LCD-80FC Indicator
Typical Configuration
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Document 53244 Rev. A 03/14/08 P/N 53244:A
1.4
Typical Configuration
The LCD-80FC Indicator mimics the FACP display, has full point-
display capacity and requires no programming.
Note that the FACP may
require programming to allow communication with the LCD-80FC.
Refer to the appropriate FACP manual for programming information.
The LCD-80F offers multiple indicator locations with the capability of
remote Acknowledge, Signal Silence, Drill and Reset functions.
Notes:
1. 6,000 feet (1,800 m) maximum distance @ 18 AWG (0.75 mm
2
)
between the FACP and the first LCD-80FC, between each LCD-
80FC and from the last LCD-80FC back to the FACP.
2. Up to 32 LCD-80FC Indicators may be used on the EIA-485 cir-
cuit. Refer to the specific FACP manual to determine the
maximum current available for powering the LCD-80FC. If
additional indicators 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 LCD-80FC indicator 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 indicator
on the line.
Terminal Mode
EIA-485
EIA-485
Terminal Mode EIA-485
return (2-wires)
See Note 1
(2-wires)
(2-wires)
24 VDC
24 VDC
FACP
Figure 1-5: Typical Configuration
FD
U
-8
0
m
s.
cd
r
Indicator
Indicator
Indicator
