Notifier FDU-80

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FDU-80 Annunciator

Typical Configuration

Document 51264 Rev A2 6/14/00 P/N 51264:A2

1.4 Typical Configuration

The FDU-80 Annunciator mimics the FACP display, has full point-dis-

play capacity and requires no programming.

Note that the FACP may

require programming to allow operation with the FDU-80. Refer to the

appropriate FACP manual for programming information.

The FDU-80

offers multiple annunciator locations with the capability of remote

Acknowledge, Signal Silence, Drill and Reset functions.

Notes:

1. 6,000 feet (1,800 m) maximum distance between the FACP and

the first FDU-80, between each FDU-80 and from the last

FDU-80 back to the FACP.

2. Up to 32 FDU-80 Annunciators may be used on the EIA-485 cir-

cuit. Refer to the specific FACP manual to determine the

maximum current available for powering the FDU-80. If

additional annunciators are connected, the FCPS-24 may be used

to supply additional power. Power supplies used for this purpose

must have their negative terminals commoned together.

3. Between each FDU-80 annunciator are four wires - a twisted

shielded pair for data communications and a pair for 24 VDC

power. The return circuit only requires two wires for data

communication supervision, wired from the last or only annunci-

ator on the line.

Te r m i n a l M o d e

EIA-485

Terminal Mode EIA-485

return (2-wires)

See Note 1

(2-wires)

24 VDC

FACP

Figure 1-4: Typical Configuration

FDU-80ms.cdr

FDU-80