speakup, grml and braille blazer

[Cody Hurst]

Then I probably don't have what you are alluding to. The only cables I  
have are a parallel db25 with male connectors on each end, and a db9  
with female on each end. I am connecting the two via a converter that  
converts parallel db25 to a male db9. I can't just connect one to ther  
other, without this connecter I can't do anything. What would I do now  
since I probably don't have the cable you are refering to?

Cody
On May 19, 2008, at 5:43 PM, Kerry Hoath wrote:

> don't confuse a null modem with a modem.
> A modem is a device that lets your computer talk over phone lines.
>
> You should not have any rj11s near your bns; only serial cables.
>
> There are 2 layouts most commonly used for serial ports, the pc  
> style (dte)
> and the modem style dce.
> The blazer has a pc-style wiring on it but the gender is female.
> You need to connect pc to pc so you need a null modem.
> This is like in nedworking where you wish to connect pc to pc with  
> no hub or
> switch you need a cross-over cable.
>
> A null modem is a device or cabling wire map that allows 2 computers  
> to talk
> to each other over a serial link.
> Assume we have 2 computers with a 9-pin serial connection wishing to  
> talk to
> each other.
> The cable in use is a straight through. Pin 2 is transmit and pin 3 is
> receive and 5 is signal ground.
> If the pins are wired straight through then the transmit and receive  
> pins
> are wired transmit to transmit and receive to receive.
>
> This will not work as the transmit pin on one computer needs to be  
> wired to
> the receive pin on the other. A null modem or cable does this for us.
> Usually it's wired as
> 2 to 3, 3 to 2, (transmit to receive)
> 5 straight through (signal ground)
> 4 to 6, 6 to 4, (cts to rts)
>
> Then cd is tied on one end to dsr and possibly dsr.
> ----- Original Message -----
> From: "Cody Hurst" <churst35 at verizon.net>
> To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca 
> >
> Sent: Tuesday, May 20, 2008 11:19 AM
> Subject: Re: speakup, grml and braille blazer
>
>
> I'm not quite understanding the logic behind the null modem, but ok.
> When I plug the rj11 end of the cable to the pc, how do I tell speakup
> to look on teh modem port if linux by default is in compatible with
> most modems?
>
> On May 19, 2008, at 5:14 PM, Kerry Hoath wrote:
>
>> put a gender changer on the blazer to change the serial port from
>> female to
>> male on the blazer.
>> plug a 25-pin female to 9-pin mail into the converter.
>> plug the null modem from converter to pc.
>>
>> You could also get a 25-pin null modem cable; gender bend the blazer
>> end
>> then convert it down to 9-pin on the pc end.
>>
>> the cable needs to be null modem and you need things of the right
>> gender as
>> the port on the blazer for serial is female.
>> Regards, Kerry.
>>
>> ----- Original Message -----
>> From: "Cody Hurst" <churst35 at verizon.net>
>> To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca
>>>
>> Sent: Tuesday, May 20, 2008 11:07 AM
>> Subject: Re: speakup, grml and braille blazer
>>
>>
>> Well I have a db9 null modem cable, but how would I do this
>> configuration? the db9 end will not fit on the blazer and vice versa.
>> More insight on this would greatly be appreciated.
>> On May 19, 2008, at 5:02 PM, Kerry Hoath wrote:
>>
>>> the blazer requires a null modem cable to connect it to the computer
>>> not a
>>> straight through serial cable.
>>> Regards, Kerry.
>>>
>>> ----- Original Message -----
>>> From: "Cody Hurst" <churst35 at verizon.net>
>>> To: "Speakup is a screen review system for Linux."
>>> <speakup at braille.uwo.ca
>>>>
>>> Sent: Tuesday, May 20, 2008 8:03 AM
>>> Subject: speakup, grml and braille blazer
>>>
>>>
>>> Hello all,
>>>
>>> I just realized I could whip up an external synth with a db25
>>> serial cable, a converter and a db9 serial cable, however when I  
>>> boot
>>> grml I use this boot command
>>>
>>> grml speakup_synth=bns, ttyS0 and get no speech. On the blazer's
>>> speech config menu I set it from parallel to serial. however I tried
>>> starting grml with it on serial and parallel and still no speech. I
>>> know this can be done but I just don't know how. I'd like to know
>>> what
>>> I"m doing wrong here. Thanks for any hep.
>>>
>>> Cody
>>> _______________________________________________
>>> Speakup mailing list
>>> Speakup at braille.uwo.ca
>>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>>>
>>> _______________________________________________
>>> Speakup mailing list
>>> Speakup at braille.uwo.ca
>>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>>
>> _______________________________________________
>> Speakup mailing list
>> Speakup at braille.uwo.ca
>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>>
>> _______________________________________________
>> Speakup mailing list
>> Speakup at braille.uwo.ca
>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>
> _______________________________________________
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> Speakup at braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>
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