3. Commissioning
MF0150A4A.doc
Manual for ION-M7P/17EHP/19P
Page 31
Before connecting the fiber cables, follow the procedure below to ensure optimized
performance. It is important for these procedures to be carried out with care:
Remove fiber-optic protective caps.
Do not bend the fiber-optic cable in a tight radius (<4 cm) as this may cause
cable damage and interrupt transmission.
Using high-grade alcohol and lint-free cotton cleaning swabs, clean the end of
the fiber-optic cable that will be inserted in the optical connectors on the donor
interface box. Use a fiber end-face inspection tool to scan both, the class fiber
and its surrounding area.
Check for dirt on the cladding, chips/pits, dirt on the ferrule, and scratches.
Connect the fiber-optic cables by inserting the cable end into the laser
receptacle and aligning the key (on the cable end) with the keyed slot.
Do not use any index-matching gels or fluids of any kind in these connectors.
Gels are intended for laboratory use and attract dirt in the field.
Note:
Care should be taken when connecting and disconnecting fiber-
optic cables - use the connector housing to plug or unplug a fiber.
Scratches and dust significantly affect system performance and
may permanently damage the connector. Always use protective
caps on fiber-optic connectors not in use.
Cleaning Procedure for Fiber-Optical Components:
Caution:
Laser radiation. Risk of eye injury in operation. Do not stare into the
beam; do not view it directly or with optical instruments.
Any impurity in the fiber connection results in additional optical transmission loss
which could cause whole system failure. It is thus recommended that every fiber
connector be inspected and cleaned prior to mating.
When you clean fiber components, always complete the following steps carefully:
1. Turn off the ION system (laser sources) before you inspect fiber connectors.
2. Check the connectors or adapters with a fiberscope before cleaning.
3. If the connector is dirty, clean it with a lint-free wipe (dry cleaning).
4. Inspect the connector.
5. If the connector is still dirty, repeat the dry cleaning technique.
6. Inspect the connector.
7. If the connector is still dirty, clean it with 99% isopropyl alcohol (wet cleaning)
followed immediately with a dry clean in order to ensure no residue is left on
the end face.
8. Repeat steps 5 through 7 until end face is clean.
Note: For a more detailed description, please refer to:
http://www.cisco.com/en/US/tech/tk482/tk876/technologies_white_paper09186
a0080254eba.shtml
