand names and product names included in this document are trademarks, registered trademarks, or trade names of their respective holders.

Section 61245211L1-5, Issue 161245211L1-5A 1

The ADTRAN Single-Wide FT1 Repeater provides three faceplate LEDs which indicate signal quality, error conditions, and loopback status. See Table A for a description of the LED indicators.

Operating power is derived from an ADTRAN FT1 DP, independent of line impedance or wire gauge. The repeater uses some current, then passes the span power on to the FNID.

Table A. LED Indications

The Single-Wide FT1 Repeater operates at line losses up to 35.25 dB at 200␣ kHz, in both directions from the repeater and regenerates the 2B1Q signals to meet the transmitted power spectrum of Bellcore TA-NWT-0001210. For deployment guidelines, refer to subsection 5 of this practice.

The Single-Wide FT1 Repeater is housed in an environmental apparatus case.

NOTE

Do not remove the metal shell enclosing the circuit packs.

1245211L1

FT1 RPTR

NET

CUST

LBK

LED Description and Indications

NET 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.

Off ........ No synchronization with the FT1 DP.

Green .... Synchronized with good signal quality on NET loop (> 2dB margin above 10–7 BER)

Yellow .. Synchronized with marginal signal quality on NET loop (< 2 dB margin above 10–7 BER)

Red........ Synchronized with poor signal quality on NET loop (>10–7 BER)

CUST This LED indicates the FT1 signal quality and errors on the Customer-side loop. The CUST LED

will flash once when an errored second is detected on CUST side loop.

Off ........ No synchronization with the FNID.

Green .... Synchronized with good signal quality on CUST loop (> 2dB margin above 10–7 BER)

Yellow .. Synchronized with marginal signal quality on CUST loop (< 2 dB margin above 10–7 BER)

Red........ Synchronized with poor signal quality on CUST loop (>10–7 BER)

LBK This LED indicates the status of a loopback detected at the FT1 Repeater.

Off ........ No loopback detected at the FT1 Repeater.

Yellow .. Loopback detected toward NET.

2 Section 61245211L1-5, Issue 1 61245211L1-5A

The connector pinout for the Single-Wide FT1 Repeater is shown in Figure 2.

GND

3 4 5 6 7 8

9 10 11 12

R T R NC NC NC GND NC NC

CUSTOMER

LOOP 1

NETWORK

LOOP 1

2. INSTALLATION

CAUTION

This equipment contains static-sensitive components. Be sure to follow proper electrostatic discharge procedures before handling or installing the equipment.

The Single-Wide FT1 Repeater circuit pack is shipped in a separate carton and must be installed in an environmental apparatus case.

Remove the Single-Wide FT1 Repeater circuit pack from the carton and visually ensure that damage has not occurred during shipping or handling. If damage has occurred, file a claim immediately with the carrier, then contact ADTRAN customer service.

The Single-Wide FT1 Repeater circuit pack is designed for installation in a pre-wired apparatus case. These are described in Table B.

Figure 2. ADTRAN Single-Wide FT1 Repeater

Connector Pinout

Revision History

This is the first issue of this practice. In subsequent issues, revisions will be summarized in this paragraph.

Table B. FT1 Repeater Apparatus Cases

ADTRAN Part FT1 Number Description Repeaters

1150027L1 ... 4-Slot, Dual T1 form, air ........ 4

1150027L2 ... 4-slot, Dual T1 form, gel ........ 4

1152010L3 ... 2-slot, Dual T1 form, gel ........ 2

1152010L4 ... 2-slot, Dual T1 form, air ......... 2

1150057L1 ... 4-slot, Universal, air ............... 4

1150057L2 ... 4-slot, Universal, gel ............... 4

1150058L1 ... 8-slot, Universal, air ............... 6

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.

CAUTION

The housing must be considered to be under pressure and should be handled accordingly. The Single-Wide FT1 Repeater dissipates a maximum of 3 watts.

Section 61245211L1-5, Issue 161245211L1-5A 3

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