RS232 Switches are versatile, intelligent, and allow for seamless communication between your PC and multiple RS-232 devices. The RS232 Data Access Switch is an ASCII character controlled switch used to connect one to six RS-232 async control devices to 4 to 152 async ports. Connection is made by entering the port number or port name. Disconnection is via entering a control code or lowering an RS-232 control lead. Either the port being controlled or the originating control port can lower a control lead to force a disconnect. These RS232 Data Switches can be used to access any async device from a terminal or PC. The Access Switch is especially suited for accessing RTUs, modems, DSUs, multiplexers and hubs locally or via modems from a remote location. The RS232 Switches have a minimum of two input ports allowing both local control and remote dial-in access. All input ports can be active at the same time. The user accessing the switch always gets positive feedback. Before connect and after disconnect, the Access Switch gives the user an “Access >>” prompt. Port switching requires no cryptic code entry. Ports can be accessed by name or by port number.