PairGain PG-Flex FRC-754 L4 Скачать руководство пользователя страница 1 | Manualshive

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Model

List Number

Part Number

FRC-754

4

150-1354-04

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Содержание PG-Flex FRC-754 L4

Страница 1: ...ANNEL REMOTE TERMINAL LOOP START GROUND START POTS UNIT PAIRGAIN TECHNOLOGIES INC ENGINEERING SERVICES TECHNICAL PRACTICE 363 754 104 01J SECTION 363 754 104 01 Model List Number Part Number FRC 754 4...

Страница 2: ...n contained in this document is company private to PairGain Technologies Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent of PairGain O...

Страница 3: ...4 List 4 June 22 1998 iii USING THIS TECHNICAL PRACTICE Two types of messages identified by icons appear in the text Notes contain information about special circumstances Cautions indicate the possibi...

Страница 4: ...Start Operation 4 Ground Start Operation 6 CLASS Features 7 Forward Disconnect 7 Installation and Test ___________________________________________________________________ 8 Unpacking 8 Installing 8 P...

Страница 5: ...4 provides metallic access to the subscriber line connection through an optional metallic bypass pair Features of the PG Flex FRC 754 List 4 channel unit are eight loop start or ground start POTS sub...

Страница 6: ...ough 8 Fast flashing green Channel is in test access mode Slow flashing green LED follows the ring signal Off Channel is on hook idle FAULT Red Fault detected by the unit See Table 10 on page 10 for t...

Страница 7: ...Ringer Output 40 V RMS 3 lines simultaneously 5 REN each End to End Loss 2 5 dB 1 0 dB at 1004 Hz Lightning Protection Meets all requirements GR CORE 1089 Section 4 Environmental Operating Elevation 2...

Страница 8: ...subscriber lines or ground start for PBX lines Each FRC 754 List 4 circuit has an associated LED that indicates when the line is off hook idle ringing or under test see Table 1 on page 2 Loop Start Op...

Страница 9: ...rcuit interactions Table 3 Circuit Interactions When a Subscriber Initiates an Outgoing Call Loop Start Operation CO Switch FRC 754 List 4 COCU FRL 754 List 4 RTCU Subscriber CO Idle No ringing No rin...

Страница 10: ...d outgoing calls may occur simultaneously on the same line Glare occurs when both ends of a telephone line or trunk are seized at the same time CO sends dial tone and grounds the Tip to signal the PBX...

Страница 11: ...s activated the CO generates analog signalling toward the PBX between the first and second bursts of the ringing signal Forward Disconnect The forward disconnect function releases a called line that w...

Страница 12: ...do not follow the above sequence see Table 10 on page 10 2 After the system has powered up established HDSL synchronized communications and no calls are in progress verify that the channel unit front...

Страница 13: ...ss of the call refer to Table 1 on page 2 for front panel indications Place an incoming call to each subscriber circuit provisioned and verify that the ACTIVE LED tracks the progress of the call refer...

Страница 14: ...still not present replace the RT Line Unit 3 If ringing is still not 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 fro...

Страница 15: ...ransmission speeds up to 28 8 kbps are supported with a character format of 8 N 1 Warranty PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of...

Страница 16: ...ppropriate instruction manual for the unit you are installing to get information on Cabling Correct connections Grounding Modifications The FCC requires the user to be notified that any changes or mod...

Страница 17: ......

Страница 18: ...Corporate Office 14402 Franklin Avenue Tustin CA 92780 Tel 714 832 9922 Fax 714 832 9924 For Technical Assistance 800 638 0031...

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