UT-7722 is a PCI to 2-port RS-485/422 serial card, capable of converting single-ended PCI signals to RS-485/422 signals with fast transient suppression protector . When the two ends of the TVS tube are subjected to an instantaneous high-energy shock, it can reduce the impedance of its two ends at a very high speed and absorb a large current, thus clamping the voltage at its two ends to a predetermined value and protecting the circuit components behind from damage due to transient high-voltage shock. This protector can effectively suppress lightning (LIGHTNING) and ESD, provide 600W lightning surge protection for signal lines, as well as surges and transient over voltages generated by various causes on the line, and the extremely small inter-pole capacitance ensures high-speed transmission of RS-485/422.

Hardware Interface

Signal

lConnection type: DB9 male 2

lBus: PCI

lRS-422: T/R+, T/R-, RXD+, RXD-, GND

lRS-485:Data+(A), Data-(B), GND

Transmission rate: 300bps-115.2Kbps

Data bits: 5, 6, 7, 8

Stop bits: 1, 2

Parity bits: support odd, even, no parity, blank 0,sign1

Flow control: RTS/CTS XON/XOFF

Operating temperature: - 40 C~85 C

Interface protection: RS-485/422 interface signal line 600W surge protection

Support system: Windows2012/8/8.1/2016/10/XP/Vista/7/2003/2008/ 98/NT4.0/Linux