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Video Recorder - User Manual 24
Channel 4
Channel 3
Channel 2
Channel 1
4 to 20 mA output
Ground Terminal
+
-
Load
+
-
24V
12
11
10
9
8
7
6
5
4
3
2
1
2
Slot ID
NOTE - Channels not used as analog outputs can be used
to supply a transmitter with 24 Vdc power
.
Figure 2-4 AO Board Terminal Block Connections
2.5.6 Digital Outputs
There are three types of Digital Output (DO) boards which provide three types of Off/On control.
1. Relay (alarm) Output
2. DC Output
3. AC output
Figure 2-4 shows the terminal block connections for the DC output and AC output DO boards. See
Section 1 for details on all I/O board specifications.