AMG Systems offers a range of media converters allowing cost-effective transmission of contact closures over large distances on optical fibre. These media converters provide data transmission of 16 uni-directional contact closure for relays, switches etc, providing communication over a single fibre optic core at up to 7km on Multimode fibre and up to 35km on Singlemode fibre. Both the receiver and transmitter can either be rack mounted, or are available as small mains powered modules.