In case of the receive optical power of a Huawei OSN8800 TDM board is to a fault high or low, bit errors occur on the instrumentation. once this happens, the services square measure affected and also the parts of the instrumentation is broken. This section describes a way to take a look at the particular received optical power for AN interface board. This take a look at is performed to confirm the particular received optical power for every port is correct.
Prerequisites
- The take a look at of fiber connections should be complete. make sure that the optical fibers square measure connected properly.
- The take a look at results of the mean launched optical power at the optical port should be traditional.
- The fibers for the alternative station should be routed to the ODF of the native station. additionally, the alternative station should be commissioned and high-powered on.
Tools, Equipment, and Materials
Optical electric meter, fiber connectors
Procedure
1- At the native station, take away the fiber jumper from the IN port of the optical interface board. Connect the fiber jumper to the optical electric meter through the fiber connection
2- Identify the amount of the optical port by relating the section that describes the board bar codes within the Hardware Description. question the specifications of the corresponding optical port by relating the Hardware Description. By doing this, you'll get the operating wavelength for the optical port to be tested.
3- Set the take a look at wavelength for the optical electric meter supported the operating wavelength of the optical port.
4- Check the worth displayed on the optical electric meter. Record the worth once it becomes stable. The recorded price is that the price for the particular received optical power.
5- Check whether or not the worth of the particular received optical power is correct by relating the optical power vary, that is per the Hardware Description.
NOTE:
The actual received optical power ought to meet the subsequent requirement:
Minimum sensibility + three dB dB Actual received optical power (measured value) ≤ Minimum overload purpose – five dB
6- If the received optical power isn't correct, do as follows:
+ If the received optical power is to a fault low, check whether or not the fiber connection, ODF fiber adapter, and optical electrical device square measure traditional, or replace the prevailing mounted optical electrical device in step with the measured optical power. For data regarding cleanup the fiber connection, see “Inspecting and cleanup the fiber Connectors” within the Supporting Tasks.
+ If the received optical power is to a fault high, check whether or not the optical electrical device is traditional or add AN electrical device on the ODF. For data regarding the values of the optical attenuators, see the Hardware Description and the outline regarding the particular received optical power in Step five.
7- Repeat Steps one through vi till the measured price is traditional.
8- When the measured price is traditional, reconnect the removed fiber to the optical port beneath take a look at.
