VERSITRON, Inc. offers 16-Channel video multiplexer systems for use over multi-mode fiber. Your installation would require the following:
Qty. 1 - FVTMH003 16-Channel Video Multiplexer Transmitter
Qty. 1 - FVRMH003 16-Channel Video Multiplexer Receiver
These devices require just a single strand of multi-mode fiber between them and communicate up to 3 km.
You can visit versitron(dot)com for more information or contact Greg at 800-537-2296 Ext. 20.