Keyspan 1.9 User Manual

The Keyspan High Speed USB Serial Adapter provides ONE male DB9 serial port which 
supports RS-232 asynchronous communications at data rates up to 230 Kbps. Please read our 

 for a list of serial devices that have been tested with the Keyspan 

High Speed USB Serial Adapter.

AppleTalk (LocalTalk) and Geoport are not supported on the Keyspan High Speed USB Serial 
Adapter's port. Please note that AppleTalk (LocalTalk) and Geoport are not disabled by the 
Keyspan High Speed USB Serial Adapter if you have these features installed already.

Keyspan High Speed USB Serial Adapter

Keyspan High Speed USB Serial Adapter

The male DB9 serial port  on the Keyspan Adapter is seen as a serial port by Mac OS.   The 
Keyspan serial port is interfaced via the "CommToolBox" API and is then available to any program 
that accesses serial ports via this API.  For programs that don't use the CommToolBox to access 
serial ports, the Keyspan adapter can emulate the PRINTER and/or MODEM ports as found on 
older Macintosh computers.

Note: You can only have one PRINTER port on any given computer.  In 
order for the Keyspan adapter to emulate either of these ports, the 
PRINTER port must not be 'in use' or registered by other software or 
hardware.  For example, PRINTER port emulation is not available on a 
Mac that already has a PRINTER port builtin (any pre-USB Mac).  

This User Manual applies to the Keyspan High Speed USB Serial Adapter Software  for Mac OS. 

(rev 02may12JA) 

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