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 SPECIFICATIONS

SIP398C Private Automatic Branch Exchange (PABX)

This computer-based course utilizes digital controlled modern PABX circuitry. On Panel SIP398-1, a Z80 CPU and EPROM interface with voice circuits to provide a PABX System having two trunk lines and four extensions. An external interface board enables the system to operate with or without the use of external telephone lines. The telephones interface with the panel using RJ11 modular jacks. The system is completely compatible with U.S. telephone systems and can be used on external telephone lines. The principles of branch exchanges using microprocessors are introduced in Panel SIP398-2 (PABX switching). The system also includes a public address system and many other features. Of significant importance is the diagnostic technique available with use of a computer. The panels also contain LEDs for diagnosing and isolating malfunctions. The panels interface with a computer which uses remote diagnostic techniques. The computer, via a modem, can be used to diagnose the PABX from any place where telephone lines exist around the world. The course provides for 75 hours of instruction.

The PABX System interfaces with the Microwave Communication System, Multiplexing Panels, and Digital Communications Systems.

EQUIPMENT SPECIFICATIONS

Panel 1 (SIP398-1) PABX Line Panel
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Contains voice circuitry with 2 company lines and 4 extension lines.

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All solid-state control circuits with LED Diagnostic Display.

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Panel operates as a Line Card.

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Panel is supplied with 3 telephones, plus an external Ring Generator Circuit.

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Dedicated Power Supply Base and Panel Base for use only with the PABX System.

Panel 2 (SIP398-2) Switching Panel
bulletContains Z80 Digital Switching Circuitry along with a variety of regulators and EPROM for programming the operation.

ELECTRICAL CHARACTERISTICS

  1. Two External Trunks and Four Internal Extensions

    2.

  2. Power Insertion Loss:
         Station to Station -8 dB nominal /1000 Hz
         Line-to-Station 0 dB at 1000 Hz
         Line-to-Line +8 dB at 1000 Hz
         (Call Forwarding)

  1. Station Loop Current: 25 mA

  2. Ring Voltage: 75 V RMS, 20 Hz

  3. Impedance: 600 W nominal, all lines

  4. Longitudinal Balance: 60 dB minimum

  5. Connections: RJ11 modular jacks

  6. Paging Amplifier: RCA jack

  7. Music-on-Hold: Conductor miniature jack

The equipment operates on 120/240 VAC, 50/60 Hz.

EQUIPMENT INCLUDED

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SIP398-1P PABX Line Panel

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SIP398-2P Switching Panel

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S398PSB PABX Power Supply Base

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S398PB PABX Panel Base

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S398-I Telephone Interconnect Board

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SIP398M Laboratory Manual

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SIC397-1 Electronic Telephone Handsets (3)

WEIGHT OF INCLUDED EQUIPMENT: 20 lbs (9.1 Kg)

REQUIRED EXTRA EQUIPMENT
An IBM-compatible 486 computer is required.

FUNCTIONS AVAILABLE
The following functions are available in the PABX Training System:

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Call Hold

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Call Hold Recall

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Call Forwarding

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Camp-On Call Waiting

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Data Security

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Dial Paging Access with

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Integrated Paging Amplifier

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Direct Inward Dialing

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Discriminating Ringing

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Do Not Disturb

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Last Number Redial

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Speed Dial

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Station Call Back

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Station Conference

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Station Transfer

bulletTrunk Call Back

ORDERING INFORMATION
For the complete system, including Power Supply Bases, order the PABX course, SIP398C. One manual is supplied with each Trainer. Order additional student manuals (SIP398CM).