Dell SC4020 - Page 71

NOTE: When you are not using a transceiver module or fiber-optic cable, always install protective
covers to prevent contamination.
Cleaning SFP+ Transceiver Modules
Dell recommends using a can of compressed air to clean the fiber-optic ports of SFP+ transceiver
modules.
Prerequisites
• Handle the SFP+ transceiver module in an ESD safe environment using the proper safety precautions.
• Make sure that the can of compressed air is approved for cleaning fiber optics.
• Make sure that the can of compressed air has a straw inserted into the nozzle.
Steps
1. Spray the can of compressed air for 3–5 seconds to make sure that any liquid propellant is expelled
from the straw.
2. Align a fiber-optic port of the transceiver module with the straw on the can of compressed air.
Hold the transceiver module near the end of the straw, but do not touch the inner surfaces of the
module.
3. Hold the can of compressed air upright and level with the transceiver module.
CAUTION: Tipping the can of compressed air may release liquids in the air stream.
4. Use the can of compressed air to blow out particles from the inside of the transceiver module.
5. Examine the optical surface of the connector using high intensity light and a magnifying tool.
If contaminants still exist, repeat the cleaning process.
6. Immediately install the protective dust cover into the transceiver module to avoid recontamination.
Keep the protective cover in the transceiver module until you are ready to connect it to a fiber optic
cable.
Cleaning Fiber-Optic Cable Connectors
Dell recommends using a can of compressed air, methanol or isopropyl alcohol, and a lens tissue to
clean fiber-optic cable connectors.
Prerequisites
• Do not allow the end of the fiber-optic cable to contact any surface, including your fingers.
• Make sure that the can of compressed air is approved for cleaning fiber optics
• Make sure that the can of compressed air has a straw inserted into the nozzle.
• Only use fresh (dry) spectroscopic grade methanol or isopropyl alcohol as a cleaning solvent.
• Only use lens tissues with long fibers and a low ash content type that has no chemical additives.
Steps
1. Spray the can of compressed air for 3–5 seconds to make sure that any liquid propellant is expelled
from the straw.
2. Hold the can of compressed air upright and level with the fiber-optic cable connector.
CAUTION: Tipping the can of compressed air may release liquids in the air stream.
3. Use the can of compressed air to blow particles off the surface of the fiber-optic cable connector.
4. Place 2–3 drops of the methanol or isopropyl alcohol on a lens tissue.
5. Place the wet portion of the lens tissue on the optical surface of the fiber-optic cable connector and
slowly drag it across.
6. Examine the optical surface of the fiber-optic cable connector using high intensity light and a
magnifying tool.
Connect the Front-End Cabling
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