V-Tech VT24 Manual - Manual (Page 4)

4. System Wiring
Terminal Discription
Basic Connection
JS /PS
JS /OS
1
JV D
JS /A P
P+
1R 2W 3Y 4B
2W 12V
4B
P-
JS
/PS
JSB
Jumper
JS
/OS1
JVD
JS
/AP
P+
1R
2W
3Y
4B
2W
12V
4B
P-
4BS
4BS1
SB_DET
CH_DET
GD
GD
12PS
1) JS/PS:Power supply connection port.(for built-in power supply model,this terminal
is not included.)
2) JVD:JVD is used for setting the video impedance. If only one monitor is installed,
keep the jumper. If multi Monitors are installed, be sure of taking away all JVD of
Monitors except the last one.
3) JS/AP:Audio phone connection port(VT672)
4) JS/OS1:The door station connection port
5) JSB:Addtional handset connection port(should take off the jumper)
AC ~
1R 2W 3Y 4B 1R 2W 3Y 4B
Door station
JS
/PS
JS
/OS1
JVD
JS
/AP
P+
1R
2W
3Y
4B
2W
12V
4B
P-
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
TALK
-3-