Connecting The Network Cables (Autrolon); External Autrolon Cables; Internal Autrolon Cable - Autronica AUTRO SAFE Self Verify BS-310 Installation Handbook

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2.6 Connecting the Network Cables (AUTROLON)

2.6.1 External AUTROLON Cables

Note that the polarity of the external AUTROLON cables has no
importance. Likewise, incoming and outgoing external AUTROLON
cables can be freely connected to either LON-A or LON-B (see
drawing on next page). For documentation purposes, however, we
recommend that output is connected to A and input is connected to B.
In high-current environments (power plants, electrical machinery etc.)
it is recommended that shielded cable is used. In this case, the
shielding of the cable stubs between each cabinet should only be
connected at one end to avoid ground loops. If high-frequency noise is
expected (>10MHz), then both ends should be connected. This may
be present close to radio transmitting equipment or similar.

2.6.2 Internal AUTROLON Cable

The internal AUTROLON cable is connected between the Connection
Module BSF-310B and the LON Interface Board EAU-310 (see
drawings below and on next page).
Installation Handbook, AutroSafe Interactive Fire Alarm System, Release 3, 116-P-ASAFE-FA/DE,
NOTE:
Make sure that the connector on each side is mated correct and
is connected to all pins on the 4-pin terminal, and that the wires
point downwards on the BSF-310B board, and inwards on the
EAU-310 board.
BSF-310 board
4-pin terminal
Connector
Wires pointing
downwards
Rev. J, 2011-12-06,
Autronica Fire and Security AS
Internal Cable Connections
EAU-310
Connector
board
4-pin Wires
terminal pointing
inwards