Installation guide

General Safety Precautions
BlackDiamond 20808 Switch Hardware Installation Guide
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● There are no customer serviceable components in this system. Repairs to the system must be
performed by an Extreme Networks factory service technician.
● To remove power from the system, you must unplug all power cords from wall outlets. The power
cord is the disconnect device to the main power source.
● Disconnect all power before removing the back panel of any Extreme Networks switch, unless
otherwise instructed by a product specific maintenance procedure.
● Disconnect all power cords before working near power supplies, unless otherwise instructed by a
maintenance procedure.
● When handling modules, optic devices, power supplies, or other modular accessories put on the
electrostatic discharge (ESD) preventive wrist strap to reduce the risk of electronic damage to the
equipment. Leave the ESD-preventive wrist strap permanently attached to the chassis so that it is
always available when you need to handle ESD-sensitive components.
● Install all cables in a manner that avoids strain. Use tie wraps or other strain relief devices.
● Replace power cord immediately if it shows any signs of damage.
General Safety Precautions
Follow these guidelines:
● Do not try to lift objects that you think are too heavy for you.
● When installing equipment in a rack, load the heavier devices in the lowest portions of the rack to
avoid a top-heavy hazard.
● Only use tools and equipment that are in perfect condition. Do not use equipment with visible
damage.
● Routing cables: Lay cables so as to prevent any risk of these cables being damaged or causing
accidents, such as tripping.
Cable Routing for LAN Systems
The BlackDiamond 20808 switch meets the requirements for LAN system equipment. LAN systems are
designed for intra-building installations; that is, cable runs between devices must be in the same
building as the connected units.
This equipment can be connected between buildings if any one of the following conditions is true:
● Cable runs between buildings are less then 140 feet long.
● Cable runs between buildings are directly buried.
● Cable runs between buildings are in an underground conduit, where a continuous metallic cable
shield or a continuous metallic conduit containing the cable is bonded to each building grounding
electrode system.
CAUTION
Failure to follow these requirements for cable routing conditions may expose the user to electrical shock and expose
the unit to errors or damage.