B&B Electronics’ Model 232PTC9 permits two or more serial devices to share a serial port on a host computer. When one of the devices on either of the slave ports transmits data, it captures the data path to the master port and locks out the other slave port. When data transmission is finished, either slave port gets access to the master port by being the first to start sending data. The RTS line can also be used to control data flow to the master port. The 232PTC9 can be cascaded to combine as many devices as needed into one host port. A typical application would be to share one host port with several terminals, scanners, scales, or other devices that only need access to the host port occasionally as shown in Figure 1.
Serial port combiners improve system economy by allowing you to connect one PC port to several intermittent data sources. The ability to connect redundant peripherals to one PC port also increases reliability.
Serial port combiners improve system economy by allowing you to connect one PC port to several intermittent data sources. The ability to connect redundant peripherals to one PC port also increases reliability.
Model 232PTC includes power supply. Model 232PTC9 requires external 12 VDC @ 100 mA power. Order power supply separately.
