Copier User Guide

Xerox Document Centre 440/432/430/426/425/420 User Guide Page 4-67

Fax

Connecting Fax to the ISDN (Digital Line) - Embedded

Fax (DC440/432/430/425)

The Xerox DC440/432/430/425 is capable of working at a

maximum speed of 33.6Kbps across a good quality, analogue

telephone line to another fax machine with the same speed

capability. This speed is dependant upon the quality of the

connection; the poorer the quality, the slower the speed.

ISDN (Integrated Services Digital Network) is a digital

alternative to the analogue network.

To connect the Xerox DC440/432/430/425 to the ISDN

requires the use of a Terminal Adapter (TA) to interface

between the machine’s analogue modem and the digital

network. Once connected to the TA, the machine will operate

in the same way as if it were connected to an analogue

telephone system. Fax documents can be sent or received in

exactly the same manner as before.

Currently, a standard ISDN line is capable of providing two

separate telephone connections, each of which can have its

own telephone number. The Xerox DC440/432/430/425 can

take full advantage of this feature and improve its productivity

by being fitted with a second fax option and connecting both fax

ports to a TA that supports two analogue ports. It will then be

capable of simultaneously sending and/or receiving two faxes

at the same time over the same ISDN line.

Terminal Adapters are available on the open market from a

variety of suppliers. Contact your chosen supplier to arrange

purchase and installation if required. In view of the number of

alternative suppliers available, exhaustive testing of every

available TA has not been undertaken by Xerox and therefore,

Xerox does not recommend any particular supplier. Some

products have, however, been tested by Xerox and have been

found to be compatible with the DC440/432/430/425 fax. The

local Xerox representative will be able to supply details of these

products.