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Vs-900co outside line interface card connection – Toa VS-900 User Manual

Page 36

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36

12.8. VS-900CO Outside Line Interface Card Connection

12.8.1. Outside line and VS-900CO connection

The VS-900CO can be interfaced with up to 2 outside lines. Using DTMF tone dialing, it is compatible with
both loop and ground start systems.

[Connection]
Connect as shown below.

Outside line and VS-900CO connection

1 twisted pair cable

1 twisted pair cable

VS-900CO

CN1

CN2

CN3

CN4

GND *

1

GND

Front view of
the circuit board

Outside line

Line 1

GND *

1

GND

Outside line

Line 2

Lightening
protector *

2

Lightening
protector *

2

U.S.O.C. *

3

RJ11C or W

C/O Line 1
(or PBX
Extension)

C/O Line 2
(or PBX
Extension)

*

1

Ground this terminal only when using ground start system.

*

2

Install a protector if not yet installed by the telephone company.

*

3

This terminal must be installed by the telephone company.