Intelligent Communication Controller with one RS-485 port and one RS-232/RS-485 port There are many applications in the industry that use RS232 devices. Nowadays, it becomes important to link all these devices for automation and information. Usually RS232 devices are more scarce in computers and widely distributed in the industry. So it is not a good idea to use a multiserial card to connect all RS232 devices together. The I-7521 can be used to link multiple RS232 devices in an RS485 network. The RS485 protocol is famous for its easy maintenance, simple wiring, stability, reliability and low cost.
