11
COM COM
CLOCK
RESET OUT
CLOCK
RESET IN
COM
CLOCK
RESET IN
COM
EXT REC
IN
COM
CLOCK
RESET IN
3 CONNECTIONS (contd.)
3-3 Connecting signal input/output terminals
[CAM SW OUT] camera switching signal
output terminal
To control the camera switching timing from this unit.
[ALARM RESET] alarm signal reset input
terminal
To stop alarm recording when a signal is received during
alarm recording.
[CLOCK RESET IN] clock reset input terminal
To set the clock to the master clock or other device’s clock
using a signal from an external device.
[EXT REC IN] external recording control signal
input terminal
Recording can be started, stopped or controlled with an
external signal.
Switch
External
master
clock
External control
device
Starts alarm or sensor recording when a signal is received.
[HDD FULL OUT] HDD full-output terminal
Outputs a signal during recording when the hard disk is full.
* Signal output is possible only when menu switch <HDD
FULL OUT> is set to “ON” and <REPEAT REC> is not set
to “OFF”.
[CLOCK RESET OUT] clock reset terminal
Outputs a clock reset signal. It is possible to set the clock of
the digital video recorders following this unit to that of this
unit in second unit.
[ALARM IN] alarm signal input terminal
Last digital video
recorder
External interface specifications example
● Use each device rated for using situation.
Control signal
COM
CAM SW
OUT
Frame switcher’s
camera switching signal
input
COM
Vcc: 5 V-12 V
Vcc
ALARM
RESET
ALARM
IN COM
Frame switcher/alarm sensor’s
alarm output terminal
External
interface
This unit
Second digital
video recorder
Power supply
(Lamp, etc.)
Relay
HDD full lamp
Reference: "3-2 Connecting more than one camera (using an
external switcher)" on page 10.
