Document No: LT0117
F4000 LCD Operator's Manual
Operating Instructions - System Functions
Issue 2.38
19 April 2002
Page 6-5
6.3
BELL ISOLATE or DE-ISOLATE
6.3.1 FUNCTIONS
To change the isolation state of the alarm bells, either from de-isolated to isolated, during
testing, or vice-versa on completion of tests.
6.3.2 OPERATING SEQUENCE – LOCAL PANEL
To Isolate or De-Isolate the bells at any time, press:
-
If the amber "BELLS ISOLATED" LED indicator was OFF, it
will now be turned ON, to indicate the alarm bells are isolated.
-
If the amber "BELLS ISOLATED" LED indicator was ON, it will
now be turned OFF, to indicate the alarm bells are de-isolated.
-
When the Bells are isolated, New Zealand mode FIPs will turn
off the "NORMAL" indicator, and will slow pulse their internal
sounder if the door is closed.
-
Note that the bells can also be isolated via the SYSTEM
ISOLATE BELLS or ISOLATE SYSTEM BELLS command
sequences.
NOTE:
On New Zealand mode FIPs it is possible to silence the bells via operation of
the external Silence Alarms keyswitch on the FIP, an RDU, or another
network F4000. This will cause the "BELLS ISOLATED" LED to flash (2Hz or
slow), and a fault (defect) to be signalled to the brigade.
A bell isolate or de-isolate command may also be initiated by an RDU, if this
function has been enabled during programming at the RDU.
For network F4000s, isolating the local bells may result in the bells on other
FIPs on the system being silenced, depending on how the F4000s have been
configured.
6.3.3 OPERATING
SEQUENCE – REMOTE PANEL
To Isolate/De-isolate the bells at remote panel nnn, press:
The status of the bells isolation at the remote panel will be given and pressing the ACK key
will invert this (e.g. change Isolated to De-isolated).
