I do exactly what you describe (though the two serial ports are on the
same machine) with these strings for the secondary DTE:

ats128.7=1 OK
at&c1&d2&h3 OK
atb40 OK

I also set the serial speed of the secondary port to 230Kbaud using AT*A0
(this works, even though it is not mentioned in the manual). You have to
set the speed of the second DTE from the primary DTE, you need to use the
setting that the computer serial port expects of course.

On Tue, 4 Aug 1998, Oommen Thomas wrote:

> BUT when connected to the 2nd DTE of the TA128U, there is no response at
> all. No AT commands work.

Some serial setting must be incorrect or your modem is bad.  It is
probably a hardware problem.

> The AT string given for the 1st DTE is 
at
s0=1    -- answer on one ring
q0      -- ta returns result codes
v1      -- verbose result codes
&k00    -- disable v42.bis 
&j3     -- two way bundled connection allowed (MLPP)
b40     -- PPP async to sync conversion 
&h3     -- hardware flow control
x7      -- don't use this, use x5 see pg 17-13 for why
&e0     -- this should allow 64K call, maybe your ISP doesn't allow?
s125.0=1        -- two DTE's and one POTS port
 
> and for the 2nd DTE is 
at
v1
b40
&h3
x7
s128.0=1        -- unecessary if you don't send invalid commands
                -- to DTE number two (9 pin DTE).

THis should work, get minicom to talk to the secondary port and all should
be fine.

Ed Welbon - [EMAIL PROTECTED]  - Be thankful that Microsoft does
http://www.kernel.org       - not manufacture pharmaceuticals. 
http://www.gnu.org          - Magna est veritas et praevalebit



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