The Definity TN573B Switch-Node Interface for r routes circuit, packet, and control messages.

The Definity TN573B Switch-Node Interface for r is installed in a SN carrier in a CSS that terminates a fiber optic link from a SNI in another SN carrier, and EI in a PPN, and an EI in an EPN.

One TN573B is used per PN and supports the TN574 DS1 converter circuit pack.

The Definity TN573B Switch-Node Interface for r and higher provides an interface to the single-mode fiber optic transceiver and supports the TN1654 and TN574 DS1 converter circuit pack.

2 Year Warranty