Honeywell BCU 460 Technical Information page 130

BCM 400
BCU..P6: for connection to the BCU mounting plate,
use only a 9-pin Variosub PROFIBUS plug connector
with a deactivatable bus terminator,
Order No. 74960431
Data cables A and B must not be reversed.
BCU..B1/1
2A 2B 1A 1B
PROFIBUS DP
Connect the shield on both sides and over a wide area
with shield clips in the plug.
Switch on the terminal resistors on the first and last
subscriber in the segment.
The power supply for the bus terminator is provided by
the BCU. The bus terminator can be activated in the
PROFIBUS plug connector.
Ensure there is an equipotential bond between the de-
vices.
BCU 460, BCU 465 · Edition 11.19
ON
ON
OFF
OFF
BCM . .B2/B3
Use shielded RJ45 plugs.
Installation guidelines
For PROFIBUS, PROFINET, see www.profibus.com,
for Ethernet installation guidelines, see www.odva.org.
130