The communication conversion circuit diagram between RS232 and RS485

Published:2011/9/18 21:32:00 Author:Ecco | Keyword: communication conversion | From:SeekIC

1. The circuit diagram is the combination of the communication conversion circuit between the RS48 and RS232, RS232 and TTL level (UART) serial converter circuit. 2. This circuit is basically proven, and some RS232-TTL's speed is up to 57.6KB / s. ADM483 requires +5V power supply, as the 78L05's efficiencyis not high. The serial get-power capacity is limited, and the output power has not reach 5V. It suggests that 485 chip uses 3.3V power supply.



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