Moog Components Group Single Port GBE Media Converter Manual August 12, 2009
Page 7 of 7
If both the “PWR” LED and the “1.2/3.3 VDC” LED is out:
Check for continuity of PTC fuse F1 with an ohmmeter.
Replace PTC fuse if open.
If only the “1.2/3.3 VDC” LED is out:
Verify DC voltage is present at the source
Replace the board with a spare, nothing repairable.
1.3.6
Optical Section Testing
1.3.7
Ethernet Testing
If the Ethernet link is out or has errors:
As this board will only work with Gigabit Ethernet traffic, verify that the devices at both
ends of the link are indeed Gigabit Ethernet devices.
Verify that the Ethernet devices at both ends of the link are powered up.
Verify that both of the dual LEDS at LED3 are lit to confirm Ethernet activity at the RJ-
45 connector.
Attempt to PING from one device to the other.
If the channel is still not operating correctly, first check the field wiring. If the wiring
appears correct, then first replace the subsea Gigabit Ethernet board with a spare and
check the link again. If the problem is still there, replace the surface Gigabit Ethernet
board, with a spare and check the link again.
