Bolymin BEGV643A Series, User Manual

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BEGV643A User Manual Ver.0
2
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2-1 Jumpers
This section is to indicate location and function of each jumper on BEGV643A, which user can arrange according
to the needs of different application desired. Be careful when setting jumper, user maybe need tool such as
needle-nose pliers to help setting. Please note, jumpers not described here are intended to keep as factory default
setting. Please consult Bolymin before trying to change default setting.
The table listed below describes location and function of each available jumper.
Jumpers: (Table 2.1)
Label Function
VR LCD contrast control
RG Frame ground
S2,S3 RS-422/RS-485 VDD/ground
JHG Screw hole ground
Detail location and function of each jumper is illustrated below.
2-1-1 Contrast Adjust
(Drawing 2.1.1)
VR Contrast adjust
10K ohm Inside default
N/A Outside