lternate ark nversion; the line-coding format in T1 transmission systems where successive 1s (marks) are alternately sent with opposite polarity.

The binary modulation code used by telephone companies for data and digital voice transmission. AMI uses RZ coding in an alternate bipolar scheme, with logical zeros corresponding to 0 V, and logical ones alternating between + 3 V and - 3 V. Self synchronisation is possible with this approach, but the number of continuous zeros must be limited.

Line format that inverts a the polarity of a digital signal into alternate 1s bits.

Alternate Mark Inversion. A line code used for T-1 and E-1 lines that has a 12.5% ones density minimum, and the one conditions of the signal alternate between positive and negative polarity.

Alternate Mark Inversion. DS1 line code that does not perform zero code suppression and is therefore transparent to an all-zeros byte.

See Alternate Mark Inversion.

Alternate Mark Inversion. A digital signaling method in which the signal carrying the binary value alternates between positive and negative polarities; zero and one values are represented by the signal amplitude at either polarity, while no-value "spaces"are at zero amplitude. Also called Bipolar.

Alternate Mark Inversion. A line encoding scheme for transmitting data bits over T1 transmission systems.

Alternate Mark Inversion. Line-code format used on T1 circuits that transmits ones by alternate positive and negative pulses. Zeroes are represented by 01 during each bit cell and ones are represented by 11 or 00, alternately, during each bit cell. AMI requires that the sending device maintain ones density. Ones density is not maintained independently of the data stream. Sometimes called binary-coded alternate mark inversion.

Alternative Mortgage Instrument. A non-traditional mortgage; a mortgage with terms varying from those of traditional mortgages in one or more ways. Among the AMIs in use today are

Alternate Mark Inversion. A line code used for T1 and E1 lines.

Alternate mark inversion. A line-coding format for T1 lines where successive marks alternate between positive and negative polarity. The marks are equal in amplitude. A space designates zero amplitude.

Alternate mark inve.

lternate ark nversion. A T1 line encoding standard. Less than ideal for videoconferencing applications.

alternate mark inversion. the line-coding format in transmission systems where successive ones (marks) are alternatively inverted (sent with polarity opposite that of the preceding mark)

A bipolar coding scheme in which successive ones (marks) must alternate in polarity.

Alternate Mark Inversion. A line coding technique used to accommodate the ones density requirements of El or T I lines.

Address mark inversion or alternate mark inversion (T1 lines). A signal-encoding scheme in which a "1" is represented alternately as positive and negative voltage. It does not use translation coding but can detect noise-induced errors at the hardware level.

Active Microwave Instrument, a part of ERS-1 and ERS-2 payload, incorporating image (SAR), wind (scatterometer), and wave (imagette) modes.

Active Microwave Instrument; planned for ERS­p;1.

Application Messenging Interface, IBM's high-level messenging interface (part of IBM's MQSeries); adopted by the Open Applications Group Inc. (AOGI) for the Open Applications Group Middleware API Specification (OAGMAS)

American Meat Institute. 1700 N. Moore St., Suite 1600 Arlington, VA 22209 (703) 841-2400 or P.O. Box 3556 Washington, DC 20007

American Medical International. Troubled internationalcompany owning many hospitals. Has mostly divested itself ofhealth-insurance programs that were financially unsuccessful.

Area median income.

American Methanol Institute

slang for American