Fiber optic module and system including rear connectors

A method of mounting a module within a chassis comprising:

• providing the chassis including a front opening and a module mounting location, a holder positioned within an interior of the chassis at the module mounting location and accessible through the front opening, the holder holding a fiber optic adapter with a connector of a fiber optic cable received in a rear of the adapter, and further providing a module adapted to be mounted at the mounting location, the module including a rear face with a fiber optic connector;
• removing the holder and the fiber optic adapter from the interior of the chassis through the front opening;
• removing the connector of the fiber optic cable from the rear of the adapter and inspecting an endface of an optical fiber within the fiber optic cable;
• replacing the connector with the fiber optic cable within the rear of the adapter;
• replacing the holder within the chassis at the mounting location;
• inserting the module within the chassis through the front opening at the mounting location and engaging a front of the adapter with the connector of the rear face of the module.

A telecommunications module comprising:

• a housing defining an interior and including first and second opposing sides, a front face, a rear face and a back defining a rear-most extension of the housing;
• the rear face positioned adjacent one of the sides of the housing in a recess and accessible from a rear of the housing;
• a mounting flange extending beyond each of the side of the housing, one flange extending substantially further from the adjacent side than the other flange;
• at least one fiber optic connector mounted to the rear face and positioned to inserted into a mating adapter with a rearward movement of the housing;
• at least one cable exit positioned in the front face of the housing, each cable exit including a bell shaped outer extension beyond the front face;
• a first fiber optic cable within the interior of the housing extending from the at least one fiber optic connector of the rear face to an optical component mounted within the interior of the housing;
• a second fiber optic cable within the housing extending from the optical component to the at least one cable exit in the front face.

A fiber optic telecommunications chassis comprising:

• a housing with a first major side, a second major side, and a pair of opposing transverse sides extending between the major sides defining an interior with an front opening and a back substantially closing off the interior opposite the front opening;
• a plurality of mounting locations defined for telecommunications modules inserted through the front opening with the module generally oriented parallel to one of the transverse sides;
• each mounting location including an adapter holder positioned adjacent one of the first or second major sides, the adapter holder removably mounted within the interior of the housing and including at least one fiber optic adapter, each fiber optic adapter including a front end and a rear end, each end configured to receive a mating fiber optic connector;
• each adapter holder orienting the at least one fiber optic adapter with a front end positioned to receive the mating fiber optic connector inserted through the front opening toward the back and generally parallel to the sides;
• the adapter holder positioned to hold the at least one adapter within the interior of the housing at a location behind the front opening and forward of the back, so that a fiber optic cable with a mating fiber connector may be directed to and inserted within the rear end of the adapter;
• the adapter holder removable from the interior of the housing through the front opening so that the rear end of the at least one adapter may be accessed outside of the interior.