Impulse 7803 - Manual (Page 4)

Card Setup
Sealevel Systems COMM+8.LPCI Page 2
Card Setup
Address and IRQ selection
The COMM+8.LPCI is automatically assigned I/O addresses and IRQs by your motherboard BIOS or by a ‘Plug-n-
Play’ Operating System. Adding or removing other hardware or moving the adapter to another slot may change the
assignment of I/O addresses and IRQs.
Baud Rates and Oscillator value
The following table shows some common data rates and the rates you should choose to achieve them when using the
COMM+8.LPCI. If the O/S of choice is Windows 95/98/ME/2000/NT/XP, the oscillator value (7.3728 MHz) will
be automatically entered into the ‘Advanced Tab’ on 95/98/Me/2000/XP Device Manager applet. When using
Windows NT, the ‘Advanced Ports’ applet in the Control Panel should be launched and the oscillator value may be
entered in the ‘Advanced’ tab. When using any other OS (i.e. Linux, or QNX) the following tables should be used.
For this Data Rate Choose this Data Rate
1200 bps 300 bps
2400 bps 600 bps
4800 bps 1200 bps
9600 bps 2400 bps
19.2K bps 4800 bps
57.6 K bps 14.4K bps
115.2 K bps 28.8K bps
230.4K bps 57.6 K bps
460.8K bps 115.2 K bps
If your communications package allows the use of Baud rate divisors, choose the appropriate divisor from the
following table:
For this Data Rate Choose this Divisor
1200 bps 384
2400 bps 192
4800 bps 96
9600 bps 48
19.2K bps 24
38.4K bps 12
57.6K bps 8
115.2K bps 4
230.4K bps 2
460.8K bps 1