8 LCD2-80 Instruction Manual — P/N 53242:B5 07/26/2019
Product Overview Connections
Power Connections (TB1)
The LCD2-80 can be powered by a +24 VDC power supply listed for fire protective signaling use that is power limited and regulated
with a voltage range of +17 VDC to +28 VDC. Power can also be provided by an FACP with an integral power supply as long as the
LCD2-80 is listed for use with the FACP.
The power run to the LCD2-80 must be power-limited but need not contain a Power Supervision Relay since loss of power is inherently
supervised through communication loss.
Figure 1.3 Supplying Power to the LCD2-80
1.5.2 NUP Connection - J3
Connection for standard NUP cable for VeriFire®Tools downloads.
1.5.3 AKS-1B Keyswitch - J2
Keyswitch connector for an optional AKS-1B keyswitch. When the two pins on this interface are shorted, all five keys on the membrane
panel will be ignored by the LCD2-80.
CAUTION: RISK OF EQUIPMENT DAMAGE!
DO NOT POWER THE LCD2-80 FROM ANY UNFILTERED POWER SOURCE DESIGNED FOR POWERING NAC
DEVICES. THIS MAY DAMAGE THE EQUIPMENT.
NOTE: If the LCD2-80 is powered from a separate supply from the control panels, the supplying commons should be tied together and
ground fault detection should be disabled in all but the primary supply.
24 VDC (+) Common (-)
FCPS-24S6/8 TB4-9 TB4-10
NFS-320, NFS2-640
TB10 Nonresettable 24VDC+ TB10 Nonresettable 24VDC-
NFS2-3030, NCA-2 TB6+ TB6-
Table 1.1
7
6
5
4
3
2
1
TB1
From Main Power Supply
(-) Common
(+) 24 VDC Power
(+) (-) To next LCD2-80
LCD2-80
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