Xerox Document Centre 420, User Manual

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