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997-412-000-3, Issue 3
June 2005
IDR-M Mimic Installation & Commissioning Manual
8
2.4 Mimic Display Components
The IDR-M mimic consists of the following
components:
a. IDR-M Control and Termination kit. This
comprises a Control board and a
Termination board co-located on one metal
chassis. The Control board contains the
processor and memory, and the
Termination board allows connection of
power, RS485 and other external signals.
The Control board communicates with up
to eight Mimic Driver boards.
b. IDR-MD Mimic Driver kit. This comprises a
Mimic Driver board and two Mimic Termination
boards, each mounted on a discrete metal
chassis. Up to eight Mimic Driver boards can
be driven by one Control board. Connection
between each 'daisy-chained' Mimic Driver
board, and between the Control board and the
first Mimic Driver, is via a Serial to Parallel
Interface (SPI) bus (refer to drawing on next
page). A 10-way ribbon cable is supplied for
the interconnection of:
i) The first Mimic Driver board and the
Control board, or
ii) The Mimic Driver board and the previous
'daisy-chained' Mimic Driver board.
Two 40-way ribbon cables are supplied for
interconnection between the Mimic Driver
board and two Mimic Termination boards.
Each Mimic Driver board contains terminals
to which the LEDs or relays should be
wired.
Note: The LEDs/relays, enclosure and fascia
are not supplied.
Each IDR-MD Mimic Driver kit also contains
two M4 Nyloc locking nuts for securing the
chassis of interlocking Mimic Driver
assemblies, if required - refer to the
instruction sheet provided with the kit.
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