Nortel NT8D02AB Meridian Phone Systems Rlse 03 16-Port Digital Line Card NT8D02AB 03. The Nortel Meridian NT8D02AB is a digital line card for Nortel Meridian phone systems. The Nortel NT8D02AB provides 16 digital line ports for Meridian digital telephones. The NT8D02AB multiplexes voice, data, and signaling path through a two wire TCM digital link. The Nortel digital line card works with Nortel CS1000E, CS100M, and Meridian 1 phone systems.Model Number: NT8D02ABPart Number: NT8D02AB 03