ZyXEL Communications U-336S, Руководство пользователя

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40 LCD Panel Operation
1. The internal clock is the one that suits most applications and is
the default; in this case, the clock signal is generated by the
sending modem.
2. The slave clock is used when in remote digital loopback mode.
3. The external clock is a signal generated by the sending DTE.
INTERNAL AT&X0 The modem provides the clock and
sends it to the DTE. Adaptive rate
can be used. (Default)
EXTERNAL AT&X1 The DTE provides the clock and
sends it to the modem. Must use
auto-retrain, cannot use adaptive rate.
SLAVE AT&X2 Recovered receiver clock serves as
transmission clock.
RTS Options
There are two RTS options. The choice depends on application and
host/terminal requirements. In asynchronous mode RTS is used as a
hardware flow control signal.
IGNORED AT&R1 RTS is ignored; always
assumed to be ON. (Default)
CTS TRACKS RTS AT&R0 Delay before CTS responds to
RTS's change. The delay is set
in the S26 register.
Command State Options
For synchronous data communication, there are two options you
can choose from to define how the modem will operate in the
command state.
SYNC DATA AT&M1 The modem accepts asynchronous
commands in command state, but