Westermo RM-80 - Manual (Page 42)

42 6193-4201
Chapter Four DIAGNOSTICS
4.1 Diagnostics Chart
LED Indicator Condition Meaning
OK GREEN Normal Operation
OK RED Supply voltage too low.
Radio RX GREEN flash Radio receiving data
Radio RX RED flash Weak radio signal
Radio TX Flash Radio Transmitting
Radio LINK On On when a radio communications link is estab-
lished
Radio LINK Off Communications failure or radio link not estab-
lished
Radio LINK GREEN flash
RED flash Serial Port Receiving CTS low
LAN ON Link Established on Ethernet port
LAN Flash Activity on Ethernet port.
Serial GREEN flash RS-232 Serial Port Activity
Serial RED flash RS-485 Serial Port Activity
DIO On Digital Output ON or Input is grounded.
DIO Off Digital Output OFF and Input is open circuit.
The green Active LED on the front panel indicates correct operation of the unit. This
LED turns red on failure as described above. When the Active LED turns red shutdown
state is indicated. On processor failure, or on failure during startup diagnostics, the unit
shuts down, and remains in shutdown until the fault is rectified.