Specifications

Optimux-XLT1 Installation and Operation Manual Chapter 5 Troubleshooting & Diagnostics
Troubleshooting Instructions 5-3
5.2 Troubleshooting Instructions
In case a problem arises, check the displayed indications and using this section and
the Optimux-XLT1 Front Panel Controls table attempt to interpret and solve.
Identify the trouble symptoms and perform the actions listed under "Corrective
Measures" in the order given in Table 5-2, until the problem is solved.
Table 5-2. Troubleshooting Chart
Trouble Symptoms Probable Cause Corrective Measures
No power 1. Check that both ends of the power cable are
properly connected.
2. If the Optimux-XLT1 is powered from DC, check
the polarity of the power connections.
Blown fuse 1. Disconnect the power cable from both ends
2. Replace the fuse with another fuse of the same
rating.
Optimux-XLT1 is "dead".
Defective Optimux-XLT1 Replace Optimux-XLT1
Power connection Check the connection of the power cable.
Blown fuse. Replace the fuse with another fuse of the same rating.
One of the PWR LEDs is
red.
Defective power supply If the PWR LED is still RED, have the Optimux-XLT1
repaired as soon as possible.
Defective Optimux-XLT1 1. Set the clock source to INT.
2. Loop the link connection with a short fiber.
3. If the LED is still ON replace the link.
4. If the LED is still ON have the Optimux-XLT1
repaired.
The LINK SYNC LOSS
LED is ON
External problem Check the link connections. Use loopback connections
to isolate the faulty unit (see Loop Connections on
page 5-1).
External problem The remote equipment connected to the fiber optic link
of the Optimux-XLT1 sends an AIS sequence. Check
the remote equipment.
The LINK AIS LED is ON
Defective Optimux-XLT1 1. Set the clock source to INT.
2. Loop the link connection with a short fiber/coax.
3. If the LED is still ON have the Optimux-XLT1
repaired.
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