The CVT-232A-3 is a compact, rugged, industrial-grade, port-powered, 3-wire RS232 Isolator. The unit features 5000V opto-isolation circuitry and optically isolates three (3) RS-232 lines (TX, RX and GND), which effectively protects your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes.
The CVT-485_422-3 is a compact, rugged, industrial-grade, optically-isolated, port-powered RS232 to RS485 / RS232 to RS422 converter, which can be used to convert any standard RS232C port into a 2-wire half-duplex RS485 port or a 4-wire full-duplex RS485/RS422 port and vice versa.
The HUB-485-4 is a rugged, industrial-grade, optically-isolated RS-485 Hub / Splitter / Repeater, which can be used to expand RS-485 networks by splitting one RS-485 network into four (star wiring), in turn increasing the maximum number of nodes and the distance covered by an RS-485 network.
The USB-232-1 is a port-powered, bi-directional USB to RS232 adapter / USB to RS232 converter that can be used to convert any standard USB port (USB 2.0 - backward compatible) into a RS232C port and vice versa.
The SPD-422-1 is a passive, rugged, industrial-grade, 4-wire RS422/RS485/RS232 surge protector that can be used to limit the voltage surges and spikes introduced to the RS422/RS485/RS232 data lines. This industrial RS422/RS485/RS232 surge protector features 3-stage surge protection – Gas Discharge Tubes (GDT), protection resistors, and Transient Voltage Suppressors (TVS) - for maximum protection.