Triz TZ6100i, User Manual

Page: 70 / 74

70
ONU (Optical Network Unit)
A form of Access Node that converts optical signals transmitted via fiber to electrical
signals that can be transmitted via coaxial cable or twisted pair copper wiring to
individual subscribers.
PCI Bus Slot
This is a slot on the motherboard of your computer that is used to connect PCI adapter
cards. A PCI bus slot is the shortest of the slots and should be white. The picture to the
right shows 4 PCI slots on a motherboard.
PON (Passive Optical Network)
The usual acronym for a fiber based transmission network containing no active
electronics.
POTS (Plain Old Telephone Service)
The only name recognized around the world for basic analog telephone service. POTS
takes the lowest 4kHz of bandwidth on twisted pair wiring. Any service sharing a line
with POTS must either use frequencies above POTS or convert POTS to digital and
interleave with other data signals.
PPP
PPP stands for point-to-point protocol. This is a term for a type of network connection
used between two points.
PPP over ATM
PPP over ATM - It is also known as RFC 2364. It is a transport protocol that creates a
Point-to-Point link over ATM cells which are carried on the DSL line. Your DSL modem
supports this protocol.
PTT
The generic European name usually used to refer to state owned telephone
companies.
PVC
PVC - Permanent Virtual Circuit is an ATM connection that is established during the
configuration of your DSL modem. It is a permanent connection in the sence that it is
setup from the moment you first configure your modem to connect to the Internet.
RADSL (Rate Adaptive ADSL)
A version of DSL where the modems test the line at start up and adapt their operating
speed to the fastest the line can handle. The modems can adjust the data rate within 32
kbps of the maximum throughput the line is capable of supporting in the current noise
environment. The user can be assured of the highest data throughput possible.
RBOC (Regional Bell Operating Company)
one of the seven U.S. Telephone companies that resulted from the break up of AT&T.
RFC1483 - Ethernet over ATM