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2.5.4 Digital Inputs Boards
Three types of Digital Input (DI) boards accept three types of input signals.
1.
Logic Input
2.
DC Input
3.
AC Input
Each type is described on the following pages.
DI boards. See Section 1 for details on all I/O board specifications.
Contact Closure
120/240 VAC
2.5.5 Analog Outputs
The Analog Output (AO) board provides four outputs at 0 to 20 mA (configurable for 4 to 20 mA or any
span between 0 to 20 mA). When not used for an analog output, an output channel may be used to
power a transmitter with 24 Vdc power. The video recorder will support up to two AO boards, for a total
of eight outputs.
on all I/O board specifications.
Logic input
24 VDC
+
-
DC input
L1
L2
AC input
Figure 2-3
DI Board Terminal Block Connections
Figure 2-4
shows the terminal connections for the AO board. See Section 1 for details
Video Recorder - User Manual
Figure 2-3
shows the terminal block connections for all
12
SLOT ID
11
10
9
8
7
6
5
4
3
2
1
Installation
DI 6
DI 5
DI 4
DI 3
DI 2
DI 1
23
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