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Name:Xuchangguo
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Address:No.98,Fengxin Rd,Renhe Street,Yuhang District,Hangzhou,China.
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DM-F2-VA External Display Unit for J50157 DC Energy Meter
2026-04-25
External Display for J50157-FA DC Electronic Meter
External Display for J50157-FA DC Electronic Meter
Learn more detailed information below
▌General Information
The external display M5001-FA is detached from the DC meter to display the meter values independent from the meter’s physical position inside the system. It is connected to the meter via a secure data line. The meter will be checked for a correct connection cyclically at any time.
The display shows billing relevant data for a charging process as well as other information.
▌Drawing
▌Installation
The connection between the external display and the meter is realized by a RS485 line connected to the RS485 ports.
▌Physical Interfaces

Serial number | Item | Description |
2PIN interface (from left to right) | ||
1 | Power input + | DC12V-36V |
2 | Power input - | |
4PIN interface (from left to right) | ||
1 | · Power input + | The output voltage is the same as the power input. Used for connecting the power input of the electricity meter. |
2 | · Power input - | |
3 | RS485-A | Used for connecting to any RS485 port. |
4 | RS485-B | |
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