Table of Contents
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Glossary
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U
UAS
Unavailable Seconds
UNI
User Network Interface
UOC
Universal Optical Connector
UPD/INIT
Update/Intialize
UPSR
Unidirectional Path Switched Rings
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V
VF
Voice Frequency
VLAN
Virtual Local Area Network
VLSI
Very Large Scale Integration
VM
Violation Monitor
VMR
Violation Monitor and Removal
VoIP
Voice over Internet Protocol
VONU
Virtual Optical Network Unit
VPN
Virtual Private Network
VT
Virtual Tributary
VT1.5
Virtual Tributary 1.5 (1.728 Mb/s)
VT-G
Virtual Tributary Group
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GL - 1 4
365-372-603R2.0
Issue 1 January 2009
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Table of Contents
