Optolink Ltd.
Manufacturers of optoelectronic components for industrial, medical, military, and telecommunication applications. Range includes attenuators, couplers, connectors, lasers, multiplexers, and transreceivers. From UK. This is the parent company of Isocom.
http://members.visi.net/~rfwojcik/rv.htm
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http://www.webspawner.com/users/carcoptyltd/