RDU Mk2 Installation & Programming Manual
Document No: LT0499
Programming Part 2
Page 7-24
8 April 2015
Issue 1.02
New Zealand Operation
For New Zealand systems, trial evacuation and silence alarms map implicitly to the Warning
System. New Zealand operation is the same as Australian operation described above with
the following additions.
WSS
is true if Silence Alarms is asserted at the FIP (and the RDU is programmed to follow
FIP silence alarms) or if Silence Alarms is asserted locally and local control is enabled for
Silence Alarms.
WSO
is true if FIP trial evacuation is asserted (and the RDU is programmed to follow) or if
local Trial Evacuation is asserted and local control is enabled for Silence Alarms.
7.5.2
OPERATION OF THE EXTERNAL BELL FOR AS4428.1 OPERATING MODE
For an RDU with a MAF board, External Bell maps to the ancillary 2 relay implicitly but can
be overridden by a logic equation if necessary. If there is no logic equation for the ancillary 2
relay then the relay is off if the ancillary 2 relay is isolated. Otherwise, if EBO is true and
EBS is false, the ancillary 2 relay is activated, otherwise the ancillary 2 relay is off.
EBS
is true if
The external bell is locally isolated, or
The FIP external bell is isolated and the RDU is programmed to follow FIP Ext Bell
isolate state.
EBO
is false if EBS is true or if there is no MAF board installed, otherwise, EBO is true for
any of the following.
Any zone mapped to the ext bell is in alarm, or
When the FIP ext bell is activated and the RDU is programmed to follow the FIP Ext Bell,
or
An external bell test is done at the RDU.
EBT
is true when an external bell test is initiated locally.
7.5.3
ANCILLARY 2 RELAY OPERATION FOR AS1603.4 OPERATING MODE
If the ancillary 2 relay is not controlled by output logic, then the relay is off if it is isolated;
otherwise the relay is activated if any zone mapped to the ancillary 2 relay is in alarm or if an
ancillary 2 relay test is done.
NOTE : When the operating mode is set to AS1603.4, zone configuration (section 7.2.2)
allows zones to be mapped to anc1, anc2 and bells. When the operating mode is AS4428.1,
zones can be mapped to anc1, External Bell and Warning System.