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The subrack of the PT-50T 5256 PCM device is 5U (or 9U with fan) and is 19 inches wide. Support a variety of analog and data access, photoelectric integration. The maximum 64Kbps access capacity is 240, and the maximum E1 access capacity is 240. The PT-50T 5256 PCM device can be connected to other transmission devices via an optical transmission interface or a standard E1 interface. PT-50T 5256 PCM devices enable point-to-point, point-to-multipoint communication via E1 or fiber.