Serial Port Interrupts; Jumper Settings; Serial Port 1 And Serial Port 2 Interrupts - NEC PowerMate VT 300i Series Service And Reference Manual

Serial Port Interrupts

The interrupts for serial port 1 and serial port 2 are given in the following table.
Any interrupts used for the built-in serial ports are not available for ISA parallel
ports. Also, if serial ports share an interrupt, verify that hardware and software
added to the system can share these interrupts without problems.
Port
COM1
COM2*
COM3
COM4
COM1
COM2
COM3
COM4

Jumper Settings

Jumpers on the boards and devices in the system are used to set the system
configuration. Boards and devices using jumpers include:
T
system board
T
CD-ROM drive
T
fax/modem board
T
Zip drive
T
tape backup unit.
The following paragraphs list the jumpers and their factory settings.
Note
system configuration. If a jumper change is required, change
only the setting for that condition (see Section 4 for
procedures on setting jumpers).
2-4 System Configuration

Serial Port 1 and Serial Port 2 Interrupts

Interrupt
IRQ04
IRQ03
IRQ04
IRQ03
IRQ03
IRQ04
IRQ03
IRQ04
: Jumpers are set correctly at the factory for the