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Installing the 8380 RPC
The following section explains the procedure used to physically connect multiple 8380 RPC
units using the RS-485 Control Port. In order to properly setup the 8380 RPC the following
steps must be completed in this order. Do not skip any steps.
Unit Installation
When installing a Master unit
with several Slave units, the
Master unit should always be
placed in the middle of the
"stack". Then, Slave units 01
through 08 should be placed
above the Master unit and
Slave Units 09 through 16
should be placed below the
Master unit.
This method of installation is
used to reduce the required
cable length between Master
and Slave units while keeping
the connections from having to
cross each other.
All units should use the same
length cable. The cable length
is determined by the longest
length needed as measured
from the COM port of the Slave
unit furthest from the Master
unit to the corresponding input
of the Master unit. Once the
cable length is determined,
ALL cables connecting the
Master unit to the Slave units
should be the same length.
May 2018
8380 RPC User's Guide
Document Num., Rev. 3
Page 15
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