Calrec Hydra2, Installation Manual

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36 HYDRA2
Installation Manual
Connection Information
Cleaningfiberopticcablesand
connectors
There are multiple ways to clean fiber-
optic cables and connectors. Included
below are some helpful tips to properly
clean fiber optic cables.
• Do not allow the end of the fiber optic
cable to make contact with any surface
including fingers.
• Do not excessively bend the fiber
cable. Bending the cable may cause
internal breaks along the fiber resulting
in poor performance or instability.
• Optics and optic coatings are easily
chipped and/or scratched. Use of
finger cots or powder free surgical
gloves while handling fiber optic cables
will help ensure cleanliness.
• Only fresh (dry) spectroscopic grade
Isopropyl Alcohol should be used as a
cleaning solvent.
• Ensure that the module power is
off and that other light sources are
disabled.
Cleaningprocedure
1. Blow the fiber surface with a stream of
Clean Dry Air, this will dislodge larger
loose particles.
2. Place 1-3 drops of spectroscopic grade
Isopropyl Alcohol in the centre of a lens
tissue.
3. Hold the fiber by the connector or
cable, place the wet portion of the lens
tissue on the optical surface and slowly
drag it across.
4. Examine the surface of the fiber end
under high intensity light using a direct
magnifying inspection microscope
or an indirect video inspection tool if
available. If streaks or contaminants
still remain, repeat the process using a
fresh lens tissue.
5. Immediately install a protective cover
over the end of the cable to avoid re-
contamination or insert the fiber back
into the previously cleaned receptacle
for immediate use.
Additionalnotes
Do not tip the can of Clean Dry Air whilst
aerosol spraying as liquid may be released
contaminating the surface of the fiber.
Do not use dry lens paper as dry lens
paper is extremely abrasive.
Do not use Acetone as a cleaning solvent
on the fiber optical surfaces.
To ensure the purity of the Isopropyl
Alcohol, do not insert the lens tissue,
swabs, etc into the liquid, instead, drip the
liquid on to the material.
Cleaningopticaltransceivers
The best way to clean a transceiver port
is to remove particles using a stream of
Clean Dry Air.
Included below are some helpful tips to
properly clean fiber optic modules.
• Always handle optical SFP modules in
an ESD safe manner using the proper
safety precautions.
• Ensure that the module power is off
and handle the modules with care.
• Always use Clean Dry Air or an
approved canned compressed air
supply.
• Always hold the can of compressed air
upright. Tipping may release liquids into
the air stream.
• Do not touch the inner surfaces of the
module including the Optical Sub-
Assemblies (OSA), or insert any foreign
objects into the ports.
• Use of finger cots or powder free
surgical gloves are not required but
may be used for cleanliness.
Cleaningprocedure
1. With the clean dry air, blow the inner
barrel of the Transmitter and Receiver
Optical Sub-Assemblies (OSA). This
will dislodge loose particles.
2. Examine the surface of the OSA lens
under high intensity light using the
inspection microscope. If contaminants
still remain, repeat the process.
Following these guidelines should
provide a successful installation and
ensure optimum reliability and system
performance.
For further information or advice please
feel free to contact Calrec.