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OVERVIEW

In the Sercalo SX switches, the optical switching function is realized by a silicon MEMS chip, on which a mirror can be moved in and out of the optical path by electrostatic actuation. The miniature SX switch is only available in its latching variant, where a bistable suspension mechanism keeps the last selected state in power off.

To operate the switch, 5V and 0V are applied on pins 1 and 2, which are used by the internal DC-DC converter to supply a high voltage for the actuator control. CMOS or TTL logic levels on pins 3-4 control the electrostatic actuator.

To set the switch state in the latching variant, pin 3 respectively pin 4 are set to logic high (5V) for 20 ms and the corresponding switch state is selected. At rest pins 3 and 4 should be pulled to 0 V and must not be floating.

TECHNICAL SPECIFICATIONS

(for single mode fibers¹)

¹ for multimode: Wavelength range: 600 – 1700 nm; IL @ 1300 nm: <1.2 dB max; CT max: >40 dB; RL max: 35 dB; resp. time: <20ms.
² value @ 25 °C, without connectors.
³ for constant temperature and polarisation.