Four-Channel Digital Video Recorder
5
RS232 Port
A second 9-Pin male plug is provided for RS232C serial communication for either an external
modem connection or a remote controller connection.
Power In
The power connector is provided for connecting DC 24 volt power supply. Connect the DC
power cord of the adaptor to the DVR, and connect the AC power cord to the adaptor and then
to the wall outlet. AC input specifications of the provided adaptor are 100~250 VAC, 50~60
Hz and 1.0 A. The output specifications of the adaptor are 24 VDC and 2.9 A.
Terminal Strip Connections
Alarm In
Four alarm inputs (1-4, 2-ground) are provided for manual alarm activation. The inputs
accept switch closures (door contact, panic buttons) or TTL (transistor-to-transistor) open-
collector input signals.
Alarm Out
Two external alarm outputs (both either NC or NO contacts) and one internal buzzer (ARI, G)
for alarm indication are provided. The alarm status is monitored using the alarm output
connected to a visual or audible indicator (flashing light, bell) and the internal buzzer.
Pressing
ALARM
resets the alarm (both alarm outputs, and internal buzzer) status by releasing
alarm output during alarm activation. Permitted current is up to 0.6 A for 125 VAC or 110
VDC, 2 A for 30 VDC.
NOTE: The NTSC/PAL switch is located between RS232 plug and Network Port, and
Factory Reset push button is between Network Port and Modem Port.
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