Glossary - Arris SURFboard TM822R User Manual

Glossary

A
Amp-Hour
A measure of battery capacity. For
example, a 1.0Ah battery can nominally
supply one Ampere of current for one
hour.
C
Category 5e (Cat5e)
A high-quality type of cable, used for
gigabit Ethernet (1000BaseT) connections.
When purchasing Ethernet cables, always
look for Category 5e cable.
Coaxial cable (coax)
A thin wire, used to connect your television
and Telephony Modem to the cable TV
system. You can buy coax from any
electronics retailer and many discount
stores.
CPE
Customer Premise Equipment. This is the
equipment that is plugged in to the
Telephony Modem; typically a computer or
hub.
Cross-over
An Ethernet cable used to connect two
hubs (or a hub and a cable modem)
together. Also, some Ethernet hubs may
have built-in cross-over on one or more
ports (which eliminates the need for a
cross-over cable).
STANDARD PN 365-095-31188 x.1
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D
DHCP
Dynamic Host Configuration Protocol. An
IP protocol used to provide an IP address
and location of services (such as DNS and
TFTP) needed by a device connecting to
the network. DHCP allows the cable
company to configure your computer's
networking software for you.
DNS
Domain Name Service (Server). An IP
service that associates a domain name
(such as www.example.com) with an IP
address.
DOCSIS
Data Over Cable System Interface
Specification. The interoperability
standards used for data communications
equipment on an HFC network.
Downstream
In an HFC network, the direction from the
head-end to the subscriber. Some older
cable documentation may refer to this as
the forward path.
E
EMTA
Embedded Multimedia Terminal Adapter.
An MTA device that is integrated with a
cable modem.
Ethernet
A standard method of connecting two or
more computers into a Local Area Network
(LAN).
TM822R DOCSIS® 3.0 Telephony Modem For Customers User Guide
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