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Appendix B • • Technical Reference
~38~
Hardware Causes and Solutions:
a Check if the Ethernet cable between the Async Concentrator and
the Control Board is working segment by segment and firmly
plugged and properly terminated.
b Run the board configuration program to check the board
configuration. Connect proper number of Async Concentrators as
configured in configuration program.
c If all the possible methods fail, the Async Concentrator might be
defective. It is recommended to check it under DOS with utility
"SETUP" to verify the hardware conditions one by one.
3 MOXA board found but can not transfer (transmitting/receiving)
data.
Hardware Causes and Solutions:
a Check if wrong cable wiring.
Refer to Appendix B.3 for precise pin assignment of the connector
type user is using and make sure the cable wiring is right.
b Cable or Async Concentrator is defective. Or only certain port of
the Async Concentrator is broken. Pleas check all the
components mentioned physically or using diagnostics utility
available.
c IRQ setting of the board does not match the setting in configuration
software and device driver. Please make sure they do match.
Software Causes and Solutions :