Document No: LT0255
F3200/NDU AS4428.1 Installation Manual
Installation & Wiring
Issue 1.22
5 July 2016
Page 5-7
need a link fitted to it, its presence indicates to the NDU that it is the last board in the chain.
When programming the number of Display Bd, the Display Extender is not counted, but is
individually programmed as fitted/not fitted. Refer also to Section 5.12.
The Unprotected Termination board, PA0483, connects to the NZ Display Extender via FRC.
The NZ specific wiring connects to this Termination board.
Note the 2 LED Display boards (FP1002) do not have a link to be installed on the last board,
nor do they have a mimic output connector to drive mimic displays or relays. One LM0339,
as above, and one 270mm FRC extender for adjacent boards is included. Others need to be
purchased separately. LM0339 is typically too short for F3200, and an LM0092 (1.2m) is
more suitable.
Extended LED Displays
F3200 has an upper limit of 64 zones so requires only 4 LED display boards, if used. An
NDU may be required to display more than 64 zones.
In larger systems, with more than approximately 12 LED display boards (192 zones), there is
an increased possibility of spurious LED operation. The problem has been described as
“leakage” from an indicator that should be on to other indicators near to it, which may flicker
on and off instead. This is most noticeable on a large system with a number of isolated
zones.
This problem can be fixed by fitting a Display Clock Buffer between the F3200 and the first
LED display board.
Mounting and Connection
The Display Clock Buffer can be mounted adjacent to the Controller board or adjacent to the
first zone display board, whichever is most convenient.
The Display Clock Buffer circuit board has the same mounting footprint as an IOR
Unprotected Termination Board. If there is a mounting footprint for this in a convenient
place, through-chassis PBR06 standoffs (supplied) should be used. If there is no other
option, the adhesive base standoffs (also supplied) can be used instead.
The included LM0339 is used to connect to Controllers with a 34-way display connector
(newer F3200/RDU/NDU/NLDU, or LED-RZDU), as shown in Figure 5.1.4 below.
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Connection to F3200 Controller with 34-way display connector
