Installation & Commissioning of Control & Monitoring Add On’s
Page: 15
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 Module and the FACP Main Card.
Quiescent Current:
28.5mA
D10
D9
D14
D13
D12
D11
D6
D5
D4
D3
D8
D7
U4
U1
U2
U3
X1
Select
Manual Release
Activated
Initial Agent
Manual Hold
Auto / Manual
Auto Release
Activated
Reserve Agent
Trigger Zone
Disabled
Manual Only
Agent
Released
Blocked Mode
Common Fault
Disabled
Hold
Cutout
Cutout
SW2
CN2
TP
9
Key Switch
Address
Switch
RS485
&
+/- 27v
In
RS485
&
+/- 27v
Out
1
2 3
4
ON
K1
Termination
Link
CN8
Manual Release
CN6
CN7
Figure 21: Front Panel PCB Layout
Figure 22: Underside of the Front Panel PCB
Note
: If the keyswitch is not used CN2 will carry a link so as to activate the panel.
5.3
Local Control Station BRD25ARB - B
Except for the agent select button, and the keyswitch only offering the Auto/Manual and Manual
Only selection the Local Control Station has the same indicators and controls as the Agent
Release Module.
AUTO / MANUAL
MANUAL ONLY
MANUAL HOLD
MANUAL RELEASE
ACTIVATED
AUTO RELEASE
ACTIVATED
RESERVE AGENT
TRIGGER ZONE
DISABLED
INITIAL AGENT
AGENT
RELEASED
BLOCKED MODE
COMMON FAULT
DISABLED
M
A
N
U
A
L
E
L
E
A
S
E
R
MANUAL
MANUAL ONLY
AUTO / MANUAL
HOLD
Keyswitch
PCB
Manual Release
Switch
Figure 23: Local Control Station Layout
M
A
N
U
A
L
E
L
E
A
S
E
R
Manual Release
Pressing the push button starts the manual agent release
sequence. This two action safety feature prevents any accidental operation of the control and
should not be disabled.
MANUAL
HOLD
Manual Hold
When pressed places the system into manual mode and prevents the
initiation of the automatic discharge sequence.
