Advantech PCL-746+, User Manual

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1 0 PCL-746+ User's Manual
Jumper settings
This section tells how to set the jumpers to configure your card. It
gives the card default configuration and your options for each jumper.
How to set jumpers
You configure your card to match the needs of your application by
setting jumpers. A jumper is the simplest kind of electric switch. It
consists of two metal pins and a small metal clip (often protected by a
plastic cover) that slides over the pins to connect them. To “close” a
jumper you connect the pins with the clip. To “open” a jumper you
remove the clip. Sometimes a jumper will have three pins, labeled 1, 2
and 3. In this case you would connect either pins 1 and 2 or 2 and 3.
You may find pair of needle-nose pliers useful for setting the jumpers.
If you have any doubts about the best hardware configuration for
your application, contact your local distributor or sales representative
before you make any changes.
Card Configuration
Each port of the PCL-746+ card has two associated status jumper
groups which require configuring prior to use. One group is to select
either RS-232 or RS-422/RS-485 communication protocols. The other
group selects RS-422 or RS-485. You will then need to select the cards
appropriate I/O address and IRQ.
Open Open Open Open Open Closed Closed Closed Closed Closed Closed 2-3 Closed 2-3 Closed 2-3 Closed 2-3 Closed 2-3