OMNIScanner User Guide
8 - 2
The Launch/Jumper Cable
The launch/jumper cables are 2 m fiber cables and need to be of good
quality and in excellent condition. Always clean and inspect the launch
cables before use.
Note:
The launch cable used to set
the reference value should be the
same type of fiber as the cables to
be tested and certified, 50/125,
62.5/125 or single-mode.
The fiber cables included with your OMNI
Fiber
kit are duplex launch cables.
One fiber has white connector boots and the other fiber has black boots.
These colors are consistently used for all graphics throughout this user
guide to avoid confusion.
Fibers can be marked with other color schemes or cable markings to
differentiate them. Pay close attention to the colors to avoid improper fiber
connections.
The Reference Methods
For testing of networks with different connector styles, please consult the
Microtest web site (http://www.microtest.com/support/techbulletins/).
It is very important that the transmitter (TX port) connections are not dis-
turbed after the reference value is established.
Note: When a connector is removed and then reattached, it is unlikely to go
back into the exact same position. As a result, measurements will change
when connections are made or broken.
OMNI
Fiber
measures two fibers of a duplex link in one Autotest operation.
Four reference values will be stored, two from OMNI
Scanner
to OMNI-
Remote
(TX - RX), the others from OMNI
Remote
to OMNI
Scanner
(TX -
RX).
2 m Launch Cable
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