Appendix D. Glossary
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OSU 300 User Manual
D-9
point-to-point
Type of communications link that connects a single device to another single
device, such as a remote terminal to a host computer.
POP
point of presence. Physical place within a LATA (local access and transport area)
where a long distance carrier or a cellular provider interfaces with the network
of the local exchange carrier (LEC). A POP is usually a building serving as the
point of termination which houses switches and transmission equipment.
protocol
A set of rules controlling the orderly exchange of information between stations
in data communications networks or systems.
PSTN
public switched telephone network. Usually refers to the world wide voice tele-
phone network available for public use.
red alarm
Unframed all ones signal (keep alive signal). A red alarm is declared on detec-
tion of LOS or OOF not caused by an alarm indication signal (AIS) that persists
for more than two seconds.
remote configuration
A feature designed into ADTRAN products that allows remote units to be con-
figured from a local unit or a VT 100 compatible terminal.
router
A device that supports communications between networks. Routers are similar
to bridges, with the exception that routers provide more functionality (such as
finding the best route between networks and providing network management
capabilities).
service
The provision of telecommunications to customers by a common carrier, admin-
istration, or private operating agency, using voice, data, and/or video technolo-
gies.
service provider
A company that delivers or sells a telecom service.
Summary of Contents for 1200218L1
Page 8: ...viii...
Page 14: ...Table of Contents xiv OSU 300 User Manual 61200663L1 1...
Page 18: ...List of Tables xviii OSU 300 User Manual 61200663L1 1...
Page 24: ...Chapter 1 Introduction 1 6 OSU 300 User Manual 61200663L1 1...
Page 38: ...Chapter 2 Installation and Operation 2 14 OSU 300 User Manual 61200663L1 1...
Page 64: ...Chapter 4 Status 4 8 OSU 300 User Manual 61200663L1 1...
Page 72: ...Chapter 5 Statistics 5 8 OSU 300 User Manual 61200663L1 1...
Page 104: ...Appendix C Acronyms Abbreviations C 4 OSU 300 User Manual 61200663L1 1...
Page 116: ...Appendix D Glossary D 12 OSU 300 User Manual 61200663L1 1...
Page 122: ...Index Index 6 OSU 300 User Manual 61200663L1 1...
