StarTech.com ISA2S550 - Manual (Page 7)

IRQ Address
There are eight possible IRQ address settings (labeled 3, 4, 5, 9, 10, 11, 12, 15) for each
port (2 port version). For the single port model, you will have a jumper to configure
port A only.
1. Find an available IRQ on your system. Consult the user manual that came with your
OS for instructions, if necessary.
2. Set the IRQ line for each port by placing the jumpers according to the following
example:
In the example above, Port A is set to IRQ 4 and Port B is set to IRQ 3.
Specifications
Instruction Manual
4
COM 1 3F8-3FF Hex
COM 2 2F8-2FF Hex
COM 3 3E8-3EF Hex
COM 4 2E8-2EF Hex
COM 5 2F0 Hex
COM 6 3E0 Hex
COM 7 2E0 Hex
Interface ISA, 8-bit
Ports 1 x DB-9 male (ISA1S550)
2 x DB-9 male (ISA2S550)
Maxmium Data Transfer Rate 460 Kbits/sec.
Configurable IRQs 3/4/5/9/10/11/12/15
Configurable COM Port Number Settings 1 through 7
Chipset Hynix GM16C550