background image

Revision 02

January 12, 1998

Section 363-704-102-02

PG-Flex FLC-704 List 2

PairGain Engineering - Plant Series

Page 1

A.  PRODUCT OVERVIEW

1.  Description and Features

1.1

The PairGain® PG-Flex

™ FLC-704 List 2 Channel Unit provides eight Plain Old Telephone Service

(POTS) interfaces between the Central Office and the PG-Flex, and uses A-Law pulse code
modulation (PCM) encoding.  The Model FLC-704 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.  The channel unit provides metallic test access to the subscriber line connection through
an optional metallic bypass pair.

1.2

Features of the PG-Flex FLC-704 COT Channel Unit:

• 

eight POTS subscriber interfaces

• 

64 kbps A-Law PCM encoding

• 

metering tones (12 kHz, 16 kHz)

• 

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

• 

front panel FAULT LED indicator simplifies troubleshooting

Summary of Contents for PG-Flex 8 FLC-704

Page 1: ...704 Model List Number Part Number CLEI Code FLC 704 2 150 1304 02 N A PAIRGAIN TECHNOLOGIES INC ENGINEERING PLANT SERIES TECHNICAL PRACTICE SECTION 363 704 102 02 Revision History of this practice Re...

Page 2: ...S TECHNICAL PRACTICE Two types of messages identified by icons appear in the text A note informs you of special circumstances Cautions indicate the possibility of damage to equipment or the possibilit...

Page 3: ...C 704 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 The channel unit provides metallic test ac...

Page 4: ...dications for the FLC 704 Channel Unit front panel LEDs Figure 1 FLC 704 Front Panel Table 1 FLC 704 Front Panel LEDs LED LED State Indicates Solid green Channel is off hook ACTIVE Fast flashing green...

Page 5: ...OT End to End Loss 2 5 dB 1 0 DC Off Hook Current 30 mA Channel Signature Tip Ring 475 k 1 Tip Ground 332 k 1 Ring Ground open COT 20 Hz Input Impedance 0 5 REN Environmental Operating Elevation 200 f...

Page 6: ...Group 3 facsimile or high speed modem operation on all channels 4 2 System Flex Configuration Figure 2 shows a typical PG Flex system that consists of COT Two complete systems may be installed in a 19...

Page 7: ...the HDSL lines do not require any special conditioning and may include unterminated bridge taps but cannot include load coils Table 2 PG Flex Distances Loop Length Wire Gauge 16 32 Channel System Res...

Page 8: ...rd disconnect detects a subscriber test access signal detects metering tones provides loop closure 5 2 A block diagram of the FLC 704 Channel Unit is shown in Figure 3 One 8 Channel COT Channel Unit s...

Page 9: ...re the equipment for a prolonged period store the equipment in its original container 7 Turn Up and Testing 7 1 Install COT Channel Units 1 Insert each FLC 704 Channel Unit into the COT shelf All LEDs...

Page 10: ...resent at the RT re insert the original Channel Unit and Line Unit Test for ringing at the COT 4 Test for ringing into the COT from the CO switch If no ringing is present refer the trouble to the CO s...

Page 11: ...uestions This system is available 24 hours a day by calling 714 730 3299 Transmission speeds up to 28 8 kbps are supported with a character format of 8 N 1 E CERTIFICATION AND WARRANTY 10 Certificatio...

Page 12: ...ranty 11 3 If a unit needs repair call PairGain for a Return Material Authorization RMA number and return the defective unit freight prepaid along with a brief description of the problem to PairGain R...

Page 13: ...Revision 02 January 12 1998 Section 363 704 102 02 PG Flex FLC 704 List 2 PairGain Engineering Plant Series Page 11...

Page 14: ......

Reviews: