Cable Selection; Dsi Wiring; Figure 5: Relay Contact Arrangement - AMC 1ACOs Instructions Manual

AMC-1ACOs One Channel CO Monitor with DSI

FIGURE 5: Relay Contact Arrangement.

4.2.2 CABLE SELECTION

Connections from monitor are made through the DSI interface board. Connections should be
made using shielded, 2 or 3-conductor cable (depending on BAS or VFD output). For best
signal transmission and maximum noise rejection, use twisted pair, and run cable through steel
conduit (cable shield must be grounded at the monitor). For basic selection of cable size and
length (between monitor and BAS), it is recommended to use 20-16AWG wire on a distance no
longer than 2500'.

4.2.3 DSI WIRING

On the DSI board, the signal input/output terminal block (see Figure 2, item 15) allows a 4-
20mA output signal for wiring. Figure 6 shows a detailed depiction of a signal input/output
terminal block. Refer to Figure 10 for a detailed layout of the DSI board. The following
subsections detail the on-board sensor connection, building automation (BAS), and VFD wiring.
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