Terms - Raisecom RC3000E Product Description

Raisecom
RC3000E (P100R001) Product Description

7.3 Terms

1+1 protection
A
Alarm masking
Automatic Laser
Shutdown (ALS)
Auto-negotiation
B
Bracket
C
Cyclic
Redundancy
Check (CRC)
E
Error code
Ethernet
ETSI 600 cabinet
A 1+1 protection architecture has one normal traffic signal, one
working transport entity, one protection transport entity, and a
permanent bridge.
At the source end, the normal traffic signal is permanently bridged
to both the working and the protection transport entities. At the sink
end, the normal traffic signal is selected from the better of the two
transport entities.
Due to the permanent bridging, the 1+1 protection architecture does
not allow an unprotected extra traffic signal to be provided.
The device does not record alarms complying with the masking rules
nor report the alarms to the NMS.
The technology that is used for automatically shutting down the
laser to avoid the maintenance and operation risks when the fiber is
pulled out or the output power is over great.
The interface automatically chooses the rate and duplex mode
according to the result of negotiation. The auto-negotiation process
is: the interface adapts its rate and duplex mode to the highest
performance according to the peer interface, that is, both ends of the
link adopt the highest rate and duplex mode they both support after
auto-negotiation.
Small parts at both sides of the chassis, used to install the chassis
into the cabinet
The sender calculates a checksum according to the transmitted data
before transmission. Then the checksum is transmitted with the data.
The receiver adopts the same algorithm to calculate the checksum of
the transmitted data. If the checksum of both the sender and receiver
is identical, the transmission is accurate.
Bits of the received and sent signals are inconsistent with each other.
It is founded by Xerox Corporation and defined by DEC, Intel, and
Xerox. Ethernet is the most widely used LAN. Its rates include 10
Mbit/s, 100 Mbit/s, and 1000 Mbit/s. Ethernet adopts CSMA/CD
mechanism and complies with IEEE 802.3 standard.
Cabinet with width of 600 mm, depth of 600 mm, compliant with
the ETSI standard
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