This 1x4 fiber optical switch is based on all fiber opto-mechanical technology with proven reliability. Therefore it can be used as 4 input ports and 1. ACP's MS Series switch connects optical channels by redirecting an incoming optical signal into a selected output fiber. The Switch offers ultra-high reliability and. Gezhi Photonics 1x4 Mechanical Fiber Optical Switch with compact mini size package. This is achieved using our patent-pending non-mechanical configurations with solid-state. The N7731C offers two independent 1x4 optical switches, ideal to connect up to four devices to a test setup, or to share up to four measurement instruments with the same device under test. Find out what's included and explore available upgrade options from Keysight.