NEC PowerMate CT manual Serial Port Interrupts, System Board Jumper Settings

Serial Port Interrupts

The interrupts for serial port 1 and serial port 2 are given in the following table. If serial ports share an interrupt, verify that hardware and software added to the system can share these interrupts without problems.

Serial Port Interrupts

Port Interrupt

COM1IRQ04

COM2IRQ03

COM3IRQ04

COM4IRQ03

COM1IRQ03

COM2IRQ04

COM3IRQ03

COM4IRQ04

Jumper Settings

Jumpers on the boards and devices in the system are used to set the system configuration. Boards and devices using jumpers include:

!system board

!hard drive

!CD-ROM drive.

The following paragraphs list the jumpers and their factory settings.

System Board Jumper Settings

The system board has nine jumper blocks for configuring the system for particular system requirements. Use the following figure to locate the jumper blocks on the system board. See the table after the figure for jumper descriptions and factory settings.

Procedures for setting the jumpers are included in Section 4, “System Board.” Specifications for the system board are given in Section 9, “Specifications.”

Jumpers are set correctly at the factory for the system configuration. Only change or check the appropriate jumper settings. Otherwise, keep the jumpers at their factory settings.

2-4 System Configuration