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AT&X Transmit Clock
The &X command nominates the source of its transmit clock signal when operating in
synchronous mode.
The receive clock is always derived from the receive (remote) carrier signal.
Options
AT&X0 ■ Synchronous clocks generated by Modem.
The modem generates the transmit clock and applies it to pin 15 of the RS-
232 socket
AT&X1 Clocks generated by computer - external clocking.
The clock generated by the computer or terminal (received on pin 24 of the
RS-232 socket) is directly applied to pin 15. This is known as external
clocking.
AT&X2 Clocks generated by remote system - slave clocking.
The receive clock (derived from the incoming carrier signal) is applied to pin
15 of the RS-232 socket. This is known as slave clocking.
See Also
&M command Synchronous/Asynchronous Mode
Range
0-2