Microwave Radio Communications CodeRunner 4, Operator'S Manual

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Preface
x CodeRunner 4 Operator’s Guide 400438-1 Rev. J
When contacting Customer Service or Technical Support, please have the following
information available:
• Model number and serial number of the unit.
• Approximate purchase date.
• Unit identification markings and revision.
• Be prepared to accurately describe the problem.
Glossary
This section describes commonly used acronyms and abbreviations used in
telecommunications and those specific to MRC Broadcast Products Group.
Term Definition
ØLK Phase Lock
3RU 3 Rack Unit height
A & C Alarm and Control
ADPCM Adaptive Differential Pulse Code Modulation
AFC Automatic Frequency Control
AGC Automatic Gain Control
AIS Alarm Indication Signal (all one’s)
AMI Alternate Mark Inversion, line code format for traffic data.
AVG Average
B8ZS Bipolar 8 Zero Substitution, line code format for traffic data.
BB Baseband
BER Bit Error Rate
BNC Bayonet lock coaxial connector
BPF Band Pass Filter
BPS Bits per second
CCITT International Telegraph and Telephone Consultative Committee, a
telecommunications standardizing committee of the ITU.
Composite A band or grouping of frequencies and/or subcarriers, including video,
occupied by the signal in a radio transmission system. Same as
baseband signal.
dB Decibel
dBm A unit of measurement referenced to one milliwatt.
DMUX,
DEMUX Demultiplexer
Duplex A channel capable of transmitting information simultaneously in either
direction
E1 2.048 Mbps traffic rate
EIA Electronic Industries Association, an industry association that
establishes various standards.
EMC Electromagnetic compatibility