The Magic Series controllers feature a fanless thermal design that takes into account the PCBA processing technology while the aluminum heat sink is well designed to maximize the heat source device (MOS, inductor) externally. The 30A solar controller requires vertical placement and the upper part of the shell specially reserved air outlet to ensure the convection of the hot air generated by the controller to timely reduce the temperature of the controller body.
The RS-232 interface complies with the interface standard for serial data communication established by the Electronic Industries Alliance (EIA). The original number is EIA-RS-232 (232, RS232 for short). It is widely used for computer serial interface peripheral connections. Connect cables and mechanical, electrical, signal, and transfer processes. solar controller 12v
RS-232 vs. RS-485
1.Anti-interference: RS485 interface is a combination of balanced driver and differential receiver, which has good anti-noise interference. The RS232 interface uses a signal line and a signal return line to form a common transmission form. This common transmission is prone to common mode interference.
2. Transmission distance: The maximum transmission distance of the RS485 interface is 1200 meters (9600bps), which is actually up to 3000 meters. The RS232 transmission distance is limited, and the maximum transmission distance is 50 meters. In fact, it can only be used at about 15 meters. diy solar charge controller
3. Communication capability: The RS-485 interface allows up to 128 transceivers to be connected on the bus. Users can easily establish a device network using a single RS-485 interface. RS-232 only allows one-to-one communication.
4. Transmission rate: The RS-232 transmission rate is low. In asynchronous transmission, the baud rate is 20Kbps. The maximum data transfer rate of RS-485 is 10Mbps. 30amp solar charge cntroller
5, signal line: RS485 interface half-duplex network, generally only need two signal lines. The RS-232 port generally uses only three lines of RXD, TXD, and GND.
6, electrical level value: RS-485 logic "1" with the voltage difference between the two lines is + (2-6) V; logic "0" with the voltage difference between the two lines - (2-6) V means. The voltage of any signal line in RS-232-C is in a negative logic relationship. Namely: logic "1", -5 - -15V; logic "0" +5- +15V.
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