• Uses standard RS232 serial and parallel Centronics interfaces
• Used for printer sharing, modem sharing, data collection, machine control, and serial networking
• Three model lines to choose from:
• MS- SERIES - 5 or 9 ports, all serial, all parallel, or mixed serial and parallel
• U-SERIES - 3, 6, or 9 ports, each port programmable as serial or parallel, input or output
• N-SERIES - 4, 8, 12, or 16 serial ports and 1 parallel port, supports file transfer at 115.2K
• Dynamically allocated buffer expandable to four megabytes
• Over 20 commands for controlling the flow of data
• Menus for configuration, port contention and access, and job control
• Supplied with MasterLink™ utility disk
• Advanced queue system controls access and priority of multiple inputs to multiple outputs
• From job control menu - view all jobs in queue and cancel, hold, or release them
• All configuration parameters can be saved in non-volatile memory

The Master Switch is a versatile product for interconnecting your computers and peripherals using the common serial (RS232) and parallel (Centronics) interfaces of your equipment. The switch accepts over 20 commands for controlling the flow of data. It may also be used automatically or be controlled by interactive menus. Applications for the switch include office automation, CAD/CAM, machine control, data collection, data communications, telecommunications, retail point-of-sale, and others.