User's Manual

95
D
DCN
Data Communication Network is SDH network
that enables OAM communication between
individual network elements as well as inter
network element communication.
DHCP
Dynamic Host Configuration Protocol. A
protocol used by networked devices (clients)
to obtain various parameters necessary for
the clients to operate in an Internet Protocol
(IP) network. By using this protocol, system
administration workload greatly decreases,
and devices can be added to the network
with minimal or no manual configurations.
E
ELAN
Emulated Local Area Network. An emulated
LAN is a set of clients and servers
connected by virtual circuits over a network.
EOW
Engineering Order Wire. An operator's
communication channel that supports a 2-
wire analog telephone.
F
FRU
Field Replaceable Unit. A circuit board or part
that can be quickly and easily removed and
replaced by the user or by a technician
without having to send the entire product or
system to a repair facility.
FTU
Fan Tray Unit.
L
LC CONNECTOR
Lucent Connector. An optical fiber connector
terminates the end of an optical fiber, and
enables quicker connection and
disconnection than splicing. The connectors
mechanically couple and align the cores of
fibers so that light can pass. LC connectors
are replacing SC connectors in corporate
networking environment due to its smaller
size.
M
MAC ADDRESS
Media Access Control address. An address—
typically made up of numbers and letters—
assigned to your hardware that uniquely
identifies its place on the network.
O
OSPF
Open Shortest Path First. A dynamic routing
protocol for use in Internet Protocol (IP)
networks.
P
PDH
Plesiochronous Digital Hierarchy (PDH). A
technology used in telecommunications
networks to transport large quantities of
data over digital transport equipment such as
fibre optic and microwave radio systems.
S
SLAT
System Line-up And Test.
Glossary of Terms