APPLICATIONS:
The HU-125 Bare Fiber Alignment Module ( also known as Multipurpose Pigtail) is an excellent tool
for connecting to bare fibers for the measurement of the characteristics of optical fibers • It is
designed for singlemode ( SM) or graded index ( GI) bare fiber and can be connected easily and
quickly - in just a few seconds • Importantly, its typical insertion loss is less than 0.3dB •
Under the premise ‘ Time is Money’ , the HU-125 is a great cost-saver - an outstanding feature of the
device is that it provides rapid as well as accurate measurements • Applications include connecting
bare fibers to O.T.D.R. equipment, chromatic dispersion test sets, sources, detectors, transmitters,
receivers, power meters, and fiber phones ( for example for communicating during the installation of fiber cable) • The HU-125 may be used in laboratories, factories, and outdoor installations •

SPECIFICATIONS:
Fiber Diameter: 125 + / -2 ¼ m
Insertion Loss: typically 10, 000
Reflection Loss: typically > 50dB
Operating Temperature Range: -10° C to 50° C
Bare Fiber Ends do not need special cutting tools – the fiber can be broken by hand or cut with
scissors, although specialist fiber cutters give lowest insertion losses ( refer to picture for examples)
HU-125-SM with FC/ PC is the standard singlemode unit ( 9/ 125 ¼ m fiber) and has approx. 1.4 meters
of cable. Singlemode connector options include FC and SC. PC and APC types are available
HU-125-MM ( the multimode unit) is available with 62.5/ 125 ¼ m or 50/ 125 ¼ m GI fiber and has approx.
1.4 meters of cable. Multimode connector options include FC and ST
A cable length of approx. 3 meters is optionally available for all singlemode and multimode units