8 Acronyms, Definitions, and Terms

ACLI — Acme Command Line Interface is the command line interface used by Acme Packet to configure, maintain, and monitor Acme Packet SBCs and other Acme Packet products.

AC — Alternating Current refers to the 120-volt electricity delivered by power utilities to three-pin power outlets. This type of power is called “alternating current” because the polarity of the current alternates between plus and minus, 60 times per second.

AWG — American Wire Gauge is a United States standard set of non-ferrous wire conductor sizes. The gauge means the diameter.

DC — Direct Current refers to the flow of electrons in one direction within an electrical conductor, such as a wire.

ESD — Electrostatic Discharge is the rapid discharge of static electricity from one conductor with an electrical charge to another of a different electrical charge.

CE — European Compliance

EN — European Norm

FG — Frame ground

Flash memory — Flash memory is a solid-state, non-volatile, rewritable memory that functions like a combination of RAM and a hard disk drive.

FQME — Flow Quality Measurement Engine is responsible for monitoring, measuring, and maintaining statistics (e.g., latency, jitter, flow stoppage, flow creation, etc.) on a flow-by-flow basis.

1GbE — Gigabit Ethernet is an Ethernet type that supports data transfer rates of 1 gigabit per second.

10GbE — 10GbE is an Ethernet type that supports data transfer rates of 10 gigabits per second.

IEEE — Institute of Electrical and Electronics Engineers is an organization composed of engineers, scientists, and students. The IEEE is best known for developing standards for the computer and electronics industry.

IEC — International Electrotechnical Commission

IP — Internet Protocol is the method by which data is sent from one computer to another on the Internet.

LED — Light Emitting Diode is an electronic device that lights up when electricity is passed through it.

LAN — Local Area Network is a group of computers and associated devices that share a common communications line within a small geographic area.

LOS — Loss of Signal occurs when the signal level falls below an acceptable level. LOS is a physical layer error and typically results in an alarm.

NIC — Network Interface Card is an expansion board you insert into a computer so the computer can be connected to a network.

NIU — The NIU provides network connectivity for management, signaling, and media traffic to and from the Acme Packet 4600 System.

NVRAM — Non-volatile Random Access Memory is a type of memory that retains its contents when power is turned off.

Optical Transceiver — The fiber connection to the Acme Packet 4600 System plugs into an optical transceiver. Through this connection, light energy is converted into electrical energy.

PCMCIA — Personal Computer Memory Card International Association is an organization consisting of approximately 500 companies that has developed a standard for small, credit-card sized devices (PC cards). This standard is designed for attaching input/output devices such as network adaptors, fax/modems, or hard drives to notebook computers.

Physical Interface Card — The physical interface card is synonymous with the network interface cards on the Acme Packet 4600 System.

PROM — Programmable Read-only Memory is a memory chip on which data can only be written once. A PROM is non-volatile; it is a memory chip on which data can be written only once.

QoS — Quality of Service is a networking term that refers to the capability of a network to provide better service to selected network traffic over various technologies.

RAM — Random Access Memory is a type of computer memory that can be accessed randomly. RAM is the same as main memory.

RS-232 — Recommended Standard 232 is a standard interface approved by the Electronic Industries Association for connecting serial devices.

RJ45 — Registered Jack 45 is an eight-wire connector commonly used to connect computers onto a LAN.

SNMP — Simple Network Management Protocol is a set of protocols used for managing complex networks and network devices.

SDRAM — Synchronous Dynamic Random Access Memory is a type of DRAM that can run at much higher clock speeds than conventional memory.

Telnet — Telnet is a standard terminal emulation program that allows remote login and connection to systems/servers on a network. Telnet uses a single TCP/IP network connection to provide this remote login, control, and communication functionality.

TCP — Transmission Control Protocol provides a reliable stream delivery and virtual connection service to applications through the use of sequenced acknowledgment with the retransmission of packets when necessary.

UPS — Uninterruptible Power Supply is a power supply that can run off of a backup battery when primary power is lost.

UDP — User Datagram Protocol provides a simple, but unreliable message service for transaction-oriented services. Each UDP header carries both a source port identifier and a destination port identifier, allowing high-level protocols to target specific applications and services among hosts.

VFD — Vacuum Fluorescent Display is used on the graphic display window of the Acme Packet 4600 System chassis’s front control panel.

VLAN — Virtual Local Area Network refers to a network of computers are connected to a single physical segment of a wire but behave as if they are connected to the physically diverse LANs.

VAC — Volts Alternating Current

VDC — Volts Direct Current

VCCI — Voluntary Control Council for Information Technology Equipment (Japan)

WAN—Wide Area Network is a computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more LANs.