Maybe something like the Canon Canobeam DT-130 Type SFP: http://www.usa.canon.com/cusa/professional/products/free_space_optics/data/dt_130_type_sfp http://www.u

Maybe something like the Canon Canobeam DT-130 Type SFP: http://www.usa.canon.com/cusa/professional/products/free_space_optics/data/dt_130_type_sfp http://www.usa.canon.com/cusa/professional/products/free_spa... But, you know, more than one... or something.