User`s manual

Solving Problems
SuperDrive 6.10 | 65
COM1 Serial Port:
Interrupt request 04
Input/Output Range
03F8-03FF
COM2 Serial Port:
Interrupt request 03
Input/Output range
02F8-02FF
COM3 Serial Port:
Interrupt request 04
Input/Output range
03E8-03EF
COM4 Serial Port:
Interrupt request 03
Input/Output range
02E8-02EF
· Several computers may have serial communication problems when COM2 is used. When COM2 is used,
check if this port is operating properly.
· Check if the serial port is in conflict with some other device that uses the same serial port. Serial ports of
laptops may generate conflict with other devices, mainly with optical devices.
· Do not use the COM3 port if there is a serial mouse or any other device connected to COM1 port.
Usually, COM1 and COM3 ports share the same IRQ and cannot be used simultaneously. It is also true
for COM2 and COM4 ports. If possible, assign a different IRQ for COM3 and COM4 ports in order to
solve the conflict.