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Selection of output
contact mode for
output relay on
SWIM 2A1
24
Upon delivery all output contacts of the annun-
ciator unit are selected for a NO mode of
operation except for the internal self supervision
output relay that is normally energized and its
output contact is open, i.e. NC. If needed the
mode of operation of the output contacts can be
changed to the NC for the selfsupervision out-
put relay, the audible device output relay and
the two fixed group alarm relay outputs.
These output relays are physically located on the
PCB of the Input/Output module SWIM 2A1.
Access to the module is obtained so that first the
lid is opened and the front panel dismounted
and then the microprocessor module SWPM
3A1 is withdrawn. The 16 relays on the relay
module SWOM 16A1 are fixed as NO and
cannot be changed.
E
E
E
Fig. 25. Output relays of the I/O module SWIM 2A1.
E
E
E
E
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E
0911
0911
WARNING!
Although the auxiliary supply voltage of the
annunciator unit has been switched off, external
voltages may be present in the auxiliary reflash
contact circuits.
When the Input/Output module has been with-
drawn from the case, the PCBs can be separated
from each other so that the retaining tongues of
the plastic spacing plugs are depressed and the
upper PCB is lifted. The jumper wires on the
PCB corresponds to the output relays as follows:
W1
reflash output relay 1
W2
reflash output relay 2
W3
self-supervision system output relay
W4
audible device output relay
The mode of operation selection for the output
relays is carried out by moving the concerned
jumpers on the PCB in the way illustrated by
the legend print on the PCB.
E
E
E
0911
0911
Audible device output
Self-supervision output
Group reflash output 2
Group reflash output 1
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