WDM optical module is to be used with 3400FR 1RU passive optical frame. Also available in standalone enclosure (+SA). Bi-directional mux/demux of up to 16 wavelengths in the 1270nm to 1610nm spectrum (ITU-T G.694.2 compliant). Applicable for multi-channel transport of video, audio, data, control in fiber limited applications, cost reduction exercises through fewer leased fibers, studio and facility extension/expansion and STL and TSL links.