Document 800-03097
Rev C
29
03/09
Installation
Note
All the connectors marked G are common.
NC/NO (Relay Alarm Output)
The DVR can activate external devices such as buzzers or lights.
Connect the device to the C (Common) and NC (Normally Closed) or C and NO
(Normally Open) connectors. NC/NO is a relay output which is specified to a maximum
of 2A@125VAC and 1A@30VDC. See
for configuring alarm
output.
ARI (Alarm Reset In)
An external signal to the
Alarm Reset In
can be used to reset both the Alarm Out signal
and the internal buzzer of the DVR.
Mechanical or electrical switches can be wired to the ARI (Alarm Reset In) and G
(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 G
(Ground) connectors.
Connecting to the RS485 Port
The DVR can be controlled remotely by an external device or control system, such as a
control keyboard, using RS485 half-duplex serial communications signals. You can
also use the RS485 connector to control PTZ (pan, tilt, zoom) cameras.
Figure 2-7
RS485 Port Connections
Connect RX-/ TX- and RX+/TX+ of the control system to the - and + (respectively) of
the DVR. See
and the PTZ camera or remote controller
manufacture's manual for configuring the RS485 connection.
R S 4 8 5
_
+
Summary of Contents for HRSD40F
Page 1: ...Document 800 03097 Rev C 03 09 User Guide HRSD40F Four Channel Digital Video Recorder ...
Page 2: ......
Page 3: ...HRSD40F DVR User Guide ...
Page 10: ...Contents 10 ...
Page 14: ...Figures 14 ...
Page 16: ...Tables 16 ...
Page 104: ...104 HRSD40F DVR User Guide ...
Page 134: ...134 HRSD40F DVR User Guide ...
Page 152: ...152 HRSD40F DVR User Guide ...
Page 155: ...Map of Screens Document 800 03097 Rev C 155 03 09 G Map of Screens ...
Page 156: ...156 HRSD40F DVR User Guide ...
Page 158: ...HRSD40F DVR User Guide 158 ...
Page 167: ......