Avaya Definity TN2198 ISDN-BRI 2-Wire U Interface
Manufacturer Part No: 73732
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Allows connection to the ANSI standard 2-wire U-interface 2-wire interface from the TN2198 connects to an NT1 network interface 4-wire interface on other side of the NT1 may connect to 1 or 2 telephones 12-ports interface at the ISDN U reference point Requires packet control circuit pack (TN778) on R6si and packet bus equipped on R6vs
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