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FIREFINDER SERIES II
INSTALLATION,
COMMISSIONING
&
OPERATION
4.16 Addressable Loop Termination Board (302-735)
The Addressable Loop Termination Board acts as the interface between the external addressable
devices and the control and monitoring functions of the FireFinder™. Each board provides
terminations for two loops. One slave CPU is required per loop. The 2 Addressable loops are
connected to TB1 and TB2.
Note:
Apollo devices L2 is +ve (positive), L1 is -ve (negative)
Connect the XP-95 / DISCOVERY loop to the panel as shown below.
AMPAC strongly recommend that the LoopManager test set is used to check that the Apollo loop
has been correctly installed and commissioned before c
onnecting it to the FireFinder™.
Loop Parameters
126 Apollo Devices
250mA Current Max
S/C protection circuitry activates at approximately 300mA
CONNECTIONS
CN1 / 3
To 302-699
CN2 / 4
27VDC in / out
TB1 / 2
To Addressable loop devices
A
B
A
B
C N 2
TB1
RV1
C N 4
F 1
26V ADJ
POWER
3A
REGULATED
27VDC In / Out
T0 SLAVE CPU
302-6692 CN1
T0 SLAVE CPU
302-6692 CN1
LOOP 1 ADDRESSABLE DEVICES
LOOP 2 ADDRESSABLE
DEVICES
LOOP NORMAL
LED A monitoring
each Loop is ON
LED A & B ON
indicates a fault
on the Loop
( S/C, O/C ) and
the Loop is being
monitored in
both directions
LOOP IN FAULT
F1: 3AMP M205 27V INTO
DC TO DC CONVERTOR
A
B
B
A
C
N
1
C
N
3
-
+
-
+
TB2
R +
L1
L2
- R
L1
L2
- R
L1
L2
- R
R +
R +
Wiring Shown
Above is for a
XP95 Circuit
with one Detector
Having LED
Monitoring
L2+ L1-
L2+ L1-
L2+ L1-
L2+ L1-
L1
L1
L1
L2
L2
L2
IN
OUT
IN
OUT
Figure 25: Addressable Loop Termination Board
