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  3. November 2000

Re: ECS Modem control

  • Subject: Re: ECS Modem control
  • From: "Neil Palmer" <neilp@xxxxxxxxxxx>
  • Date: Tue, 28 Nov 2000 16:41:58 -0500

Pat,

Main usage is that one of our SDLC lines that we use for Passthru support during the day is changed to PPP answer mode in the evening and on weekends by running jobs on the job scheduler.  Yes, the job varies off our passthru line with VRYCFG and then does a STRTCPPTP command to start a PPP connection profile.  This causes the PPP line to activate and the SETMDMASC('END') in the PPP line description changes the modem to Async mode (no programming needed).  Without the PTF's on V4R2 & V4R3 it would NOT set the 7852 modem back to Sync mode when the PPP profile was ended.

I hadn't really seen this described anywhere either - just noticed that Fax/400 could use the 7852 in Async mode without having to change any switches, so I looked found the SETMDMASC parm on the line description.

...Neil



Pat Barber <mboceanside@worldnet.att.net>
Sent by: owner-midrange-l@midrange.com

2000/11/28 15:44
Please respond to MIDRANGE-L

       
        To:        MIDRANGE-L@midrange.com
        cc:        
        Subject:        Re: ECS Modem control





neilp@dpslink.com wrote:

Neil:

I assume that you guys have to vary off and vary on various line
descriptions to get the switch to work ????
ie:

vary off SDLC(ecs) line
vary on async line

I haven't seen this solution described but this beats flipping
the "dip" switches.

>
> For the 7852-400 modem the SETMDMASC('END') value on the Async line
> description will take care of switching from Sync to Async (and back
> to Sync when the line varies off).  We do this for PPP, and also for
> Fax, using the 7852.
> Depending on your OS/400 release level you may need a PTF to make this
> work correctly.
> MF21288 & SF57108 for V4R2; MF21674 & SF57540 for V4R3; SF56155 for
> V4R4
> Also see informational APAR II12085.
>
> PS - For V4R5 if you are using PPP with an answer profile you should
> also install SF64285 or your connection will fail.


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