"500H" Series and the Model 24SII DAC Data Acquisition and Control units connect between one host computer and multiple peripheral devices. These models are often used in industrial process-control environments (e.g., for allowing control of multiple numerical or assembly-line machines), in exchanging data between point-of-sale devices, or for operating a number of laboratory instruments or business machines from a central computer. They are especially effective in adapting small low-cost personal computers to these applications. Each unit features six modes of operation which may be easily configured to your application. The 500H series models are available with either 5 or 9 ports. The Model 24SII DAC unit is expandable from 4 to 24 ports in 4-port modular increments.
Telplex Models TX104 and TX108 are asynchronous statistical multiplexers which multiplex and demultiplex four or eight communications channels over a single channel. This single channel is typically a telephone line or cable. The TX24 will multiplex and demultiplex up to twenty channels. Programmable features include serial port parameters (baud rate, word size, etc.), data flow control, user-programmable strings to be sent to an external modem, and remote diagnostics/configuration capability. These units must be purchased in pairs.
Telplex Model TX104M is an asynchronous statistical multiplexer with built-in modem. Four individual communications channels are multiplexed into a single dial-up or leased telephone line, cutting phone line costs to a minimum. The TX104M features a V.22 bis internal modem which provides reliable communication at speeds up to 4800 bps. With V.42 bis protocol, the TX104M provides error correction and Classes 2-4 data compression. Compatible with most computers, printers, or peripherals, the TX104M ensures rapid throughput, and offers a variety of user-programmable features in order to meet your specific application requirements.