Manual

APPENDIXES
Technical Appendixes
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WM_DEV_OAT_UGD_049 - 001 APPENDIXES August 23, 2007
o CMUX start connection
: 30 seconds.
After this timeout, MUX is closed, and previous physical port is
reopened.
o DLC inactivity timeouts
: 5 minutes.
This timeout is armed only if no DLC are opened, to avoid to be blocked
into only DLC0 opening channel state. After this timeout, MUX is closed,
and previous physical port is reopened.
3.2.2 Results
AT+CMUX=<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2>[,<T3>]]]]]]
],
will respond OK when parameters are in the range, and number of parameters are
in correct syntax.
Note: The 230400 (<port_speed> = 6), 460800 (<port_speed> = 7) and 921600
(<port_speed> = 8) speeds are added in AT+CMUX=? and AT+CMUX? responses.
The 230400, 460800 and 921600 speeds are added in AT+IPR=? and AT+IPR?
responses.
AT+CMUX=<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2>[,<T3>]]]]]]
],
will respond ERROR when:
ERROR Responses Meaning
+CME ERROR: 3 9 Operation not allowed:
Example: Trying to start a MUX session
during autobauding.
9 Parameters or number of parameters are out
of range.
+CME ERROR: 543 CMUX connection is refused by remote, after a
restart of CMUX protocol by Wireless CPU
®
, due to
a 27.010 connection loss during virtual channels
establishment.
+CME ERROR: 544 CMUX connection Timeout (no answer from the
remote) ie no DLC0 opened response.
+CME ERROR: 545 A CMUX session has been started on a physical
UART, and user tries to start another CMUX
session on other physical UART.
The error,
+CME ERROR: 545 is raised on the
UART where
at+cmux command is trying to be
started again.