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AIR-020 User Manual 8
2.1 Introduction
The following sections demonstrate the internal jumper settings and the external con -
nector pin assignments.
2.2 Jumpers
2.2.1 Jumper Description
AIR-020 can be configured to satisfy specific application requirements by setting
jumpers. A jumper is a metal bridge used to close an electric circuit. 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, connect the pins with the clip. To open a
jumper, remove the clip. Sometimes a jumper will have three pins, labeled 1, 2, and
3. For these jumpers, connect either pins 1 and 2, or 2 and 3.
The jumper settings are schematically diagrammed in this manual as follows:
A pair of needle-nose pliers may be necessary when working with jumpers. Users
with concerns regarding the ideal hardware configuration for your application should
contact your local distributor or sales representative before making any changes.
Usually, only a standard cable is required to make most connections.
2.2.2 Jumper List
Table 2.1: Jumper Setting
Location Function
JPSON1 Auto Power On Setting
RECOVERY1 System recovery button
RESET1 System reset button
COM1_SW1/COM2_SW1 COM port setting
COM1_SW2/COM2_SW2 COM port debug
MPWR_SEL1 mPCIE voltage setting