1-5
November 2002
06-235975-001
Kidde Gemini II System
(f) A local Abort Input.
(g) A local Supervisory Input.
(h) A local Trouble event.
(i) No activation.
1-4.4.4
INDICATING CIRCUITS
Indicating Circuits 1 and 2 activate external audible and
visual indicating appliances. Both circuits operate inde-
pendently and can be programmed to operate on one or
more of the following conditions listed in order of priority
(low to high):
1
ST
Alarm
Waterflow
Pre-Discharge
Manual Release
Discharge
The two circuits can be further configured to generate one
of the following tones to indicate the occurrence of the above
listed conditions:
Silent
Steady (Silenceable)
Steady (Non-Silenceable)
Pulse 60 (Silenceable)
Pulse 60 (Non-Silenceable)
Pulse 120 (Silenceable)
Pulse 120 (Non-Silenceable)
Temporal (Silenceable)
Temporal (Non-Silenceable)
In operation, the Indicating Circuits will change accordingly
as the Alarm and subsequent discharge status progresses.
Notes
:
1. A given Alarm condition cannot be programmed to be
Silent on both Indicating Circuits.
2. A Manual Release creates either a Pre-Discharge or
Discharge condition. If it creates a Pre-Discharge con-
dition, i.e., there is still a timeout period, the Manual
Release tone will override the Pre-Discharge Tone
whereas for a Discharge condition the Discharge Tone
will take precedence. The Manual Release Tone will
also take precedence if operated during the Pre-Dis-
charge condition created by the automatic detection
system.
3. While Waterflow inputs cannot be Silenceable, an In-
dicating Circuit may be set to be Silenceable for all other
Alarm states. Consequently, in a release where a
Waterflow is activated, for all subsequent states of the
release the Indicating Circuit will become Non-
Silenceable (even if any subsequent phases were pro-
grammed to be silent).
4. As required for all UL/Canadian applications, the Abort
Tone when set to ON may be independently assigned
to either or both Indicating Circuits.
1-4.5
Communications
The Main Control Panel controls communications with all
units in the system through an RS-485 network communi-
cation port.
1-4.6
Logs
The Main Control Panel keeps two logs: the Event Log and
a Configuration Log.
The Event Log in the Main Control Panel collects all event,
alarm and supervisory messages throughout the system.
When the Event Log reaches its maximum capacity of 270
events, a new message overwrites the oldest message.
The MCP uses its volatile memory to create a System Ac-
tive Event List. This list contains every active alarm, trouble
and supervisory event that is present on the system. These
include those events that have been created by the MCP
itself, those that have been created at an RHU and trans-
mitted to the MCP and those that have been created at an
RDU and transmitted to the MCP.
When any of these active events is silenced/acknowledged,
that fact is recorded in the System Active Event List. Events
are removed from the System Active Event List as the
events clear.
The MCP uses the contents of the System Active Event
List to control the information displayed by itself and the
RHUs and RDUs. In other words, new events are displayed
as they occur (new troubles and supervisory events are
not shown if there is an active alarm event).
After all new events have been shown, the priority event
will be shown. The priority event is decided in the following
ways:
IF: There are any devices (MCP or RHUs) in alarm, the
priority event is the first alarm event.
ELSE IF: There are any devices (MCP or RHUs) in
non-decisive alarm, the priority event is the alarm event
for the first device in alarm.
ELSE IF: There is any device (MCP or RHU) in walk
test, the priority event is the walk test condition.
ELSE IF: There are any devices (MCP or RHUs) with
supervisory events, the priority event is the first super-
visory event created.
ELSE IF: There are any devices (MCP or RHUs) with
trouble events, the priority event is the first trouble event
created.
The MCP uses its non-volatile memory to provide a Sys-
tem Event Log. This is a log of events occurring at the MCP
and all RHUs and RDUs. It records the time and date of
the following:
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