Panasonic AK-HC1800N Operating Instructions Manual page 12

Major operating controls and their functions
 Tally output connector [TALLY OUT]
The R tally and G tally signals are output from this connector.
Pin No.
1
2 R_TALLY_OUT
 G_TALLY_OUT
 +12 V (500 mA Max)
 IRIS connector [IRIS]
Used to connect the IRIS control cables of the lens.
 Zoom/Focus connector [ZOOM/FOCUS]
Used to connect the zoom/focus control cables of lens.
 Optional card slot
Slot for inserting an optional card.
Note
 This product does not support the optional boards (AK-HHD1500G and
AK-HDC1500G).
Signal
GND
Pin No.
1 Return control
2
 UNREG GND
 Iris manual selection
5
6 UNREG 12 V
Pin No.
1 Focus control selection
2 Zoom control selection

 Forcible iris closing
5
6
Signal Pin No.
VTR-S/S
Iris control
Signal Pin No.
GND
Iris control
+Voltage
- 12 -
Signal
7 Iris follow
8 Iris auto selection
9 —
10 Zoom position information
11 Focus position information
12 NC
Signal
7 COM
8 Focus control
9 Zoom control
10 Iris control selection
11 COM +Voltage
12 COM –Voltage