Kingfisher Plus+ Hardware Manual
2.5.3 Setting Bus Terminators
Each BA-x-PLUS backplane has data bus terminators (resistors) that can be Enabled or
Disabled by the first six switches of the DIP-switch installed on the backplane PCB (please
refer to the information printed on the backplane board surface for exact details on possible
switch configurations). A chain of backplanes requires the terminators to be switched ON
(Enabled) for the
first
and the
last
backplane in the chain. All intermediate backplanes must
have terminators switched OFF (Disabled). The BP-x-PLUS backplanes have their
terminating resistors always enabled as they are designed to be the first backplane in a rack.
IO-bus terminators control switches
CM-bus terminators control switches
2.5.4 Setting Rack Number
While the rack number value of the BP-x-PLUS backplanes is always fixed (and equal to #1),
the BA-x-PLUS backplanes allow that their rack number to be configured with the switches
#7 and #8 of the on-board DIP-switch (please refer to the information printed on the
backplane board surface for exact details on possible switch configurations).
Rack Number control switches
The following table outlines the DIP switch configuration required for the most recent
hardware revisions of the BA-backplanes (v2.x and v3.x). For previous hardware versions
please refer to the Superseded Products manual available on
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
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