User Manual

SDB670 – SERVICE MANUAL TNM-M-E-0032
May 13 Page 14 ABBREVIATIONS
ABBREVIATIONS
The following abbreviations are used through out this document. Whenever practicable, wherever
the abbreviation is first used the full meaning is given with the abbreviation in parenthesis, after
that only the abbreviation will be used.
LIST OF ABBREVIATIONS
Abbreviation Meaning
‘……’
Reference to a feature, label or setting exactly as it is displayed on the
equipment or software application.
2U Two Units (U = vertical measurement of 44.45 mm for equipment racks
AC Alternating Current
ADC Analogue to Digital Converter
AFC Automatic Frequency Control
AGC Automatic Gain Control
BER Bit Error Rate
BNC Bayonet Neill-Concelman
CoDec Coder Decoder
COSHH Control Of Substances Hazardous to Health
CRU Central Repair Unit
CTCSS Continuous Tone Controlled Sub-audible Squelch
CTS Clear To Send (RS232 flow control signal)
DAC Digital to Analogue Converter
DC Direct Current
DCS Digital Coded Squelch
DMR Digital Mobile Radio
DSP Digital Signals Processor
EMC Electromagnetic Compatibility
EMIF External Memory InterFace
ESDS Devices Electrostatic Discharge Sensitive Devices
ETSI European Telecommunications Standards Institute
FPGA Field Programmable Gate Array
FPP Field Personality Programmer
GPIO General Purpose Input/Output
GPS Global Positioning System
IB Isolated Base
IC Integrated Circuit
IEC International Electrotechnical Commission
IF Intermediate Frequency
I/O Input/Output
IP Internet Protocol
IS Isolated Site
LED Light Emitting Diode
LVDS Low Voltage Differential Signal
MCP Master Control Program
MMI Man Machine Interface
MOSFET Metal Oxide Semiconductor Field Effect Transistor
NC Not Connected