Power Connections - Honeywell Notifier LCD2-80 Instruction Manual

Power Connections

EIA-485
Connections on
LCD2-80
NFS-320, NFS2-640
NFS2-3030
NCA-2
Table 2.2 EIA-485 Control Panel Connections (Terminal Mode)
2.2 Power Connections
The LCD2-80 can be powered by a +24 VDC power supply listed for fire
protective signalling 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.
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.
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.
Maximum LCD2-80 current draw from power supply under normal
conditions is 84 mA.
Maximum LCD2-80 current draw from power supply during Lamp Test is
105 mA.
Maximum LCD2-80 current draw from power supply under Alarm
conditions (piezo on) is 98 mA.
Maximum LCD2-80 current draw from power supply under Alarm
conditions (piezo off) is 85 mA.
Maximum current draw from the control panel's secondary power source
(batteries) under loss of AC power (piezo on) is 45 mA.
Maximum current draw from the control panel's secondary power source
(batteries) under loss of AC power (piezo off) is 28 mA.
Include these currents in your power supply loading and battery
calculations.
NOTE: If the LCD2-80 is powered from a seperate supply from the
control panels, the suppling commons should be tied together and
ground fault detection. Disabled in all but the primary supply.
LCD2-80 Instruction Manual — P/N 53242:A 08/18/2009
OUT(-) RET(-)
TB11-2
TB9-2
TB9-2
The LCD2-80 & Terminal Mode
OUT(+)
TB11-4 TB11-1
TB9-4 TB9-1
TB9-4 TB9-1
RET(+)
TB11-3
TB9-3
TB9-3
15