Brief Introduction

UT-728

The UT-728 PCI converter card, compatible with RS-422 and RS-485 standards, is capable of converting single-ended PCI signals to balanced differential RS-422/RS-485 signals with a fast transient voltage suppressor protector, which is designed to protect RS-422/RS-485 interfaces with today's advanced TVS (TRANSIENT Under normal conditions, the TVS tube is in a high resistance state. When the two ends of the TVS tube are subjected to an instantaneous high-energy shock, it can reduce the impedance at both ends at a very high rate and absorb a large current, thus clamping the voltage at both ends at 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, providing 600W of lightning surge protection power per line, as well as surge voltages and transient over-voltages generated by various causes on the line, and the extremely small inter-pole capacitance ensures high-speed transmission of the RS-422/RS-485 interface.