Kingfisher Plus+ Hardware Manual
Linking Backplanes
2.5.1 Creating Racks
A single RTU can consist of up to 64 modules by using a six-bit number adopted in the
Kingfisher Plus+ systems:
In order to organise connection of up to 64 modules into one RTU, backplanes should be
linked together into ‘racks’. Each rack can have a maximum of 16 slots. A single RTU can
support up to 4 racks thus providing a total of 64 module slots.
The figure below shows one full rack (16 slots) consisting of a
12-PLUS
.
The BA-x-PLUS backplanes have an IN and an OUT connectors (J13 and J15 described
earlier in the “
” section) linking them to the RTU data bus. The BP-x-
PLUS backplanes have only one (OUT) connector linking them to the RTU data bus (J13).
The reason for this is that the BP-x-PLUS backplane must always be the first in an RTU.
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
Page 28