8
Wiring the Remote Display Assembly
Overview
The remote display assembly is wired as shown in Figure 6. To connect the remote display assembly to
the host panel, the TIC must be wired to the host panel via RUI cabling. This section explains how to
wire the RDA to the FACP, and how to set up a system with multiple transponders connected to the
same host panel. A single FACP can support up to 10 Flexible User Interface units. Refer to
4100ES Fire Alarm System Installation Instructions
(579-848) for more detailed instructions.
Figure 6. Remote Display Unit Interconnection Diagram
RUI Wiring
Guidelines
RUI can be wired either Class A or Class B. RUI comms are wired to the remote Flexible User Interface
box from the CPU motherboard to the TIC.
•
All wiring is between 18 AWG and 12 AWG.
•
All wiring is supervised and power-limited.
•
Maximum distance from the RUI controller to any RUI device is 2500 feet. Maximum total cable load is
10,000 feet, or .58uF, whichever comes first.
•
Maintain the correct polarity on all terminal connections.
•
T-tapping is only permitted on Style 4 wiring.
P9 on the CPU motherboard determines whether the RUI SHIELD signal is connected to 24 C or Earth.
Some devices that connect to RUI have inherently grounded shield terminals,in which case 24 C cannot
be used. If 24 C is used, a Negative Ground Fault will occur.
•
Position 1 – 2: SHIELD to 24 C (default).
•
Position 2 – 3: SHIELD to Earth.
Note:
Use the supplied ferrite beads with the TICs. Loop wires once through the supplied ferrite
bead(s). Refer to 579-848
Fire Alarm - Installation Instructions
.
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