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Please specify your question about X.21 PRI-2 CARD This card presents a 30 channel, X.21/V.11 interface. Allows for faceplate (DB-15) or backplane (50 pin Champ) access. Configured as a Data Termination Unit (DTE). Supported bit rates are from 64 Kbps to 1920 Kbps. Also supported by this c *