User's Manual

Table Of Contents

EX7100 Technical Manual - Introduction

1.2.2 Six low bit rate voice/fax/data channels

With the addition of an internal multiplexer/line interface card the EX7100 provides six,

low bit rate, voice/fax/data channels.

This option is designed to replicate six individual standard wireline telephone circuits and

caters for both 2-wire and 4-wire + E&M (with additional card) telephone operation. Line

drivers and ringers are integral to the card, allowing telephone equipment to be situated

up to 5 kilometres from the terminal when used with external lightning protection.

Most equipment normally connected to telephone lines may be connected to each

channel of the EX7100, including payphone (12/16 kHz meter pulse or line reversal),

electronic funds transfer terminals, G3 fax and data traffic at up to 9600bps.

Note that provision of voice/fax data traffic requires external telephone modems at each

location. Modem/Fax data rate is limited to 9600bps.

The six-channel version of the EX7100 is available in two configurations:

Exchange Terminal

Provides connection for six telephone circuits (either 2-wire or 4-wire +E&M) from the

PSTN. Using two exchange terminals, the link may be configured in software for Point-to-

Point Data terminal operation, providing six 9600bps data channels with 4-wire + E&M

interface.

Subscriber Terminal:

Provides connection for Subscriber equipment (2-wire), such as telephones, facsimile,

modem, etc.

Note: The telephone interface circuit boards within these terminals are specific to each

terminal type, i.e. an Exchange terminal cannot be linked as a Subscriber terminal,

or vice versa.