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Keyspan Serial Assistant has been discontinued
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Keyspan USB Adapter contains the drivers for the following adaptors:
  • One Port DB9:USA-19HS
  • Two Port Din8: USA-28XG
  • Four Port:USA-49WG
  • Other:UPR-112G
Note: While the Version 2.6 software may also function on the following Keyspan hardware, it is not supported
  • Twin Serial Adapter (p/n's: USA-28X, USA-28XA and USA-28XB)
  • PDA Adapter (p/n's: USA-19 and USA-19Qi)
  • High Speed Serial Adapter (p/n's: USA-19W and USA-19QW)
  • Serial Adapter (p/n USA-18X)
  • USB Serial Adapter (p/n USA-28)
  • 4-port Serial Adapter (p/n's: USA-49W, USA-49WLC and more...

What's New

Version 2.6:
  • adds 10.6 compatibility (32bit and 64bit). 
Note: Version 2.6 is only compatible with Mac OS X 10.6 (aka Snow Leopard). It is NOT compatible with older versions of Mac OS X (10.5 or older).

Requirements

  • Mac OS X 10.6 or later
  • Keyspan USB adapter.


*Previously available here

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Keyspan Serial Assistant User Discussion

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Rschramm Member IconComment+2
Rschramm
+1

Link appears to be broken. I Get "The system cannot find the file specified. "

Reply2 replies
Version 2.6
MacUpdate-Lon
+1

I believe the link is fixed now.

Rschramm
+1

It works now, thanks for the quick help!

riqay Member IconComment+4
riqay
+0

According to the KeySpan FAQ entry on Leopard compatibility:

USB to Serial Adapters (any USA-xxx model adapter, any UPR-xxx port replicator)
Software version 2.4 or later - COMPATIBLE

Source:
http://keyspan.custhelp.com/cgi-bin/keyspan.cfg/php/enduser/std_adp.php?p_faqid=697

Reply0 replies
Version 2.5
Shaahin Member IconComment+21
Shaahin
+0

Is this Leopard compatible? it says, there is no release notes available.

Reply0 replies
Version 2.5
Anonymous Member IconReview
Anonymous
+0

Worked clean as the breeze for me...what OS'es does everyone have?

Reply0 replies
Version 1.8
Anonymous Member IconReview
Anonymous
+0

I've the same problem. Try to use "Pacifist" software (http://www.macupdate.com/info.php/id/6812). You will be able to read your package and install manually the driver.

Reply0 replies
Version 1.8
Halh1g Member IconComment+2
Halh1g
+0

Same problem as before: pre-installation script cannot cannot be executed...

Reply0 replies
Version 1.8
Anonymous Member IconReview
Anonymous
+0

I have the same trouble : pre-installation script cannot cannot be executed...

Do you have any solution to this problem ?

Reply0 replies
Version 1.7
Anonymous Member IconReview
Anonymous
+0

Hmmm... but I don't have either of my Keyspan devices connected... Maybe it has a problem with ANY USB device? A scanner/printer/Modem and imate USB/ADB convertor are present on mine.

Reply0 replies
Version 1.7
Anonymous Member IconReview
Anonymous
+0

I've reported the issue via Keyspan's support function.

Reply0 replies
Version 1.7
Anonymous Member IconReview
Anonymous
+0

Same problem. The packet will not launch. I have attemped to download from this sight and Keyspans sight. Nothing

Reply0 replies
Version 1.7
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Ratings

Overall
(3)
Current Version (2.x)
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Details

Downloads 37,585
Version Downloads 10,673
Type Drivers / Other
License Free
Date 01 Sep 2009
Platform OS X / PPC 32 / Intel 32
Price Free