Cables to Go DOCSIS Cable Modem manual Icmp, Isp, Led

DOCSIS 1.0/ 1.1 Equivalent Cable Modem

Headend

The aggregation point in a CATV plant where control equipment is located. The CMTS resides here, as does video broadcast and monitoring equipment.

HFC (Hybrid Fibre/Coax)

A cable system where the cables closest to the Headend are fiber technology, and the cables dropped into individual homes are coaxial. Between these two ends, the signal is converted from fiber to coaxial. The coaxial cable then runs through the branches of the network and is finally dropped into the home.

Hub

Electronic device that accepts data from a sending computer and delivers it to the appropriate destination. Many networks are shaped like a wheel with different computers attached at the ends of the wheel’s spokes; the hub is the center of the wheel

ICMP

Part of the TCP/IP protocol used for network diagnosis.

IEEE 802.3

IEEE is the Institute for Electrical and Electronic Engineers. 802.3 refers to the specifications of the Ethernet protocol.

ISP

Internet Service Provider. A commercial organization that provides access to the Internet for its subscribers

IP

Internet Protocol. IP is a standard that defines the format of packets of information sent over the Internet and the mechanism for routing each packet to its destination. IP is the network portion of TCP/IP, the most commonly used protocol suite for the Internet.

IP Address

A unique, 32-bit address assigned to every device in a network. An IP address is composed of a network address and a host address. Each network is assigned an address by a government agency, and each company administrator assigns an address to each host computer.

Latenacy/(Lag)

Excessive response time. Time between sending a request to a server (e.g. web page) and receiving the response.

LED

Light-Emitting Diode. A semiconductor device that emits light when voltage is applied between its terminals. LEDs are used on the cable modems as front panel lights.

MAC Address

The physical address of the Media Access Control device.

26