Imagine communications Selenio 6800 SFS6803+OP+SFS+, Инструкция по установке и эксплуатации

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Chapter 2
Installation
24
1 Pull out the finger-release screws on the right and left side of the front panel of the frame,
and then open the front panel.
2 Grasp the extractor handle on the installed module, and then pull the module out of its slot.
Use the handle as a lever.
3 Close the front panel to ensure proper frame ventilation.
Back Module
Follow these steps to remove a back module from a frame:
1 Remove the front module, as described above.
2 Unscrew the top of the corresponding back module, and then tip it towards you.
3 Pull the bottom lip of the back module from its slot.
4 Reinstall a new or blank back plate in the empty slot to ensure proper frame ventilation.
5 Reinstall the front module.
Inspecting
and Cleaning
Fiber Optic
Connections
Small amounts of microscopic dust or other contaminants can seriously impair or disable a
fiber optic network. To ensure that your network operates reliably, you must carefully
inspect and clean each connection when installing OPTO
+
products.
Table 2-5 lists some typical contaminants of a fiber optic connection. The inspection and
cleaning procedure begins on page 25.
Important Points

Before you begin cleaning, always inspect the fiber connections.

Inspect and clean both fiber ends every time you make a connection.

Keep a protective cap on unplugged fiber connectors.

Do not touch the end of a fiber.

Store unused protective caps in a clean resealable container, located nearby for easy
access.

Do not reuse cleaning tissues or swabs.

Do not allow alcohol or another wet cleaning agent to dry on a fiber end.

Never touch the dispenser tip of an alcohol bottle or any clean portion of a tissue or
swab.

Use care when handling the fiber; do not twist or pull.
Table 2-5 Typical Contaminants
Contaminant Comments
Dust particle, 1 micron Can block up to 1% of the light transmission,
creating a loss of 0.05 dB
Dust particle, 9
microns Although microscopic, the particle can
completely block the fiber core
Human hair Typically 50 to 75 microns in diameter
Oil Frequently caused by touching
Film residues Can accumulate from vapors or smoke
Powdery coatings Can be left behind after water or other solvents
evaporate