B&B Electronics ESCLP-100 - Manual - Manual (Page 15)

2.5.4 Fast RTS Toggle-On-Transmit ("/FT")
The /FT option causes the QCOM.SYS device driver to aggressively process the RTS
toggle-on-transmit protocol used in two-wire half-duplex environments. RTS will be deasserted
approximately one bit-time following the end of transmitted data. Without this option, the driver
may take up to 32 milliseconds to deassert RTS.
2.6 Overall Configuration Example
DEVICE=D:\OS2\QCOM.SYS (1,03F8,4) (3,3E8,15) (QSC-100,4) (ESI,D2000,8,300,10) (QS,25,100,5) /L
DEVICE=D:\OS2\MDOS\QVCOM.SYS (4,2E8,3)
{ The Quatech drivers are installed in the suggested locations on a Drive D:.
{ COM1 is installed at the standard base address 3F8 hex and standard IRQ4.
{ COM2 is used by a serial mouse. MOUSE.SYS controls this port, so it is not specified for
QCOM.SYS.
{ COM3 resides at the typical address for COM3, 3E8 hex, but uses IRQ15.
{ A Quatech QSC-100 PCI four-port PCI adapter supplies COM4 through COM7.
{ A Quatech ESI-100Q eight-port intelligent adapter providing COM8 through COM15 is
installed in a memory window starting at D2000 hex using IRQ10. DOS applications will
find the ports at I/O base addresses 300, 308, 310, 318, 320, 328, 330 and 338 hex. If the
"300" in the ESI-100Q's parameter grouping were to be replaced with "000", the ports
would be available only to OS/2 applications.
{ A Quatech QS-100 four-port adapter providing COM25 through COM28 is installed at
base address 100 hex using IRQ5. The four ports will be located at base addresses 100,
108, 110, and 118 hex.
{ A listing of installed COM ports will be displayed at boot time.
{ QVCOM.SYS is providing DOS and Win-OS/2 virtual serial port support.
{ COM4, on the QSC-100, is masquerading as a standard COM4 at base address 2E8 hex
and IRQ3 for DOS and Windows sessions.
Quatech Asynchronous Serial Device Driver for OS/2 12