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ABB Automation
1MRS 750107-MUM
Serial LonTalk
Adapter
Technical Reference Manual
SLTA Option Card
8.
Maintenance and service
8.1.
Self diagnostics
8.1.1.
Fibre-optic receiver LED
The receiver LED flashes when a message is being received from the fibre-optic
channel.
If the LED is continuously lit, the channel is heavily loaded or there is a
malfunctioning device sending continuous light.
8.1.2.
RS232 LED
The RS232 LED flashes when a message is being received from the RS232
interface, i.e. from the host device.
8.1.3.
Service LED
If the service LED is off, the Neuron Chip is in the configured state.
If the service LED is flashing, the Neuron Chip is in the unconfigured state.
If the service LED is continuously on, then the network interface has detected a
hardware failure.
8.1.4.
Service and spare parts
If a fault occurs in the SLTA option card, the faulty option card should be replaced
with a new one. For ordering information see chapter 9.
