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Related Manuals for PairGain PG-Flex FRC-753 List 4C
Summary of Contents for PairGain PG-Flex FRC-753 List 4C
- Page 1 PG-F ECHNICAL RACTICE FRC 753 CHAN UNIT LIST FAULT Eight Channel Loop Start/Ground Start PairGain Remote Terminal Model: FRC-753 List 4C Part Number: 150-1353-43 CLEI Code: VARHCKTCAB ™®363-753-143-01%¨ 363-753-143-01...
- Page 2 Information furnished by PairGain Technologies is believed to be accurate and reliable. However, no responsibility is assumed by PairGain Technologies for its use, nor for any infringement of patents or other rights of third parties which may result from its use.
- Page 3 Upon receipt of the equipment: • 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 PairGain. Order replacement equipment, if necessary. •...
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Page 4: Table Of Contents
363-753-143-01, Revision 01 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Description and Features........................1 Applications ............................2 Operational Capabilities ......................2 FRC-753 Functions ....................2 Circuit Operation....................3 Front Panel ............................4 Specifications .............................5 Installation and Test___________________________________________________________________ 6 Installing the FRC-753 into the RT Enclosure...................6 Provisioning the FRC-753 ....................6 Verify Operation........................6 Troubleshooting ______________________________________________________________________ 7... -
Page 5: Overview
Overview VERVIEW ® ® The PairGain PG-Flex FRC-753 List 4C Loop Start/Ground Start Channel Unit provides eight loop start or ground start (LS/GS) channel interfaces for POTS between a PG-Flex Remote Terminal (RT) and subscribers. You can provision each of the eight circuits separately for either loop start or ground start services. Provisioning is done through the PG-Flex Line Unit Maintenance port. -
Page 6: Applications
Overview 363-753-143-01, Revision 01 PPLICATIONS The FRC-753 can be configured to provide service in any one of the following ways: • eight independent loop start subscriber lines • eight ground start PBX lines • a mixture of both loop start subscriber lines and ground start PBX lines Figure 1 shows a typical system with loop start and ground start services. -
Page 7: Circuit Operation
363-753-143-01, Revision 01 Overview Circuit Operation The following paragraphs define the FRC-753 circuit operation when using loop start for subscriber lines or ground start for PBX lines. Each FRC-753 circuit has an associated LED that indicates when the line is off-hook, idle, ringing, or under test. -
Page 8: Front Panel
Overview 363-753-143-01, Revision 01 RONT ANEL Figure 2 shows the FRC-753 front panel. Table 1 lists the different states and indications for the FRC-753 Channel Unit front panel LEDs. Figure 2. FRC-753 Front Panel To reduce power at the RT, the LEDs extinguish after a 2-minute timeout period. Press and hold the ACO button on the RTLU for two seconds to re-activate the LEDs for another two minutes. -
Page 9: Specifications
363-753-143-01, Revision 01 Overview PECIFICATIONS Electrical Characteristics 600 Ω Analog Impedance 530 Ω + 430 Ω handset Subscriber Drop DC Loop Current 23 mA Ringer Output 40 V RMS, 3 lines simultaneous, 5 REN each End-to-End Loss -2.5 dB ± 1.0 dB Lightning Protection GR-CORE-1089, Section 4 Environmental... -
Page 10: Installation And Test
Installation and Test 363-753-143-01, Revision 01 NSTALLATION AND Observe normal electrostatic discharge precautions when handling electronic equipment. Do not hold electronic plug-ins by their edge. Do not touch components or circuitry. FRC-753 RT E NSTALLING THE INTO THE NCLOSURE Insert the FRC-753 into the RT Enclosure and observe that all LEDs: •... -
Page 11: Troubleshooting
363-753-143-01, Revision 01 Troubleshooting ROUBLESHOOTING UBSCRIBER ESTING For PG-Flex subscriber drop testing from the CO, select and connect any subscriber drop to a metallic test pair at the RT. PG-Flex extends this connection to the COT where it can be switched onto the test access bus or to the corresponding subscriber line on the COT channel card. -
Page 12: Customer Reported Problems
RT Channel Unit check the loop for excessive length. If ring trip does not occur, replace the RT loop length too long Channel Unit. If ring trip still does not occur, contact PairGain technical • assistance (refer to “Limited Warranty” on page 11). -
Page 13: Abbreviations
363-753-143-01, Revision 01 Abbreviations BBREVIATIONS Alarm Cut-off Switch CLASS Custom Local Area Signalling Services Central Office COLU Central Office Line Unit Central Office Terminal DTMF Dual Tone Multi Frequency LS/GS Loop Start/Ground Start Mechanized Loop Testing Private Branch Exchange Pulse Code Modulation PGTC Pair Gain Test Controller POTS... - Page 14 Abbreviations 363-753-143-01, Revision 01 April 25, 2000 FRC-753 List 4C...
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Page 15: Product Support
PairGain during the 90-day warranty period is, at PairGain’s option, either (a) return of the price paid or (b) repair or replace of the software. PairGain also warrants that, for a period of thirty (30) days from the date of purchase, the media on which software is stored will be free from material defects under normal use. -
Page 16: Returns
PairGain’s Return Material Authorization (RMA) Department. Call or write PairGain’s RMA Department to ask for an RMA number and any additional instructions. Use the telephone number, fax number or email address listed below: •... -
Page 17: Fcc Classa Compliance
The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by PairGain Technologies, Inc. voids the user's warranty. All wiring external to the product(s) should follow the provisions of the current edition of the National Electrical Code. - Page 18 Corporate Office 14402 Franklin Avenue Tustin, CA 92780 Tel: 714.832.9922 Fax: 714.832.9924 For Technical Assistance: 800.638.0031 714.730.3222...