Sony XC-HR90 Technical Manual page 8

VIDEO OUT/DC IN/SYNC connector pin assignments
Pin No. Camera sync output
1 Ground
2 +12V DC
3 Video output (Ground)
4 Video output (Signal)
5 HD output (Ground)
6 HD output (Signal)
7 VD output (Signal)
8
(RS-232C (Rx))
1
9
(RS-232C (Tx))
1
10 -
11 -
12 VD output (Ground)
1 Controlling via the RS-232C interface

2 Common ground for pins 7, 10, and 11

Factory mode settings of rear panel
Number
M GAIN control knob

Shutter speed/mode setting DIP switches

Mode setting DIP switches

75Ω termination switch

HD/VD signal input/output switch

30 fps/15 fps switch

RS-232C ON/OFF switch

This unit is shipped from the factory with the gain switch (DIP switch 9) being set to "FIX, " so the M GAIN control knob is

not operative unless the switch setting is changed. When the gain switch (DIP switch 9) is set to MANUAL, you can rotate
this knob to adjust gain over the range 0 to 18 dB.
External mode (HD/VD)
Ground
+12V DC
Video output (Ground)
Video output (Signal)
HD input (Ground)
HD input (Signal)
VD input (Signal)
(RS-232C (Rx))
1
(RS-232C (Tx))
1
-
-
VD input (Ground)
Switch name
Rear panel
Restart/Reset
Ground
+12V DC
Video output (Ground)
Video output (Signal)
HD input (Ground)
HD input (Signal)
Reset (Signal)
(RS-232C (Rx))
1
(RS-232C (Tx))
1
-
-
Reset (Ground)



Factory mode setting
- 
All bits are OFF (left).
ON (switch position: up)
HD/VD signal input (switch position: up)
30 fps (switch position: down)
OFF (switch position: down)
Overview
External trigger shutter
Ground
+12V DC
Video output (Ground)
Video output (Signal)
HD input (Ground)
HD input (Signal)
VD input (Signal)
(RS-232C (Rx))
1
(RS-232C (Tx))
1
WEN output (Signal)
Trigger pulse input (Signal)
VD input (Ground)
2
8