ENVOY™ TRANSCEIVER REFERENCE MANUAL 423
B
LED indications
The front panel of the RFU has a LED indicator that shows the current status of the
unit.
Table 39: LED indications
Colour Status Description
Off – RFU is switched off
Green Solid RFU is ready and operational
Slow flashing RFU is ready, but has no control points connected
Slow flashing with flicker
of yellow
RFU needs to be switched off then on again to activate
changes
Slow flashing with red RFU is experiencing a non-fatal error
Yellow Solid RFU is initialising
Slow flashing RFU is off line due to internal reconfiguration
Slow flashing with flicker
of red
RFU is in bootloader mode
Alternate flashing with red RFU is upgrading firmware
Red Solid RFU requires attention or servicing
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