PairGain 150-1353-42 Скачать руководство пользователя | Manualshive

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363-753-142-01

Model

List Number

Part Number

CLEI Code

FRC-753

4B

150-1353-42

VARHCKTC--

PairGain

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FAULT

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CHAN UNIT

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Содержание 150-1353-42

Страница 1: ...RT GROUND START UNIT PAIRGAIN TECHNOLOGIES INC ENGINEERING SERVICES TECHNICAL PRACTICE SECTION 363 753 142 01 Model List Number Part Number CLEI Code FRC 753 4B 150 1353 42 VARHCKTC PairGain 1 A C T I V E 2 3 4 5 6 7 8 FAULT FRC 753 CHAN UNIT LIST ...

Страница 2: ...ained 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 Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered trademarks of their respective companies Revision Release Date Revisions Made 01 J...

Страница 3: ...any and to PairGain Order replacement equipment if necessary Check the packing list to ensure complete and accurate shipment of each listed item If the shipment is short or irregular contact PairGain as described in the Warranty If you must store the equipment for a prolonged period store the equipment in its original container Notes indicate information about special circumstances Cautions indica...

Страница 4: ...tions 5 Installation and Test ___________________________________________________________________ 6 Installing the FRC 753 into the RT Enclosure 6 Provisioning the FRC 753 6 Verify Operation 6 Troubleshooting ______________________________________________________________________ 7 Subscriber Drop Testing 7 Customer Reported Problems 8 Abbreviations _________________________________________________...

Страница 5: ...ubscriber line connection through an optional metallic bypass pair Perform metallic bypass testing either manually or through the Pair Gain Test Controller PGTC Features of the FRC 753 are eight LS GS POTS subscriber interfaces 64 kbps m Law Pulse Code Modulation PCM encoding front panel Active LEDs front panel Fault LED PGTC compatibility Custom Local Area signalling Services CLASS support for ex...

Страница 6: ...scriber Each FRC 753 detects loop current Ring tip Ring ground The subscriber line battery is supplied by a constant current supply It is sufficient to operate a telephone set over the indicated loop The battery feed can be disconnected and the loop opened to a drop connection when a forward disconnect signal is received from the FLC 703 The battery feed can also reverse the polarity of the output...

Страница 7: ...ition is a Tip lead open and Ring lead negative into the COT and Tip lead open and Ring lead negative at the RT The following occurs when a PBX requests service for an outgoing call by grounding the Ring lead at the RT FRC 753 signals the FLC 703 FLC 703 operates a Ring ground relay that requests dial tone from the CO this makes the circuit busy or seizes it for outgoing calls to prevent others fr...

Страница 8: ...ower 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 Table 1 FRC 753 Front Panel LEDs LEDs State Indicates ACTIVE 1 through 8 Solid green Channel is off hook Fast flashing green Channel is switched to the test pair Slow flashing green Channel is ringing Off Channel is on hook FAU...

Страница 9: ...inger 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 Operating Elevation 200 ft to 13 000 ft 60 m to 4 000 m Temperature 40 F to 150 F 40 C to 65 C Humidity 5 percent to 95 percent noncondensing Physical Characteristics Weight 0 6 lb 0 3 kg Height 12 0 in 30 5 cm Width 1 0 in 2 5 cm Depth 4 5 in 11 4 cm ...

Страница 10: ...is off no calls are in progress 2 Test circuits for loop start a Place an outgoing call for each subscriber circuit provisioned and observe that the Active LED tracks the progress of the call b Place an incoming call for each subscriber circuit provisioned and observe that the Active LED tracks the progress of the call 3 Test circuits for ground start circuits must be provisioned for ground start ...

Страница 11: ... 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 Activate test access through the RS 232 maintenance port located on the front of the COT Line Unit using an ASCII terminal The FRC 753 Channel Unit front panel Fault LEDs is On The FRC 753 has detected a fault Remove and re insert the Channel Unit If the Fau...

Страница 12: ...rom the CO switch If no ringing is present refer the trouble to the CO switch If ringing is present replace the COT Channel Unit Test again for ringing at the network interface If ringing is still not present contact PairGain technical assistance refer to Technical Support on Inside back cover 5 Verify the resistance of the copper loop between the RT Enclosure and the network interface is less tha...

Страница 13: ...g Services CO Central Office COLU Central Office Line Unit COT Central Office Terminal DTMF Dual Tone Multi Frequency LS GS Loop Start Ground Start MLT Mechanized Loop Testing PBX Private Branch Exchange PCM Pulse Code Modulation PGTC Pair Gain Test Controller POTS Plain Old Telephone Service RMA Return Material Authorization RT Remote Terminal ...

Страница 14: ......

Страница 15: ...Authorization RMA number at 800 638 0031 Return the defective unit freight prepaid along with a brief description of the problem to PairGain Technologies Inc 14352 Franklin Avenue Tustin CA 92780 ATTN Repair and Return Dept PairGain continues to repair faulty modules beyond the warranty program at a nominal charge Contact your PairGain sales representative for details and pricing FCC COMPLIANCE Th...

Страница 16: ...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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