1550nm Internal Modulation Optical Transmitter
Overview
The internal RF driving amplifier and controlling circuit of this machine can ensure the best C/N. The perfect and stable circuit of optic power output and controlling circuit of thermoelectric refrigeration device of laser module assure the user the best quality and stable working for a long time.
The internal micro-processor software has many functions such as laser monitoring, number display, trouble alarm and on-line management. Once the working parameter of the laser is out of the fixed range, there will be a red light glistening to alarm.
The RS-232 standard connector makes it is possible to manage on line and monitor in another place.
The machine adopts 19"standard shelf and it can work with the voltage from 110V to 254V.
II. Display Board Operation Guide：
Output Power: display the output power of this machine(mW).
Laser Temp: The laser works between 20℃ and 30℃.If the temperature is out of this range, the red light will glow warm.
Bias Current: The bias current of the laser is the main working parameter of the laser. Only when the parameter is above 30mA, RF driving circuit can begin to work. The red light will shine to warn when the RF driving level comes out of the fixed value.
REFRG Current: showing the working current of heating or cooling, which can make sure the standard temperature is 25℃.
+ 5V test (Reads): showing internal actual Voltage of ±5V.
- 5V test (Reads): showing internal actual-5V.
+24V test (Reads): showing internal actual voltage of +24V.
III. Operating Guide:
- Please examine this machine, the shelf, and the power to see if the power supply is good.
- This machine adopts the switch power with high quality and high stability which makes it is suitable to work in voltage from 110V to 254 V.
- Please make sure the connector is clean before installation. Please clean the fiber connector with pure alcohol before connecting the fiber.
- After connecting the power, please turn on the power in the back of the board. The screen will show the basic information of this machine. After several seconds, the laser power will turn on automatically. If the machine is all right, the condition guide light (Laser) will turn from red to green. And the screen will show you the working condition of this machine at present.
- If all the above working condition is all right, then examine whether the RF input level can satisfy the request in the test report. If it is all right, please connect the RF input to the transmitter.
