3.Verify fiber connectivity:
Using the LEDs on the back of the unit adjacent to the optic module, verify proper operation as shown in the table below. Both optical launch power and optical receive power, as well as transceiver status, can be verified from the LCD front panel.
LED operating status
Optic LED
| RED | Indicates faulty LASER or no module installed | |
Tx |
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OFF | LASER operating within specifications | ||
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| GREEN | Indicates sufficient power received and frame synchronization | |
Rx |
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OFF | Indicates insufficient optical power | ||
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