CTI Products HIB-232 Serial Interface - Manual (Page 13)

HIB Hardware Reference Device Driver Installation
CTI Products, Inc.
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9
7. Device Driver Installation
For the HIB module to operate with the MCNRCD software, the CTIHIB.SYS
device driver must be loaded by CONFIG.SYS or CONFIG.NT as shown below:
OS Configuration File
DOS c:\config.sys
Windows 9x c:\config.sys
Windows NT, 2000 c:\winnt\system32\config.nt
Windows XP c:\windows\system32\config.nt
The CTIHIB.SYS device driver provides the communication interface between
the HIB and the MCNRCD software. If this device driver is not loaded properly,
MCNRCD.EXE will not function. The name of the device driver is
CTIHIB.SYS, and it can be found on your CTI MCN Remote Comparator
Display disk.
Use a text editor to insert the following line in CONFIG.SYS or CONFIG.NT:
DEVICE=C:\CTI\CTIHIB.SYS {options}
If no options are specified, the device driver will use COM1 as the default COM
port.
Options available for this driver include:
/Pn COM Port Number
Set the COM port that the HIB is connected to. The value “n” is 1 through
4 to specify COM1 through COM4 respectively. When you select the
COM port to use, make sure that no other device is using that port. Also,
make sure that the COM port’s interrupt is not being used by any other
device. If so, you must also specify the /Un option described below.
/Un Use a Different IRQ
Change the COM port interrupt request number (IRQ) to the IRQ “n”,
where “n” is between 1 and 7. If the serial port in use is COM3 or COM4,
you may want to use a unique, unused IRQ for that port. Many serial ports
and internal modems allow the selection of a non-standard IRQ such as
IRQ2 or IRQ5. The table below shows the standard COM ports supported
in a PC, along with their standard IRQ numbers.
Device IRQ
COM1 4
COM2 3
COM3 4
COM4 3