Step 7. Interconnecting Modules And Bays - Simplex 4100ES Installation Manual

5.11

Step 7. Interconnecting Modules and Bays

Each card has to be interconnected with every other card in its bay. At the same time, bays in the FACU also have to be connected
together. Read this section to ensure that cards and bays are interconnected.
5.11.1 Guidelines
Review the following guidelines before interconnecting modules and bays.
• The FACU power supply provides 24 VDC power to the CPU motherboard.
• The CPU motherboard provides 8 V (3 A capacity) for use by Legacy 4100 cards. 24 VDC card power is routed through the
motherboard for optional card use.
• 4100 internal comms and power are harnessed to other bays. Do not connect the 8 V at P7 to an 8 V converter on a Goldwing or
remote interface card.
• 24 VDC card power from the FACU power supply is rated at 2 A.
• Additional harnesses are provided with the shipping group, but may not be used at the time of installation. These harnesses should
remain with control equipment for future use when necessary.
5.11.2 Power Distribution Module Connections
The power distribution module (PDM) connects to the ES-PS in each bay. It also connects to EPS, SPS, RPS, or XPS in legacy systems. One
PDM is used per back box. Use the instructions below to properly connect the PDM to each bay.
1. Route the black and white AC power wires to the supplied ferrite bead. Loop the wires twice through the bead as shown in Figure
29.
2. Wire 120 VAC to the PDM, keeping AC wires at least 1 inch away from all other wires. AC power must stay in the right side of the
cabinet, in the non-power-limited area.
3. Connect batteries to P5 on the PDM using Harness 734-015. Bend the wire near the PDM so that it occupies the back of the
cabinet.
4. Connect the PDM to the power supply using Harness 0734-257 for 120 V systems (0734-335 for 220 V versions, 0734-356 for
230 V versions, 0734-357 for 240 V versions).
- Feed red and black wires through the side rail to the front of the power supply to prevent wire damage when the front panel is
inserted.
- Connect the separate red and black wires (with yellow female terminations) to plugs J2 (black) and J3 (red) on the ES-PS.
- Connect the white and black wires, which terminate together in a white snap-on connector, to the bulkhead connector at the
bottom of the ES-PS assembly.
page 54
Figure 29: Wiring Looped Through Ferrite Bead
4100ES Fire Alarm System Installation Guide
574-848 Rev. BQ