Tyco installation manual RUI Wiring 4100U, Ferrite Bead

RUI Wiring (4100U)

Overview	The TIC must be connected to the host panel via RUI cabling. This section explains how
	to wire the two together, and how to set up a system with multiple transponders connected
	to the same host panel.
Wiring
	RUI cabling can be accomplished either through Class A or Class B wiring.
Configurations

Figure 4-4. The

Ferrite Bead

Class A wiring allows transponder cabinets to communicate with the FACP even in the event of an open circuit somewhere in the loop. Class A wiring requires that two wires are routed from the CPU motherboard to each TIC, and then back again to the CPU motherboard.

Class B wiring allows “T” tapping, and therefore requires less wiring distance per installation than Class A. Additionally, Class B wiring does not require end-of-line resistors, because each TIC communicates directly to the CPU.

Note: Use supplied ferrite beads with TICs. Loop wires once through the supplied ferrite bead(s) as shown in Figure 4-4.

The illustration below shows both types of wiring.

DASHED LINES ARE FOR CLASS A OPERATION

	B+ B- SHLD A+ A-
		RUI
CPU			1 2 3
MOTHE	RBOA	RD	P9
566-227			P1

•Wire size must be

between 18 AWG (0.8231 mm2) and 12 AWG (3.309 mm2).

•Maximum wiring distance: 2,500 feet (762 m).

•Maximum “T” tapping length:

10,000 feet (3,048 m).

•Maintain correct polarity on terminal connections.

•Do not loop wires under terminals.

			PRI SHLD SEC				PRI SHLD SEC
				RUI				RUI
		LED3	LED4	LED5			LED3 LED4	LED5
ADDRESS	MSB				ADDRESS	MSB
		TRANSPONDER INTERFACE					TRANSPONDER INTERFACE
		ASSY 566-094					ASSY 566-094
	LSB					LSB
LED1					LED1
LED2					LED2
	P1					P1
		P2		P3			P2

Figure 4-5. TIC Wiring to the Host Panel

Continued on next page

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