Specifications

EPC-8 Hardware Reference

J-4

Symptoms Possible cause(s) Solution

System will not talk

across VMEbus.

The VMEbus backplane

may not be jumpered

correctly.

More than 1 master may

be set to provide Slot-1

functions.

There may be no Slot-1

controller providing bus

arbitration.

EPC-8 or subplane may

have bent pins.

VMEbus interface failure.

See the section Installing the

VMEbus Backplane Jumpers in

Chapter 2.

Make sure that only 1 system is

configured as the Slot-1 controller

and that it is the left-most system

in the chassis.

Determine if the system is in the

left-most position and that the

Slot-1 controller jumper is set.

Remove the EPC-8 and the

subplane and verify that no pins

are bent. Then reinsert the

subplane and the EPC-8.

Call RadiSys Technical Support.

Table J-1. Troubleshooting Error Messages.

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