Cisco Catalyst 2960 Series User manual

CHAPTER
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Catalyst 2960-S Switch Hardware Installation Guide
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1
Switch Installation
Read these topics and perform the procedures in this order:
•Preparing, page 1-1
•Planning a Switch Stack, page 1-5
•Installing the Switch, page 1-10
•Connecting the FlexStack Cables, page 1-17
•Installing the Power Cord Retainer (Optional), page 1-18
•Installing SFP and SFP+ Modules, page 1-20
•Connecting to SFP and SFP+ Modules, page 1-22
•10/100 and 10/100/1000 PoE+ Port Connections, page 1-24
•10/100 and 10/100/1000 Port Connections, page 1-26
For initial switch setup, assigning the switch IP address, and powering on information, see the switch
getting started guide on Cisco.com.
Preparing
•Safety Warnings, page 1-1
•Installation Guidelines, page 1-4
•Box Contents, page 1-4
•Tools and Equipment, page 1-4
Safety Warnings
This section includes the basic installation caution and warning statements. Read this section before you
start the installation procedure. Translations of the warning statements appear in the Regulatory
Compliance and Safety Information for the Catalyst 2960 and 2960-S Switches guide on the
documentation CD and online at Cisco.com.
Warning Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury
and equipment damage. Statement 48

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Chapter 1 Switch Installation
Preparing
Warning Ethernet cables must be shielded when used in a central office environment. Statement 171
Warning If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on
the back of the switch. Statement 265
Warning Attach only the following Cisco RPS model to the RPS receptacle:
PWR-RPS2300 Statement 370
Warning Read the wall-mounting instructions carefully before beginning installation. Failure to use the
correct hardware or to follow the correct procedures could result in a hazardous situation to people
and damage to the system. Statement 378
Warning Read the installation instructions before connecting the system to the power source. Statement 1004
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:
- This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
- When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest
component at the bottom of the rack.
- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in
the rack. Statement 1006
Warning Class 1 laser product. Statement 1008
Warning This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028

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Chapter 1 Switch Installation
Preparing
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
Warning For connections outside the building where the equipment is installed, the following ports must be
connected through an approved network termination unit with integral circuit protection: 10/100/1000
Ethernet. Statement 1044
Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of:
<113°F (45°C). Statement 1047
Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this device.
Statement 1071
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
Warning To prevent airflow restriction, allow clearance around the ventilation openings to be at least:
3 inches (7.6 cm). Statement 1076

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Chapter 1 Switch Installation
Preparing
Installation Guidelines
When determining where to install the switch, verify that these guidelines are met:
•Clearance to the switch front and rear panel meets these conditions:
– Front-panel LEDs can be easily read.
– Access to ports is sufficient for unrestricted cabling.
– AC power cord can reach from the AC power outlet to the connector on the switch rear panel.
– Access to the rear of the rack is sufficient for connecting StackWise cables to stacked switches,
or connecting the optional Cisco Redundant Power Supply (RPS) 2300
•Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure the cabling is safely away from other devices that might damage the
cables.
•Airflow around the switch and through the vents is unrestricted.
•Temperature around the unit does not exceed 113°F (45°C). If the switch is installed in a closed or
multirack assembly, the temperature around it might be greater than normal room temperature.
Operating environment is within the ranges listed in Appendix 1, “Technical Specifications.”
•Humidity around the switch does not exceed 85 percent.
•Altitude at the installation site is not greater than 10,000 feet.
•For 10/100 and 10/100/1000 fixed ports, the cable length from a switch to a connected device cannot
exceed 328 feet (100 meters).
•For cable lengths for SFP-module connections, see the “Cables and Adapters” section on page 1-3.
•Cooling mechanisms, such as fans and blowers in the switch, can draw dust and other particles
causing contaminant buildup inside the chassis, which can result in system malfunction. You must
install this equipment in an environment as free from dust and foreign conductive material (such as
metal flakes from construction activities) as is possible.
Box Contents
The switch getting started guide describes the box contents. If any item is missing or damaged, contact
your Cisco representative or reseller for support.
Tools and Equipment
Obtain these necessary tools and equipment:
•A number-2 Phillips screwdriver to rack-mount the switch.
•A flathead screwdriver to remove the stack module cover, if applicable.

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Chapter 1 Switch Installation
Planning a Switch Stack
Verifying Switch Operation
Before you install the switch in a rack, on a wall, or on a table or shelf, power on the switch and verify
that it passes POST.
To power on the switch, plug one end of the AC power cord into the switch AC power connector, and
plug the other end into an AC power outlet.
As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the
switch functions properly. LEDs can blink during the test. POST lasts approximately 1 minute. When
the switch begins POST, the System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED
blinks green, and the other LEDs remain solid green.
When the switch completes POST successfully, the System LED remains green. The RPS LED remains
green for some time and then reflects the switch operating status. The other LEDs turn off and then
reflect the switch operating status. If a switch fails POST, the System LED turns amber.
POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.
After a successful POST, unplug the power cord from the switch. Install the switch in a rack, on a wall,
on a table, or on a shelf as described in the “Installing the Switch” section on page 1-10.
If your configuration has an RPS, connect the switch and the RPS to different AC power sources. See
the Cisco RPS documentation for information.
Note When you connect the RPS to the switch, put the RPS in standby mode. Set the RPS to active mode
during normal operation.
Warning Attach only the following Cisco RPS model to the RPS receptacle: PWR-RPS2300 = Statement 370
Planning a Switch Stack
Note This section applies only to the Catalyst 2960-S stacking-capable switches.
Stack Guidelines
•Connect only Catalyst 2960-S switches in a switch stack. You cannot stack the Catalyst 2960-S with
other switches such as the Catalyst 2975, 3550, 3560, or 3750 switches.
•Stack only up to four switches.
•Install the FlexStack module and the FlexStack cable. You can order them from your Cisco sales
representative: C2960S-STACK=.
Note The FlexStack module is hot-swappable and can be inserted while the switch is powered on.
•Order the appropriate cable from your Cisco sales representative. The length of FlexStack cable
depends on your configuration. These are the different sizes available:

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Chapter 1 Switch Installation
Planning a Switch Stack
– CAB-STK-E-0.5M= (0.5-meter cable)
– CAB-STK-E-1M= (1-meter cable)
– CAB-STK-E-3M= (3-meter cable)
•Access to the switch rear panel and to the rear of the rack.

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Chapter 1 Switch Installation
Planning a Switch Stack
Installing the FlexStack Module
Step 1 Use a flat-blade screwdriver to remove the FlexStack module blank cover on the switch back panel.
Figure 1-1 Removing the Blank Cover
Step 2 Grasp the FlexStack module on the sides, and insert it into the module slot. Push the module in
completely until you feel it snap into place.
Figure 1-2 Inserting the FlexStack Module
Step 3 Secure the screws tightly on each side of the module.
Figure 1-3 Securing the FlexStack Module
Note Make sure the screws are only finger-tight to avoid overtightening.
206761
206762
RATING
100-240~
12-6A, 50-60Hz
206763
RATING
100-240~
12-6A, 50-60Hz

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Chapter 1 Switch Installation
Planning a Switch Stack
Stack Cabling
Figure 1-5 and Figure 1-6 show the switches stacked in a vertical rack or on a table. The connections are
redundant.
Figure 1-4 Stacking Switches with the 0.5-meter FlexStack Cable
Figure 1-5 Stacking Switches with 0.5-meter and 3-meter FlexStack Cables
Stack Bandwidth and Partitioning Examples
Figure 1-6 shows a stack that provides full bandwidth with redundant connections.
Figure 1-6 Stack with Full Bandwidth Connections
Figure 1-7 shows a stack with incomplete stack cabling connections. This stack provides only half
bandwidth and does not have redundant connections.
206231
206230
206701
A
B
C

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Chapter 1 Switch Installation
Planning a Switch Stack
Figure 1-7 Stack with Half Bandwidth Connections
Figure 1-8 shows a stack with a bad FlexStack cable in link B. This stack provides only half bandwidth
and does not have redundant connections.
Figure 1-8 Stack with a Failover Condition
Figure 1-9 shows a stack with a bad link B. This stack partitions into two stacks, and switch 1 and
switch 3 are stack masters.
Figure 1-9 Partitioned Stack with a Failover Condition
A
B
206702
A
B
206703
C
A
B
206704

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Chapter 1 Switch Installation
Installing the Switch
Power-On Sequence for Switch Stacks
Consider these guidelines before you power on the switches in a stack:
•The sequence in which the switches are first powered on might affect the switch that becomes the
stack master.
•If you want a particular switch to be the stack master, power on that switch first. This switch
becomes the stack master and remains the stack master until a master re-election. After 2 minutes,
power on the other stack switches.
•If you have no preference as to which switch becomes the stack master, power on all the switches in
the stack within a 1-minute timeframe. These switches participate in the stack master election.
Switches powered on after the 1-minute timeframe do not participate in the election.
•Power off a switch before you add it to or remove it from an existing switch stack.
For conditions that can cause a stack master re-election or to manually elect the stack master, see the
“Managing Switch Stacks” chapter in the switch software configuration guide on Cisco.com.
Installing the Switch
•Rack-Mounting, page 1-10
•Wall-Mounting, page 1-14
•Table- or Shelf-Mounting, page 1-17
•After Switch Installation, page 1-17
Rack-Mounting
Installation in other than 19-inch racks requires a bracket kit not included with the switch. Figure 1-10
shows the standard 19-inch brackets and ETSI mounting brackets. You can order the ETSI bracket from
your Cisco sales representative:700-19781XX
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:
- This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
- When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest
component at the bottom of the rack.
- If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in
the rack. Statement 1006