Release Notes 
                                for

           Digi PC/X, MC/X and Modem/X and Classicboard (ISA and PCI)
                        OS/2 2.x Device Driver
                        DGX.SYS  V2.2.7

                           March 21, 1999


       OS Release(s) :   IBM OS/2 1.3, 2.00, 2.01, 2.1, 2.11, 3.0, 4.0
                         Software:       P/N 80006697B
                         Diskette:       P/N 40001842B
                         Release Notes:  P/N 93000312B



	1. Enhancements

        - Added support for the PCI Classicboard.  With PCI adapters the
          port, IRQ and number of ports are read from the adapter's PCI
          configuration space and not from the config.sys "Device=" line.
          Thus whereas to load support for an 8 port ISA Classicboard one
          might specify:

               DEVICE =C:\DIGI\dgx.sys /P:140 /C:8 /I:5 /n:"digi"0

          for a PCI Classicboard one need specify only:

               DEVICE=C:\DIGI\dgx.sys /n:"digi"0


	2. Bug fixes

	3. Known limitations

	- A maximum of 32 ports are available using DGX.SYS in OS/2 sessions.

	- Though many channels can be active at 1200-4800 baud, only a few
	  channels can sustain the higher baud rates of 9600 or more without
	  data loss and serious system performance degradation.

        - Though the driver supports both ISA and PCI adapters, it does not
          support both ISA and PCI adapters in the same machine.

	4. Manual Errata


------------------------------------------------------------------------

                            Release Notes 
                                for

           Digi PC/X, MC/X and Modem/X and Classicboard (ISA and PCI)
                        OS/2 2.x Device Driver
                        DGX.SYS  V2.2.7(Beta)

                           August 15, 1998


       OS Release(s) :   IBM OS/2 1.3, 2.00, 2.01, 2.1, 2.11, 3.0, 4.0
                         Software:       P/N 80006697B1P
                         Diskette:       P/N 40000309R1P
                         Release Notes:  P/N 93000312B1P



	1. Enhancements

        - Added support for the PCI Classicboard.  With PCI adapters the
          port, IRQ and number of ports are read from the adapter's PCI
          configuration space and not from the config.sys "Device=" line.
          Thus whereas to load support for an 8 port ISA Classicboard one
          might specify:

               DEVICE =C:\DIGI\dgx.sys /P:140 /C:8 /I:5 /n:"digi"0

          for a PCI Classicboard one need specify only:

               DEVICE=C:\DIGI\dgx.sys /n:"digi"0


	2. Bug fixes

	3. Known limitations

	- A maximum of 32 ports are available using DGX.SYS in OS/2 sessions.

	- Though many channels can be active at 1200-4800 baud, only a few
	  channels can sustain the higher baud rates of 9600 or more without
	  data loss and serious system performance degradation.

        - Though the driver supports both ISA and PCI adapters, it does not
          support both ISA and PCI adapters in the same machine.

	4. Manual Errata


------------------------------------------------------------------------

                            Release Notes 
                                for

           Digi PC/X, MC/X and Modem/X and ISA Classicboard
                        OS/2 2.x Device Driver
                        DGX.SYS  V2.2.6A2

                           July 30, 1998


       OS Release(s) :   IBM OS/2 1.3, 2.00, 2.01, 2.1, 2.11, 3.0, 4.0
                         Digi P/N: 80006697



	1. Enhancements

	2. Bug fixes

        - Fixed a problem in the interrupt service routine where boards
          based on the new 16654 UARTs would sometimes hang the OS.

	3. Known limitations

	- A maximum of 32 ports are available using DGX.SYS in OS/2 sessions.

	- Though many channels can be active at 1200-4800 baud, only a few
	  channels can sustain the higher baud rates of 9600 or more without
	  data loss and serious system performance degradation.


	4. Manual Errata


------------------------------------------------------------------------

			         Release Notes 
 				      for

	      Digi PC/X, MC/X and Modem/X OS/2 2.x Device Driver
	        	      DGX.SYS     V 2.2.6

				   11/04/97


	OS Release(s) :	 IBM OS/2 1.3, 2.00, 2.01, 2.1, 2.11, 3.0

	Diskette(s)   :  P/N 40000309P (3.5")
			 P/N 40001029  (3.5" combo disk)


	1. Enhancements

        -  Ports can be anywhere in any order (address-wise).

	2. Bug fixes

	- Fixed bug that rendered chaining of interrupts unusable.
	- Created workaround for OS/2 Print Spooler bug which would cause
	  redirected Digi printer ports to be paused

	3. Known limitations

	- A maximum of 32 ports are available using DGX.SYS in OS/2 sessions.

	- Though many channels can be active at 1200-4800 baud, only a few
	  channels can sustain the higher baud rates of 9600 or more without
	  data loss and serious system performance degradation.


	4. Manual Errata

------------------------------------------------------------------------



			         Release Notes 
				    for
	    Digi PC/X, MC/X and Modem/X OS/2 2.x Device Driver
			 DGX.SYS     V 2.2.5a3 Beta

		 IBM OS/2 1.3, 2.00, 2.01, 2.1, 2.11, 3.0

				  02/04/97

	1. Enhancements

        -  Ports can be anywhere in any order (address-wise).

	2. Bug fixes

	- Fixed bug that rendered chaining of interrupts unusable.

	3. Known limitations

	- A maximum of 32 ports are available using DGX.SYS in OS/2 sessions.

	- Though many channels can be active at 1200-4800 baud, only a few
	  channels can sustain the higher baud rates of 9600 or more without
	  data loss and serious system performance degradation.


	4. Manual Errata