Rui Wiring - Simplex 4010ES IDNAC Installation Manual

6.4

RUI wiring

The CPU card's RUI channel supports the following devices:
• 4009T
• 4009 TPS
• 4602 Series RCU/SCU Annunciators
• 4606-9102 Remote LCD Annunciator
• 4100-7400 Series Graphic Annunciators
• 4100-9400 Series Remote InfoAlarm Command Center
Wire from the CPU card's RUI interface to the RUI terminal block (Figure 33). From there, wire to each RUI device. The wiring may be
Class A, Class B, or Class X:
Class A wiring allows devices to communicate with the FACU even in the event of a single open circuit somewhere in the loop. Class A
wiring requires that two wires are routed from the CPU card to each device, and then back again to the CPU card.
Class B wiring allows "T" tapping, and therefore requires less wiring distance per installation than Class A.
Class X wiring extends Class A survivability by isolating shorted segments from impacting the rest of the loop. Class X operation
requires that every device on the loop support short isolation, and as a result only the 4009 TPS and InfoAlarm User Interface can be
used in a Class X loop.
Class A and Class B wiring are shown below.
page 45
Figure 33: Location of the RUI terminal block
4010ES IDNAC Fire Alarm System Installation Guide
579-1150 Rev M