Simplex 4100-0136 Installation Instructions Manual page 19

Field Wiring
Overview
RUI Style 4 (Class B)
Refer to the instructions in this section to connect the decoder module to field wiring for RUI and
system devices.
Before wiring, review the following guidelines:
•
For one decoder, the maximum RUI wiring distance is 2,500 feet for 12 and 14 AWG,
and 1,200 feet for 18 AWG.
•
RUI communications lines must be 18 AWG, twisted shielded pairs with a maximum
length of 2,500 feet.
•
Communications line power: 32 VDC (max), 130 mA (max), 1200 or 9600 baud.
•
Power to the decoder must be from a power supply commoned to the main power supply.
Decoder power is 85 mA at 28.5 VDC (nominal), 90 mA at 28.5 VDC (max), no loops
shorted. Alarm current depends on the duty cycle of the coded station. Maximum current with
one loop shorted is 163 mA at 28.5 VDC.
Use the instructions and figure below for Class B RUI wiring.
1. Make sure that SW9-1 and SW9-2 are ON, and that SW9-3 and SW9-4 are OFF.
2. Using the 733-716 Harness, connect to the "+" and "
3. Complete the wiring connection as shown in Figure 10.
Figure 10. Decoder Module Wired RUI Style 4 (Class B)
-
" RUI terminals as Figure 10 shows.
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