GRD Sense - Wiring Diagram

7
4.2 Wiring Diagram
Please be careful to wiring on polarity.
 Intercom wiring diagram with one monitor
intercom
inter power
audio phone
door 1door 2extension
inter audio
video I/O
ohm
impedance matching
audio I/O
audio 2
audio 1
data I/O
video 2
video 1
VCC 2
VCC 1
GND
GND
GND
GND
video out
CCTV 4
CCTV 3
CCTV 2
CCTV 1
1
2
Intercom
VCC
GND
Audio
Video
VCC
GND
Audio
Video
VCC
GND
Audio
 Intercom wiring diagram with master monitor and extensions (pay attention to the impedance matching switch)
intercom
inter power
audio phone
door 1door 2extension
inter audio
video I/O
ohm
impedance matching
audio I/O
audio 2
audio 1
data I/O
video 2
video 1
VCC 2
VCC 1
GND
GND
GND
GND
video out
CCTV 4
CCTV 3
CCTV 2
CCTV 1
intercom
inter power
audio phone
door 1door 2extension
inter audio
video I/O
ohm
impedance matching
audio I/O
audio 2
audio 1
data I/O
video 2
video 1
VCC 2
VCC 1
GND
GND
GND
GND
video out
CCTV 4
CCTV 3
CCTV 2
CCTV 1
intercom
inter power
audio phone
door 1door 2extension
inter audio
video I/O
ohm
impedance matching
audio I/O
audio 2
audio 1
data I/O
video 2
video 1
VCC 2
VCC 1
GND
GND
GND
GND
video out
CCTV 4
CCTV 3
CCTV 2
CCTV 1
(Master monitor) (Extension 1) (Extension N N≤3)
...
Intercom
VCC
GND
Audio
Video
VCC
GND
Audio
Video
VCC
GND
Audio
1
2
1
2
1
2