ZyXEL Communications U-336SA - Manual (Page 58)

44 LCD Panel Operation
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
exchanges data synchronously in data
state.
SYNC AT&M3 The modem accepts synchronous
command (V.25bis) and exchanges
data synchronously with a remote
modem.
Dialing from Synchronous Mode
1. Dial from the terminal using asynchronous commands : Set
&M1 and use asynchronous AT commands to dial the number.