Simplex 4100ES Installation Manual page 205

22.7.6.4 Class B Wiring
When wiring the loop for Class B circuits, both the B+, B- and A+, A- terminals are available for parallel connections. Within the IDNet 2
circuitry, A+ is connected to B+, and A- is connected to B- so circuits can stem from either one. Additionally, two wires can be connected to
each screw terminal.
To wire the Loop terminals as a Class B circuit:
1. Set the jumper assigned to the loop to the "B" position, as shown in Figure 124.
- Loop 1 = Jumper P1 on the IDNet 2 card
- Loop 2 = Jumper P2 on the IDNet 2 card
- Loop 3 = Jumper P1 on the left IDNet Loop card
- Loop 4 = Jumper P1 on the right IDNet Loop card
2. Route wiring from the Primary Terminals (B+, B-) to the corresponding inputs on the first device. It is possible to add up to 4
circuits per IDNet loop on the terminal block when using Class B wiring. See Figure 125 for the diagram.
3. Route wiring from the first device to the next as in/out as shown in Figure 125. Repeat for each device.
Class B wiring notes:
1. If no remote isolators or isolator bases are on the loops, you can assign device addresses in any sequence.
2. If remote isolators (4090-9116, 4090-9122) or isolator bases (4098-9766, 4098-9767, 4098-9777, 4098-9793) are on the loops,
it is recommended to address the isolators in ascending order: start at the output and assign each successive isolator a higher
page 203
Figure 124: Class B Jumper Setting
Figure 125: IDNet 2 Class B Wiring
4100ES Fire Alarm System Installation Guide
574-848 Rev. BQ