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Speed on serial port

 
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Hervé
Guest
PostPosted: Thu Mar 15, 2007 9:12 pm    Post subject: Speed on serial port Reply with quote
Hi all,

I have :
- Computer A
- Modem A
- Modem B
- Computer B

Computer A is calling Computer B.
Modem is in auto off-hook, so when it's ringing, it off hook automatically
Computer A sends information to modem A at 19200 bps.
Modem A sends information to Modem B
Modem B send information to Computer B at 9600 bps.

I need Modem B to send information to Computer B at 19200 bps.
Computer B can't send information to Modem B that's why the Modem B doesn't
know the speed on the serial port of Computer B


Has anybody a solution to my problem ?

The modem is from Agere technology.


Best Regards
Hervé
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Aaron Leonard
Guest
PostPosted: Tue Mar 20, 2007 3:18 am    Post subject: Re: Speed on serial port Reply with quote
Hervé,

Here are some options.

1. Configure the answer modem (modem B) to lock its DTE speed at 19200 bps.

If modem B does not have such an option, then

2. Configure the answer modem to have its DTE speed follow its DCE speed.
Then, configure the originate modem to only use a DCE rate of 19200 bps.

Regards,

Aaron

---

~ Hi all,
~
~ I have :
~ - Computer A
~ - Modem A
~ - Modem B
~ - Computer B
~
~ Computer A is calling Computer B.
~ Modem is in auto off-hook, so when it's ringing, it off hook automatically
~ Computer A sends information to modem A at 19200 bps.
~ Modem A sends information to Modem B
~ Modem B send information to Computer B at 9600 bps.
~
~ I need Modem B to send information to Computer B at 19200 bps.
~ Computer B can't send information to Modem B that's why the Modem B doesn't
~ know the speed on the serial port of Computer B
~
~
~ Has anybody a solution to my problem ?
~
~ The modem is from Agere technology.
~
~
~ Best Regards
~ Hervé
~
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Hervé
Guest
PostPosted: Wed Mar 21, 2007 1:53 pm    Post subject: Re: Speed on serial port Reply with quote
Quote:
Hervé,
Hi Aaron,


Quote:
Here are some options.

1. Configure the answer modem (modem B) to lock its DTE speed at 19200
bps.

If modem B does not have such an option, then

2. Configure the answer modem to have its DTE speed follow its DCE speed.
Then, configure the originate modem to only use a DCE rate of 19200 bps.

Thank you for this information, i searched on the at command list for the
modem, and i don't find any way to do that you offer me.

I just got the information from the reseller, that it's not possible on this
version of modem. He is going to sell us the previous version of modem which
is with a connexant chip instead of an Agere chip.

Quote:
Regards,

Aaron

Thanks a lot,

Best Regards,
Hervé
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