C•CURE 800/8000 Monitoring Station Guide - Tyco Security Products

GlossaryEntrance DelayTriggerUsed to configure inputs on an iSTAR intrusion zone. If the Entrance DelayTrigger is selected, the input will trigger an entrance delay when it is asserted.This might be used for a key operated door into an iSTAR intrusion zone.Inputs that are configured to trigger an entrance delay must also be shuntedduring the entrance delay.EthernetThe most popular type of local area network, sending communicationsthrough signals carried by a coaxial cable fiber-optic cable, or by twisted pairwiring. Ethernet uses a bus or star topology and relies on the form of accessknown as Carrier Sense Multiple Access with Collision Detection (CSMA/CD) to regulate communication line traffic. Each computer checks to see ifanother computer is transmitting and waits its turn to transmit. If twocomputers accidentally transmit at the same time and their messages collide,they wait and send again in turn. Data is transmitted in variable lengthframes containing delivery and control information and up to 1,500 bytes ofdata. The Ethernet standard provides for base band transmission at 10megabits (10 million bits) per second and is available in various forms,including those known as Thin Ethernet, Thick Ethernet, 10Base2, 10Base5,10Base-F, and 10Base-T. The IEEE standard dubbed 802.3z, or GigabitEthernet, operates at 10 times 100 Mbps speed. Software protocols used byEthernet systems vary but include Novell Netware and TCP/IP. The GeneralController Modules support communication by means of the Ethernet, usingTCP/IP.escortA cardholder with a Person Type of Escort. This cardholder security clearanceenables an employee to act as an escort for one or more individuals or for agroup of individuals.escorted accessA feature allowing access to visitors when accompanied by a cardholderacting as an escort. The escort is assigned a cardholder Person Type of Escort;those who are allowed access with the escort are assigned a cardholderPerson Type of Escorted Visitor. Escorted visitors gain access only when withan escort.escorted timerAfter a visitor presents her card to a reader, a time out period activates duringwhich the next cardholder must present his card to the reader before a timeoutoccurs and the visitor is not granted access.C•CURE 800/8000 Monitoring Station User GuideGlossary–13