Locating Jumpers & Connectors
Setting Jumpers
You configure your PCM-3420 card to match the needs of your application by setting jumpers. Jumpers are the simplest kind of electric switch. They consist 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 would2 | connect either |
| | 3 | |
pins 1 and 2 or 2 and 3. | | 1 | |
| | |
Open | Closed | Closed 2-3 |
1 2 3
The jumper settings are schematically depicted as follows:
A pair of needle-nose pliers may be helpful when working with jumpers.
If you have any doubts about the best hardware configuration for your PCM-3420 application, contact your local distributor or sales representative before you make any changes.
1 0 PCM-3420 User's Manual
