Manual of Prevail
Rev1.1 190510 www.prevail-catv.com
No. 27-1, Youyi Road, Guali Town, Xiaoshan District, Hangzhou City, Zhejiang Province.
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Click
Set Paraments
to enter
Set Paraments
interface as follows:
The Item and Items columns list the parameters that can be changed, the Current column lists the present
parameter values, the New column can select or type the new parameter values, and the Update column
can update the parameters.
The steps to change the parameters: find the item in the Item column, select the new parameter values in
the New column, and click the corresponding Update button to update the parameters.
The change steps in the Items are the same, but finally need to click the Restart Device button to take
effect.
6. Maintenance and Troubleshooting
6.1 Cleaning Fiber Optic Connectors
Dirty optical connectors are the leading source of poor performance in a broadband optical fiber network.
Dirty optical connectors lead to optical signal loss and reflections, which in turn can seriously degrade
signal-to-noise (SNR) performance and, in some cases, distortion performance. We recommend that you
clean all mating fiber connectors before connecting them to an optical transmitter.
In addition, if you suspect that the optical connector of WT-1550-EM20 may have been exposed to
contamination (by a dirty fiber cable connector, for example), you should properly clean the WT-1550-EM20
optical connector before connecting the optical fiber.
6.1.1 Cleaning Patch Cord or Pigtail Fiber Optical Connectors
To clean optical connectors, we recommend using a fiber optic connector cleaning cartridge (such as NTT
Cletop). If a cleaning cartridge is not available, follow these steps.
To clean the optical connector of a patch cord or pigtail:
1.
Fold a piece of unused dry lens cleaning paper twice, for a four-ply thickness.
2.
Use a drop of high-grade isopropyl alcohol to wet part of the paper.
3.
Lay the connector on the lens cleaning paper with the tip touching the paper.
4.
In one continuous motion, pull the connector from the wet part of the paper to the dry part.
