The MEMS Optical Switch Module (Size 2 and Size 3) operates through a 16-pin connector. The pin assignments for RS-232 and TTL control interfaces are listed in tables 1, 2, and 3 respectively. The electrical connector is a Molex 87833-1620 male connector, which mates with the female connector. MEMS-based switches offer high reliability that passed well over 10⁹ cycles of switching tests. The design of. Sercalo's optical MEMS switches are the best choice for optical switches in Network supervision and optical test and measurement because they exhibit solid state reliability, ultra small insertion loss and long-term stability. Since 1999 Sercalo Microtechnology Ltd. Built using DiCon's industry proven MEMS fiber optic switch technology, this optical switch offers. Sc us.