Advantech PCL-849 manual Card Configuration, Default Settings, Address and Interrupt Setup

Card Configuration

Each port on the PCL-849 card has a jumper and a DIP switch which require configuring prior to use. The DIP switch sets the port to the appropriate I/O address and speed mode. The jumpers set the port's IRQ.

Default Settings

The board is shipped with default settings. If you need to change these settings, however, see the following sections. Otherwise, you can simply install the card. Note that you will need to disable your CPU card's on-board COM ports, if any, or set them to alternate addresses / IRQs.

PCL-849 Default Configuration

Setting	Default function
JPI	IRQ 12
Speed mode	1x
IRQ mode	Share
Base address	Address 300H
Vector address	Interrupt 280H
Address mode	Enhance

I/O Address and Interrupt Setup

Next, you will need to select an IRQ (interrupt request) number, and an I/O base address for the PCL-849.

Model Setup (base address setting)

The card base address is affected by the setting of the Mode 1 switch. Standard mode or enhanced mode is selected as shown.

1 4 PCL-849 User's Manual