DMS-1200 Release 6 Operations Manual
Section 11 – Glossary
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11 Glossary
The following terms, acronyms and abbreviations appear in this manual.
AGC
Automatic Gain Control. AGC is widely used in communication systems to maintain
constant signal strength by varying the amplifier gain.
AGS
Automatic Gain Control System
ALC
Automatic Level Control
ARU
Add on Remote Unit
ATT
Attenuation. Reducing signal strength during transmission. Attenuation is the opposite of
amplification.
BIU
BTS Interface Unit. The unit in the SOLiD DAS topology that receives, combines, and filters
all the signal sources, and then sends them to the ODU.
BTS
Base Transceiver System
DAS
Distributed Antenna System. A network made up of several components that work together
to provide wireless service within a building or campus environment.
DMS
DAS Management Server. A device for managing, configuring and monitoring a SOLiD
DAS system.
DOU
Donor Optic Unit.
HARU
High Power Add on Remote Unit.
HROU
High Power Remote Optic Unit.
LD
Laser Diode.
LROU
Low Power Remote Optic Unit.
MDBU
Main Drive BTS Unit.
MROU
Middle Power Remote Optic Unit
MRU
Main Remote Unit
NOC
Network Operation Center
ODU
Optic Distribution Unit. The ODU converts the R F signal to an optical signal and transmits
it via fiber to the ROU.
OEU
Optic Expansion Unit. The unit in the SOLiD DAS topology that expands a DAS to include
multiple buildings and structures using only one strand of fiber.
PD
Photo Diode
PLL
Phase-Locked Loop
ROU
Remote Optic Unit. The unit in the SOLiD DAS topology that amplifies each of the signals
individually, and then sends the signals to the antennas via coax.
SD
Shutdown