Cisco 3750 - Catalyst EMI Switch Instruction sheet

CHAPTER
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3
Switch Installation
This chapter describes how to start your switch and how to interpret the power-on
self-test (POST) that ensures proper operation. It describes the planning and
cabling considerations to keep in mind while planning your stack. It describes
how to install the switch and make connections to the switch. Read the topics and
perform the procedures in this order:
•Preparing for Installation, page 3-1
•Verifying Switch Operation, page 3-8
•Planning the Stack, page 3-11
•Installing the Switch, page 3-16
•Connecting the StackWise Cable to the StackWise Ports, page 3-35
•Connecting to the 10/100 and 10/100/1000 Ports, page 3-42
•Connecting to a SFP Module, page 3-44
•Where to Go Next, page 3-46
Preparing for Installation
This section covers these topics:
•Warnings, page 3-2
•EMC Regulatory Statements, page 3-4
•Installation Guidelines, page 3-6

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•Verifying Package Contents, page 3-7
•Verifying Switch Operation, page 3-8
Warnings
These warnings are translated into several languages in Appendix C, “Translated
Safety Warnings.”
Warning This equipment is to be installed and maintained by service personnel only as
defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.
Warning Onlytrainedandqualifiedpersonnelshouldbeallowedtoinstallorreplacethis
equipment.
Warning Read the installation instructions before you connect the system to its power
source.
Warning Before working on equipment that is connected to power lines, remove jewelry
(including rings, necklaces, and watches). Metal objects will heat up when
connected to power and ground and can cause serious burns or weld the metal
object to the terminals.
Warning Do not stack the chassis on any other equipment. If the chassis falls, it can
cause severe bodily injury and equipment damage.
Warning The plug-socket combination must be accessible at all times because it serves
as the main disconnecting device.

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Warning To prevent the switch from overheating, do not operate it in an area that
exceeds the maximum recommended ambient temperature of 113°F (45°C). To
prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around
the ventilation openings.
Warning When installing the unit, the ground connection must always be made first and
disconnected last.
Warning This equipment is intended to be grounded. Ensure that the host is connected to
earth ground during normal use.
Warning Do not work on the system or connect or disconnect cables during periods of
lightning activity.
Warning Ultimate disposal of this product should be handled according to all national
laws and regulations.
Warning Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle.
Warning Class 1 laser product
Warning Avoid exposure to the laser beam.

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EMC Regulatory Statements
This section includes specific regulatory statements about the Catalyst 3750
family of switches.
U.S.A.
U.S. regulatory information for this product is in the front matter of this manual.
Taiwan
This is a Class A Information product. When used in a residential environment, it
may cause radio frequency interference. Under such circumstances, the user may
be requested to take appropriate countermeasures.
Japan
This is a Class A product based on the standard of the Voluntary Control Council
for Interference by Information Technology Equipment (VCCI). If this equipment
is used in a domestic environment, radio disturbance may arise. When such
trouble occurs, the user may be required to take corrective actions.
46464

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Korea
Hungary
This equipment is a Class A product and should be used and installed properly
according to the Hungarian EMC Class A requirements (MSZEN55022). Class A
equipment is designed for typical commercial establishments for which special
conditions of installation and protection distance are used.
Figyelmeztetés a felhasználói kézikönyv számára:
Ez a berendezés “A” osztályú termék, felhasználására és üzembe helyezésére a
magyar EMC “A” osztályú követelményeknek (MSZ EN 55022) megfeleloen
kerülhet sor, illetve ezen “A” osztályú berendezések csak megfelelo kereskedelmi
forrásból származhatnak, amelyek biztosítják a megfelelo speciális üzembe
helyezési körülményeket és biztonságos üzemelési távolságok alkalmazását.
Warning This is a Class A Device and is registered for EMC requirements for industrial
use. The seller or buyer should be aware of this. If this type was sold or
purchased by mistake, it should be replaced with a residential-use type.

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Installation Guidelines
When determining where to place the switch, be sure to observe these
requirements:
•For 10/100 and 10/100/1000 ports, cable lengths from the switch to connected
devices are up to 328 feet (100 meters).
•Table 3-1 lists the cable stipulations for 1000BASE-SX and 1000BASE-LX
SFP connections. The only restriction is that each port must match the
wave-length specifications on the other end of the cable, and the cable must
not exceed the stipulated cable length for reliable communications.
•Operating environment is within the ranges listed in Appendix A, “Technical
Specifications.”
•Clearance to front and rear panels is such that
– Front-panel indicators can be easily read.
– Access to ports is sufficient for unrestricted cabling.
Make sure that there is access to the rear of the rack if you are planning
to stack the switches. If you do not have access to the rear panel, make
sure you cable the switches before you rack mount them.
– Rear-panel power connector is within reach of an AC power receptacle.
Table 3-1 Cabling Stipulations for SFP Modules
SFP
Module
62.5/125 micron
Multimode
850 nm1Fiber
1. nm = nanometer
50/125 micron
Multimode
850 nm Fiber
62.5/125 micron
Multimode
1310 nm Fiber
50/125 micron
Multimode
1310 nm Fiber
9/125 micron
Single-mode
1310 nm Fiber
8 micron
Single-mode
Dispersion
Shifted Fiber
SX 275 m2at
200 Mhz-km
2. m = meter
550 m at
500 Mhz-km ————
LX — — 550 m at
500 Mhz-km 550 m at 400 Mhz-km 10 km —

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•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).
Note If the switch is installed in a closed or multirack assembly, the
temperature around it might be greater than normal room temperature.
Verifying Package Contents
Note Carefully remove the contents from the shipping container, and check each item
for damage. If any item is missing or damaged, contact your Cisco representative
or reseller for support. Return all packing material to the shipping container, and
save it.
The switch is shipped with these items:
•This Catalyst 3750 Switch Hardware Installation Guide
•About the Catalyst 3750 Documentation flyer
•AC power cord (AC-powered switches)
•One RJ-45-to-DB-9 adapter cable
•Mounting kit containing:
– Four rubber feet for mounting the switch on a table
– Two 19-inch rack-mounting brackets
– Four Phillips flat-head screws for attaching the brackets to the switch
(Catalyst 3750G-24TS switch)
– Six Phillips flat-head screws for attaching the brackets to the switch
(Catalyst 3750-24TS, 3750G-24T, and 3750-48TS switches)
– Four Phillips machine screws for attaching the brackets to a rack
– One cable guide and one black Phillips machine screw for attaching the
cable guide to one of the mounting brackets

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– One Redundant Power System (RPS) connector cover (for wall
mounting)
– Two Phillips pan-head screws (for attaching the RPS cover)
– Four Phillips truss-head screws (for wall-mounting brackets)
– StackWise cable. Depending on the cable that you ordered, you will have
either the 0.5-meter, 1-meter, or the 3-meter cable.
Verifying Switch Operation
Before installing the switch in a rack, on a wall, or on a table or shelf, you should
power the switch and verify that the switch passes POST. These sections describe
the steps required to connect a PC to the switch console port, and to power on the
switch and observe POST:
•Connecting a PC or Terminal to the Console Port, page 3-8
•Powering On the Switch and Running POST, page 3-10
Connecting a PC or Terminal to the Console Port
To connect a PC to the console port, use the supplied RJ-45-to-DB-9 adapter
cable. To connect the switch console port to a terminal, you need to provide a
RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number
ACS-DSBUASYN=) containing that adapter from Cisco. For console port and
adapter pinout information, see the “Cable and Adapter Specifications” section on
page B-5.
The terminal-emulation software—frequently a PC application such as
Hyperterminal or Procomm Plus—makes communication between the switch and
your PC or terminal possible.
Follow these steps to connect the PC or terminal to the switch:
Step 1 Configure the baud rate and character format of the PC or terminal to match these
console port default characteristics:
•9600 baud
•8 data bits
•1 stop bit

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•No parity
•None (flow control)
After you have gained access to the switch, you can change the console baud rate
through the Administration > Console Baud Rate window in the Cluster
Management Suite (CMS).
Step 2 Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into
the console port, as shown in Figure 3-1.
Step 3 Attach the DB-9 female DTE adapter of the RJ-45-to-DB-9 adapter cable to a PC,
or attach an appropriate adapter to the terminal.
Step 4 Start the terminal-emulation program if you are using a PC or terminal.
Figure 3-1 Connecting to the Console Port
1Console port
CONSOLE
STACK 1 STACK 2
86685
1

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Powering On the Switch and Running POST
If your configuration has an RPS, connect the switch and the RPS to the same AC
power source. See the “Power Connectors” section on page 2-15, and refer to the
Cisco RPS documentation for more information.
Note Always put the RPS in standby mode when you are connecting devices to it and
in active mode during normal operation.
To power on the switch, follow these steps:
Step 1 Make sure that you have started the terminal emulation software program (such as
ProComm, HyperTerminal, tip, or minicom) from your management station. See the
“Connecting a PC or Terminal to the Console Port” section on page 3-8 for
information on connecting to the switch console port.
Step 2 Connect one end of the AC power cord to the AC power connector on the switch.
Step 3 Connect the other end of the power cord to an AC power outlet.
If you are installing the Catalyst 3750-24TS, 3750G-24T, or 3750-48TS switches,
you can use the Cisco RPS 300.
Warning Attach only the Cisco RPS 300 (model PWR300-AC-RPS-N1) to the RPS
receptacle
If you are installing the Catalyst 3750-24TS, 3750G-24T, 3750G-24T, or the
3750-48TS switches, you can use the Cisco RPS 675.
Warning Attach only the Cisco RPS 675 (model PWR675-AC-RPS-N1=) to the RPS
receptacle
As the switch powers on, it begins POST, a series of tests that run automatically
to ensure that the switch functions properly. When the switch begins POST, the
System, the RPS, the Master, the Status, the Duplex, the Speed, and the Stack