User and Installation Manual
ALPHA 16 - 248 GBR
Conventional Modular Fire Alarm
Control Panel
Document :
MUALPHA16248GB
Index
: A
Date
: 26/03/07
Page
: 38/49
22 -
COMMON auxiliary alarm relay contact (max 7A 27V).
23 -
Positive 27.5V for powered sounders (power supply line supervised, positive active when there is an alarm).
24 -
Positive 27.5V for two-wire self-powered sounders (positive missing when there is an alarm).
25 -
Negative for powered sounders line (supervised power supply line, negative active when there is an alarm).
26 -
Auxiliary negative or for self-powered / powered sounders on unsupervised line (always negative).
27 -
Auxiliary positive 27.5V or for three-wires sounders with external command (always positive, max 5A).
JP1
Jumper to select fault relay contact. When closed in position 1-2 the fault contact on the terminal strip M1 – 16 is
normally open (N.O.). Vice-versa in position 2-3 it will be normally closed (N.C.)
J1
Jumper to select terminal type no. 9 (auxiliary input / programmable output)
J2
Jumper to select terminal type no. 10 (auxiliary input / programmable output)
J3
Jumper to select terminal type no. 11 (auxiliary input / programmable output)
J4
Jumper to select terminal type no. 12 (auxiliary input / programmable output)
When closed in position 1-2, the jumpers J1-J2-J3-J4 set the relevant terminals of M1 (9-10-11-12) as inputs. On
the contrary, if closed in position 2-3 they set the terminals as programmable outputs.
Í
NOTE
Terminals 9-12, if set as inputs, accept a maximum voltage level of 27V, while if set as outputs
(also true for terminal outputs 13 and 14) are of the ‘open collector’ type, i.e. they close as
negative when active and can drive a max load of 100mA to 27V.
CN1
Basic module RAIK-A cable connector.
CN2
SPI local bus connector for extension modules.
CNA
Power supply cable connector.
CNT
Earth
connection.
F1
Sounder power supply protection fuse (5AT)
F2
Line protection fuse 13V (1AT)
Í
NOTE
Do not remove or insert connectors CN1 and CN2 when the panel is in operation.
8-5-2
ACOUSTIC DEVICE CONNECTION
4,7 Kohm 1/4W
(4,7 Kohm=yellow-
purple-red-gold)
1A Diode
type 1N4004
or similar
+
sounder
-
sounder
Power supplied
sounder (24V)
-
Sounder balanced
line (term. 25)
+ Sounder balanced
line
A
K
Polarization diode
1N4004 (or similar)