
Precautions 7
WARNING
Risk of eye injury by laser
Fiber optic equipment can emit laser or infrared light that can injure
eyes. Never look into an optical fiber or connector port. Always
assume that fiber optic cables are connected to a light source.
CAUTION
If you are not installing a module in the slot, be sure to keep the
metal cover plate in place over the slot. Removing the cover plate
impedes airflow and proper cooling of the unit.
Protecting modules
Follow these general practices to prevent equipment damage when working
on the Ethernet Routing Switch 8300 Series:
•Always wear an antistatic wrist strap connected to an Electrostatic
discharge (ESD) grounding jack when handling modules.
•Always set modules on appropriate antistatic material.
•Handle modules by the faceplate. Do not touch pins or electrical
connections.
•Do not leave slots open. All slots must be filled with modules or, if empty,
covered with slot covers to maintain safety compliance, proper cooling,
and EMI containment in the shelf.
•Ensure that your environment meets the necessary requirements for
temperature, humidity, and cleanliness.
•Do not overtighten thumb screws or lug nuts. Tighten until snug plus a
quarter turn. If you use a power tool to tighten screws, use a low torque
setting (2-3 in/lbs).
For additional information on installing modules, see Nortel Ethernet
Routing Switch 8300 Installation — Modules (NN46200-305).
Protecting cables and connectors
•Support cables to prevent any stress on the connectors. If you have
a high cable density configuration, you need to install additional
cable-management equipment.
•Do not exceed the bend radius recommended for the type of cable
installed.
•Do not exceed the bend radius recommended for fiber optic cable. The
acceptable bend radius for fiber optic cable is ten times its diameter, or
2.5-5 cm (1-2 in.). Anything less than the recommendation can cause
Nortel Networks Ethernet Routing Switch 8300
Installation and Commissioning — Quick Start
NN46200-100 02.01 Standard
3.0 6 September 2006
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