8-11
Chapter 8 EPS and IDNet 2 Wiring
IDNet 2 Card Wiring (continued)
Class A Wiring To wire the Loop terminals as a Class A circuit:
Figure 8-8. IDNet 2 Class A Wiring
Class A wiring notes:
1. If no remote isolators or isolator bases are on the loops, device addressing can be assigned
without concern for sequence.
2. If remote isolators or isolator bases are on the loops, the required addressing approach is to
start from the “B” side and assign each successive isolator a higher address than the isolator it
proceeds.
1. Set the jumper assigned to the loop to the “A” position, as shown in
Figure 8-7.
• Loop A= Jumper P1 on the IDNet 2 card
• Loop B= Jumper P2 on the IDNet 2 card
• Loop C= Jumper P1 on the first IDNet Loop cards
• Loop D= Jumper P1 on the second IDNet Loop card
2. Shielded wire is not recommended. If shielded wires are present, cut and
tape off the shield to prevent it from coming in contact with other com-
ponents.
Figure 8-7. Class A
Jumper Setting
3. Route the wiring from the Primary Terminals (B+, B-) to the corresponding inputs on the first
device.
4. Route wiring from the first device to the next as in/out. See Figure 8-8. Repeat for each
device.
5. Route the wiring from the last device to the panel.
6. Connect the wiring to the corresponding Secondary Terminals (A+, A-).
+
1
2
12 1 2
IDNet 2 Card
Devices
18 to 12 AWG
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