Interconnecting Cards; Figure 2-18. Assembling / Disassembling The Led Display Card - Simplex 4100U Installation & Maintenance

Fire indicator panel, fire alarm system
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Step 6. Installing LED/Switch Modules into Expansion Bays (4100U),
Continued
Changing Display
Card LEDs,
(continued)
Interconnecting
Cards

Figure 2-18. Assembling / Disassembling the LED Display Card

User interface wiring consists of connecting the LED/switch controller card to the
expansion bay's power distribution interface (PDI), and connecting display cards to each
other. This section describes both procedures.
2-25
Continued on next page

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