Lantronix 10 Network Card User Manual


 
Glossary of Terms
UDS-10 User Guide 11-9
Layer:
In networks, layers refer to software protocol levels comprising the architecture, with each layer
performing functions for the layers above it.
Line Speed:
Expressed in bps, the maximum rate at which data can reliably be transmitted over a line using given
hardware.
Local Network Interconnect (LNI):
A Port Multiplier, or concentrator supporting multiple active devices or communications controllers,
either used standalone or attached to standard Ethernet cable.
Logical Link:
A temporary connection between source and destination nodes, or between two processes on the same
node.
MAU:
Medium Attachment Unit, a device used to convert signals from one Ethernet medium to another.
Mbps:
Megabits per second.
MIB:
Management Information Base, a database of network parameters used by SNMP and CMIP (Common
Management Information Protocol) to monitor and change network device settings. It provides a
logical naming of all information resources on the network that are pertinent to the network's
management.
MII:
Media Independent Interface, New standard developed for Fast Ethernet in IEEE 802.3u specification.
The Fast Ethernet equivalent to the AUI in 10 Mbps Ethernet, allowing different types of Fast Ethernet
media to be connected to a Fast Ethernet device via a common interface.
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.