V-Tech VT27 Manual - Manual (Page 4)

4. System Wiring
Terminal Discription
Basic Connection
JS-OS1
Input 1 Input 2 Output
JS-AP
Handset 75 Ohm Power
JP/VD DC-IN
DC- DC+
JS-OS2 JS-VD
1R
12V 2W 4B
2W 3Y 4B 1R 2W 3Y 4B 1R 2W 3Y 4B
1) DC-IN:Power supply connection port
2) JP/VD:JP/VD is used for setting the video impedance.
3) JS-AP:Audio phone or VT-RLC connection port
4) JS-OS1:The first door station connection port
5) JS-OS2:The second door station connection port
6) JS/VD:Extended slave monitor connection port
AC ~
1R 2W 3Y 4B 1R 2W 3Y 4B
1
2
3
4
Door station
B
la
ck
Y
el
lo
w
R
ed
W
h
it
e
B
la
ck
Y
el
lo
w
R
ed
W
h
it
e
Reserve
JS-OS1
Input 1
Input 2
Output
JS-AP Handset
75 Ohm
Power
JP/VD
DC-IN
DC-
DC+
JS-OS2
JS-VD
1R
12V
2W
4B 2W
3Y
4B
1R
2W
3Y
4B
1R
2W
3Y
4B
-3-