Patent ID: 7566245

Claim:
An electromagnetic interference (EMI) system for use with an optical transceiver module, the EMI system comprising: an EMI collar configured to be secured to a housing of the optical transceiver module, the EMI collar having an opening formed therein that is configured to allow a latch lock pin of a latching mechanism of the transceiver module to be inserted through and retracted through the opening; and wherein the configuration of the EMI collar includes one or more electrically conductive elements that provide one or more electrically conductive pathways between the module housing and a cage if the EMI collar is secured to the housing and the optical transceiver module is contained within the cage, said one or more electrically conductive elements of the EMI collar include spring fingers that are spaced apart at predetermined fixed spatial intervals about a circumference of the EMI collar, each spring finger having a fold formed therein that biases a tip of the spring finger into electrically conductive contact with the module housing when the EMI collar is secured to the module housing, and wherein if the optical transceiver module has the EMI collar secured thereto and is contained within the cage, each fold is in electrically conductive contact with the cage, said one or more electrically conductive elements of the EMI collar include one or more electrically conductive bumps, and wherein if the EMI collar is secured to the housing of the transceiver module and the optical transceiver module is contained within a cage, said one or more electrically conductive bumps are in contact with a latch of the cage.