Rts Options - ZyXEL Communications U-336R/RE User Manual

carrier and sends the data to the receiving DTE along with the
clock. There are three types of transmission synchronous clock
sources to choose from:
1. The internal clock is the one that suits most applications and is
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
EXTERNAL
SLAVE

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
CTS TRACKS
RTS
the default; in this case, the clock signal is generated by the
sending modem.
AT&X0
AT&X1
AT&X2
AT&R1
AT&R0
The modem provides the clock and
sends it to the DTE. Adaptive rate
can be used. (Default)
The DTE provides the clock and
sends it to the modem. Must use
auto-retrain, cannot use adaptive rate.
Recovered receiver clock serves as
transmission clock.
RTS is ignored; always assumed
to be ON. (Default)
Delay before CTS responds to
RTS's change. The delay is set in
the S26 register.
Synchronous Mode Operation 31