at commands 1

[shoughendo]

Hi you guy's

Can anyone qive me the AT command's for a modem on a SL1 system

thank you in advence

Shou.

 

[sidvic]

Assume you have a US Robotics. Follw this longgggg thread


1) The SDI port must be configured for Modem Attachment ( to connect to a DCE) set to 9600, wordlength 8, 1 stop bit, NO parity.

2) The tested Modem is a US Robotics Courier / Sportster WITH DIP Switches. Note newer models of Sportster do not have DIP switches and are not suitable.

3) The Modem should be connected to a terminal device via its V24 port to enable programming.

The modem will respond to AT<CR> with OK, if not then the command
ATE1 V1 Q0<CR> will get the correct response. (echo on, verbose mode, quiet mode disabled)

The command string to set the modem up is dependant on the switch settings.
Some of the switch settings will override the command string on power up so the switch settings must be set first

SW setting
1 on
2 off
3 off
4 on
5 off
6 on
7 off
8 ........ leave on for the present. I.E. not in dumb mode.

Now enter the command string

AT&A3&B0&C1&D0&H1&I0&K0&M4&N6&R1&S0&T5&Y1<CR>
the modem will answer OK

Now enter

ATB0E0F1L2M1Q1V1X3Y0<CR>
the modem will not respond, you have set it in quiet mode with no echo.

to store the settings in the Non Volatile RAM (NVRAM)

AT&W<CR>

This will ensure that the ‘power on’ settings are as above .
Now turn the Modem power off and back on again...

type
ATI4<CR>
to see the power up settings ( this will still print even in quiet mode with echo off.

it should look like

US Robotics Sportster 28800 Fax Settings...

B0 E0 F1 M1 Q1 V1 X3
SPEED=9600 PARITY=N WORDLEN=8
DIAL=HUNT OFF LINE

&A3 &B0 &C1 &D0 &H1 &I0 &K0 &M4
&N6 &R1 &S0 &T5 &Y1

S00=001 S01=000 S02=043 S03=013 S04=010 S05=008 S06=004
S07=060 S08=004 S09=006 S10=007 S11=070 S12=050 S13=000
S14=000 S15=000 S16=000 S17=000 S18=000 S19=000 S20=000
S21=010 S22=017 S23=019 S24=000 S25=005 S26=000 S27=001
S28=008 S29=020 S30=000 S31=000 S32=000 S33=000 S34=000
S35=000 S36=000 S37=000 S38=000 S39=012 S40=000 S41=000
S42=126 S43=200 S44=015 S45=000 S46=000 S47=000 S48=000
S49=000 S50=000 S51=000 S52=000 S53=000 S54=064 S55=000
S56=016 S57=000

LAST DIALLED #:


It is now time to set the modem into DUMB mode. this is the reason you need a modem with DIP switches.
DUMB mode means that the modem will ignore any AT commands on its V24 port ( I.E. from the Meridian).
DIP switch 8 need to be set OFF, then turn the modem power off to activate the change in switch settings.

When you turn the modem on you will not be able to get it to respond to any AT commands.

You can now connect the modem to the Meridian.

If you need to make any changes to the modem settings you will need to set DIP switch 8 to ON, turn the modem off and on again, then switch the Echo on ATE1<CR> and remove quiet mode ATQ0<CR>

 

[shoughendo]

Thank you verry mutch for your time SIDVIC