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BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN
EN1B-0198GE51 R0801
11
2.2 Rear
Side
Differences between the various BNA types are
explicitly noted in the corresponding element
description.
8
Ch2
3-pin connector for field bus channel
2
connection electrically isolated meets the
EMC-and FCC-requirements.
Field Bus wiring is described in chapter
5.2
Field Bus Connection (Ch1 / Ch2)
on
Page 20
.
Note:
The Ch2 field bus connector is
available on two-channel devices only. It is
not available on a BNA 1C device.
9
Ch1/Ch2 Bus Termination Switches
These switches are used to select between
different field bus terminations. For a detailed
description of the different Bus Termination
Switch positions, please refer to chapter
5.3 Bus Termination Switch
on
Page 20
.
Note:
The Bus Termination Switch option
is available on BNA
1C and BNA
2CS
devices only.
The Bus Termination Switch near the Ch2
field bus connector is available on two-
channel devices only. It is not available on a
BNA 1C device.
Summary of Contents for BNA-1C
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