Advantech EI-52, Руководство пользователя

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EI-52 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
EI-52 can be configured to satisfy specific application requirements by setting jump -
ers. 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 diagramed 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 Settings
Location Function
JCMOS1 Clear CMOS
PSON1 Auto Power On Setting
SW_422_1 RS485/RS422 Fail Safe Enabled/Disabled
SW_422_2 RS485/RS422 Fail Safe