Technical Manual
FT420
– Iss 2.4
18
Table 6 Main Control Board Connections
4
Designator
Type
Pin
Usage
Label
Description / Max rating
TB1
Removable
screw
terminal
block
1
External Battery Circuit
Breaker Connection
+
24V
DC
@ 6A
2
-
3
Battery Connection
+
24V
DC
@ 5A
Wired to the battery charger current
limiter
4
-
5
Mains Power
Connection
+
28V
DC
+/-5% @ 5A
6
-
7
Earth Connection
EARTH
Sufficient Earth connection shall be
provided.
8
EARTH
TB2
Removable
screw
terminal
block
1
24V
DC
Auxiliary Power
+
24V
DC
@ 4A( in total)
2
-
3
+
4
-
TB3
Removable
screw
terminal
block
1
Warning output. (to
control electronic
sounders or speaker
lines)
+
Sounder output: 24V
DC
@ 2 A or
Speaker output: Dry-contact 100V RMS
@ 5A
2
-
3
Audio Line Input
+
100V RMS @ 5A.
Connected to the audio amplifier output
if using OWS.
4
-
5
Audio Amplifier Control
N/A
Connect to Brooks audio amplifier
Standby input.
TB4
Removable
screw
terminal
block
1
Built-In MCP Input
+
The MCP is normally installed to the CIE
front plate. The MCP wiring is inside the
CIE cabinet.
2
-
TB5
Removable
screw
terminal
block
1
RS485 Connection
+
Not used for external applications
2
-
3
G
TB6
Removable
screw
terminal
block
1
Zone 1 input connection
+
Compatible with approved detectors and
MCPs.
2
-
3
Zone 2 input connection
+
4
-
5
Zone 3 input connection
+
4
Abbreviation:
“Pin” = Pin No., “+” = Positive, “-” = Negative, “G” = Ground, “N/A” = Not Applicable, “N/O” = Normally Open,
“N/C” = Normally Closed, “C” = Common.
Содержание Firetracker FT420
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Страница 77: ...Technical Manual FT420 Iss 2 4 77 Figure 40 FT420 with Gas Kit Interface ...