, San Jose, CA, offers AEDA-3300 Series optical encoder engines for installation in a customer-supplied housing. The encoders are available in 600–20,000 cpr resolutions, and speeds up to 12,000 rpm, depending on resolution. Features include operating frequencies up to 1 MHz (resolutions <10,000 cpr) and 650 kHz (resolutions from 10,000–20,000 cpr), 2-channel quadrature and gated index channel outputs, and an integrated RS-422 differential line driver. Encoders have a total package size of 17 mm dia. by 24 mm high, with the same dia. regardless of resolution.