Product guide

page
18
point has only one response
mode. This is factory preset
to 16.
A single alarm LED is
provided on the call point.
This LED is controlled,
independently of the call
point, by the CIE and may
be set to flash each time the
call point is polled.
Call points can be remotely
tested from the control and
indicating equipment by
transmission of a single bit
in the communications
protocol. Call points
respond by providing an
analogue value of 64 which
corresponds to the alarm
value. The CIE should
recognise this response as a
test signal and should not
raise a general alarm.
DISCOVERY MANUAL CALL POINT
Discovery Manual Call Point (MCP) ▲ For Part Numbers see Table 5
The Discovery Manual Call Point is available in two versions:
Part no. 58000
-
910
For surface mounting, incorporating the call point
assembly and a back-box.
Part no. 58000-920
For flush mounting, incorporating the call point assembly
and a terminal tray.
For flush mounting an outlet (pattress) box with a
minimum depth of 25mm is also needed.
OPERATING
PRINCIPLES
The Discovery call point is
based on the KAC World
Series.
The address of each call
point is set at the
commissioning stage by
means of a seven-segment
DIL switch.
If an MCP is activated it
interrupts the normal
protocol to give a fast
response. For full details of
the patented interrupt
feature, see publication
PP2027.
The Discovery call point has
4 bytes of non-volatile
memory available for the
user in the same way as
Discovery detectors. The
call point has the
conventional alarm facility.
The Discovery manual call
Table 5 Manual Call Point Part Numbers
NON-STANDARD
MANUAL CALL
POINTS
Manual call points approved
for use in countries applying
DIN standards are available,
as are XP95 manual call
points for outdoor use or for
special purposes, such as
initiating an ‘Evacuate’
alarm. It should be
remembered, however, that
XP95 manual call points
have no user bytes available
and do not have the
Discovery conventional
alarm facility.