Cisco Prisma II Reverse Optical Receivers Installation Guide
Glossary-10
78-748705-01 Rev C
Glossary
, Continued
TTCN
True tilt correction network
Tx
Transmit or transmitter
UBT
Unbalanced triple
UPS
Un-interruptible power supply
Upstream
Signal transmission toward the headend
UTP
Unshielded twisted pair
uV
One millionth of a volt (microvolt)
V
Volt
V AC
Volts alternating current
VBR
Variable bit rate
VCA
Voltage controlled attenuator
V DC
Volts direct current
VOD
Video-on-demand
VOM
Volt ohm meter
W
Watts
WDM
Wave Division Multiplexing
YEDFA
Ytterbium/erbium doped fiber amplifier