The 673T and 673R are a high−performance fiber optic transmitter and receiver for video signals up to 3G HD−SDI and dual link HD−SDI signals. The 673T converts up to four channels of SDI signals on BNC connectors to an optical signal that is transmitted over a single fiber optic cable. The 673R converts the optical signal back to SDI signals.

Specifications
-Max. Data Rate — Up to 3Gbps for each SDI input.
-HDTV Compatible.
-Multi–Standard Operation — SDI (SMPTE 259M), 3G HD–SDI (SMPTE 424M) and dual–link HD–SDI (SMPTE 372M).
-Laser Standards Compliance — IEC 60825–1, FDA 21CFR1040; Laser Class 1: Safety of laser products.
-System Range — 1000m (more than 3200ft).
-Fiber Cable — A single multi–mode OM3 fiber optic cable with SC connectors.
-Reclocking and Equalization per Channel.
-Indicators — Fiber Optic, Source & Input Indication LEDs.