Hello ! Do you have a Multiplexer MF - 20. Functional characteristics of the purchased goods: Formation of primary digital signals telecommunications. Technical characteristics of the purchased goods: A set of interfaces: support for at least twenty four channels of PM, support for at least b channel E1 (2048kbit / s), support for at least four Ethernet ports 10/100, support for at least four FXO telephone lines. Availability of boards: 12-1 , 14-1, 4-4-6, 2-2, AK4-1pc. Show More