Download RAD Data comm Optimux-106 Specifications
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Glossary Address A coded representation of the origin or destination of data. Agent In SNMP, this refers to the managed system. ANSI American National Standards Institute. Attenuation Signal power loss through equipment, lines or other transmission devices. Measured in decibels. Balanced A transmission line in which voltages on the two conductors are equal in magnitude, but opposite in polarity, with respect to ground. Balanced Line A circuit in which neither side of the line is grounded. This minimizes crosstalk or noise pickup between pairs in the same cable. Baud Unit of signaling speed equivalent to the number of discrete conditions or events per second. If each signal event represents only one bit condition, baud rate equals bps (bits per second). Bit The smallest unit of information in a binary system. Represents either a one or zero (“1” or “0”). Bridge A device interconnecting local area networks at the OSI data link layer, filtering and forwarding frames according to media access control (MAC) addresses. Buffer A storage device. Commonly used to compensate for differences in data rates or event timing when transmitting from one device to another. Also used to remove jitter. Byte A group of bits (normally 8 bits in length). Cell The 53-byte basic information unit within an ATM network. The user traffic is segmented into cells at the source and reassembled at the destination. An ATM cell consists of a 5-byte ATM header and a 48byte ATM payload, which contains the user data. Channel A path for electrical transmission between two or more points. Also called a link, line, circuit or facility. Clock A term for the source(s) of timing signals used in synchronous transmission. Data Information represented in digital form, including voice, text, facsimile and video. dBm A measure of power in communications: the decibel in reference to one milliwatt (0 dBm = 1 milliwatt and -30 dBm = .001 milliwatt). Diagnostics The detection and isolation of a malfunction or mistake in a communications device, network or system.