Wall-mounted-data-port, china poe switch manufacturers - wholesale 2020 high quality poe switch products in best price from certified chinese ethernet switch wholesalers, original switch manufacturers, suppliers and factory on made-in-china.com. Purpose. the purpose of this rule is to ensure the integrity of the video, voice, and data communication systems on the wmu campuses. scope. this rule applies to the university’s kalamazoo campus facilities (main campus, parkview campus, and oakland drive campuses) and to the regional site facilities, except for those regional sites that obtain network services from another institution.