duty cycle

1. The proportion of time that a system, device, or component on intermittent duty is operating, rather than remaining idle. The duty cycle includes the time starting, running, stopping, and idling and generally is expressed as a percentage or fraction.A compressor, for example, that operates for 1 minute and then shuts off for 99 minutes, is said to have a duty cycle of 1⁄100, or 1 percent. 2. In pulse systems, such as digital fiber optic transmission systems (FOTS) or baseband digital electrical transmission systems, the ratio of the sum of all pulse durations to the total period, during a specified period of continuous operation, with the pulse duration, including the rise to peak power and the fall to zero power. See also baseband, digital, FOTS, and pulse.

• 128-QAM
• 13
• 1394
• 1/3 FEC
• 14
• 15
• 1.5-way paging
• 16
• 16-QAM
• 16-QPSK
• 18
• 1:8 Splitter
• 1A
• 1A1
• 1A2
• 1Base5 (1 Mbps; Baseband; 500 meters)
• 1B+D
• 1. Domain Name System. The naming convention that divides the Internet into logical domains identified in Internet Protocol version 4 (IPv4) as a 32-bit portion of the total address.The standard convention is user@organization.domain, where user is the name of the end user, organization is the name of the enterprise or other organization owning or sponsoring the address, and domain is the type of entity owning or sponsoring the address.The administration of the DNS is the responsibility of Internet Corporation for Assigned Names and Numbers (ICANN). See also domain, ICANN, Internet, and IPv4. 2.
• 1. In storage, irrelevant material, usually zero (0) bits, added to a data block in order to fill it to a minimum size, to force certain fields of control data or user data into certain positions or sizes, or to prevent the user data from duplicating a bit pattern that has a specific control meaning. See also block. 2.
• 1 cps, 1 Hz
• 1+ Dialing
• 1G (1st Generation)
• 1G (1st Generation)
• 1-persistent carrier sense multiple access (1-Persistent CSMA)
• 1-Persistent CSMA (1-Persistent Carrier Sense Multiple Access)