Patent ID: 7211728

Claim:
An opto-electronic system comprising: an optoelectronic module including a housing with an optical connector, a groove and a first electrical connector, and a cage assembly for mounting on a host printed circuit board, the cage assembly including: a faceplate having an opening through which the opto-electronic module passes, a cage forming a cavity for receiving the opto-electronic module therein with the optical connector extending outwardly therefrom, and a second electrical connector for mating with the first electrical connector, wherein the cage assembly includes a stop extending into the opening for receipt in the groove during insertion of the opto-electronic module into the cage, enabling the opto-electronic module to pass into the cage unobstructed, the cage assembly further includes a stop projection for preventing other non-compatible opto-electronic modules with similar cross-sectional dimensions to the optoelectronic module, but without the groove, from becoming fully inserted into said cage assembly.