
D Series Hardware Manual
July 7, 2017
Version 2.0.0.0
15
Connecting up a D series panel
D series control panels require a separate wiring infrastructure that includes RS-485 data and
low voltage power in a bus or
daisy chain
topology. For best performance and reliability, only
Category 5 (CAT5) cable or better should be used for D Series networks. Cable runs exceeding
2000 feet are possible using CAT5 cable, proper conduit and terminations.
In some cases, especially when extremely long cable runs are present, it may be necessary to
terminate the end of the data line (EOL). In adverse conditions, both ends of the data line may
require EOL termination. If this is the case, you can terminate the far end of the network by
enabling an additional EOL termination at the last panel in the chain using the DIP switch (see
End of line (EOL) terminations
(on page 24)).
The diagram below shows a typical set up using a NION and two D series panels. Power is
supplied via the NION RS-485/422 port. A maximum of 31 D series units can be daisy chained
to the NION in this type of configuration.
Summary of Contents for D Series
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