1 When there is no access to the 0 port and the communication port, the power supply will not be damaged if reversed 2 When the power is not connected, the communication port should be able to withstand A-to-ground, B-to-ground, 30V between A and B, and the 485 communication port should not be damaged after 10 seconds 3 When the power is turned on, the voltage of A to ground is 30V, B+ is 30V to ground, and the voltage between A and B is 30V to ground, and cannot be damaged after 10 seconds of pressure 4 Good-quality engineering plastic material have high mechanical strength, good heat resistance and good electrical insulation 5 RS485 analog extension board come with stable structure, excellent performance and long service life
What's in the box
1 x Extension Board Module
