Glossary

Term	Main definition
UAR	Universal Asynchronous Receiver Hits - 840
UART	Universal Asynchronous Receiver / Transmitter Hits - 904
UBR	Unspecified Bit Rate Hits - 888
UCS	Universal Card Slot Hits - 893
UDP	Universal Distribution Panel; User Datagram Protocol Hits - 878
UDP/IP	User Datagram Protocol / Internet Protocol Hits - 760
UEP	Unequal Error Protection Hits - 911
UHF	Ultra High Frequency Hits - 895
UL	Underwriters Laboratories Hits - 898
ULSI	Ultra Large Scale Integration Hits - 912
UMS	Umbrella Management System Hits - 891
UMTS	Universal Mobile Telecommunications System (3G) Hits - 847
UNI	User Network Interface Hits - 876
UPS	Uninterruptible Power Supply Hits - 899
UPT	Universal Personal Telecommunications Hits - 836
UQM	Uplink Quality Monitor Hits - 892
URL	Universal Resource Locator Hits - 862
USB	Upper Sideband; Universal Serial Bus Hits - 850
USP	Universal Services Processor Hits - 881
UTOPIA	Universal Test and Operations Interface Hits - 822
UTP	Unshielded Twisted Pair Hits - 869