Hitachi HV-D20P Operation Manual page 78

REMOTE connector (HR10A-7R-4S)
Pin No. Signal designation
1 +12V output
2 RXD/SD input
3 TXD/SD output
4 GND
Plug: HR10A-7P-4P
4
3
1
2
LENS connector (D4-151N-100)
Pin No. Signal designation
1 +12V
2 NC
3 Control
4 GND
Plug: E4-191J-100
1
2
3
4
65