Revo R16/8/4/DVR - Manual (Page 11)

Digital Video Recorder
5
NC/NO (Normally Closed/Normally Open): Connect the device to the C (Common) and NC (Normally Closed)
connectors or C and NO (Normally Open) connectors. NC/NO is a relay output which sinks 0.5A@125VAC (NC)
and 1A@30VDC (NO).
ARI (Alarm Reset In): An external signal to the Alarm Reset In can be used to reset both the Alarm Out signal
and the DVR’s internal buzzer. Mechanical or electrical switches can be wired to the ARI (Alarm Reset In) and GND
(Ground) connectors. The threshold voltage is below 0.3V and should be stable at least 0.5 seconds to be detected.
Connect the wires to the ARI (Alarm Reset In) and GND (Ground) connectors.
Connector Pin Outs: AI (1 to 16) Alarm Inputs 1 to 16
GND Chassis Ground
ARI Alarm Reset In
NC Alarm Out (Normally Closed)
C Common
NO Alarm Out (Normally Open)
Network Port
The DVR can be networked using the 10/100Mb Ethernet connector. Connect a Cat5 cable with an RJ-45 jack to the
DVR connector. The DVR can be networked with a computer for remote monitoring, searching, configuration and
software upgrades. See the Network Setup section in this chapter for configuring the Ethernet connections.
CAUTION: The network connector is not designed to be connected directly with cable or wire
intended for outdoor use.
Factory Reset
The DVR has a Factory Reset switch to the left of the Alarm Output connector on the rear panel. This switch will
only be used on the rare occasions that you want to return all the settings to the original factory settings.
CAUTION: When using the Factory Reset, you will lose any settings you have saved.
To reset the unit, you will need a straightened paperclip:
Turn the DVR off. Æ Poke the straightened paperclip in the unlabeled hole to the left of the Alarm Output connector,
and turn the DVR on. Æ Hold the switch until the DVR turns on and the live monitoring screen appears. Æ Release
the reset switch. All of the DVR’s settings are now at the original settings it had when it left the factory.
Connecting to the RS-485 Port
The RS-485 connector can be used to control PTZ (pan, tilt, zoom) cameras. Connect TX+/RX+ or TX-/RX- of the
control system to the RX+/TX+ or RX-/TX- (respectively) of the DVR. See the Camera Setup section in this chapter
of this manual and the PTZ camera manufacture’s manual for configuring the RS-485 connection.