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CN 3960 Hardware Installation Guide
I
NSTALLATION
I
NTERFACE
C
ABLING
Removing a Pluggable Optic
The pluggable optics on the CN 3960 are hot swappable and can be removed while the
unit is powered. Removing an installed optic will cause an interruption to any traffic
flowing on that port. The following procedure explains how to remove a pluggable optic:
1. Remove any cabling from the optic.
2. Press or pull on the ejector lever (depending on the type of optic used) and gently
pull the optic out of the slot.
WARNING: Because invisible radiation may be emitted from the aperture of the port when
no fiber cable is connected, avoid exposure to radiation and do not stare into open
apertures.
CAUTION: If you are not immediately re-installing another pluggable optic, install a dust
cover in the slot to protect it from ambient dust.
You have removed the pluggable optic. You can now install a different optic into this port,
or install the removed optic into a different port.
Interface Cabling
This guide assumes that the site’s data cables have been properly installed in a centrally
wired distribution configuration. When installing fiber optic cables and other network
cabling, always have them installed and tested by a technician who is certified by the
Electronics Industry Association /Telecommunications Industry Association (EIA/TIA). This
ensures a quality installation and presents one less variable to consider when
troubleshooting.
WARNING: All electrical connections are intended for indoor use only.
When installing a cable,
Do:
•
Use more cable than required, leaving some slack.
•
Test each section of the network as it is installed. Even in new installations, problems
may occur that will be difficult to isolate later.
•
If it is necessary to run cables across the floor, cover the cables with cable protectors
to prevent damage.
•
Label both ends of all cables.
•
Use cable ties or Velcro tie wraps to secure cables. If staples are used, they must be
hand installed or use a depth stop.
•
Use cable hangers and J-hooks.
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