Cisco ATUC-4DMT-ISDN Line Card
Installation and Configuration
Product Number: ATUC-1-4DMT-I(=)
This publication contains instructions that describe how to install and configure
Cisco ATUC-4DMT-ISDN line cards. This high-density line card supports discrete multitone (DMT)
over Integrated Services Digital Network (ISDN) protocols that employ 2B1Q- or 4B3T-based
You can only use this line card in Cisco 6260 digital subscriber line access multiplexers (DSLAMs) that
contain the NI-2 network interface processor module running Cisco IOS software. You can deploy the
line cards described in this document in either of two ways:
A direct connect configuration—Telco equipment routes DMT signals only between customer
modems and the line cards (see the "Line Card Direct Connect Deployment" section on page 11).
A splitter configuration—Telco equipment includes DMT/ISDN splitters to separate or combine
ISDN and DMT signals at the central office (CO) and at the customer site (see the "Line Card
Splitter Deployment" section on page 13).
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