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technical glossary, acoustics, physics, spanish

"SAN (Storage Area Network) glossary".

Glossary - Storage Area Network - System performance bottle-neck


B
Back up Copy the important data into a backing storage in case that the original is damaged or corrupted.
C
Chain network Type of network that all network nodes are connected one after one to be in series.
Clock tracing The way to keep the time on each node being synchronized with a clock source in a network.
I
IPA Intelligent Power Adjustment. The system controls and adjusts automatically the optical power in the transmission link in order to be against the situations like as fiber is broken, the performance of equipments trend to be inferior or the connector is not plugged well. Also the maintenance engineers are not hurt by the laser being sent out from the slice of broken fiber.
N
NE Network Element. A stand-alone physical entity that supports at least network element functions and may also support operations system function or mediation functions. It contains managed objects, a message communication function and a management applications function.
O
OADM Optical Add/Drop Multiplexer. A device that drops and/or adds one or more optical channels to a signal.
OCP Optical Channel Protection. With the way to back up the working optical channel, it supports primary channel with multiple wavelengths and standby one in order to be against the situation that there is any fault in the primary channel.
OLA Optical Line Amplifier. A device that amplifies an input optical signal without converting it into electrical form. The best developed are optical fiber doped with the rare-earth element erbium.
OLP Optical Line Protection. With the way to back up the working link, it supports primary optical transmitting link with multiple wavelengths and standby one in order to be against the situation that there is any fault in the primary link.
ONE Optical Network Element. A stand-alone physical entity in an optical transmission network that supports at least network element functions and may also support operations system function or mediation functions.
OTM Optical Terminal Multiplexer. A device that multiplex or demultiplex the optical signals into the transmission link or into the client side.
OTU Optical Transponder Unit. A device that access service signals compliant with standards at the client side and convert them into standard DWDM wavelength.
R
Ring network Type of network that all network nodes are connected one after one to be a cycle.
S
Service protection The measures to make sure the service transmitting not to be damaged or corrupted.
T
Topology It gives the situation all the various elements in a network are interconnected.
W
Wavelength allocation
Range of wavelength allocated to various users or network elements or for certain purposes.
WDM Wavelength-Division Multiplexing. WDM technology utilizes the characteristics of broad bandwidth and low attenuation of single mode optical fiber, employs multiple wavelengths as carriers, and allows multiple channels to transmit simultaneously in a single fiber.
WXCP Wavelength Cross-Connection Protection. The board supporting this function transmits the service signals into the working and protection boards respectively.
When necessary, it will switch between working and protection service channels through cross grooming capability in order to transmit the service without any faulty.