ADTRAN IPR-S1000 manual Iana

Frame relay

Ahigh-speed packet-switching protocol used in wide area networks (WANs). Frame Relay provides for a granular service up to DS1 rates of 1.544 Mbps and is suited for data and image transfer.

Frequency

The number of times that an alternating current goes through its complete cycle in one second of time. One cycle per second is also referred to as “one hertz; 1000 cycles per second, one kilohertz; 1,000,000 cycles per” second, one megahertz, and 1,000,000,000 cycles per second one gigahertz.

Gateway

A computer that performs protocol conversion between different types of networks or applications.

Hardware

Machinery and equipment (CPU, disks, tapes, modem, cables, etc.).

IANA

Internet Assigned Numbers Authority: central coordinator for the assignment of unique parameter values for Internet protocols.

IEC

International Electrotechnical Commission: an organization that sets international electrical and electronics standards founded in 1906 and headquartered in Geneva.

IGMP

Internet Group Management Protocol: protocol used by the IP host to report its multicast group memberships to an adjacent multicast router (see RFC 2236).

Init string

Initialization String: a character string made up of control codes and commands that is sent to a printer of modem for setup and initialization.

IP

An identifier for a computer or device on a TCP/IP network. Networks using the TCP/ IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods.

Each number can be zero to 255. For example, 1.160.10.240 could be an IP address. Within an isolated network, you can assign IP addresses at random as long as each one is unique. However, connecting a private network to the Internet requires using registered IP addresses (called Internet addresses) to avoid duplicates (see RFC 791).

IRD

Integrated Receiver Decoder. Set-top box used for the reception and descrambling of signals. In the case of digital reception, the decoder is integrated with the satellite receiver.

ISDN

Integrated Services Digital Network: an international telecommunications standard for transmission over digital lines running at 64 kbps. ISDN uses 64-kbps circuit-switched channels, called B channels, or bearer channels, and a separate D channel, or delta,