490NRP95400 Fiber optic repeater

Description

490NRP95400 Each module uses a real-time clock to ensure accurate time recording. Use features between modules
Special time averaging function to ensure clock synchronization from module to module. Feature and function acceleration
Degree detection Optionally, the ProTech-GII can also be configured to protect the turbine from high acceleration
The impact of degree events. The derivative of the speed signal is used to detect the turbine acceleration and emit the relevant
Trip command.
1. Single chip detects the speed sensor input of each module using a special MPU open circuit detection
Circuits to verify that the MPU is properly connected before the turbine is run, and special loss is used
Speed check logic to verify MPU function during turbine operation.
2. Automatic overspeed test program optionally, can be configured to periodically perform overspeed for each module
Test, and then record and report the test results. Through this test program, each module is used
The internal frequency generator completes its test sequence to simulate overspeed conditions.
3. Sulfur pollution resistance ProTech-GII uses a special coating material, the material in
International Standard IEC 721-3-3 1994- Environmental Grade 3C2 in the level of classification shown.
Excellent long-term protection against H2S and SO2 gases. .

490NRP95400

490NRP95400 fiber optic repeater is a device that compensates the loss of optical signal and eliminates the effect of signal distortion and noise in the long distance fiber optic communication system. It is a kind of fiber optic communication equipment, and its role is to extend the communication distance.
Optical fiber repeater is usually composed of optical receiver, timing decision circuit and optical transmitter, remote power supply receiving, remote control, telemetry and other auxiliary equipment. The optical repeater converts the weak light signal received from the optical fiber into an electrical signal by the optical detector, and after regeneration or amplification, the light source is stimulated again, converted into a stronger light signal, and is sent to the optical fiber for continued transmission.

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