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VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- Visor & Deluxe (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=1)
-- Craddle connection - same as Palm ? (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=37)


Posted by yellow1 on 09-19-1999 08:54 AM:

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I'm a bit confused but my guess is that the connection on the bottom of the Visor (or wherever it is) is not the same as the Palm's since the GoType keyboard is apparently not compatible...
Too bad about connecting a GPS then ! Will have to get that Springboard module at...2xx dollars ?
I think they'll make for the low price by selling springboard expansions at a premium, can't blame them eh ?


Posted by amjohns on 09-19-1999 12:48 PM:

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Your right, they're completely different. They use differnt pinout and have different functions. Palm is a serial port, Visor has a USB. This make Palm accessories incompatible.

I think they were wise to add USB, but they maybe they should have kept the Palm connector and added a second for USB (ala extended ISA or VLB). Then again, there may be some licensing issues, I don't know.


Posted by emeyer on 09-19-1999 01:46 PM:

Arrow

The Serial and USB signals are both present on the Visor's cradle connectors.

The pinouts are:
<OL TYPE=1>
<LI>RXD,UART Receive Data, TTL level
<LI>KBD,HotSync 2, ground for keyboard
<LI>HS1,HotSync interrupt
<LI>GND,Ground
<LI>USB_D-,I/O USB Data- differential signal
<LI>USB_D+,I/O USB Data+ differential signal
<LI>VDOCK,Expansion module charging voltage
<LI>TXD,UART Transmit Data, TTL level
</OL>

This is from the Visor technical manuals (a gold mine of information).



[This message has been edited by emeyer (edited 09-19-1999).]


Posted by Speedy on 09-19-1999 06:39 PM:

Question

I heard about a guy who managed to get a regular serial modem working with his PalmPilot (with a homemade adapter that plugged into the hotsync port). Now the question: Would something like this be possible with the Visor? I really don't feel like having to buy a $129 springboard modem when I have a perfectly good spare 14.4K modem.

-Speedy

[This message has been edited by Speedy (edited 09-19-1999).]


Posted by emeyer on 09-19-1999 06:57 PM:

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I don't think that will be possible. They don't supply enough of the RS-232 signals to do that. The standard Palm serial signals are as shown:



You'll notice from my previous message that RTS,CTS and DTR are missing from the Visor's cradle connector. (It looks like we will need to use Springboard modems only.)

-Eric


Posted by ruexp67 on 09-20-1999 03:25 AM:

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I have the answer to the question of $$$ for cradles.

The USB comes with the Visor and Visor Deluxe, if you want the serial cradle is is a $19.95 addt'l cost and is in LIEU of the USB cradle.

Or you can buy a Serial Cradle for $29.99 separatly, if you do not order it with the Visor.


Posted by yellow1 on 09-20-1999 09:54 AM:

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So new cables would be required to plug in anything in the docking port then...Think I'm gonna get a PIIIx !!


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