ZyXEL Communications U-336R/RE manual Command State Options, Dialing from Synchronous Mode

Models: U-336R/RE

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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

AT&M1

The modem accepts asynchronous

DATA

 

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.

32 Synchronous Mode Operation

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ZyXEL Communications U-336R/RE manual Command State Options, Dialing from Synchronous Mode, Synchronous Mode Operation