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Has anyone had a failure of RS232 communication where:
1. Handshake is XON/OFF, the other parameters do not matter.
2. Nothing connected to RS232 connector, or even jumpering pins 4 and 5 and the voltage is +10 on 4 and 5. On HAAS 6, 8 , and 20 are do not care. Also in XON/XOFF pin 5 (CTS) is a do not care.
3. Put cursor on a program.
4. Press SEND. This should send the file.
5. What happens is that HAAS displays the message WAITING. This should not occur in XON/XOFF, but it should in RTS/CTS if pin 5 was negative.
6. What this tells me is that the input chip that receives the CTS signal is not at fault because the WAITING message never occurs in normal XON/XOFF operation.
7. The problem occurs when the circuitry is warm and cooling in the processor board area removes the problem. Has anyone else experienced this failure, and what was the specific cause?
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