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Glossary of Terms
11-10
UDS-10 User Guide
Modem:
A modulator-demodulator device for changing transmission signals from digital to analog for
transmission over phone lines. Used in pairs, one is required at each end of the line.
MOP:
Maintenance Operations Protocol, a DEC protocol used for remote communications between hosts and
servers.
Multicast:
A multicast is a message that is sent out to multiple devices on the network by a host.
Multilink PPP:
The ability of a dialup device to allocate more than one channel of bandwidth to a particular
connection. Generally, this is termed to be the ability of an ISDN device to bond two B-channels
together into a single data pipe, but some vendors can perform the same function with asychronous
dial-up connections over modems by having a second connection initiated to support the additional
bandwidth requirements.
Multiplexer:
A device that allows several users to share a single circuit. It funnels different data streams into a
single stream. At the other end of the communications link, another multiplexer reverses the process by
splitting the data stream back into the original streams.
Multiplexing:
Transmitting multiple signals simultaneously on a single channel.
Multiport Repeater:
A repeater, either standalone or connected to standard Ethernet cable, for interconnecting up to eight
Thinwire Ethernet segments.
Name Server:
Software that runs on network hosts charged with translating (or resolving) text-style names into
numeric IP addresses.
NetWare:
A Novell developed Network Operating System (NOS). Provides file and printer sharing among
networks of Personal Computers (PCs). Each NetWare network must have at least one file server, and
access to other resources is dependent on connecting to and logging into the file server. The file server
controls user logins and access to other network clients, such as user PCs, print servers, modem/fax
servers, disk/file servers, etc.