SMSC MOST50, Руководство пользователя

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MOST50 E-O Converter
E-O Converter User’s Manual Copyright © 2009 SMSC. DB0820UM1A
Page 23
Appendix B: Troubleshooting
Problem Solution
E-O Converter does not power on
- Plug in the DC power supply and check if the E-O Converter powers up.
- If it now works, the
Power
LED (green) will turn on. Also, the
Charge
LED
(blue) will turn on or flash.
- If the
Charge
LED does not turn on or flash, the battery is defective.
- If neither of these works, the power supply might not be operating correctly.
Check that the green LED is on for the 12 V power supply.
Network does not lock
- Check the
Optical Error
and
ePHY Error
LEDs on the E-O Converters.
- If the
Optical Error
LED is on, make sure that the glass optical fiber cable is
hooked up correctly and the connections are securely in place.
- If the
ePHY Error
LED is on, make sure that the ePHY cable is hooked up
correctly and the connections are securely in place.
- If neither of these works, make sure that the network has a timing-master.
Charge
LED is flashing
- The battery is severely depleted of charge and a pre-charge is needed. The
charger will begin a fast-charge cycle when a minimum voltage is reached.
- The battery has recently been charged and is outside of the temperature
range to enter another fast-charge cycle. The unit is ready to be used.
Power
LED is flashing green and yellow The battery is malfunctioning or has become disconnected.
ePHY Error
Versatile Link
transmitter is
not working
- The Versatile Link transmitter should be lit at the same time as the
ePHY Error
LED.
- If they both turn on, make sure that the plastic fiber optical cable is
connected correctly and that the Versatile Link receiver meets the
specifications listed in Appendix A.
- If the Versatile Link transmitter does not turn on while the
ePHY Error
LED is
on, then the transmitter is malfunctioning.
Battery charge does not last more than
eight hours, or the low battery indicator
turns on prematurely
- The battery is faulty and should be replaced.
Something is rattling inside of the
enclosure
- The LED lightpipe is loose by design. Check to see that the rattling is not
caused by the LED lightpipe by holding a finger on the lightpipe and gently
shaking the enclosure.
- If it is not the lightpipe, then something else is loose inside the enclosure
and could cause a short to the battery. Do not operate the E-O Converter.
Table 5-1: Troubleshooting