line card


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line card

A printed circuit board that provides a transmitting/receiving port for a local area network (LAN) or a carrier's telephone or wide area network (WAN). Line cards plug into telephone company switches and high-end routers, which have a modular chassis that accepts a range of cards.

Small and medium-size routers have a fixed number of ports, typically Ethernet, and the line card circuitry is built into each port. In a user's desktop or laptop computer, the counterpart of the line card is a circuit on the motherboard or a plug-in network card (see network adapter).
References in periodicals archive ?
The AD9559 is the industry's most flexible high-performance dual adaptive clock translation solution for high-density line cards and OTN applications.
The additions to the Cisco 12000 Series Router are: the new Cisco 12800 Routers, a 40 gigabit-per-second (Gbps)-per-lot system with complementary higher density OC-192/STM-64 and OC-48/STM-16 line cards that use the greater system capacity, and new Cisco 12010 and 12006 Routers, 2.5-Gbps-per-slot systems offered in 10- and six-slot chassis.
"The SPECTRA 1x2488 delivers the highest levels of integration with the lowest power consumption and smallest footprint enabling global equipment manufacturers to migrate to higher capacity and function with seamless line card upgrades.
TELECOMWORLDWIRE-(C) 1994-9 M2 COMMUNICATIONS LTD Texas Instruments (TI) and Siemens Information and Communication Networks Group have developed a line card for Siemens' EWSD central office switches.
Together with Infineon's recently announced STS-768 MUX/DEMUX chipset, the 40G framer-mapper, offers high-level integration and feature rich functionality to address high-density line card applications for the 10G and emerging 40G markets.
At the local exchange the PSTN line card is replaced with a standard ISDN line card plus a modification to the software to route the PSTN calls over the ISDN line.