关于通信的英文文献

Features • CSA/NRTL Approved • Used for non-intrusive configuration and calibration of SEC 2000 gas detectors• Calibrates, checks and correlates data from any SEC detector on the data highway• Bi-directional infrared communication when pointed at any SEC 2000 display board• Intrinsically safe menu driven device • Can communicate with SEC 1500, SEC 2000 and SEC DAIM devicesOperationThe SEC 2500 Hand Held Programmer transmits and receives infrared light from the front of the The infrared light is used to establish non-intrusive communication with any SEC 2000 that is equipped with a display When communicating with the SEC 2000, the SEC 2500 must be pointed directly at the display module of the SEC 2000 which can be up to 15 feet The Hand Held Programmer can communicate with any SEC 2000 gas detector on the same RS-485 network once infrared communication is Data exchange, using the infrared link, occurs at a rate of 300 The programmer has a socket at the bottom of the unit for connecting to a Data Communication Cable (P/N 147-1000C) The Data Communication Cable enables a hardwire communication connection to all SEC Once communication is established, the devices can be checked, calibrated and information can be correlated with a touch of the keypad located on the SEC 2500 Hand Held P The SEC 2500 Hand Held Programmer is certified for use in hazardous The SEC 4100 System Monitor is a multi-channel microprocessor based controller designed to monitor the gas and fire detection Each SEC 4100 System Monitor provides a digital display of each device and alarm level present at each Initiates alarms when any device senses a dangerous The SEC 4100 System Monitor has 2 sets of “Data A” and “Data B” terminals, labeled LAN X and LAN Y This allows the detectors to be connected in a compete The SEC 4100 will transfer communication between the LAN X and LAN Y highway when a communication fault is The SEC 4100 System Monitor can be used with SEC DAIM Modules to add other types of devices to the See SEC 4853 DAIM data sheet for further The SEC 4100 System Monitor can also be used in conjunction with the SEC 4850 Repeater, SEC 4851 Expansion Relay Controller, SEC 4852 High Density Display and SEC Supervision Plus software Other Products Available:Infrared Hydrocarbon Gas DetectorsExplosion Proof Gas DetectorsNon-Explosion Proof Gas Detectors4-20 mA Gas DetectorsData Logging/Graphics Software PackagesOptical UV/IR Flame DetectorsFire Suppression Aerosol GeneratorsPortable Automatic Fire Fighting SystemsHalotron SystemsTwin Agent UnitsDry Chemical Mobile and Stationary Units