Panasonic AK-HC1500G Operating Instructions Manual page 49

Setting of menu items
 SETTING menu
[5] PROTOCOL
PROTOCOL [1 to 4]
For selecting the remote control
communication system in accordance with the
system connected.
1: Information camera communication
protocol (EIA4)
For connecting the AK-HRP150
2: Information camera communication
protocol (EIA)
For connecting a PC
3: Convertible PC control protocol (EIA4)
For connecting the AW-CB400
(baud rate fixed at 9600 bps)
4: Convertible PC control protocol (EIA)
For connecting the AW-PH400 pan/tilt
head (baud rate fixed at 9600 bps)
The protocol is actually switched after the
power has been turned off and back on.
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