ABSTRACT -- The Remote Environmental Control System is a system that can be used to remotely control electronic equipment through various communication media such as telephone, modem, remote control, and computer through serial port. This system is intended to control and monitor the status of the network equipment located in the rural areas unattended by technical personnel in the Government Information Network (GINET) project. This paper presents the design of the system in three levels, the physical design, the RS485 protocol design, and the software design. The software design uses the object-oriented design technique and design pattern to reduce implementation complexity which lead to less development time, easier validation, and ease of maintenance.

KEYWORDS -- Embedded System, Home Networking, Information Appliance