Triz TZ6100i, User Manual

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Subnet Mask
It is a 4-byte number, and it defines how many bits in the IP address designate the
network number. The bits set to 0 represent the size of the network. The ISP assigns a
Subnet mask to the DSL PCI modem.
SVC
SVC - Switched Virtual Circuit is an ATM connection that is set up every time you use
you modem with the PPP over ATM configuration. Currently most telephone companies
are not deploying this type of service.
T1.413 issue 2
ANSI standard for a physical layer implementation of an Asymmetric Digital Subscriber
Loop (ADSL) line using G.DMT line coding. The data rates from the network to the
modem are up to 8 Mbps and from the modem to the network up to 800 Kbps. The data
rate varies according to the distance from the customer house and the central office
modem. The DSL service provider specifies the type of service being provided.
T1
The US equivalent of E1. This is a Bell system term for a digital carrier facility used for
transmission of data through the telephone hierarchy at a transmission rate of 1.544
Mbps. Same as DS1.
Telco
The generic name for telephone companies throughout the world which encompasses
RBOCs, LECs and PTTs.
TPON (Telephony over Passive Optical Network)
Telephony using a PON as all or part of the transmission system between telephone
switch and subscriber.
UBR
UBR - Unspecified Bit Rate is a type of ATM service used to transport data over the
DSL line. This is the most common type of service offered by Telephone companies. It
does not not guaranty the delay of the data across the Internet.
UDSL (Unidirectional HDSL)
As proposed by one company in Europe. This has not been widely deployed.
Universal ADSL
UADSL is focused on providing a mass-market version of DSL, which is interoperable
with full rate DSL, but with fewer complexities and less overall requirements at a
tradeoff for speed. The solution is intended to reduce the need for a "splitter" box
installed outside the home or new wiring in the home. UADSL enables plug-and-play
and PC-integrated solutions. Commonly referred to as G.lite.