Firmware version v415 for the ION7550 RTU series meter adds a number of security enhancements to your meter. Features such as the closing of unused ports, changing port assignments and tracking security events can help minimize the possibility of unauthorized intrusion. For additional information please review the Whats new document (7EN12-0321-00_Whats_new_ION7550_ION7650_firmware_v415) in the downloadable content below. SHA256 File signatures: 820f11e40711252e4d6d9389e6894f3402cc46bf93dbbe413ad8c97b73ebc107