Ampac SP Series, Installation, Commissioning & Operation

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FireFinder
™
Installation Commissioning & Operation
Page 56
Agent Release Module PCB Layout
The PCB is fitted with two 2 x RJ45 connectors CN6 & 7 for power (27VDC) and communications (RS485)
for communications between the Agent Release Module and the FACP Main Control Board.
PCB
Agent Inhibit
Switch
Agent Release
MCP (Fit 10K EOL)
Service Inhibit
Keyswitch
In
Out
RS485
&
+/- 27v
In
RS485
&
+/- 27v
Out
1
2
3
4
ON
TB4
C N 3
CN1
LK2
TB2
TB1
SW 2
LK1
CN5
CN2
BZ1
+
CN7 CN6
+
AGENT
MANUAL HOLD/
REM OTE
MANUAL
-
+
RS 485 OUT RS 485 IN
-
+
KEYSWITCH
RELEASE
0 V +24V
C OM
LINK
TERMINATOR
SWITCH
ADDRESS
C O M
0 V +24V
BRD25ARB5-
I NTERLOCK
-
JTAG
INHIBIT
SWITCH MON
DISABLE
INHIBIT
S WI TCHES
F UTURE USE
EOL
COMMS IN / OUT
10K
EOL
MCP
AGENT RELEASE
Figure 63: Exploded View Figure 64: Underside of the Module PCB
Quiescent Current: 28.5mA
☞
Note : If the keyswitch is not used CN2 will carry a link so as to enable the panel.
10.5 Local Control Station ( LCS )
The Local Control Station is supplied fitted into an IP40 rated enclosure and has the same indicators as the
Agent Release Module within the Fire Alarm Control Panel (FACP) but no Agent Select button or Service
Inhibit keyswitch. Manual Release is by way of the yellow double action MCP.
The Comms line is RS485 and is cabled to the Agent Termination Board.
The Interlock is a monitored input with 10K
Ω
EOL. This input is used to determine if air conditioning
dampers and doors are closed but can be defaulted to the “ON” condition by terminating the input with a
2K2
Ω
EOL.
Double action switching is achieved by way of protective lift up covers
seen here and manual operation of the MCP or Inhibit switch.
To ensure correct operation and prevent accidental release of the
agent these covers
should not be disabled for any reason
Lifting the cover and pressing the MCP starts the manual agent
release sequence. This two action safety feature prevents any
accidental operation of the control and should not be disabled.
Figure 65: Local Control Station Layout
Local Control Station Terminal Blocks TB1 & TB2
TB2 Terminal Assignment TB1 Terminal Assignment
1 RS485 + In 1 +27V In
2 RS485 - In 2 0V In
3 RS485 Common 3 +27V Out
4 RS485 + Out 4 0V Out
5 RS485 - Out
6 RS485 Common
7 In
8 Interlock-
Quiescent Current: 18.5mA