"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

ACCESS BUS. Is a low speed 4-wire serial bus once used on Personal Computers. Access.Bus uses the I2C [IIC] bus as the electrical hardware interface. The Access bus has a maximum speed is 100kbps over a maximum cable distance of 10 meters, however a repeater may be used. The 4 wires of the interface bus are power/ground, Send Data [SDA] and Serial Clock [SCL]. Refer to the following [external] page for a description of the Access Bus interface page.

ADB. The Apple Desktop Bus [ADB] was a serial bus used by Apple computer to drive the mouse and keyboard interfaces. The cable consisted of one data line [ADB], a power line [+5v] and a ground line. The maximum data rate was 125kbps, actual bus speed was much lower. The ADB bus was rendered obsolete by the introduction of the Firewire interface on Apple Computer products.

Address field: The portion of a message that contains the source-user address and the destination-user addresses. Note: In a communications network, the address field is usually contained within the message header portion of the message. A message usually consists of the message header, the user data, and a trailer.

AGP BUS. The Accelerated Graphics Port bus was widely used as a video expansion bus on personal computers from 1997 to 2006. The AGP electrical standard was derived from the Parallel PCI bus. The fastest speed; AGP 8x used a 533MHz clock with 32 bytes/clock transfers, with a Bandwidth of 2.1GBps. The AGP Bus was rendered obsolete by the introduction of the PCI Express interface [PCIe].

ANSI. Acronym for American National Standards Institute.

ATTENUATION. The ability of a filter circuit to reduce the amplitude of unwanted frequencies to a level below that of the desired output frequency. 24AWG Attenuation chart