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Safety and Regulatory Information
•
When you work with optical devices, power supplies, or other modular accessories, put on an ESD-
preventive wrist strap to reduce the risk of electronic damage to the equipment. Connect the other
end of the strap to an appropriate grounding point on the equipment rack or to an ESD jack on the
chassis if one is provided. Leave the ESD-preventive wrist strap permanently attached to the
equipment rack or chassis so that it is always available when you need to handle components that
are sensitive to ESD.
•
Install all cables in a manner that avoids strain. Use tie wraps or other strain relief devices.
Cable Routing for LAN Systems
Extreme Networks equipment 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, except under the conditions listed in the next paragraph.
As allowed in the USA by the National Electrical Code (NEC), this equipment can be connected
between buildings if any one of the following conditions is true:
•
Cable runs between buildings are less than 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 damage that can cause errors.
Warning
The Ethernet ports of the equipment and its sub-assemblies are suitable only for intra-
building connections (within the same building) or for connections to unexposed wiring or
cabling. (See the conditions listed above.) The Ethernet ports of this equipment or its sub-
assemblies must not be metallically connected to interfaces that connect to the outside plant
(OSP) or its wiring. Ethernet interfaces are designed for use only as intra-building interfaces
(described as Type 2 or Type 4 ports in GR-1089-CORE, Issue 6) and require isolation from the
exposed OSP wiring. The addition of Primary Protectors is not sufficient protection to connect
these interfaces metallically to OSP wiring.
This warning does not apply to T1/E1 ports because T1/E1 ports have built-in isolation and
surge protection that allows them to be connected to OSP wiring.
Installing Power Supply Units and Connecting Power
For the ratings and power input requirements of each power supply unit, see "Technical Specifications"
or the data sheet for the power supply at www.extremenetworks.com.
Warning
Be sure to satisfy the requirements listed in this section when you install Extreme Networks
power supplies or connect power.
ExtremeSwitching SLX 9250 Hardware Installation Guide
Cable Routing for LAN Systems
83
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