The OKYSTAR OKY3504-0 is a multi-function rf switching system that can be used to switch, isolate and attenuate various high-frequency signals. It is a small, light-weight, low-profile device that is ideal for use in space-constrained environments. It provides four high-speed multi-function relay paths, each with an SPDT switch, an isolator and two adjustable attenuators. The attenuators are adjustable from –0 to –50 dB with 0.25 dB steps and are software-controlled. This device operates from a single 5V DC supply and features protection against voltage, current, and ESD/surge. It is also RoHS compliant.