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PAIRGAIN TECHNOLOGIES 

Section 363-746-100

Technical Practice 

Revision 01

Engineering - PLANT Series 

May 13, 1996

Page 1

PG-F

LEX

 

32 C

HANNEL 

RT L

INE 

U

NIT

MODEL FRL-746 List 1

PairGain # 150-1346-01

CONTENTS

PAGE

A.

PRODUCT OVERVIEW
1.

DESCRIPTION
AND FEATURES

2

2.

APPLICATIONS

2

3.

SPECIFICATIONS

3

4.

CERTIFICATION

4

5.

WARRANTY

4

B.

FUNCTIONAL DESCRIPTION
6.

OPERATIONAL
CAPABILITIES

4

7.

FRONT PANEL

5

8.

TERMINAL MANAGEMENT

6

C.

INSTALLATION AND TEST
9.

UNPACKING

8

10. TURN-UP AND TESTING

8

11. TROUBLESHOOTING

8

CAUTION

This product incorporates static sensitive

components.  Proper electrostatic discharge

procedures must be followed.

F R L 7 4 6

L IN E U N IT

1

LIS T

P W R

S YN C

S Y N C

M A R G IN

M A R G IN

LO O P 1

LO O P 2

F A ULT

T E S T

A C O

R S 2 32

1028

Figure 1.  FRL-746 RT Line Unit, List 1, Front Panel. The
PairGain FRL-746 is the remote end of a PG-Flex subscriber
carrier system.

Содержание PG-FLEX FRL-746 List 1

Страница 1: ...IONAL DESCRIPTION 6 OPERATIONAL CAPABILITIES 4 7 FRONT PANEL 5 8 TERMINAL MANAGEMENT 6 C INSTALLATION AND TEST 9 UNPACKING 8 10 TURN UP AND TESTING 8 11 TROUBLESHOOTING 8 CAUTION This product incorpor...

Страница 2: ...t or Pair Gain Test Controller Interface Unit in each shelf provides an interface for maintenance alarm relays and metallic access to the remote subscriber lines Remote Terminal RT The RT Enclosure pr...

Страница 3: ...ropped when 116V is applied to the subscriber s COT tip for 1 5 seconds then removing the 116 V 2 09 Test access may also be activated through the RS 232 Maintenance Port located on the front of the C...

Страница 4: ...e PairGain will repair or replace any unit without cost during this period if the unit is found to be defective for any reason other than abuse or improper use or installation 5 02 This module should...

Страница 5: ...n HDSL line 2 is attempting to synchronize with the remote unit Off HDSL line 2 does not detect an active remote unit LOOP 2 MARGIN LED Indicator Yellow HDSL line 2 margin is below a preset level Off...

Страница 6: ...ption A from the Main Menu the technician can Display System Status to show the equipment installed in the system and the current status in alarm or not of the equipment An next to the unit name indic...

Страница 7: ...terminal Login Status Main Menu Inventory Setup System Status Channel Status HDSL Status HDSL 24 Hour Perform ance History HDSL 7 Day Performance History System Setup System Date System ID System Tim...

Страница 8: ...rve normal electrostatic discharge precautions when handling electronic equipment Do not hold electronic plug ins by their edges Take care not to touch components or circuitry Step Operation Action Ob...

Страница 9: ...COT HDSL power supply has failed Replace the COT Line Unit Indication Problem Action LOOP 1 2 SYNC LED flashing or off 1 The HDSL line is attempting to synchronize with the Central Office unit or cann...

Страница 10: ...loop attenuation to the 2B1Q signal than the 278 kHz loss The normal range of pulse attenuation is from 1 to 32 dB PPM Indicates the relative offset of the crystal oscillator in the RT Line Unit from...

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