求电子通信类的英文参考文献五篇左右 要求标明 标题 作者 书或者杂志 最好有年限

发布网友 发布时间：2022-04-28 13:28

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热心网友 时间：2023-10-10 11:26

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 devices
Operation
The SEC 2500 Hand Held Programmer transmits and receives infrared light from the front of the housing. The infrared light is used to establish non-intrusive communication with any SEC 2000 that is equipped with a display mole. When communicating with the SEC 2000, the SEC 2500 must be pointed directly at the display mole of the SEC 2000 which can be up to 15 feet away.
The Hand Held Programmer can communicate with any SEC 2000 gas detector on the same RS-485 network once infrared communication is established. Data exchange, using the infrared link, occurs at a rate of 300 baud.
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 devices.
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 Programmer. The SEC 2500 Hand Held Programmer is certified for use in hazardous areas.
The SEC 4100 System Monitor is a multi-channel microprocessor based controller designed to monitor the gas and fire detection network.
Each SEC 4100 System Monitor provides a digital display of each device and alarm level present at each detector. Initiates alarms when any device senses a dangerous condition.
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 loop. The SEC 4100 will transfer communication between the LAN X and LAN Y highway when a communication fault is detected.
The SEC 4100 System Monitor can be used with SEC DAIM Moles to add other types of devices to the network. See SEC 4853 DAIM data sheet for further information.
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 package.

Other Procts Available:
Infrared Hydrocarbon Gas Detectors
Explosion Proof Gas Detectors
Non-Explosion Proof Gas Detectors
4-20 mA Gas Detectors
Data Logging/Graphics Software Packages
Optical UV/IR Flame Detectors
Fire Suppression Aerosol Generators
Portable Automatic Fire Fighting Systems
Halotron Systems
Twin Agent Units
Dry Chemical Mobile and Stationary Units

热心网友 时间：2023-10-10 11:26

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 devices
Operation
The SEC 2500 Hand Held Programmer transmits and receives infrared light from the front of the housing. The infrared light is used to establish non-intrusive communication with any SEC 2000 that is equipped with a display mole. When communicating with the SEC 2000, the SEC 2500 must be pointed directly at the display mole of the SEC 2000 which can be up to 15 feet away.
The Hand Held Programmer can communicate with any SEC 2000 gas detector on the same RS-485 network once infrared communication is established. Data exchange, using the infrared link, occurs at a rate of 300 baud.
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 devices.
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 Programmer. The SEC 2500 Hand Held Programmer is certified for use in hazardous areas.
The SEC 4100 System Monitor is a multi-channel microprocessor based controller designed to monitor the gas and fire detection network.
Each SEC 4100 System Monitor provides a digital display of each device and alarm level present at each detector. Initiates alarms when any device senses a dangerous condition.
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 loop. The SEC 4100 will transfer communication between the LAN X and LAN Y highway when a communication fault is detected.
The SEC 4100 System Monitor can be used with SEC DAIM Moles to add other types of devices to the network. See SEC 4853 DAIM data sheet for further information.
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 package.

Other Procts Available:
Infrared Hydrocarbon Gas Detectors
Explosion Proof Gas Detectors
Non-Explosion Proof Gas Detectors
4-20 mA Gas Detectors
Data Logging/Graphics Software Packages
Optical UV/IR Flame Detectors
Fire Suppression Aerosol Generators
Portable Automatic Fire Fighting Systems
Halotron Systems
Twin Agent Units
Dry Chemical Mobile and Stationary Units