CopperOptics PairGain PG-Flex FLC-703 Manual Download Page 2

Section 363-703-103
Revision 01

Page 2

A. PRODUCT OVERVIEW

1.  DESCRIPTION AND FEATURES

1.01

The PG-Flex FLC-703 Channel Unit provides 8
POTS interfaces between the Central Office and

PG-Flex, and uses 

µ

-Law PCM encoding. The Model FLC-

703 Channel Unit includes green status LEDs for each line
indicating idle, ringing, and off-hook conditions, as well as a
red LED indicating a fault condition on the Channel Unit.
The unit provides metallic test access to the subscriber line
connection through an optional metallic bypass pair.

1.02

Revision History of this practice.

Revision 02—December 18, 1996

a) Added List 3.

1.03

Features of the PG-Flex FLC-703 COT Channel
Unit:

• 

Eight POTS subscriber interfaces

• 

64 kbps 

µ

-Law PCM encoding

• 

Front panel ACTIVE LEDs indicate idle, ringing,
test access, and off-hook for each channel

• 

Front panel FAULT LED indicator simplifies
troubleshooting

• 

Pair Gain Test Controller (PGTC) Compatibility -
List 3 only

2.  APPLICATIONS

2.01

Subscriber Drop Testing. For subscriber drop
testing from the central office, PG-Flex is able to

select and connect any subscriber drop to a metallic test pair
at the RT. PG-Flex extends this connection back to the COT
where it can be switched onto the test access bus, or to the
corresponding subscriber line on the COT channel card.

2.02

Test access may be achieved by p116 V on
the subscriber’s COT tip lead for 1.5 seconds, then

removing the +116 V. Depending on the configuration of the
PG-Flex system, the selected subscriber drop (assuming a
working metallic bypass pair) will be connected to either the
corresponding COT subscriber line or to the test access bus.

2.03

The test connection will be dropped when -116V is
applied to the subscriber’s COT tip for 1.5 seconds,

then removing the -116 V.

2.04

Test access may also be activated through the
RS-232 Maintenance Port located on the front of the

COT Line Unit, using an ASCII terminal.

Summary of Contents for PairGain PG-Flex FLC-703

Page 1: ...SCRIPTION 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 C INSTALLATION AND TEST 8 UNPACKING 5...

Page 2: ...lifies troubleshooting Pair Gain Test Controller PGTC Compatibility List 3 only 2 APPLICATIONS 2 01 Subscriber Drop Testing For subscriber drop testing from the central office PG Flex is able to selec...

Page 3: ...signal between tip and ring leads with an amplitude from 65 Vrms to 104 Vrms and frequency between 16 Hz and 50 Hz as a ringing signal This signal may be superimposed on a dc component of 36 0 Vdc to...

Page 4: ...eplace it with another unit and return the faulty unit to PairGain for repair Any modifications of the unit by anyone other than an authorized PairGain representative will void the warranty 5 03 If a...

Page 5: ...as follows 1 Unpack each container and visually inspect it for signs of damage If the equipment has been damaged in transit immediately report the extent of damage to the transportation company and to...

Page 6: ...the COT Shelf All LEDs on the Channel Unit will turn on for approximately second then scan from top to bottom then flash all on then off b After the system has powered up established HDSL synchronized...

Page 7: ...Unit If ringing is present on other lines check for high resistance shorts on the subscriber drop If no high resistance shorts replace the RT Channel Unit 2 If ringing isn t present on a circuit term...

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