The output ports on the expanders are all single pole relay type outputs (NO, COM, NC); therefore,
output devices may need external power sources to activate if they are wired to expander outputs.
The activation of a particular output type depends on the zone type (see Zone types on page278) or
alert condition that triggered the activation. If multiple areas are defined on the system then the
outputs on the SPC are grouped into system outputs and area outputs; the system outputs are
activated to indicate a system wide event (for example, mains fault) whereas the area outputs
indicate events detected in one or more of the defined areas on the system. Each area has its own
set of area outputs; if the area is a common area for other areas, then its outputs will indicate the
state of all the areas it is common for, including its own state. For example, if Area 1 is common for
Area 2 and 3, and Area 2 Ext. Bell is active, then the Area 1 Ext Bell output is also active.
Some output types can only indicate system wide events (no specific area events). See the table
below for further information.
Output Type Description
External Bell This output type is used to activate the system external bell and is active when any Area
External Bell is active. By default, this output is assigned to the first output on the controller
board (EXT+, EXT-).
Note: An external bell output is automatically activated whenever a zone programmed as an
Alarm zone triggers an alarm in Fullset or Partset modes.
External Bell
Strobe
This output type is used to activate the strobe on the system external bell and is active when
any area strobe is active. By default, this output is assigned to the strobe relay output (Output
3) on the Controller board (NO, COM, NC).
Note: An external bell strobe output is automatically activated whenever a zone programmed
as an alarm zone triggers an alarm in Fullset or Partset modes. The external bell strobe
activates on a ’Fail to Set’ condition if the strobe on the ’Fail to Set’ option is checked in
system options.
Internal Bell This output type is used to activate the internal bell and is active when any area Internal Bell
is active. By default, this output is assigned to the second output on the controller board
(INT+, INT-).
Note: An internal bell output is automatically activated whenever a zone programmed as an
Alarm zone type triggers an alarm in Fullset or Partset modes. The internal Bell activates on a
’Fail to Set’ condition if the Bell on the ’Fail to Set’ option is checked in system options.
Alarm This output turns on following alarm zone activation on the system or from any area defined
on the system.
Alarm
Confirmed
This output turns on when an alarm has been confirmed. An alarm is confirmed when 2
independent zones on the system (or within the same Area) activate within a set time period).
Panic* This output turns on following activation of panic alarm zone types from any area. A panic
alarm output is also generated if a user duress event is generated or if the panic option for the
keypad is enabled.
Hold-up This output turns on whenever a zone programmed as a Hold-up type zone triggers an alarm
from any area.
Fire This output turns on following a fire zone activation on the system (or from any area).
SPC42/52/53/63 – Installation & Configuration Manual Engineer programming via the browser
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08.12.2023
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