JVC VR-N900U - Manual (Page 18)

Getting Started
10
Camera Control Terminals
Refer to the following table for connection cables. Carefully read the instruction manual supplied with the connected device.
Rear I/O Terminals
Camera control terminals
Signal code Pin number
RX+ 1
RX- 2
TX- 3
TX+ 4
GND 5
NC 6
NC 7
NC 8
NC 9
(D-Sub 9 pin, male)
Terminal Signal level Remarks
[ALARM IN]
*Set the output impedance to 10k
Ω
or less.
Make Contact Input
[EMERGENCY]
[ALARM RESET]
*Set the output impedance to 10k
Ω
or less.
Make Contact Input
[EXT REC IN]
*Set the output impedance to 10k
Ω
or less.
Make Contact Input
[OPE ON/OFF]
*Set the output impedance to 10k
Ω
or less.
Make Contact Input
[REC TALLY]
[ALARM OUT]
[WARNING OUT]
[OPTION OUT 1, 2]
Open collector
(DC15V, 10mA or less)
250ms or more
250ms or more
Break Make
250ms or more
250ms or more
1s or more
Approx. 50ms
Switches to off when
[OPERATE] is set at ON.
Switches to on when
[OPERATE] is set at OFF.
Make
External pull-up level
Individual output terminal and
COM terminal configure a
make contact. Individual output
terminals become “break” when
the VR-N900U is switched to
OFF.