Lantronix XPress-DR-IAP Podręcznik Użytkownika Pobierz pdf (Strona 142)

Glossary of Terms

MJ:

Modular Jack. A jack used for connecting voice cables to a faceplate, as for a telephone.

MMJ:

Modified Modular Jack. These are the 6-pin connectors used to connect serial terminal lines to

terminal devices. MMJs can be distinguished from the similar RJ12 jacks by having a side-locking tab,

rather than a center-mounted one.

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.

A multicast is a message that is sent out to multiple devices on the network by a host.

Transmitting multiple signals simultaneously on a single channel.

A repeater, either standalone or connected to standard Ethernet cable, for interconnecting up to eight

Thinwire Ethernet segments.

MOP:

Maintenance Operations Protocol, a DEC protocol used for remote communications between hosts and

servers.

Multicast:

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:

Multiport Repeater:

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Lantronix XPress-DR-IAP Podręcznik Użytkownika Strona 142