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PAIRGAIN TECHNOLOGIES
Technical Practice
Engineering - PLANT Series
List #
1
2
CONTENTS
CAUTION
This product incorporates static sensitive
components. Proper electrostatic discharge
procedures must be followed.
™
PG-F
24 C
LEX
MODEL FRL-742
PAGE
2
2
3
4
4
4
6
7
10
10
10
RT L
HANNEL
PairGain #
150-1342-01
150-1342-02
Figure 1. FRL-742 RT Line Unit Front Panel. The PairGain
FRL-742 is the remote end of the PG-Flex subscriber carrier system.
Section 363-742-102
December 18, 1996
U
INE
NIT
CLEI Code
VARHDF0CAA
VARHDFFCAA
Revision 01
Page 1
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Related Manuals for CopperOptics PairGain PG-Flex FRL-742
Summary of Contents for CopperOptics PairGain PG-Flex FRL-742
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Page 1: Table Of Contents
PAIRGAIN TECHNOLOGIES Section 363-742-102 Technical Practice Revision 01 Engineering - PLANT Series December 18, 1996 ™ PG-F 24 C RT L HANNEL MODEL FRL-742 List # PairGain # CLEI Code 150–1342-01 VARHDF0CAA 150-1342-02 VARHDFFCAA CONTENTS PAGE PRODUCT OVERVIEW 1. DESCRIPTION AND FEATURES 2. -
Page 2: Product Overview
Section 363-742-102 Revision 01 A. PRODUCT OVERVIEW four complete systems may be installed in a 23-inch COT Shelf. Each system requires one COT Line Unit 1. DESCRIPTION AND FEATURES and up to three (23-inch shelf) or six (19-inch shelf) 1.01 Channel Units. -
Page 3: Specifications
Section 363-742-102 Revision 01 Figure 2. Typical PG-Flex Configuration. TABLE 1. PG-FLEX DISTANCES Loop Length Wire Gauge 12/24 Channel System Resistance 750 Ω 26 AWG (0.4 mm) 9.0 kft (2.8 km) 638 Ω 24 AWG (0.5 mm) 12.3 kft (3.8 km) 521 Ω... -
Page 4: Certification
Section 363-742-102 Revision 01 4. CERTIFICATION 5.04 PairGain will continue to repair faulty modules beyond the warranty program at a nominal charge. Contact 4.01 FCC Compliance. The FRL-742 RT Line Unit your PairGain sales representative for details and pricing. complies with the limits for Class A digital devices pursuant to Part 15 of the FCC rules. - Page 5 Section 363-742-102 Revision 01 Figure 3. FRL-742 Block Diagram. Page 5...
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Page 6: Front Panel
Section 363-742-102 Revision 01 • LOOP 2 MARGIN LED Indicator 7. FRONT PANEL Yellow—HDSL line 2 margin is below a preset level. 7.01 The front panel of the FRL-742 contains the following switch, indicators, connector Off—HDSL line 2 margin is above the preset level. (see Figure 1): •... -
Page 7: Terminal Management
Section 363-742-102 Revision 01 8. TERMINAL MANAGEMENT – Display Channel Status to show the current status of all channels in the system. Each 8.01 The terminal management function at the remote channel has one of the following status terminal enables a technician to monitor the entire PG-Flex conditions: system through an ASCII terminal (or equivalent) connected IDLE: The channel is not off-hook or... - Page 8 Section 363-742-102 Revision 01 Figure 4. FRL-742 DB-9 Pin Outs. A standard RS-232 (DB-9) connector on the front panel provides access to the menu interface feature via an ASCII terminal. Page 8...
- Page 9 Section 363-742-102 Revision 01 Figure 5. Terminal Menu and Display Structure. Page 9...
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Page 10: Installation And Test
Section 363-742-102 Revision 01 C. INSTALLATION AND TEST 10. TURN-UP AND TESTING 10.01 Table 2 provides step-by-step turn-up and test 9. UNPACKING procedures for the FRL-742 RT Line Unit. 9.01 Upon receipt of the equipment, proceed as follows: 11. TROUBLESHOOTING 1. - Page 11 Section 363-742-102 Revision 01 TABLE 3. FRL-742 RT LINE UNIT TROUBLESHOOTING Indication Problem Action POWER LED 1. One or both HDSL lines a. Make the following measurement on the RT Enclosure backplane: are no longer connected • 130 Vdc to 250 Vdc between HDSL_T and HDSL_T between the COT and RT.
- Page 12 The number of seconds the HDSL loop was out of synchronization. This value is a running total of HDSL 24 Hour the last 24 hours. (Unavailable Seconds) Copyright © 1996, PairGain Technologies, Inc. PairGain is a registered trademark, CopperOptics and PG-Flex are trademarks of PairGain Technologies, Inc. Page 12...
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