Bard MULTI-TEC W18ABP Series Literature Assembly page 91

The steps outlined on the following pages show how to connect the communication wiring using the daisy chain
method shown in Figure 18. If using the alternate method (as shown in Figure 19), the connections to the controller
and each wall-mount unit will be the same but the filters need to be placed in the positions shown in Figure 20.
1. Using the field-provided shielded cable, make a small service loop after entering the controller and attach the provided
EMI filter at the intersection of the loop.
2. Connect one wire to terminal #56 (negative), the other wire to terminal #57 (positive) and the drain wire to ground
terminal #60.
37
32 33 34 35 36 38
To Wall-Mount Unit 1
Control Board RS485
Manual 2100-713A
Page 28 of 44
Communication Wiring: Termination at the Controller
39 40 41 42 43 44 45
FIGURE 21
46 47 48 49 50 51 52
-
53 54 55 56 57 58 59
+
+
–
60 62 61 64
63
G
66