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Software Driver Installation
The LM104-P50 module includes two MS-DOS software drivers: one that is interrupt driven
(LM104INT.SYS) and one that uses polling (LM104POL.SYS). The interrupt driver is used in
most cases.
First, copy the files on the distribution diskette to a drive and directory on the host system.
For the interrupt driver, add the following line to the system’s CONFIG.SYS file:
DEVICE = [DRIVE:] [\PATH\] LM104INT.SYS [SWITCHES]
For the polled driver, remove any shorting jumpers on JP5 and add the following line to the
system’s CONFIG.SYS file:
DEVICE = [DRIVE:] [\PATH\] LM104POL.SYS [SWITCHES]
Where [DRIVE:] and [\PATH\] is where the driver files were copied to.
Valid switches are as follows:
/Onn describes the output buffer count, where 2 O
OO
O nn O
OO
O 90. The default is 8.
/Inn describes the input buffer count, where 2 O
OO
O nn O
OO
O 90. The default is 8.
/Pn selects the base I/O address. Set jumper JP4 on card to match.
1 Base Address 1E0 (default)
2 Base Address 300
3 Base Address 310
4 Base Address 320
/Dn assigns the MS-DOS device name, LON[n], i.e. LON1, LON2, etc.
/Z inhibits auto flush cancel.
/Qn selects the IRQ level (LM104INT.SYS only). Set jumper JP5 on card to match.
1 IRQ15 (for use with 80286 or higher only)
2 IRQ12 (for use with 80286 or higher only)
3 IRQ11 (for use with 80286 or higher only)
4 IRQ10 (for use with 80286 or higher only)
5 IRQ5 (Default)
6 IRQ3