3.3.3 USB
3.3.4 DRMs Port
Fig. 3-1
The port is used for EP800 inverter firmware upgrade.
The USB drive should be formatted as FAT32 with no more than 32G in size.
The EP800 offers the flexibility to be upgraded for solar energy storage, allowing you
to harness more power form the sun. Additionally, it features a DRM interface
specifically designed to serve as a convenient ignition reserve port for generators,
ensuring a seamless integration of backup power solutions.
Table 3-5
PIN Category Definition Specifications
2
External DC input limit:
30VDC / 3A.
(For generator input)
Single-pole & double-throw
relay normally closed output
3
Single-pole & double-throw
relay normally open output
GEN NO
GEN NC
1
Single-pole & double-throw
relay common terminal
GEN COM
JUST POWER ON26
Warning
Only for USB drive access, not for USB charging.
6
B: RS485 differential signal -485-B3
5
A: RS485 differential signal +485-A3
4
Signal groundINS GND
Connect to meter A2
Connect to meter B2
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