FireClass DUO-CEL - Functional Specification

EQUIPMENT: FIRECLASS DUO-CEL
PUBLICATION: OM_DUO-CEL_APP
ISSUE No. & DATE: 2 20/06/18
PAGE 8 of 46
2.2.3 Power Supply
The Power Supply is a self-contained switch-mode
unit and is mounted underneath the control board.
This unit provides 27.5VDC (nominal) at 1.5A to the
control board.
The output from the PSU is temperature
compensated, i.e. the battery charging voltage is
automatically adjusted to the safest optimum value
depending on the temperature of the batteries.
The PSU is connected to the control board by two
leads:
 The output lead has a 3-way socket, providing
0V, 28V and Mains Fault signals. (The
connector on the panel motherboard may
have a 4
th
pin for Functional Earth connection
from alternative power supplies).
 The Thermistor lead connects to the
Thermistor socket on the control board, the
Thermistor being situated on the control
board. (The Thermistor is used to monitor the
battery temperature).
The control board provides connections for the
standby batteries via spade terminals.
The enclosure accommodates 2-off 12V 3.4Ah
Sealed Lead-Acid Powersonic PS-1230 batteries.
NOTE: The battery clamp is not designed to clamp
batteries other than the PS-1230.
2.2.4 Repeater Panel
The repeater panel uses the same control board
and enclosure as the fire alarm panel. The
components for the redundant circuits [zones,
alarm circuits etc] are not present on the repeater
control board. The repeater and fire panel
mechanical arrangements are similar. The repeater
can be supplied with its own battery-backed
230VAC PSU, or without a PSU (powered directly
from the Fire Alarm panel’s Auxiliary DC output).
Repeaters are only supported on the 4-zone & 8-
zone panels.
Up to 3 repeaters can be connected to the panel.
The panel controls the Repeaters through the
RS485 serial communications link.
3. Functional Specification
3.1 Panel Input/Output List
See Table 1 below.
Table 1 – Panel Input/Ouput List
Input/Output
1-Zone
2-Zone
4-Zone
8-Zone
Detection zones
1
2
4
8
Multi-function Remote control
Input:
Class Change, Alert, Evacuate,
Silence alarms, Reset
1
1
1
1
Disablement Output
1
1
1
1
Evacuate Output
1
1
1
1
Buzzer Active Output
1
1
1
1
Standard Sounder circuits
2 @ 500mA
2 @ 500mA
4 @ 500mA
4 @ 500mA
Monitored Fire Signal Output
1 @ 250mA
1 @ 250mA
1 @ 250mA
1 @ 250mA
Auxiliary Fire Relay O/P
(Volt Free Change Over)
1
1
1
1
Auxiliary Fault Relay O/P
(Volt Free Change Over)
1
1
1
1
Auxiliary 28VDC Supply [fused]
1 @ 250mA
1 @ 250mA
1 @ 250mA
1 @ 250mA
Repeater facility
N/A
Two terminals for serial
comms.