Table of Contents
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PG-F
E
C
LEX
IGHT
HANNEL
C
O
T
ENTRAL
FFICE
ERMINAL
L
S
/G
S
U
OOP
TART
ROUND
TART
NIT
Model
List Number
Part Number
CLEI Code
FLC-703
4
150-1303-04
VACHCHGCAA
P
G
T
, I
.
AIR
AIN
ECHNOLOGIES
NC
E
P
S
T
P
NGINEERING
LANT
ERIES
ECHNICAL
RACTICE
S
363-703-104-01
ECTION
Revision History of this practice.
Revision 01—June 5, 1997
A) Initial Release.
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Summary of Contents for PairGain FLC-703
- Page 1 PG-F IGHT HANNEL ENTRAL FFICE ERMINAL TART ROUND TART Model List Number Part Number CLEI Code FLC-703 150-1303-04 VACHCHGCAA ECHNOLOGIES NGINEERING LANT ERIES ECHNICAL RACTICE 363-703-104-01 ECTION Revision History of this practice. Revision 01—June 5, 1997 A) Initial Release.
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Page 2: Table Of Contents
A caution indicates the possibility of equipment damage. A warning indicates the possibility of personal injury. Copyright © 1997, PairGain Technologies, Inc. PairGain is a registered trademark, and PG-Flex is a trademark of PairGain Technologies, Inc. PairGain Engineering - Plant Series PG-Flex FLC-703... -
Page 3: Product Overview
Provisioning is done through the PG-Flex Line Unit Maintenance port. The FLC-703 unit provides metallic test access to the subscriber line connection through an optional metallic bypass pair. Perform metallic bypass testing either manually or through the Pair Gain Test Controller (PGTC). -
Page 4: Front Panel
June 5, 1997 Revision 01 2. Front Panel Figure 1 shows the FLC-703 front panel. Table 1 lists the different states and indications for the FLC-703 Channel Unit front panel LEDs. Figure 1. FLC-703 Front Panel Table 1. FLC-703 Front Panel LEDs... -
Page 5: Specifications
Temperature and Humidity ......-40° F to +150° F (-40° C to +65° C) 5% to 95% (non condensing) Physical Weight ............0.8 lb (0.4 kg) Dimensions Height ..........6.75 in. (17.2 cm) Width ...........1.00 in. (2.5 cm) Depth ...........10.50 in. (26.7 cm) PG-Flex FLC-703 PairGain Engineering - Plant Series Page 3... -
Page 6: Functional Description
Circuit Operation. The following paragraphs define the FLC-703 circuit operation when using loop start for subscriber lines or ground start for PBX lines. Each FLC-703 circuit has an associated LED that indicates when the line is off-hook, idle, ringing, or under test. See Table 1. - Page 7 Ring lead at the RT: FRC-753 signals the FLC-703 FLC-703 operates a Ring ground relay that requests dial tone from the CO (this makes the circuit busy, or seizes it, for outgoing calls to prevent others from using it, i.e., prevents glare...
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Page 8: Installation And Test
Check the contents versus the packing list to ensure complete and accurate shipment. If the shipment is short or irregular, contact PairGain as described in Section 11. If you must store the equipment for a prolonged period, store the equipment in its original container. -
Page 9: Troubleshooting
Activate test access through the RS-232 maintenance port located on the front of the COT Line Unit using an ASCII terminal. Table 2 provides PG-Flex system troubleshooting procedures based on indications displayed by the FLC-703 Channel Unit front panel LEDs or customer reported problems. PG-Flex FLC-703 PairGain Engineering - Plant Series... - Page 10 CO switch. If ringing is present, replace the COT Channel Unit. Test again for ringing at the network interface. If ringing is still not present, contact PairGain technical assistance per section 9. Verify the resistance of the copper loop between the RT Enclosure and Ω.
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Page 11: Technical Support
10. Certification 10.1 FCC Compliance. The FLC-703 List 4 Channel Unit complies with the limits for Class A digital devices pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. -
Page 12: Warranty
11. Warranty 11.1 PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of 5 years from the date of original shipment, given proper customer installation and regular maintenance. 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. -
Page 13: Abbreviations
Central Office Terminal DTMF Dual Tone Multi Frequency Mechanized Loop Testing Private Branch Exchange Pulse Code Modulation PGTC Pair Gain Test Controller POTS Plain Old Telephone Service Return Material Authorization Remote Terminal PG-Flex FLC-703 PairGain Engineering - Plant Series Page 11...