Patent ID: 7721012

Claim:
A method for modifying an address of two or more optic modules comprising: providing a host and two or modules, wherein the host is connected to a first module and a second module via a shared two line path and to the first module via a first transmit disable path and to the second module via a second transmit disable path; sending a first command to the first module and the second module via the shared two line path; receiving the first command at the first module and the second module; responsive to the first command, modifying operation of the first module and the second module to react to signals received by the first module and the second module via a transmit disable path as instructions to enable or disable module communication with the host; sending a disable signal from the host to the second module via the second transmit disable path thereby disabling communication via the shared two line path between the second module and the host; and sending an address change signal to the first module from the host via the shared two line path to thereby change the address of the first module.