Vs-900co outside line interface card connection – Toa VS-900 User Manual
Page 36
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.
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