Omnitron Systems Technology 8000-0 user manual Troubleshooting Guide, Possible Causes

6.0TROUBLESHOOTING GUIDE

6.1OVERVIEW

The NMM module has several LED indicators available to assist in the determination of problems. Refer to Section 3.5, Verify Operation, for LED definitions.

6.1.1Power Issues

Problem:

The Power LED does not illuminate after installation is complete or no LED indicators are ON

Possible Causes:

A.Confirm that the chassis is connected to an AC or DC power source. If the Power LED is still not illuminated, remove the module and verify the operation of other modules in the chassis. If power is present and the module will not turn ON, replace the module.

B.The NMM requires ~ 1.0 watts (3.3VDC @ .32amps) for normal operation. The AC Power Supply in a 19-Module Chassis can supply ~ 60 watts (3.3VDC @ 18amp). A fully loaded chassis of certain modules will require an additional power supply for standard operation. This condition will cause the power LED not to illuminate.

6.1.3UTP Issues

Problem:

The UTP link LED does not illuminate after installation is complete.

Possible Causes:

A.Confirm that the UTP cable is connected properly to the iConverter NMM and the attached UTP device. Once a connection has been established between the NMM and its link partner (switch or workstation), the UTP LED should illuminate. If the LED does not illuminate, check the on-board slide switch for proper configuration (switch or workstation). If the LED still does not illuminate, check the configuration of the backplane enable switch (front or back). Make sure the switch is in the “front” position when connecting the UTP cable to the front of the NMM.

B.Verify the attached device is 10BASE-T.

C.Verify the distance between the iConverter and the link partner is within 100 meters.

D.Confirm that the UTP cable pin-out is correct (EIA/TIA-568-A). The module has auto-crossover capability, so it will accept either a straight-through or crossover cable.

NOTE: If corrective actions do not resolve your situation, please contact Omnitron Systems Technical Support.

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