CopperOptics 150-1354-01 Manual Download Page 3

Revision 02

January 12, 1998

Section 363-754-100-02

PG-Flex FRC-754 List 1

PairGain Engineering - Plant Series

Page 1

A.  PRODUCT OVERVIEW

1.  Description and Features

1.1

The PairGain® PG-Flex

™ FRC-754 List 1 Channel Unit provides eight POTS interfaces between a

PG-Flex Remote Terminal (RT) and subscribers.  The FRC-754 Channel Unit uses A-Law pulse code
modulation (PCM) encoding. The FRC-754 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 channel unit provides metallic test access to the subscriber line connection
through an optional metallic bypass pair.

1.2

Features of the PG-Flex FRC-754 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 150-1354-01

Page 1: ...754 Model List Number Part Number CLEI Code FRC 754 1 150 1354 01 N A PAIRGAIN TECHNOLOGIES INC ENGINEERING PLANT SERIES TECHNICAL PRACTICE SECTION 363 754 100 02 Revision History of this practice Rev...

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: ...el 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 channel unit provides metalli...

Page 4: ...indications for the FRC 754 Channel Unit front panel LEDs Figure 1 FRC 754 Front Panel Table 1 FRC 754 Front Panel LEDs LED LED State Indicates Solid green Channel is off hook ACTIVE Fast flashing gre...

Page 5: ...rvisory Range 960 ohms Maximum cable resistance minus 430 ohms for handset is 530 ohms RT Idle State Loop Voltage On Hook 40 Vdc Ring is negative with respect to Tip RT Loop Closure Off Hook Detection...

Page 6: ...ile 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 inch COT Shel...

Page 7: ...cted in Figure 2 the maximum distance between the COT and the RT is 10 7 kft 3 3 km assuming the HDSL lines are 24 gauge 0 5 mm Table 2 shows the maximum distance between the COT and RT for various ga...

Page 8: ...er loop to a metallic test pair protects against secondary surges 5 2 A block diagram of the FRC 754 Channel Unit is shown in Figure 3 One 8 Channel RT Channel Unit supports eight POTS interfaces 5 3...

Page 9: ...tronic plugs by their connector edges Do not touch components or circuitry 7 1 Install RT Channel Units 1 Insert each FRC 754 Channel Unit into the FRE 765 RT enclosure All LEDs on the Channel Unit wi...

Page 10: ...present at the RT reinsert 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...

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: ...tive will void the warranty 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...

Page 13: ...Revision 02 January 12 1998 Section 363 754 100 02 PG Flex FRC 754 List 1 PairGain Engineering Plant Series Page 11...

Page 14: ......

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