Mitsubishi Electric AJ65BTS-RPH User Manual page 47

(5) The RD LINK 1 to 8 LEDs corresponding to the data linking branch lines
are not lit.
This section describes troubleshooting when the RD LINK 1 to 8 LEDs
corresponding to the data linking branch lines are not lit.
RD LINK 1 to 8 LEDs are not lit
Is the transmission
rate setting identical between
AJ65BTS-RPH and the remote station?
(Refer to Section 4.3)
YES
Is the setting of destination
remote station set on the master
station correct?
YES
Is the communication
cable of the branch line side connected
correctly? (Refer to Section 4.4)
YES
Is there any error on
the remote station?
YES
Is there any noise source
around the AJ65BTS-RPH or
communication cable?
YES
The hardware may have a defect.
Contact your local Mitsubishi representative,
explaining a detailed description of the problem.
NO
Correct the transmission rate setting
of the remote station to the same
as AJ65BTS-RPH. (Refer to Section 4.3)
NO
Correct the setting of the destination
remote station set on the master station.
NO
Connect the communication cable of the branch
line side correctly. (Refer to Section 4.4)
NO
Restore the faulty area referring to the
manual of the remote station.
NO
Move the noise source away from the
AJ65BTS-RPH and communication
cable to a place not influenced by noise.
Completion
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