Hitachi V-21W - Manual (Page 83)

72
Camera adapter (CA-Z31/CA-Z32)
DC IN (4 pin male) INTERCOM (5 pin male)
1
2 3
4
1 5
3
4 2
Pin Signal
1 SHIELD
2 T
3 GND
4 R
5 R
Pin Signal
1 GND
2 NC
3 NC
4 +12V input