Advantech PPC-157T, Руководство пользователя

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PPC-157T User Manual 28
5.1 Jumpers and Connectors
This chapter supplies more detailed information about the internal jumper settings
and an outline of the I/O ports available on the PPC-157T.
5.1.1 Setting Jumpers
The Panel PC can be configured to match the needs of each application by setting
the jumpers. A jumper is the simplest kind of electrical switch. It consists of two metal
pins and a small metal clip (often protected by a plastic cover), which slides over the
pins to close the circuit and connect them. To ”close” a jumper, connect the pins with
the clip. To “open” a jumper, remove the clip. Sometimes a jumper has three pins,
labeled 1, 2, and 3. In this case, it is possible to connect either pins 1 and 2 or pins 2
and 3 to each other.
Open Closed Closed 2-3
The jumper settings are schematically depicted in this manual as follows:
Open Closed Closed 2-3
A pair of needle-nose pliers may be helpful when working with jumpers. If there are
any doubts about the best hardware configuration for a particular application, contact
the local distributor or sales representative before making any changes.
An arrow is printed on the motherboard to indicate the first pin of each jumper.
1 2 3