Glossary
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.