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Technical Reference • • Appendix B
39
a In the UNIX system, C360 will check line status (CTS/DSR)
before it sends data out if RTS/CTS flow control feature is set to
ON. In this case, if user is using 3-pin (TxD, RxD, GND) cable,
please run "moxaadm" and use configuration program to set the
RTS/CTS flow control feature to OFF (strongly recommended).
Or loopback (or short) the RTS with CTS and DTR with DSR on
MOXA port site as follows.
RTS DSR
CTS DTR
DCD
If RTS/CTS flow control feature is set to OFF, then leaving the
pins mentioned above open is fine.
b Perhaps the application controlling MOXA board is not correctly
written according to the corresponding API of the operating system.
To verify, please run existed and known good application or Moxa-
provided utility.
For example, under UNIX, "stty", "cat", or "getty" is existed
program for testing tty port.
4 During operation, the host system with C360 is powered off but
the Async Concentrator(s) is(are) still on.
Solution:
Simply restart the host system, and normal C360 startup procedure
will be executed.
5 Under UNIX, MOXA port responds too slowly or abnormal key
operation.