Rev 2.00 8 Document 900.0399
03/06
SENSOR IN Connect to external alarm sensor devices to signal the DVR to react to
events. Four sensors can be connected to the equipment sensor 1–4
dedicated to Video channel 1–4 respectively. Simple On/Off switching of
sensor inputs 1–4, normal open (NO) and ground connected to input
starts recording or normal close (NC) and ground connected to input
stops recording (see Recording Mode, page 15 to program sensor
recording).
Connect two wires to operate a sensor input correctly to the Terminal
block on the rear panel of the HRDE4X4. One ground wire between the
external device and to the HRDE4X4 ensures the ground reference
voltage is identical. This line connects to the terminal block G input.
Connect the other wire to be used to trigger the record condition to the
sensor input 1–4 connection on the terminal block.
ALARM
OUT
Connect to an external alarm device. On/off switching using an internal
relay, 0.5A/125V, 1A/30V. The relay is open when not triggered. The relay
can be triggered to close by either motion or a sensor input, if enabled in
the Recording Setup menu.
VIDEO IN Connect NTSC or PAL camera coaxial outputs (up to 4) to the BNC Video
In connectors.
Caution Do not mix NTSC and PAL cameras.
VIDEO OUT Connect to a monitor.
RS-232 For engineering use only.
VGA Connect to a VGA monitor.
Note When using a VGA monitor, make sure you set the VGA switch to
ON and power reset the unit (turn unit off then on).
SWITCHES
PAL Set to the ON position when PAL cameras are connected.
Note When you change the position of the PAL switch, reboot the DVR
to apply the new setting.
VGA Set to the ON position when a VGA monitor is connected.
Note When you change the position of the VGA switch, reboot the DVR
to apply the new setting. When VGA is enabled, the video out
connector (composite) is disabled. Also when the Video Out is
enabled, the VGA is disabled.
DC 12V Apply 12 VDC using the DC switching adapter supplied.
Table 2-1 Rear Panel Connections (Cont’d)
Connector Description
1GGGGOUT234
In 1
GND 1 GND 2 GND 3 GND 4
In 2 In 3 In 4
Sensor Input
Connections
ALARM
