Mitel 3300 Technician's Handbook page 145

• Remove the plastic caps from the cable connectors
on the FIM faceplate and connect the optical fiber
cables to those
7. Replace the DSU cards.
8. Power up the node.
9. Replace the front panels.
To install a FIM in a DSU Node:
WARNING: Fiber optic sources emit infrared light
invisible to the human eye that can damage the
retina. Never look directly into a source or into the
end of a fiber energized by a source. When working
with raw fiber optic cable, be careful of fiber ends or
slivers that can puncture the skin and cause
irritation.
1. Attach the anti-static strap to your wrist.
2. Unpack the FIM. Inspect the FIM to ensure that it is
not damaged.
3. Remove the DSU node front door
• Pry open the two latches on the right hand side of
the black cover panel on the front door, and swing
the cover panel off to the left.
• Loosen the two screws under the black panel to
release the front door.
• Pull the top corners of the front door out and lift it off
the lip at the bottom front of the node.
4. Remove the DSU cards from the cabinet. Insert each
circuit card in a separate anti-static bag.
5. Slide the FIM into the bottom slot 1 or slot 6 until it
connects with the backplane firmly. Fasten the FIM in
place with the two screws provided or use the latch on
the card guides. See FIM and PRC Installation in the
DSU Node.
6. Remove the anti-static strap from your wrist.
Upgrade and FRUs
connectors.
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