Serial Expansion Device
▪ One way RS232 serial port and one way network port expand into four-way RS232/RS485 serial port input, output;
▪ Four-way RS232/RS485 serial port data input, packaged to one way RS232 or network port output, four-way extended serial port can return data at the same time;
▪ Output data can be designated to any of the four-way output;
▪ Can set the baud rate and the calibration method of each expansion port;
▪ Expanded original central control RS232 port can cascade output, does not hinder data usage of the original central control RS232 port;
▪ ID addresses can be set through the network;
▪ Through the rear panel indicator, can clearly observe the operation of the port;
▪ Comply with Keatoo 2+1=1U standard
![SPA4248-45 SPA4248-45]()