ControlNet Fiber-optic Ring Repeater Modules
29
Rockwell Automation Publication 1786-IN003D-EN-P - April 2011
Table 2 -1786-RPA/B Repeater Adapter Module Status Indicators
If repeater adapter
indicator is
This means
You should
Alternating red/green
The repeater adapter is
being powered or reset.
Do nothing. The repeater adapter
is operating properly.
Solid red
A jabber condition has
occurred. Another node or
repeater on the network is
transmitting constantly.
Check the network and
components for proper operation.
Off
The repeater adapter is not
powered or has failed.
Check the power input to the
repeater adapter for correct
voltage and polarity.
Solid green
Error-free data is being
recovered at the coax port
of the repeater adapter.
Do nothing. The repeater adapter
is operating properly.
Flashing green/off
Data with errors is
occasionally being
recovered at the coax port
of the repeater adapter.
This situation will normally
correct itself. If the situation
persists check the following:
•
All BNC connector pins are
seated properly.
•
All taps are Rockwell
Automation taps.
•
All terminators are 75
Ω
and
are installed at both ends.
•
The coax cable has not
been grounded.
Flashing red/off
Either no data is being
received at the coax port of
the repeater adapter, or
data with a large number of
errors is being received at
the coax port of the
repeater adapter.
Check for the following:
•
Broken cables.
•
Broken taps.
•
Missing segment terminators.
Spare Allen-Bradley Parts