Impulse 7202 - Manual (Page 5)

Card Setup
Sealevel Systems COMM+232.PCI Page 2
Card Setup
Address and IRQ selection
The COMM+232.PCI is automatically assigned I/O addresses and IRQs by
your motherboard BIOS. Only the I/O address may be modified by the user.
Adding or removing other hardware may change the assignment of I/O addresses
and IRQs.
Clock Modes
The COMM+232.PCI employs a unique clocking option that allows the end
user to select from divide by 4 and divide by 1 clocking modes. These modes are
selected at Headers E1 and E2.
To select the Baud rates commonly associated with COM: ports (i.e. 2400,
4800, 9600, 19.2, … 115.2K Bps ) place the jumper in the divide by 4 mode
(silk-screen DIV4) position.
DIV1 DIV4 DIV4 DIV1
E1 E2
Figure 1 - Clocking Mode 'Divide By 4’