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8 Terminal Adapters

TA(s) or Terminal Adapters allow the DVST to communicate over digital ISDN

telephone lines.

8.1 ISDN Connection (Terminal Adapter)

Connection to an ISDN line is via a terminal adapter and Port 0. On systems using dual

ISDN lines both Port 0 and Port 1 should be connected.

The type of cable required to connect to the terminal adapter can vary.

DUALISDN=

...Sets dual ISDN support ON or OFF

(default, on)

ISDN=

...Sets ISDN for ATMODE, DIRECT, X21 mode

(default, ATMODE)

DIRECT

DIRECT mode relies upon the terminal adapter dialling a stored

number or a network only accessing a single remote point. Also used

for Demo mode (chapter 7)

ATMODE

ATMODE refers to Hayes AT dialling where the numbers to be dialled

are stored in the DVST dialling menu, also used for Dedicated Micros

Terminal Adaptor TA04

Dedicated Micros Ltd Page 31

DVST Installation Guide Terminal Adapters

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Guardian Technologies , LLC Home Security System DVST User Manual Page 43