Simplex 4100ES Installation Manual page 168

22.3.2 SPS CPU Card Interconnections in Expansion Bays
Expansion bays comprise all bays other than the CPU bay. If you are installing a two- or three-bay FACU, you will be using expansion bays
(refer to Figure 30).
The power distribution interface (PDI) is mounted to the back of each expansion cabinet. The PDI contains slots for up to eight 4" X 5"
cards. Since the PDI carries power and data across the entire bay, it solves most interconnection issues, especially between 4" X 5" cards.
Refer to Step 6. Installing Modules into Expansion Bays
following variations:
• In a remote expansion cabinet, a transponder interface card (TIC) requires additional interconnections. This occurs in MINIPLEX
systems. Refer to Installing 4100ES MINIPLEX
• Regular motherboards require non-PDI interconnections to each other and to the CPU. Refer to
Expansion Bays.
22.3.3 SPS CPU Basic Bay-To-Bay Interconnections
Panels with two or three bays must be interconnected properly so that they function together as the central point of a standalone or
MINIPLEX system, or as a node on a network.
Generally, the CPU bay connects to a local expansion bay using a circuit from CPU to the expansion bay's PDI. If there is a second
expansion bay, the PDI on the first expansion bay connects to the PDI on the second.
Note: Interconnections can become more involved if regular motherboards are used. Refer to "Step 5: Installing Modules into Expansion
Bays" if this is the case.
• To connect from the CPU bay to an expansion bay, route the 734-008 Harness from P2, P3, or P4 on the CPU motherboard to P1 on
the PDI in the adjacent bay.
• To connect two adjacent expansion bays, route the 734-008 Harness from P2 or P3 on the first PDI to P1 on the PDI in the next bay.
Jumpers P4 and P5 are set to positions 2 and 3 (right) to provide card power to the bay from a power supply (SPS, XPS, or RPS) located
in the same bay. Jumpers P4 and P5 are set to positions 1 and 2 (left) to provide card power to the bay from P1 on the PDI.
Figure 95 shows the interconnections between three bays in a host panel.
For information on remote expansion bays, refer to
page 166
for instructions on mounting 4" X 5" cards to the PDI. Also bear in mind the
Components.
Figure 95: Bay-to-Bay Interconnections
Appendix K: Installing 4100 FACU Components
4100ES Fire Alarm System Installation Guide
Step 6. Installing Modules into
(Non-4100ES/4100U).
574-848 Rev. BQ