Transmit Data from 64 or More Devices to One PC, or Vice-Versa
The code activated switch provides communication to four or more devices from one serial port without losing any data. Each port contains a dedicated UART and an 8K byte transmit and receive buffer, allowing each port to be configured independently for data rate, data format, and protocol. The Master port can send and receive data from one Slave port while the other Slave ports continue to buffer data. The Master can also broadcast the same message to two or more Slave ports at once. Model 232BSS4 can be configured to send data automatically to the Master port from each of the Slave ports when data is present with an optional preamble identifying the port. It can also provide two-way communications between the Master port and one Slave port at a time. Switching and control is done through user-defined three or four character command strings. All control sequences are stripped from the data stream, making the switch transparent to the Slave devices. Switches can be cascaded to expand the 232BSS4 to 64 or more devices. Two units can also be used back-to-back to provide automatic connection between devices over a single data channel. LEDs indicate when the unit is powered up and which port is selected to send data to the Master port. Data is supported from 1200 to 115.2K bps. The connectors are DB25 female for the master port, DB9 male for the four slave ports. Switch size is 7.5”(19.0cm) x 4.6”(11.7cm) x 1.2”(3.0cm). Model 232BSS4 Buffered Smart Switch is about $260. For a free full color catalog, write, call 815-433-5100 or visit www.bb-elec.com. #########
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Ottawa,
IL – A network management software
package has been added to the B&B Electronics 