The 4x4 switch is a very fast opto-mechanical switch working over the spectrum from 1250 nm to 1650nm. The component is designed for optical switching in fiber optical instruments and networks. The highly reliable switching mechanism uses integrated micro mirrors and features fast switching time below 1 ms and below 2.0 dB insertion loss. The miniature package withstands rugged environments and is well suited for direct mounting on printed circuit boards. The switch is built by cascading 1x2 and 2x2submodules which are qualified according to Telcordia GR 1221. FEATURES reliable 2.0 dB insertion loss 1 ms response time non-latching APPLICATIONS Source Selection Protection Switching Monitoring Wavelength provisioning DESCRIPTION The 4X4 switches are composed of an optical subsystem and an electrical driver interface. The optical switching function is realized by silicon MEMS chips, on which a mirror can be moved in and out of the optical path by electrostatic actuation. The 4x4 switching function is realized by interconnecting 1x2 and 2x2 switch elements. In the latching SL variant a bistable suspension mechanism keeps the last selected state in power off. In the non-latching SW variant the switch elements return into the bar state when electrical power is removed. TECHNICAL SPECIFICATIONS Switch Unit Min Typ Max Wavelength Range nm 1250 1650 Insertion Loss dB 1.0 2.0 Crosstalk dB 65 55 Backreflection dB 55 50 Polarisation Dependent Loss dB 0.07 0.15 Switching Time ms 0.5 1 Fiber Pigtail μμ 9/125/900 Durability cycles no wear out Package Power Consumption during switching mW 75 200 Supply voltage V 4.75 5.25 V Logic level low V 0 0.5 Logic level high V 2.5 5.25 Operation Temperature °C 0 70 Storage Temperature °C -40 85 Size (L x W x H) mm 100x 100 x 8