Guidelines For Particulate Matter; Installation Guidelines - Cisco CATALYST 2960 Hardware Installation Manual

Preparing for Installation
When installing or replacing the unit, the ground connection must always be made first and
Warning
disconnected last. Statement 1046
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if
Warning
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
No user-serviceable parts inside. Do not open. Statement 1073
Warning
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:
•
•
•
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
When you determine where to place the switch, be sure to observe these requirements:
•
•
Catalyst 2960 Switch Hardware Installation Guide
2-4
Network Equipment Building Systems (NEBS) GR-63-CORE
National Electrical Manufacturers Association (NEMA) Type 1
International Electrotechnical Commission (IEC) IP-20
Chapter 3, "Switch Installation (8-Port Switches)."
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
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.
Chapter 2 Switch Installation (24- and 48-Port Switches)
Table B-1 on page B-5, which lists the cable specifications for
OL-7075-09