Lucent Technologies LambdaUnite Installation Manual page 321

AWG
American Wire Gauge
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B Bandwidth
The difference in Hz between the highest and lowest frequencies in a transmission channel. The
data rate that can be carried by a given communications circuit.
Baud Rate
Transmission rate of data (bits per second) on a network link.
BDFB
Battery Distribution and Fuse Bay
BER (Bit Error Rate)
The ratio of error bits received to the total number of bits transmitted.
Bidirectional Line
A transmission path consisting of two fibers that handle traffic in both the transmit and receive
directions.
Bidirectional Ring
A ring in which both directions of traffic between any two nodes travel through the same
network elements (although in opposite directions).
Bidirectional Switch
Protection switching performed in both the transmit and receive directions.
BIP-N (Bit Interleaved Parity-N)
A method of error monitoring over a specified number of bits (BIP-3 or BIP-8).
Bit
The smallest unit of information in a computer, with a value of either 0 or 1.
Bit Error Rate Threshold
The point at which an alarm is issued for bit errors.
BLD OUT LG
Build-Out Lightguide
Bridge Cross-Connection
The setting up of a cross-connection leg with the same input tributary as that of an existing
cross-connection leg. Thus, forming a 1:2 bridge from an input tributary to two output
tributaries.
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365-374-059
Issue a, January 2002
Lucent Technologies G L O S S A R Y
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