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GL-6
Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
T
T1
Digital WAN carrier facility. T1 transmits DS1-formatted data at 1.544 Mbps through the telephone
switching network.
TAC
Technical Assistance Center.
ToD
Time of day.
TFTP
Trivial File Transfer Protocol.
U
UBR
Universal broadband router.
UTP
Unshielded twisted-pair.
V
VoIP
Voice over IP.
VPN
Virtual private network.
VXR
Voice Extension Ready.
X
X-level test point
A test point that is established by inserting a test signal of known amplitude into a fiber node and then
measuring the output level amplitude at the headend optical receiver.