Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


modular chassis

A hardware device that is designed for expansion and accepts a variety of plug-in modules of different types. High-end network switches and routers are often built with a modular chassis. See line card.




A Modular Chassis
Cabletron's earlier MMAC PLUS was a network hub that supported Ethernet, Token Ring, FDDI and ATM networks. The boards plugged into the backplane, which was a bridge between the various topologies. (Image courtesy of Cabletron Systems.)






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).



Personal Use Only

Before/After Your Search Term
BeforeAfter
Modern UImodular connector
Modestomodular datacenter
MODFETmodular hub
modicummodular programming
modifier keymodular smartphone
modify structuremodular software
MODKAModular Windows
modommodularity
Modula-2modulate
Modula-3modulation

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design