Honeywell Q7055A Installation Instructions Manual page 9

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EN1B-0198GE51 R1004B
BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN
Shows the actual LAN traffic using 4 LEDs.
Col
Collision indicator (Red). If this LED is
on, then two or more devices on the
network are transmitting at the same
time. This is not a fault, but a normal
occurrence on an Ethernet network.
However, when the Collision LED
remains on for all transmission attempts,
it may indicate an abnormal condition
such as an open end-of-line termination.
Rx
Receive indicator (Green) on means that
data is being received by the BNA over
the Ethernet.
Tx Transmit indicator (Green). If this LED
is lit up, the BNA device is sending data
to the Ethernet. When data is being
transmitted, the Rx indicator LED is lit
up simultaneously.
Ln Link indicator (Green) will always be lit
when the BNA is connected via the RJ45
connector to the Ethernet. If this LED is
dark, it will not be possible to send or
receive any data.
Ch1
Bus Channel 1 activity display. This display
contains two green LEDs, one showing BNA
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