
RDU Mk2 Installation & Programming Manual
Document No: LT0499
Installation & Wiring
Page 8-18
8 April 2015
Issue 1.02
8.4
INSTALLATION : NZ DISPLAY EXTENDER BOARD &
BRIGADE DISPLAYS
8.4.1
GENERAL
The preferred method for remote brigade mimics in New Zealand is to use the LED-RZDU
–
refer LT0460. The following information describes how remote NZ mimics have been
arranged using the RDU.
For New Zealand operation a Display Extender Board (PA0499 or PA0762) can be used if a
brigade mimic is needed or access to/display of any of the common signals is required.
In general, a separate display panel must be provided if there needs to be zone alarm
indication to the attending Fire Brigade staff. The zone indicators inside the RDU cabinet or
RZDU do not meet the requirements of NZS4512, and viewing access to the cabinet by the
brigade members is generally not practical.
Any Ancillary Control Zone indicators on this external display must be coloured differently or
be segregated from the zone alarm and common indicators, and be clearly labelled.
There are several methods for providing a separate display panel. Two basic approaches
are detailed below.
8.4.2
MIMIC DISPLAY
A mimic display uses the mimic outputs from the
RDU’s internal 16 Zone LED Indicator
Boards to drive alarm LEDs in an external display. Each group of 16 zone alarms and the
common indicators are extended in a separate 26 way FRC to the external display.
The number of FRCs between the RDU and the external display limit the practical separation
distance. Since the cabling is not supervised in any way, the Fire Service or approving
authority may place restrictions on this distance. The cable must be well protected
mechanically by conduit, trunking or equivalent.
These parts are available for constructing displays of this type:
FP0475
FP,16 ZONE LED DISPLAY EXTENDER KIT (C/W LOOM)
FZ3031
16 ZONE LED DISPLAY EXTENDER KIT, RHS POSITION
LM0044
LOOM, DISPLAY EXTENDER FRC,2M,26 WAY
LM0045
LOOM, DISPLAY EXTENDER FRC,5M,26 WAY
(Longer and 3-way looms can be made to special order)
LM0092
LOOM, CONTROLLER TO FIRST DISPLAY, 1.2m
PA0483
PCB ASSY, IOR UNPROTECTED TERMINATION BOARD
PA0499
PCB ASSY, NZ DISPLAY EXTENDER BOARD
PA0769
PCB ASSY,16 O/P MIMIC TERMINATION BOARD,C/W RESISTORS
(As for PA0483 but 3k3 resister per output)
PA0753
PCB ASSY,PICTURE FRAME DISPLAY,16 LED MIMIC,24V
PA0760
PCB ASSY,NZ DISPLAY EXTENDER,PFD MIMIC
At the display panel there are two possibilities:
(i)
Geographic Plan Mimic - the FRCs from the RDU are connected to Termination
boards (PA0483). Individual LEDs with series resistors are mounted on the display
panel and wired to these Termination boards. Figure 8.4.1 shows this arrangement.