EXFO FOA Compatibility - Manual

P/N: 1057456 November 2009 1/3
N
OTICE
This information applies only to the
IQS-3250, IQS-3250B, IQS-9403 and OHS-1700 user
guides.
Improvement for FOAs on EXFO Modules
EXFO has made improvements that will increase the life of the FOA
receptacles for the following instruments:
³
IQS-3250
³ IQS-3250B
³
IQS-9403
³
OHS-1700-UH
The improvement features a longer thread than the one on the older
models. The wear of the threads is decreased significantly as the holding
pressure is now distributed over five threads rather than two.
Note: Even if the number of threads slightly changes the distance from the end
ferrule, it does not have an impact on measurement uncertainty with an
integrating cavity.
Modules with the improvement are identified on their faceplates by the
letters "LT" (Long thread). In the case of the OHS-1700 Optical Head, you
will also notice a small dot next to the port.
IQS-3250
IQS-3250B
IQS-9403 OHS-1700-UH