32 Synchronous Mode Operation
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.
Once the modem is connected, the modem will enter
synchronous operation.
2.
Dial through the computer using V.25bis commands: Some
communication software packages on synchronous computers
can dial using V.25bis synchronous commands. In this case, set
&M3 and *I1 and the modem will accept V.25bis commands
and make a synchronous connection.
3.
Using DTR to dial a stored number in synchronous mode:
Store the telephone number by the asynchronous command
&Zn=. Use the DEFAULT DIAL parameter menu or *Dn
command to select the default dial pointer. Set &D1 and either
&M1 or &M3, then raise DTR from your terminal or
communication software. The modem will dial the default
stored number. After the modem is connected, the modem will
enter synchronous operation.
Содержание U-336R
Страница 1: ...U 336R RE User s Guide Version 1 0 Mar 1997 ZyXEL ACCESSING INTERNET INTRANET...
Страница 18: ...6 Introduction...
Страница 25: ...Installation 13 10 for troubleshooting suggestions...
Страница 26: ...14 Installation...
Страница 46: ...34 Synchronous Mode Operation...
Страница 64: ...52 Special Functions...
Страница 127: ...Status Registers Result Codes 115...
Страница 148: ...136 Terminal Pinouts...