Kingfisher Plus+ Hardware Manual
2. BACKPLANES
Overview
The purpose of a backplane is to host all Kingfisher Plus+ modules that make an RTU and to
allow the processor module to communicate with all other modules within the same RTU.
The backplane also distributes power to each module. Some backplanes can be
linked
together to create an RTU containing up to 64 modules.
There are two families of Kingfisher Plus+ backplanes available:
• BA-x / BA-x-PLUS – passive backplanes that require a power supply module to be
installed in one of the slots to make the RTU working. These backplanes range is a
flexible solution for creating medium- to large-scale RTUs of any desired configuration.
• BP-x-PLUS – backplanes with an integrated 5 V power converter that require only one
external +12 V
DC
power supply to run the RTU. These backplanes have limited
expansion and configuration capabilities and mainly aimed for building small-scale low-
cost RTUs.
Seven versions of backplanes are available in total:
BA-4 / BA-4-PLUS 4-slot backplane for use with PC-1 processor module
BA-40 / BA-40-PLUS 4-slot backplane
BA-6 / BA-6-PLUS 6-slot backplane
BA-12 / BA-12-PLUS 12-slot backplane
BP-2-PLUS 2-slot backplane with integrated 5 V power supply
BP-4-PLUS 4-slot backplane with integrated 5 V power supply
BP-6-PLUS 6-slot backplane with integrated 5 V power supply
Note: Where the number of slots is not important, the backplanes will be referred to as
‘BA-x-PLUS’ (for all passive backplanes) and ‘BP-x-PLUS’ (for all backplanes with a built-in
power supply) further in this document. The part numbers with the ‘-PLUS’ suffix use the
green pluggable terminal blocks for the inter-rack data connectors, while the old (will be
referred to as ‘BA-x’) backplanes use black crimp connectors (Harwin Datamate M80) for
that purpose.
All Kingfisher Plus+ backplanes are designed to be surface mounted. Mounting brackets
(2 pieces) are supplied for user fitting. The backplanes can also be mounted in a 19" rack
(see “Accessories
” chapter for details).
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
Page 16
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