Cisco WS-C2960S-24TS-S Hardware Installation Guide - Page 36

Guidelines for Particulate Matter, Installation Guidelines - l replacement

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Preparing for Installation Chapter 2 Switch Installation (24- and 48-Port Switches) Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046 Warning Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods, unless the exposed metal parts are located within a restricted access location and users and service people who are authorized within the restricted access location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key or other means of security. Statement 1072 Warning No user-serviceable parts inside. Do not open. Statement 1073 Warning Installation of the equipment must comply with local and national electrical codes. Statement 1074 Guidelines for Particulate Matter Cisco Ethernet switches are equipped with cooling mechanisms, such as fans and blowers. However, these fans and blowers can draw dust and other particles, causing contaminant buildup inside the chassis, which can result in a system malfunction. You must install this equipment in an environment as free as possible from dust and foreign conductive material (such as metal flakes from construction activities). These standards provide guidelines for acceptable working environments and acceptable levels of suspended particulate matter: • Network Equipment Building Systems (NEBS) GR-63-CORE • National Electrical Manufacturers Association (NEMA) Type 1 • International Electrotechnical Commission (IEC) IP-20 This precaution applies to all Catalyst 2960 switches except for the Catalyst 2960-8TC-L, 2960-8TC-S, 2960G-8TC-L, and 2960PD-8TT-L switches. Installation Guidelines This section does not apply to the Catalyst 2960 8-port switches. For information applicable to those switches, see Chapter 3, "Switch Installation (8-Port Switches)." When you determine where to place the switch, be sure to observe these requirements: • For 10/100/1000 ports, cable lengths from the switch to connected devices must be no longer than 328 feet (100 meters). • The cables meet the specifications in Table B-1 on page B-5, which lists the cable specifications for 1000BASE-X and 100BASE-X SFP modules for the Catalyst 2960 switch. Catalyst 2960 switch SFP ports can use both GLC-GE-100XX and GLC-FE-100XX SFP modules. Catalyst 2960 Switch Hardware Installation Guide 2-4 OL-7075-09

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2-4
Catalyst 2960 Switch Hardware Installation Guide
OL-7075-09
Chapter 2
Switch Installation (24- and 48-Port Switches)
Preparing for Installation
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last.
Statement 1046
Warning
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if
interconnections are made using uninsulated exposed metal contacts, conductors, or terminals.
Avoid using such interconnection methods, unless the exposed metal parts are located within a
restricted access location and users and service people who are authorized within the restricted
access location are made aware of the hazard. A restricted access area can be accessed only through
the use of a special tool, lock and key or other means of security.
Statement 1072
Warning
No user-serviceable parts inside. Do not open.
Statement 1073
Warning
Installation of the equipment must comply with local and national electrical codes.
Statement 1074
Guidelines for Particulate Matter
Cisco Ethernet switches are equipped with cooling mechanisms, such as fans and blowers. However,
these fans and blowers can draw dust and other particles, causing contaminant buildup inside the chassis,
which can result in a system malfunction.
You must install this equipment in an environment as free as possible from dust and foreign conductive
material (such as metal flakes from construction activities).
These standards provide guidelines for acceptable working environments and acceptable levels of
suspended particulate matter:
•
Network Equipment Building Systems (NEBS) GR-63-CORE
•
National Electrical Manufacturers Association (NEMA) Type 1
•
International Electrotechnical Commission (IEC) IP-20
This precaution applies to all Catalyst 2960 switches except for the Catalyst 2960-8TC-L, 2960-8TC-S,
2960G-8TC-L, and 2960PD-8TT-L switches.
Installation Guidelines
This section does not apply to the Catalyst 2960 8-port switches. For information applicable to those
switches, see
Chapter 3, “Switch Installation (8-Port Switches).”
When you determine where to place the switch, be sure to observe these requirements:
•
For 10/100/1000 ports, cable lengths from the switch to connected devices must be no longer than
328 feet (100 meters).
•
The cables meet the specifications in
Table B-1 on page B-5
, which lists the cable specifications for
1000BASE-X and 100BASE-X SFP modules for the Catalyst 2960 switch. Catalyst 2960 switch
SFP ports can use both GLC-GE-100XX and GLC-FE-100XX SFP modules.