
Glossary
BCC (Block Check Characters)
The original level 2 error checking scheme for
Bit Error Rate
The number of bit errors divided by the number of bits received.
Bit Rate
The speed at which bits are transmitted, usually expressed in bits per second (bps).
Block Error Rate
The number of block errors divided by the number of blocks received. Whether there is one error or ten errors in a block, it is still counted as one block error.
Block Errors
Tells how many blocks had at least one error.
Block Sizes
The Bell system uses a block size of 1000 bits. CCITT, the
BOPs (Bit Oriented Protocols)
Bit Oriented protocols are level 2 protocols developed for a variety of system requirements. Some of the more common BOPs are HDLC, SDLC, ADCCP, and LAPB.
bps
Bits per second.
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