Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883
Text Part Number: 78-19377-02
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT
SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE
OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required
to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If the equipment causes interference to radio or television reception, which can be
determined by turning the equipment off and on, users are encouraged to try to correct the interference by using one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Modifications to this product not authorized by Cisco could void the FCC approval and negate your authority to operate the product.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH
ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF
DEALING, USAGE, OR TRADE PRACTICE.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this
URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership
relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the
document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
Power Supply-Side LEDs1-12
Power Supply Features1-13
Management Options1-13
Network Configurations1-14
Cisco CGS 2520 Hardware Installation Guide
iii
Contents
CHAPTER
2Switch Installation2-1
Warnings2-1
Installation Guidelines2-3
Verifying Switch Operation2-3
Installing the Switch2-4
Mounting into a Rack2-4
.Mounting Brackets2-4
Attaching Brackets for 19-Inch Racks2-5
Attaching Brackets for 19-Inch Racks (IP-30 Compliance)2-7
Attaching Brackets for 23-Inch Racks2-12
Attaching Brackets for ETSI Racks2-13
Mounting the Switch into a Rack2-15
Wall-Mounting2-16
Attaching Brackets for Wall Mounting2-16
Wall-Mounting (for IP-30 Compliance)2-17
Inserting and Removing the SFP Module Patch Cable2-21
Removing the SFP Module Patch Cable2-22
Replacing the SD Flash Memory Card2-22
Connecting Devices to the Ethernet Ports2-24
Connecting to the 10/100 and 10/100/1000 Ports2-25
Connecting to the 10/100 PoE Ports2-25
Where to Go Next2-26
3Power Supply Installation3-1
Power Supply Modules3-1
Power Supply Module Installation3-2
Installation Guidelines3-3
Installing a Power Supply Module3-3
Equipment That You Need3-3
Grounding the Switch3-4
Installing the Power Supply Module in the Switch3-6
Wiring the Power Source3-7
Removing the Power Supply Module3-12
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Contents
CHAPTER
4Troubleshooting4-1
Diagnosing Problems4-1
Switch POST Results4-1
Switch LEDs4-1
Switch Connections4-2
Bad or Damaged Cable4-2
Ethernet and Fiber-Optic Cables4-2
Link Status4-2
10/100 and 10/100/1000 Port Connections4-2
10/100 PoE Port Connections4-3
SFP Module4-3
Interface Settings4-3
Ping End Device4-3
Spanning Tree Loops4-4
Switch Performance4-4
Speed, Duplex, and Auto-Negotiation4-4
Auto-Negotiation and Network Interface Cards4-4
Cabling Distance4-4
APPENDIX
APPENDIX
Resetting the Switch to the Factory Default Settings4-5
Finding the Switch Serial Number4-5
ATechnical SpecificationsA-1
Switch SpecificationsA-1
Power Supply Module SpecificationsA-4
SFP Module CablesB-4
Cable PinoutsB-6
Console Port Adapter PinoutsB-8
APPENDIX
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CConfiguring the Switch with the CLI Setup ProgramC-1
Accessing the CLI Through the Console PortC-1
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I
NDEX
Contents
RJ-45 Console PortC-1
USB Console PortC-3
Installing the Cisco Microsoft Windows USB Device DriversC-4
Installing the Cisco Microsoft Windows XP USB DriverC-4
Installing the Cisco Microsoft Windows 2000 USB DriverC-4
Installing the Cisco Microsoft Windows Vista USB DriverC-5
Uninstalling the Cisco Microsoft Windows USB DriversC-5
Uninstalling the Cisco Microsoft Windows XP and 2000 USB DriverC-5
Uninstalling the Cisco Microsoft Windows Vista USB DriverC-6
Entering the Initial Configuration InformationC-6
IP SettingsC-6
Completing the Setup ProgramC-7
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Preface
This guide describes the hardware features of the Cisco Connected Grid Switch (CGS) 2520. It describes
the physical and performance characteristics of the switch, explains how to install it, and provides
troubleshooting information.
This guide does not describe system messages that you might receive or how to configure your switch.
See the switch software configuration guide, the switch command reference, and the switch system
message guide on Cisco.com: http://www.cisco.com/go/cgs2520_docs
NoteMeans reader take note. Notes contain helpful suggestions or references to materials not contained in
this manual.
CautionMeans reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Warning
IMPORTANT SAFETY INSTRUCTIONS
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.
SAVE THESE INSTRUCTIONS
The safety warnings for this product are translated into several languages in the Regulatory Compliance
and Safety Information for the Cisco CGS 2520 that ships with the product on the documentation CD.
The EMC regulatory statements are also included in that guide.
Statement 1071
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vii
Related Publications
Related Publications
http://www.cisco.com/go/cgs2520_docs
NoteBefore installing, configuring, or upgrading the switch, see the release notes on Cisco.com for
the latest information.
• Release Notes for the Cisco CGS 2520
• Cisco CGS 2520 Getting Started Guide
• Regulatory Compliance and Safety Information for the Cisco CGS 2520
• Cisco CGS 2520 Software Configuration Guide
• Cisco CGS 2520 Command Reference
• Cisco CGS 2520 System Message Guide
• Installation Notes for the Power Supply Modules for the Cisco CGS 2520
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
viii
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Product Overview
The Cisco CGS 2520 switches, also referred to as the switch, are Ethernet switches that you can connect
devices such as Intelligent Electronic Devices (IEDs), distributed controllers, substation routers, Cisco
IP Phones, Cisco Wireless Access Points, and other network devices such as redundant substation
switches.
This chapter contains the following topics:
• Switch Models, page 1-1
• Cable Side, page 1-2
• Power Supply Side, page 1-11
• Management Options, page 1-13
Switch Models
CHAP T E R
1
NoteThe information in this document regarding China switches (part numbers ending with -C, for example,
PWR-RGD-AC-DC-C) are identical to the non-China switches, except where specified.
Table 1-1Switch Models
ModelDescription
Cisco CGS-2520-24TC 24 10/100 FastEthernet ports, two dual-purpose ports
(two 10/100/1000BASE-T copper ports and two SFP
and two AC and DC power supply module slots.
Cisco CGS-2520-24TC-C(For China) 24 10/100 FastEthernet ports, two dual-purpose ports
(two 10/100/1000BASE-T copper ports and two SFP module slots),
and two AC and DC power supply module slots.
FastEthernet PoE ports, two dual-purpose ports
(two 10/100/1000BASE-T copper ports and two SFP module slots),
and two AC and DC power supply module slots.
1
module slots),
2
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7
492
1 3568
207196
Cable Side
Chapter 1 Product Overview
1. SFP = small-form-factor pluggable.
2. PoE = Power over Ethernet.
The 10/100 Fast Ethernet downlink ports in Figure 1-1 are grouped in pairs. The first member of the pair
(port 1) is above the second member (port 2) on the left. Port 3 is above port 4, and so on. The
dual-purpose ports are numbered 1 and 2.
Figure 1-1Cisco CGS-2520-24TC Cable-Side View
1SD1 flash memory card slot
2LEDs 7USB (mini-Type B) console port
3Express Setup button8Power-input terminal
410/100 ports9Alarm port
5Dual purpose ports
1. SD = Secure Digital
The100BASE-FX SFP ports and the 10/100 PoE ports are grouped in pairs. The first member of the pair
(port 1) is above the second member (port 2) on the left. Port 3 is above port 4, and so on. The
dual-purpose ports are numbered 1 and 2.
6RJ-45 console port
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Cisco CGS 2520
POWER
OVER
ETHERNET
POWER
OVER
ETHERNET
8
4
102
1 36579
207197
Figure 1-2Cisco CGS-2520-16S-8PC Cable-Side View
1SD flash memory card slot 6Dual purpose ports
2LEDs 7RJ-45 console port
3Express Setup button8USB (mini-Type B) console port
4100BASE-FX SFP ports9Power-input terminal
510/100 PoE ports 10Alarm port
Cable Side
10/100 Fast Ethernet Ports
You can set the 10/100 ports on the switch to operate in any combination of half duplex, full duplex, or
10 or 100 Mb/s. You can set the ports for speed and duplex auto-negotiation. The default setting is
auto-negotiate.
When set for auto-negotiation, the switch determines the speed and duplex settings of the attached
device, and advertises its own capabilities. If the connected device also supports auto-negotiation, the
switch negotiates the best connection (the fastest line speed that both devices support and full-duplex
transmission if the attached device supports it), and configures itself accordingly. In all cases, the
attached device must be within 328 feet (100 meters).
PoE Ports
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.
The 10/100 PoE ports on the Cisco CGS-2520-16S-8PC-C switches provide PoE support for devices that
are compliant with IEEE 802.3af. The Cisco prestandard PoE is also supported for Cisco IP Phones and
Cisco Aironet Access Points. The PoE ports on the switch deliver up to 15.4 W of PoE. Any four of the
eight ports are designated as high priority PoE ports, while other four ports are designated as low priority
Statement 1072
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Chapter 1 Product Overview
PoE ports. When both the power supply modules are installed, the system has enough power to support
all the eight ports as PoE ports. In case one of the power supply module fails, the power to the low
priority PoE ports is dropped, while power to the high priority PoE ports remains uninterrupted.
On a per-port basis, you control whether or not a port automatically provides power when an IP phone
or an access point is connected.
The 10/100 PoE ports use RJ-45 connectors with Ethernet pinouts. The maximum cable length is 328
feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5, Category 5e, or
Category 6 unshielded twisted pair (UTP) cable. The 10BASE-T traffic can use Category 3 or
Category 4 UTP cable.
For information about configuring and monitoring PoE ports, see the switch software configuration
guide on Cisco.com.
For information about port connections and port specifications, see the Connecting Devices to the
Ethernet Ports, page 2-24 and the Connector and Cable Specifications, page B-1.
NoteThe output of the PoE circuit has been evaluated as a Limited Power Source (LPS) per IEC 60950-1.
Dual-Purpose Ports
You can configure the dual-purpose ports on the switch as either 10/100/1000 ports or as SFP-module
ports. You can set the 10/100/1000 ports to autonegotiate, or you can configure them as fixed 10, 100,
or 1000 Mb/s (Gigabit) Ethernet ports.
By default, the switch selects the medium for each dual-purpose port (10/100/1000BASE-T or SFP).
When a link is achieved on one media type, the switch disables the other media type until the active link
goes down. If links are active on both media, the SFP-module port has priority, but you can use the
media-type interface configuration command to manually designate the port as an RJ-45 port or an SFP
port.
You can configure the speed and duplex settings consistent with the selected media type. For information
on configuring interfaces, see the switch software configuration guide.
SFP Modules
The switch Ethernet SFP modules provide connections to other devices. These field-replaceable
transceiver modules provide the uplink interfaces.The modules have LC connectors for fiber-optic
connections or RJ-45 connectors for copper connections. You can use any combination of the supported
SFP modules listed in Table 1 -2.
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Chapter 1 Product Overview
126809
Table 1-2Maximum Operating Temperature
Type of SFP ModuleModel
Rugged and Industrial SFPs
–40 to 140°F (–40 to 60°C)
Commercial SFPs
32 to 113°F (0 to 45°C)
Cable Side
• GLC-SX-MM-RGD
• GLC-LX-SM-RGD
• GLC-FE-100LX-RGD
• GLC-FE-100FX-RGD
• GLC-ZX-SM-RGD
• GLC-BX-D with DOM support
• GLC-BX-U with DOM support
• GLC-FE-100LX
• GLC-FE-100BX-D
• GLC-FE-100BX-U
• GLC-FE-100FX
• GLC-FE-100EX
Extended temperature SFPs
23 to 140°F (–5 to 60°C)
For information about SFP modules, see your SFP module documentation and the Installing and
Removing SFP Modules, page 2-19. For cable specifications, see SFP Module Cables, page B-4
SFP Module Patch Cable
The switch uses an SFP-module patch cable, a 0.5-meter, copper, passive cable with SFP module
connectors at each end (see Figure 1-3). The patch cable connects two switches in a cascaded
configuration.
Figure 1-3SFP-Module Patch Cable
• GLC-FE-100ZX
• CWDM SFP with DOM support
• SFP-GE-L with digital optical monitoring
(DOM) support
• SFP-GE-S with DOM support
• SFP-GE-Z with DOM support
• GLC-EX-SMD with DOM support
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See the Inserting and Removing the SFP Module Patch Cable, page 2-21 for information about using the
SFP module patch cable.
You can order this cable (part number CAB-SFP-50CM=).
Cisco CGS 2520 Hardware Installation Guide
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Cable Side
Cisc
o CG
S 2
5
2
Power-Input Terminal
The power-input terminal provides screw terminals for the AC and DC power connections. The switch
can operate with one or two power supplies. If one of the power sources fail, the other continues to power
the switch. See Power Supply Installation, page 3-1 for information.
Figure 1-4Power-Input Terminal
Chapter 1 Product Overview
Alarm Ports
Alarm Input
Alarm Output
207234
The switch has four alarm inputs and one alarm output. The alarm setting is open or closed.
• Open means that the normal condition has current flowing through the contact (referred to as a
normally closed contact). The alarm is generated when the current stops.
• Closed means that no current flows through the contact (referred to as a normally open contact). The
alarm is generated when the current flows.
The alarm input is a dry-contact alarm port. You can connect up to four alarm inputs from devices, such
as a door, a temperature gauge, or a fire alarm, to the alarm port. You can use the CLI to set the alarm
severity to minor, major, or critical. An alarm generates a system message and turns on an LED. See
Alarm LEDs, page 1-9 for the LED descriptions.
The alarm output can be configured as a minor or major alarm. Output alarms often control an external
alarm, such as a bell or a light. To connect an external alarm device to the relay, connect two relay contact
wires to complete the electrical circuit. See Alarm Port, page B-3 for information on the alarm pinouts.
Management Ports
You can connect the switch to a PC running Microsoft Windows or to a terminal server through either
the RJ-45 console port or the USB console port.
• RJ-45 console port. The RJ-45 connection uses an RJ-45-to-DB-9 female cable
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• USB mini-Type B console port (5-pin connector); the USB connection uses a USB Type A-to-5-pin
The USB console interface speeds are the same as the RJ-45 console interface speeds.
To use the USB console port, you must install the Cisco Windows USB device driver on the device that
is connected to the USB console port (device running with Microsoft Windows).
NoteFor information about downloading the Cisco USB device driver, see the Installing the Cisco Microsoft
Windows USB Device Drivers, page C-4.
With the Cisco Windows USB device driver, connecting and disconnecting the USB cable from the
console port does not affect Windows HyperTerminal operations. Mac OS X or Linux require no special
drivers.
NoteThe 5-pin mini-Type B connectors resemble the 4-pin mini-Type B connectors. They are not compatible.
Use only the 5-pin mini-Type B. See Figure 1-5.
Cable Side
mini-Type B cable
LEDs
Figure 1-5USB Mini-Type B Port
253163
The configurable inactivity timeout reactivates the RJ-45 console port if the USB console port is
activated, but no input activity occurs on it for a specified time period. When the USB console port
deactivates due to a timeout, you can restore its operation by disconnecting and reconnecting the USB
cable. For information on using the CLI to configure the USB console interface, see the switch software
guide.
You can use the switch system and port LEDs to monitor switch activity and performance.
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Cable Side
Switch Panel LEDs
Chapter 1 Product Overview
Figure 1-6Switch LEDs (Cable Side)
213 456789 10 111213
207198
System LED
1415
16
1SYS (system) 9OUT (alarm output)
2CON (console) 10 PSU1 (power supply 1)
3USB 11 PSU2 (power supply 2)
1
4SD (SD flash memory card) 12 PoE
5IN1 (alarm input 1) 13 Express Setup button
6IN2 (alarm input 2) 14 Ethernet ports
7IN3 (alarm input 3) 15 SFP module port
8IN4 (alarm input 4) 16 10/100/1000 port
1. Only on the Cisco CGS-2520-16S-8PC switch.
Table 1-3System LED
ColorSystem Status
OffSystem is not powered on
1
Blinking greenPOST
is in progress
GreenSystem is operating normally
AmberSystem is receiving power but is not functioning properly
1. POST = power-on self-test.
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Chapter 1 Product Overview
Power Supply Module LEDs
The switch power supply module LEDs are labeled PSU1 and PSU2 (on the switch) and PSU OK (on
the power supply module). They show whether power supply modules 1 and 2 are receiving power. See
Figure 1-6 and Figure 1-9.
Table 1-4Power Supply Module LEDs
ColorSystem Status
OffPower supply module (1 or 2) is not installed
GreenValid input is present, and the output is within the operating range
RedValid input is present, and the output is outside the operating range or is not present
Blinking redValid input is not present
Alarm LEDs
Table 1-5Alarm Input LEDs
Cable Side
Console LEDs
ColorSystem Status
OffNo alarm
AmberMinor alarm
RedMajor alarm
Blinking redCritical alarm
Table 1-6Alarm Output LED
ColorSystem Status
GreenNo alarm
RedRelay closed, alarm present
The console LEDs show which console port is in use. See Figure 1-6 and Figure 1-9 for the LED
locations.
If you connect a cable to a console port, the switch automatically uses that port for console
communication. If you connect two console cables, the USB console port has priority.
Table 1-7RJ-45 and USB Console Port LEDs
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LEDColorDescription
RJ-45 console port GreenRJ-45 console port is active.; USB console port LED is off
OffPort is not active; USB console port is active
USB console portGreenUSB console port is active; RJ-45 console port LED is off
OffPort is not active; RJ-45 console port is active
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Port LEDs
Chapter 1 Product Overview
RJ-45 ports and SFP-module slots have port LEDs. Port LEDs, as a group or individually, provide
information about the switch and about the individual ports.
Table 1-8Meaning of Port LED Colors
LED ColorMeaning
OffNo link or port was administratively shut down
Green Link present but not sending or receiving data
Blinking greenActivity. Port is sending or receiving data
Alternating
green-amber
AmberPort is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for link
faults
After a port is reconfigured, the port LED is amber for up to 30 seconds as
STP searches for loops.
PoE LED
Table 1-9PoE LED
ColorMeaning
OffNot enabled
GreenEnabled and ports are functioning correctly
Alternating green and amberEnabled but power is disconnected or has failed on a low-priority port
Blinking amberEnabled but power is disconnected or has failed on a high-priority port
AmberEnabled and a PoE circuit failure is detected
Dual-Purpose Port LEDs
The dual-purpose port LEDs identify the connection as either a copper-based connector or an SFP
module. The ports can autonegotiate, or you can manually configure each dual-purpose port as either
10/100/1000 with copper connectors or as an SFP-module port, but not as both types at the same time.
See Table 1-8 for LED descriptions.
The switch ships with the Secure Digital (SD) flash memory card installed. See Figure 1-1 and
Figure 1-2. You can remove the card from a failed switch and install it in a replacement switch. You do
not have to reconfigure the new switch. See the Replacing the SD Flash Memory Card, page 2-22 for
information.
Power Supply Side
cannot be found
Warning
Be aware that the SD card contains sensitive and security relevant information, including but not
limited to full device configuration information, public and private keys used for SSH and SSL (if those
protocols are enabled), device passwords and others. Access to SD cards for any Cisco CGS switch
should be limited to authorized personnel.
Power Supply Side
The power supply side has the LED panel and two power supply slots for the removable power supplies.
See Figure 1-7 and Figure 1-8.
Figure 1-7Switch with One Power Supply Module
1LED panelPower supply slot 13Power supply slot 2
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Power Supply Side
207230
1
1
Cisco Connected Grid
Switch 2500 Series
PWR-RGD-LOW-DC
PWR-RGD-LOW-DC
Cisco Connected Grid
Switch 2500 Series
213 456789 10 1112
207199
1314
15
Figure 1-8Switch with Both Power Supply Modules
1PSU OK LED
For a description of the PSU OK LED, see Table 1-4 on page 1-9.
Power Supply-Side LEDs
Chapter 1 Product Overview
Figure 1-9Switch LEDs
1SYS (system) 9OUT (alarm output)
2CON (console) 10 PSU1 (power supply 1)
3USB LED11 PSU2 (power supply 2)
4SD (SD flash memory card) 12 PoE
5IN1 (alarm input 1) 13 Express setup button
6IN2 (alarm input 2) 14 Ethernet port
7IN3 (alarm input 3) 15 10/100/1000 port
8IN4 (alarm input 4) 16 SFP port
1
1-12
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1. Only on the Cisco CGS-2520-16S-8PC switch.
For a description of the LEDs, see LEDs, page 1-7.
Power Supply Features
The switch has two slots for power supply modules:
• PWR-RGD-LOW-DC: low-voltage DC (for voltage information, see Tabl e A - 6)
• PWR-RGD-AC-DC: high-voltage AC or DC (for voltage information, see Tab l e A-5)
• PWR-RGD-AC-DC-C: high-voltage AC or DC for China
The switch supports these power supply module combinations:
• Single low-voltage DC
• Single high-voltage AC or DC
• Two high-voltage AC or DC
• Two low-voltage DC
• One high-voltage AC or DC and one low-voltage DC
For information on installing the power supply modules, see Power Supply Installation, page 3-1
Management Options
See Table 1-4 for information on the power supply LEDs.
Management Options
• Device manager
You can use the device manager in the switch memory to manage standalone switches. For
information, see the switch getting started guide and the device manager online help.
• Cisco IOS CLI
You can configure and monitor the switch from the CLI. Connect your management station to the
switch console port or use Telnet from a remote management station. See the switch command
reference on Cisco.com for information.
• CiscoWorks application
The CiscoWorks LAN Management Solution (LMS) is a suite of management tools that simplify the
configuration, administration, monitoring, and troubleshooting of Cisco networks. See the LMS
documentation for information:
The CiscoView device-management application displays a switch image that you can use to view
switch status and performance information and to set configuration parameters. The CiscoView
application (sold separately) can be a standalone application or part of a Simple Network
Management Protocol (SNMP) platform. For information, see the CiscoView documentation:
http://www.cisco.com/en/US/products/sw/cscowork/ps4565/tsd_products_support_series_home.ht
ml
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Management Options
Chapter 1 Product Overview
• Cisco Configuration Engine
The Cisco Configuration Engine automates initial configurations and configuration updates. It
generates device-specific configuration changes, sends them to the device, executes the
configuration changes, and logs the results. For information about Cisco Configuration Engine, see
the software configuration guide on Cisco.com.
• SNMP network management
You can manage switches from a Simple Network Management Protocol (SNMP)-compatible
management station that is running platforms such as HP OpenView or SunNet Manager. The switch
supports a comprehensive set of Management Information Base (MIB) extensions and four Remote
Monitoring (RMON) groups. See the switch software configuration guide on Cisco.com and the
documentation that came with your SNMP application for information.
• Cisco Configuration Professional
Configuration Professional is a software program that you download from Cisco.com and run on
your PC. It offers advanced options for configuring and monitoring multiple devices, including the
Cisco CGS 2520 switches. Configuration Professional is available at no cost:
See the Configuration Professional getting started guide and online help for more information.
• Cisco Security Manager
Cisco Security Manager (Security Manager) manages security policies on Cisco security devices. It
supports integrated provisioning of firewall, IPS, and VPN (site-to-site, remote access, and SSL)
services across devices. For information, see the User Guide for Cisco Security Manager 3.2.2.
• Catalyst Smart Operations
The Smart Install feature provides a single point of management (director) in a network. You can
use it to provide a zero touch image and configuration upgrade of newly deployed switches and
image and configuration downloads for any client switches. For information, see the Cisco Smart Install Configuration Guide on Cisco.com.
The Smartports feature provides user-defined and Cisco-default macros for creating custom switch
configurations to simplify deployment. For information about configuring Smartports, see the
switch software configuration guide on Cisco.com.
Network Configurations
See the switch software configuration guide on Cisco.com for an explanation of network configuration
concepts. The software configuration guide also provides network configuration examples for creating
dedicated network segments that are interconnected through Ethernet connections.
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CHAP T E R
2
Switch Installation
This chapter contains the steps to install the switch. Please read the topics and follow the steps in the
following order:
• Warnings, page 2-1
• Installation Guidelines, page 2-3
• Verifying Switch Operation, page 2-3
• Installing the Switch, page 2-4
• Installing and Removing SFP Modules, page 2-19
• Inserting and Removing the SFP Module Patch Cable, page 2-21
• Replacing the SD Flash Memory Card, page 2-22
• Connecting Devices to the Ethernet Ports, page 2-24
• Where to Go Next, page 2-26
Warnings
Warning
Warning
Warning
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These warnings are translated into several languages in the Regulatory Compliance and Safety
Information for the Cisco CGS 2520 document that ships on the documentation CD.
These warning statements apply to all the switches:
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.
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Read the installation instructions before you connect the system to its power source.
Cisco CGS 2520 Hardware Installation Guide
Statement 43
Statement 1004
2-1
Warnings
Chapter 2 Switch Installation
Warning
Warning
Warning
Warning
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
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
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
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.
Warning
Warning
10/100/1000 Ethernet
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of:
140°F (60°C)
Statement 1047
This equipment is supplied as “open type” equipment. It must be mounted within an enclosure that is
Statement 1044
suitably designed for those specific environmental conditions that will be present and appropriately
designed to prevent personal injury resulting from accessibility to live parts. The interior of the
enclosure must be accessible only by the use of a tool. The enclosure must meet IP 54 or NEMA type
4 minimum enclosure rating standards.
Warning
NoteFor U.S. installations, refer to national electrical code ANSI/NFPA 70.
Installation of the equipment must comply with local and national electrical codes.
Statement 1063
Statement 1074
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Chapter 2 Switch Installation
Installation Guidelines
Warning
To prevent airflow restriction, allow clearance around the ventilation openings to be at least:
1.75 in. (4.4 cm).
Statement 1076
Installation Guidelines
Before installing the switch, verify that these guidelines are met:
• Cabling must be kept away from sources of electrical noise, such as radios, power lines, and
fluorescent lighting fixtures. Make sure that the cabling is away from other devices that might
damage the cables.
• Operating environment is within the ranges listed in Technical Specifications, page A-1
• Relative humidity around the switch does not exceed 95 percent (noncondensing).
• Altitude at the installation site is not higher than 10,000 feet.
• For 10/100 and 10/100/1000 fixed ports, cable lengths from the switch to connected devices are not
more than 328 feet (100 meters).
• For cable lengths for small-form-factor pluggable (SFP)-module connections, see the SFP Module
Cables, page B-4 and the module documentation.
• Airflow around the switch and through the vents is unrestricted. To prevent overheating, the switch
must meet the minimum clearance of 1.75 inches (4.4 cm) at the top and bottom. For clearances
needed for wall mounting, see specifications in Wall-Mounting, page 2-16.
NoteIf the switch is installed in a closed or multirack assembly, take into consideration that the
temperature around the switch might be greater than normal room temperature and that special
accommodations in clearance must be made.
Verifying Switch Operation
Before installing the switch in a rack or on a wall, you should power on the switch and verify that the
switch passes the power-on self-test (POST).
To wire the switch to the power source, see Power Supply Installation, page 3-1
When the switch begins POST, the System LED blinks green, and the other LEDs stay green. When the
switch passes POST, the System LED turns green. The other LEDs turn off and return to their operating
status. If the switch fails POST, the System LED is amber.
NoteContact Cisco Systems immediately if your switch fails POST.
After a successful POST, disconnect the power from the switch. For more information, see Power Supply
Installation, page 3-1 See the Installing the Switch, page 2-4 to install the switch into a rack or onto a
wall.
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Installing the Switch
Installing the Switch
The following installation information is covered in this section:
• Mounting into a Rack, page 2-4
• Wall-Mounting, page 2-16
NoteAfter the switch is mounted onto the rack, connect the power source to the switch. See Power Supply
Installation, page 3-1
Mounting into a Rack
The following mounting procedures are explained in this section:
• .Mounting Brackets, page 2-4
• Attaching Brackets for 19-Inch Racks, page 2-5
• Attaching Brackets for 19-Inch Racks (IP-30 Compliance), page 2-7
Chapter 2 Switch Installation
• Attaching Brackets for 23-Inch Racks, page 2-12
• Attaching Brackets for ETSI Racks, page 2-13
• Mounting the Switch into a Rack, page 2-15
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 the only rack 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.
.Mounting Brackets
Figure 2-1 shows the 19-inch rack mounting brackets.
Figure 2-119-inch Mounting Brackets
Statement 1008
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Chapter 2 Switch Installation
Figure 2-2 shows the 23-inch rack mounting brackets.
Figure 2-223-inch Mounting Brackets
Figure 2-3 shows the ETSI rack mounting brackets.
Figure 2-3ETSI Mounting Brackets
Installing the Switch
Attaching Brackets for 19-Inch Racks
Figure 2-4 and Figure 2-5 shows the 19-inch rack mounting bracket locations on the switch for
cable-side mounting and power-side mounting onto an 19-inch rack.
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-4Attaching Brackets for 19-Inch Racks
2-6
1Mid-mount position3Cable-side mounting position
2Phillips flat-head screws4Power supply-side mounting position
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Chapter 2 Switch Installation
Figure 2-5Attaching Brackets for 19-Inch Racks
Installing the Switch
1Phillips flat-head screws3Power supply-side mounting position
2Cable-side-mounting position
Attaching Brackets for 19-Inch Racks (IP-30 Compliance)
Before installing the mounting brackets, you need to install the rubber plugs into the unused mounting
holes of the switch chassis. You can get the appropriate rubber plugs by ordering kit CGS-2520-IP30KIT.
Follow the procedure below to install the rubber plugs.
Step 1Determine whether you will install using the mid-mount, cable-side, or power supply-side positioning
by identifying your bracket mounting positions shown in Figure 2-9 and Figure 2-10.
Step 2Insert the rubber plugs into the appropriate holes according to your mount position as shown in
Figure 2-6 and Figure 2-7. Follow the same procedure for both sides of the switch.
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-6Inserting the Rubber Plugs
2-8
1Rubber plug3Cable-side mounting position
2Mid-mount position4Power supply-side mounting position
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Chapter 2 Switch Installation
Figure 2-7Inserting the Rubber Plugs
Installing the Switch
Step 3
1Rubber plug3Power supply-side mounting position
2Cable-side mounting position
Use a screwdriver or pen to completely push in the rubber plugs. Figure 2-8 shows a close-up of the rubber
plug and how they are inserted into the mounting holes.
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-8Inserting the Rubber Plugs (detail)
2-10
1Rubber plug3Screwdriver
2Switch
Step 4Install the brackets on both sides of the switch as shown in Figure 2-9 and Figure 2-10.
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Chapter 2 Switch Installation
Figure 2-9Attaching Brackets for 19-Inch Racks
Installing the Switch
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1Mid-mount position3Cable-side mounting position
2Phillips flat-head screws4Power supply-side mounting position
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-10Attaching Brackets for 19-Inch Racks
1Phillips flat-head screws3Power supply-side mounting position
2Cable-side-mounting position
Note
For IP-30 compliance: If you use 23-inch brackets or ETSI brackets, you can insert the rubber
plugs in the same holes as shown in Figure 2-6 and Figure 2-7 before installing the brackets.
Attaching Brackets for 23-Inch Racks
Figure 2-11 shows the 23-inch rack mounting bracket locations on the switch for cable-side mounting
and power-side mounting onto a 23-inch rack.
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Chapter 2 Switch Installation
Figure 2-11Attaching Brackets for 23-Inch Racks
Installing the Switch
1Phillips flat-head screws3Power supply-side mounting position
2Cable-side-mounting position
NoteFor IP-30 compliance: If you use 23-inch brackets, you can insert the rubber plugs in the same holes as
shown in Figure 2-7 or Figure 2-8 before installing the brackets.
Attaching Brackets for ETSI Racks
Figure 2-12 shows the mounting bracket locations on the switch for cable-side mounting and power-side
mounting onto an ETSI rack.
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-12Attaching Brackets for ETSI Racks
2-14
1Phillips flat-head screws3Power supply-side mounting position
2Cable-side mounting position
NoteFor IP-30 compliance: If you use ETSI brackets, you can insert the rubber plugs in the same holes as
shown in Figure 2-7 or Figure 2-8 before installing the brackets.
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Chapter 2 Switch Installation
Mounting the Switch into a Rack
After you attach the brackets onto the switch, use the four supplied number-12 Phillips machine screws
to attach the brackets to the rack as shown in Figure 2-13. (Brackets for the 19-inch rack shown in this
example.)
NoteWe recommend attaching the cable guide to prevent the cables from obscuring the LED panels on the
devices in the rack. Use the supplied black screw shown in Figure 2-13 [6] to attach the cable guide to
the left or right bracket.
Figure 2-13Rack Mounting
Installing the Switch
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1Mid-mount position4Phillips machine screws
2Cable screw5Power supply-side mounting position
3Cable-side mounting position6Cable guide
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Installing the Switch
Wall-Mounting
The following steps are covered in this section:
• Attaching Brackets for Wall Mounting, page 2-16
• Wall-Mounting (for IP-30 Compliance), page 2-17
Chapter 2 Switch Installation
Warning
If the switch is wall-mounted in an enclosure allow for these minimum clearances:
• Sides of switch (facing up and facing down): 3.75 in. (9.52 cm)
• Port side 3.0 in. (7.62 cm)
• Power supply side: 5.25 in. (13.33 cm)
• Cover side (side not facing wall): 1.75 in. (4.44 cm)
• Base side (facing wall): 0 in. (0 cm)
Attaching Brackets for Wall Mounting
Follow these steps to mount the switch onto a wall.
Step 1Insert the rubber plugs into the appropriate holes. Follow the same procedure for the other side of the
switch.
Step 2Use a screwdriver or pen to completely push in the rubber plugs (see Figure 2-8).
Step 3Install the brackets onto both sides of the switch (see Figure 2-16).
Step 4Secure the bracket and switch to the wall using the screws provided.
Figure 2-14 shows how to wall-mount the switch onto a wall.
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Chapter 2 Switch Installation
Figure 2-14Attaching 19-inch Rack Brackets for Wall Mounting
Installing the Switch
1Phillips truss-head screws
Wall-Mounting (for IP-30 Compliance)
Follow these steps to mount the switch onto a wall and conform to IP-30 Compliance regulations.
Step 1Insert the rubber plugs into the appropriate holes (see Figure 2-15). Follow the same procedure for the
other side of the switch.
Step 2Use a screwdriver or pen to completely push in the rubber plugs (see Figure 2-8).
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Installing the Switch
Chapter 2 Switch Installation
Figure 2-15Inserting the Rubber Plugs into the Switch Holes
Step 3
1Rubber plug
Install the brackets on both sides of the switch (see Figure 2-16).
Figure 2-16Attaching 19-inch Rack Brackets
2-18
1Phillips truss-head screws
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Chapter 2 Switch Installation
Installing and Removing SFP Modules
Small-form-factor pluggable (SFP) modules provide the uplink optical interfaces, laser send (TX) and
laser receive (RX).
When installing or removing SFP modules, observe these guidelines:
• Removing and installing an SFP module can shorten its useful life. Do not remove and insert any
module more often than is absolutely necessary.
• To prevent ESD damage, follow your normal board and component handling procedures when
connecting cables to the switch and other devices.
Installing and Removing SFP Modules
Warning
CautionDo not remove the dust plugs from the fiber-optic SFP module port or the rubber caps from the
Class 1 laser product.
fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the SFP module
ports and cables from contamination and ambient light.
CautionWe strongly recommend that you not install or remove the SFP module while the fiber-optic cable is
attached to it because of the potential damage to the cables, to the cable connector, or to the optical
interfaces in the SFP module. Disconnect the cable before you remove or install an SFP module.
Installing SFP Modules
This section describes how to install Small Form Factor pluggable (SFP) modules. SFP modules are
inserted into the SFP modules connected to the switch.
Step 1Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.
Step 2Find the send (TX) and receive (RX) markings on the module top.
NoteOn some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows
that show the direction (send or receive) of the connection.
Statement 1008
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Step 3If the module has a bale-clasp latch, move it to the open, unlocked position.
Step 4Align the module in front of the slot opening, and insert until you feel the connector snap into place.
Step 5If the module has a bale-clasp latch, close it to lock it into place.
Step 6For fiber-optic SFP modules, remove the dust plugs and store them in a clean location for reuse.
CautionDo not remove the dust plugs from the fiber-optic SFP module port until you are ready to
insert the SFP cables.
Step 7Connect the SFP cables.
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Installing and Removing SFP Modules
Figure 2-17Installing an SFP Module
Removing SFP Modules
Chapter 2 Switch Installation
This section describes how to replace small-form-factor pluggable (SFP) modules. SFP modules are
inserted into the SFP modules connected to the switch.
Step 1Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.
Step 2Disconnect the cables from the SFP module ports. For reattachment, note which cable connector plug is
send (TX) and which is receive (RX).
NoteOn some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows
that show the direction (send or receive) of the connection.
CautionDo not remove cables from the fiber-optic SFP module ports until you are ready to insert the
dust plugs.
Step 3Insert a dust plug into the optical ports of the SFP module.
Step 4If the module has a bale-clasp latch, pull the bale out and down to eject it. If the latch is obstructed and
you cannot use your finger, use a small, flat-blade screwdriver or other long, narrow instrument.
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Chapter 2 Switch Installation
Figure 2-18Removing a Bale Clasp Latch SFP Module
Inserting and Removing the SFP Module Patch Cable
Step 5
Step 6Place the module in an anti-static bag or other protective environment.
Grasp the SFP module, and carefully remove it from the slot.
Inserting and Removing the SFP Module Patch Cable
Step 1Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.
Step 2Insert the SFP module patch cable into the slot until you feel the connector on the cable snap into place
at the rear of the slot (see Figure 2-19).
Figure 2-19Inserting an SFP Module Patch Cable
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Step 3Repeat these steps for the second switch that you want to connect to the first switch.
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Replacing the SD Flash Memory Card
Figure 2-20Connecting Two Switches with an SFP Module Patch Cable
Chapter 2 Switch Installation
Removing the SFP Module Patch Cable
To remove an SFP module patch cable from the SFP module slot, release the connector, and pull it from
the slot.
Replacing the SD Flash Memory Card
Warning
Step 1Locate the Secure Digital (SD) flash memory card slot on the cable-side of the switch.
Step 2Use a number 1 Phillips screwdriver to loosen the captive screw (see Figure 2-21).
Be aware that the SD card contains sensitive and security relevant information, including but not
limited to full device configuration information, public and private keys used for SSH and SSL (if those
protocols are enabled), device passwords and others. Access to SD cards for any Cisco CGS switch
should be limited to authorized personnel.
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Chapter 2 Switch Installation
Figure 2-21Loosening the Captive Screw
Replacing the SD Flash Memory Card
Step 3
Pull the cover open, and pull the cover tabs from the hinge (see Figure 2-22).
Figure 2-22Removing the SD Slot Cover
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Step 4
Gently push the SD flash memory card to eject it (see Figure 2-23). Place it in an antistatic bag to protect
it from static discharge.
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Connecting Devices to the Ethernet Ports
Chapter 2 Switch Installation
.
Step 5Push the replacement card (upside down) into the slot, and press it firmly in place. The card is keyed so
Figure 2-23Removing the SD Flash Memory Card
that you cannot insert it the wrong way.
Step 6Begin replacing the cover by placing the SD slot cover tabs into the hinge.
Step 7Close the cover, and use a ratcheting torque number 1 Phillips screwdriver to torque the screw to
4.5 in-lb.
Table 2-1 Ethernet Cables (Auto-MDIX Disabled)
DeviceCrossover Cable
1
Switch to switchYesNo
Switch to hubYesNo
Switch to computer or serverNoYes
Switch to routerNoYes
Switch to IP phoneNoYes
1. 100BASE-TX and 1000BASE-T traffic requires twisted four-pair, Category 5, Category 5e, or Category 6 cable. 10BASE-T
traffic uses Category 3 or Category 4 cable.
Connecting Devices to the Ethernet Ports
This section covers the following procedures:
• Connecting to the 10/100 and 10/100/1000 Ports, page 2-25
• Connecting to the 10/100 PoE Ports, page 2-25
Straight-Through Cable
1
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Chapter 2 Switch Installation
Connecting to the 10/100 and 10/100/1000 Ports
The 10/100 and 10/100/1000 Ethernet ports use standard RJ-45 connectors with Ethernet pinouts. The
maximum cable length is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires
Category 5, Category 5e, or Category 6 UTP cable. The 10BASE-T traffic uses Category 3 or Category
4 cable.
The auto-negotiation feature is enabled by default on the switch. At this setting, the switch ports
configure themselves to operate at the speed of the attached device. If the device does not support
auto-negotiation, you can set the switch port speed and duplex parameters. To maximize performance,
either let the ports autonegotiate both speed and duplex, or set the port speed and duplex parameters on
both ends of the connection.
For simplified cabling, the automatic medium-dependent interface crossover (auto-MDIX) feature is
enabled by default. With auto-MDIX enabled, the switch detects the required cable type for copper
Ethernet connections and configures the interface accordingly. Therefore, you can use either a crossover
or a straight-through cable for connections to a 10/100/1000 Ethernet port, regardless of the type of
connected device.
See the switch software configuration guide or the switch command reference on Cisco.com for more
information about auto-negotiation and auto-MDIX.
Connecting Devices to the Ethernet Ports
If auto-MDIX is disabled, use the guidelines in Table 2-1 to select the cable for connecting the
10/100/1000 Ethernet ports to other devices.
See the Connector and Cable Specifications, page B-1 for cable-pinout descriptions.
Figure 2-24Connecting to an Ethernet Port
Connecting to the 10/100 PoE Ports
The Cisco CGS-2520-16S-8PC switch (and the CGS-2520-16S-8PC-C switch) 10/100 PoE ports have
the same auto-negotiation settings and cabling requirements as those in the Connecting to the 10/100 and
10/100/1000 Ports, page 2-25. These ports provide PoE power.
See the PoE Ports, page 1-3 for information on the cables and connectors.
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The ports provide PoE support for devices compliant with IEEE 802.3af and also provide Cisco
prestandard PoE support for Cisco IP Phones and Cisco Aironet Access Points.
On a per-port basis, you can control whether or not a port automatically provides power to a connected
IP phone or an access point.
To access an advanced PoE planning tool, use the Cisco Power Calculator on Cisco.com:
http://tools.cisco.com/cpc/launch.jsp
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Where to Go Next
Chapter 2 Switch Installation
You can use this application to calculate the power supply requirements for a specific PoE configuration.
The results show output current, output power, and heat dissipation.
Warning
CautionCategory 5e and Category 6 cables can store high levels of static electricity. Always ground the cables
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.
to a suitable and safe earth ground before connecting them to the switch or other devices.
Where to Go Next
After the switch is mounted onto the rack, do the following:
• Wire the switch to a power source (see Power Supply Installation, page 3-1)
• For configuration instructions about the CLI setup program, see Configuring the Switch with the
CLI Setup Program, page C-1
• You can use the default configuration installed on the switch or use any of the management options
described in the Management Options, page 1-13 to change the switch settings
Statement 1072
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CHAP T E R
3
Power Supply Installation
This chapter describes how to remove and install a new or replacement power supply. Your switch ships
with at least one installed power supply module (AC or DC, depending on your order). The power supply
modules are field-replaceable units (FRUs) and are hot-swappable.
For translations of the safety warnings in this chapter, see the Regulatory Compliance and Safety
Information for the Cisco CGS 2520 on the documentation CD and also on Cisco.com.
• Power Supply Modules, page 3-1
• Installation Guidelines, page 3-3
• Grounding the Switch, page 3-4
• Installing the Power Supply Module in the Switch, page 3-6
• Wiring the Power Source, page 3-7
• Removing the Power Supply Module, page 3-12
Power Supply Modules
For information on the power supply modules, see the Power Supply Features, page 1-13.
Table 3-1Power Supply Modules
ModelDescription
PWR-RGD-LOW-DC Low-voltage DC. For voltage information, see Table A-6 on page A-4
PWR-RGD-AC-DCHigh-voltage AC or DC. For voltage information, see Table A-5 on page A-3
PWR-RGD-AC-DC-C(For China) High-voltage AC or DC. For voltage information, see Table A-5
on page A-3
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Power Supply Module Installation
207215
1
2
3
207232
1
2
3
PWR-RGD-LOW-DC
Figure 3-1PWR-RGD-AC-DC Power Supply Module
1Power supply module3Captive screw
2PSU OK LED
Chapter 3 Power Supply Installation
Figure 3-2PWR-RGD-LOW-DC Power Supply Module
1Power supply module3Captive screw
2PSU OK LED
For a description of the PSU OK LEDs, see the Power Supply Module LEDs, page 1-9.
Power Supply Module Installation
• Installation Guidelines, page 3-3
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3-2
• Installing a Power Supply Module, page 3-3
• Wiring the Power Source, page 3-7
• Removing the Power Supply Module, page 3-12
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Chapter 3 Power Supply Installation
Installation Guidelines
Observe these guidelines when removing or installing a power supply module:
A power supply module that is only partially connected to the switch disrupts the system operation.
Power Supply Module Installation
Warning
NoteYou can order the blank cover (part number RPS-CG-COVER=).
Warning
Warning
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement 1029
Do not reach into a vacant slot while installing or removing a module. Exposed circuitry is an energy
hazard.
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Statement 206
Installing a Power Supply Module
This procedure is for installing a power supply module in the PSU1 or PSU2 slot.
Warning
Warning
CautionEquipment installation must comply with local and national electrical codes.
The covers are an integral part of the safety design of the product. Do not operate the unit without the
covers installed.
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1077
Statement 1028
Equipment That You Need
• Ratcheting torque flathead screwdriver that exerts up to 15-inch pound (in-lb) of torque
• Ring, spade, or flanged spade terminal
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Power Supply Module Installation
–
–
–
NoteFor IP-30 compliance:
• Crimping tool (such as Thomas & Bett part number WT2000, ERG-2001)
• 6-gauge copper ground wire (such as Belden part number 9906)
• 12-AWG wire (minimum) for the low-voltage power supply module and 16-AWG (minimum) wire
for the high-voltage power supply module
• For power source connections, use wires rated for at least 194°F (90°C).
Chapter 3 Power Supply Installation
Ring terminal (such as Tyco part number 2-34158-1 for 16–14 AWG or 2-34852-1 for 12–10
AWG w ir e )
Spade terminal (such as Tyco part number 54367-2 for 16–14 AWG wire)
Flanged spade terminal (such as Tyco part number 2-324165-1 for 16–14 AWG wire or
1-324581-1 for 12–10 AWG wire)
Use the 16-14 AWG wire and appropriate terminals for the AC or high-voltage DC power supply
Use the12-10 AWG wire and appropriate terminals for the low-voltage DC power supply
• UL- and CSA-rated style 1007 or 1569 twisted-pair copper wire (such as Belden part number 9318)
• Wire-stripping tools for stripping 6-, 10-, 12-, 14-, and 16-gauge wires.
• Number-2 Phillips screwdriver
• Flat-blade screwdriver
Grounding the Switch
Follow the grounding procedures at your site and observe these warnings:
Warning
Warning
CautionFollow the grounding procedure instructions, and use a UL-listed lug (included with the switch) for
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.
When installing or replacing the unit, the ground connection must always be made first and
disconnected last.
number-6 AWG wire and 10-32 ground-lug screws.
Statement 1024
Statement 1046
3-4
NoteYou can use the grounding lug to attach a wrist strap for ESD protection during servicing.
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Chapter 3 Power Supply Installation
0.25 in. (6.3 mm) ± 0.02 in. (0.5 mm)
280938
100-240V
V~, 50-60Hz,2A
V
~, 50-60
~, 50-60
Follow these steps to install a dual-hole lug on the switch. Be sure to follow any grounding requirements
at your site.
Step 1Use a Phillips screwdriver or a ratcheting torque screwdriver with a Phillips head to remove the ground
screw from the cable side of the switch. You need the screw in Step 4.
Step 2Strip the 6-gauge ground wire to 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm) (see Figure 3-3). Stripping
more than the recommended amount of wire can leave exposed wire from the connector.
Figure 3-3Stripping the Ground Wire
Step 3Insert the ground wire into the terminal lug, and crimp the terminal to the wire (see Figure 3-4).
Figure 3-4Crimping the Terminal Lug
Power Supply Module Installation
Step 4
Slide the ground screw from Step 1 through the terminal lug. Insert the ground screws into the opening
on the cable side.
Figure 3-5Attaching the Terminal Lug
1 Dual-hole terminal lug
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Step 5Use a ratcheting torque screwdriver to tighten the ground screws to 30 in-lb (± 2 in-lb).
Step 6Attach the other end of the ground wire to a grounded bare metal surface, such as a ground bus or a
grounded bare rack.
Installing the Power Supply Module in the Switch
Step 1We recommend that power be off at the AC or DC circuits. Locate the circuit breakers, turn them OFF,
and tape them in the OFF position.
NoteIf the power is not off at the AC or DC circuit breaker, do not touch the power-input terminal.
Step 2Use a Phillips screwdriver to loosen the two captive screws of the blank power supply module and gently
pull it out. See Figure 3-6 and Figure 3-7.
Chapter 3 Power Supply Installation
Figure 3-6Loosen the Screws on the Power Supply Blank
Figure 3-7Remove the Power Supply Blank
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Step 3
Insert the power supply module into the slot, and gently push it in (see Figure 3-8). The power supply
module should be flush with the switch.
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Chapter 3 Power Supply Installation
Figure 3-8Insert the Power Supply Module
Power Supply Module Installation
207233
Step 4
Use a ratcheting torque screwdriver to torque each screw to 8–10 in-lb.
Wiring the Power Source
Before you wire the power source, review the warnings in this section:
Warning
Warning
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than:
AC: 5 A, DC: 15 A
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
Statement 1022
Only trained and qualified personnel should be allowed to install or replace this equipment.
Statement 1030
Statement 1005
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Warning
Hazardous voltage or energy may be present on power terminals. Always replace cover when
terminals are not in service. Be sure uninsulated conductors are not accessible when cover is in
place.
Statement 1086
Step 1Locate the AC and DC circuit breakers, turn them OFF, and tape them in the OFF position.
NoteDo not connect the switch to a power source that has an ON/OFF switch.
Step 2Use a Phillips screwdriver to loosen the captive screw on the power-input terminal, and open the cover.
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100-240V~, 50-60Hz, 2A
100-240V~, 50-60Hz, 2A
5
2A2A
10A
10A
5
Figure 3-9Opening the Power-Input Terminal Cover
Chapter 3 Power Supply Installation
The terminal screws labels are on the power-input terminal cover (see Figure 3-10).
Figure 3-10Power-Input Terminal
1Line connection for high-voltage AC (PSU1)8Line connection for high-voltage AC (for
NoteThe power supply module 1 connection is labeled PSU1, and the power supply module 2 connection is
labeled PSU2. Make sure that you connect the wires to the correct terminal screws.
Step 3Use twisted-pair copper wire (14- to 18-AWG) to connect from the power-input terminal to the power
source.
NoteUse 12-AWG (minimum) for the low-voltage DC power supply module. Use 16-AWG
(minimum) for the high-voltage AC or DC power supply module.
Step 4Strip each of the two wires to 0.25 inch (6.3 mm) ± 0.02 inch (0.5 mm). Do not strip more than 0.27 inch
(6.8 mm) of insulation from the wire. Stripping more than the recommended amount of wire can leave
exposed wire from the connector after installation.
Step 5
Figure 3-11Stripping the Input Power Source Wire
Insert the wire into a spade terminal, and crimp the it to the wire. You can also use a ring or flanged spade
terminal as listed in the Equipment That You Need, page 3-3.
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Figure 3-12Crimping the Spade Terminal Lug
Chapter 3 Power Supply Installation
Step 6
Loosen the terminal screw, and slide the terminal under the screw and washer (see Figure 3-13 and
Figure 3-14).
NoteUse the appropriate terminal screws, depending on whether you are installing a high-voltage (AC or DC)
or a low-voltage (DC) power supply.
Step 7AC power connection:
Connect the line wire into the terminal screw labeled L and the neutral wire into the terminal screw
labeled N.
Make sure that you cannot see any wire lead. Only wire with insulation should extend from the terminal
screw.
Figure 3-13Connecting the Wires to the High-Voltage AC Power (PSU1)
100-240V~, 50-60Hz, 2.2A
100-240V~, 50-60Hz, 2.2A
3-10
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Chapter 3 Power Supply Installation
C
25
20
DC power connection:
Connect the positive wire into the terminal screw labeled +, and the negative wire into the terminal screw
labeled –.
Make sure that you cannot see any wire lead. Only wire with insulation should extend from the terminal
screw.
NoteIf you have a low-voltage DC power supply module, connect the wires to the terminals labeled Lo. If you
have a high-voltage DC power supply module, connect the wires to the terminals labeled Hi.
Figure 3-14Connecting the Wires to the Low-Voltage DC Power (PSU2)
Power Supply Module Installation
207428
Step 8Torque the captive screws (above the wires) to 8.5 in-lb (± 0.5 in-lb).
Step 9AC Power:
Connect the other end of the line wire (the one connected to L) to the line terminal on the AC-power
source, and connect the other end of the neutral wire (the one connected to N) to the neutral terminal on
the AC power source.
DC power:
Connect the other end of the positive wire (the one connected to +) to the positive terminal on the
DC-power source, and connect the other end of the negative wire (the one connected
to –) to the negative terminal on the DC power source.
Step 10Close the power-input terminal cover. Use a ratcheting torque screwdriver to torque the screw to 6–8
in-lb.
Step 11Turn on the power at the AC or DC circuit, verify that the PSU1 or PSU2 LED on the switch and PSU
OK LED on the power supply module are green.
Step 12If you have two power supplies, repeat Step 1 through Step 11. See the switch software guide for
information on how to configure the power supply settings.
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Removing the Power Supply Module
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Removing the Power Supply Module
The power supply modules are hot-swappable. By removing the power supply modules, you can power
off the switch without disconnect the wiring from the power-input terminal.
Step 1We recommend that power be OFF at the AC or DC circuits. Locate the circuit breakers, turn them OFF
and tape them in the OFF position.
NoteIf the power is not off at the AC or DC circuit breaker, do not touch the power-input terminal.
Step 2Verify that the PSU LED and PSU OK LED is blinking red or is off.
Step 3Use a Phillips screwdriver to loosen the captive screws that secure the power supply module to the switch
(see Figure 3-15).
Chapter 3 Power Supply Installation
Warning
Hot surface.
Statement 1079
Figure 3-15Removing the Screws
Step 4Remove the power supply module from the power slot. The power supply module might be hot (see
Figure 3-16).
Step 5Install a new power supply module or a blank cover.
Figure 3-16Removing the Power Supply Module
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Switch 2500 Series
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Chapter 3 Power Supply Installation
CautionTo prevent exposure to hazardous voltages and to contain electromagnetic interference (EMI), either a
power supply module or a blank cover must be in each power supply module slot at all times. You can
order the blank cover (part number RPS-CG-COVER=).
Removing the Power Supply Module
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Removing the Power Supply Module
Chapter 3 Power Supply Installation
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Troubleshooting
This chapter contains the following topics:
• Diagnosing Problems, page 4-1
• Resetting the Switch to the Factory Default Settings, page 4-5
• Finding the Switch Serial Number, page 4-5
Diagnosing Problems
The switch LEDs provide troubleshooting information about the switch. They show POST failures,
port-connectivity problems, and overall switch performance. You can also get statistics from the device
manager, the CLI, or an SNMP workstation. See the software configuration guide, the switch command
reference guide on Cisco.com, or the documentation that came with your SNMP application for details.
CHAP T E R
4
Switch POST Results
See the Verifying Switch Operation, page 2-3 for information on POST.
NotePOST failures are usually fatal. Contact your Cisco technical support representative if your switch does
not pass POST.
Switch LEDs
Look at the port LEDs information when troubleshooting the switch. See LEDs, page 1-7 for a
description of the LED colors and their meanings.
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Diagnosing Problems
Switch Connections
Bad or Damaged Cable
Always examine the cable for marginal damage or failure. A cable might be just good enough to connect
at the physical layer, but it could corrupt packets as a result of subtle damage to the wiring or connectors.
You can identify this problem because the port has many packet errors or it constantly flaps (loses and
regains link).
• Exchange the copper or fiber-optic cable with a known good cable.
• Look for broken or missing pins on cable connectors.
• Rule out any bad patch panel connections or media convertors between the source and the
destination. If possible, bypass the patch panel, or eliminate media convertors
(fiber-optic-to-copper).
• Try the cable in another port to see if the problem follows the cable.
Ethernet and Fiber-Optic Cables
Chapter 4 Troubleshooting
Link Status
Make sure that you have the correct cable:
• For Ethernet, use Category 3 copper cable for 10 Mb/s UTP connections. Use either Category 5,
Category 5e, or Category 6 UTP for 10/100 or 10/100/1000 Mb/s connections.
• Verify that you have the correct fiber-optic cable for the distance and port type. Make sure that the
connected device ports match and use the same type encoding, optical frequency, and fiber type.
• Determine if a copper crossover cable was used when a straight-through was required or the reverse.
Enable auto-MDIX on the switch, or replace the cable. See Tab le 2-1 for recommended Ethernet
cables.
Verify that both sides have link. A broken wire or a shutdown port can cause one side to show link even
though the other side does not have link.
A port LED that is on does not guarantee that the cable is functional. It might have encountered physical
stress, causing it to function at a marginal level. If the port LED does not turn on:
• Connect the cable from the switch to a known good device.
• Make sure that both ends of the cable are connected to the correct ports.
• Verify that both devices have power.
• Verify that you are using the correct cable type. See Connector and Cable Specifications, page B-1
for information.
• Look for loose connections. Sometimes a cable appears to be seated but is not. Disconnect the cable,
and then reconnect it.
10/100 and 10/100/1000 Port Connections
A port appears to malfunction:
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Chapter 4 Troubleshooting
• Verify the status of all ports. See Table 1-8 on page 1-10 for descriptions of the LEDs and their
meanings.
• Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or
shut down. Re-enable the port if necessary.
• Verify the cable type. See Connector and Cable Specifications, page B-1
10/100 PoE Port Connections
A powered device connected to a PoE port does not receive power:
• Verify the status of all the ports. See Table 1-8 for descriptions of the LEDs and their meanings.
• Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or
shutdown. Re-enable the port if necessary.
• Verify the cable type. Many legacy powered devices, including older Cisco IP phones and access
points that do not fully support IEEE 802.3af might not support PoE when connected to the switch
by a crossover cable. Replace the crossover cable with a straight-through cable.
Diagnosing Problems
CautionNoncompliant cabling or powered devices can cause a PoE port fault. Use only compliant cabling to
SFP Module
Interface Settings
connect Cisco prestandard IP Phones, and wireless access points, or IEEE 802.3af-compliant devices.
Use only Cisco SFP modules. Each Cisco module has an internal serial EEPROM that is encoded with
security information. This encoding verifies that the module meets the requirements for the switch.
• Inspect the SFP module. Exchange the suspect module with a known good module.
• Verify that the module is supported on this platform. (The switch release notes on Cisco.com list the
SFP modules that the switch supports.)
• Use the show interfaces privileged EXEC command to see if the port or module is error-disabled,
disabled, or shutdown. Re-enable the port if needed.
• Make sure that all fiber-optic connections are clean and securely connected.
Verify that the interface is not disabled or powered off. If an interface is manually shut down on either
side of the link, it does not come up until you re-enable the interface. Use the show interfaces privileged
EXEC command to see if the interface is error-disabled, disabled, or shut down on either side of the
connection. If needed, re-enable the interface.
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Ping from the directly connected switch first, and then work your way back port by port, interface by
interface, trunk by trunk, until you find the source of the connectivity issue. Make sure that each switch
can identify the end device MAC address in its Content-Addressable Memory (CAM) table.
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Diagnosing Problems
Spanning Tree Loops
STP loops can cause serious performance issues that look like port or interface problems.
A unidirectional link can cause loops. It occurs when the traffic sent by the switch is received by the
neighbor, but the traffic from the neighbor is not received by the switch. A broken cable, other cabling
problems, or a port issue could cause this one-way communication.
You can enable UniDirectional Link Detection (UDLD) on the switch to help identify unidirectional link
problems. For information about enabling UDLD on the switch, see the “Understanding UDLD” section
in the switch software configuration guide on Cisco.com.
Switch Performance
Speed, Duplex, and Auto-Negotiation
Port statistics that show a large amount of alignment errors, Frame Check Sequence (FCS), or late
collisions errors, might mean a speed or duplex mismatch.
A common issue occurs when duplex and speed settings are mismatched between two switches, between
a switch and a router, or between the switch and a workstation or server. Mismatches can happen when
manually setting the speed and duplex or from auto-negotiation issues between the two devices.
To maximize switch performance and to ensure a link, follow one of these guidelines when changing the
duplex or the speed settings.
Chapter 4 Troubleshooting
• Let both ports autonegotiate both speed and duplex.
• Manually set the speed and duplex parameters for the interfaces on both ends of the connection.
• If a remote device does not autonegotiate, use the same duplex settings on the two ports. The speed
parameter adjusts itself even if the connected port does not autonegotiate.
Auto-Negotiation and Network Interface Cards
Problems sometimes occur between the switch and third-party network interface cards (NICs). By
default, the switch ports and interfaces autonegotiate. Laptops or other devices are commonly set to
autonegotiate, yet sometimes issues occur.
To troubleshoot auto-negotiation problems, try manually setting both sides of the connection. If this does
not solve the problem, there could be a problem with the firmware or software on the NIC. You can
resolve this by upgrading the NIC driver to the latest version.
Cabling Distance
If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance
from the switch to the connected device meets the recommended guidelines. See the Cables and
Adapters, page B-4.
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Resetting the Switch to the Factory Default Settings
Resetting the Switch to the Factory Default Settings
Follow these steps to return your switch to the factory default settings.
NoteResetting the switch deletes the configuration and reboots the switch.
To reset the switch:
1. At the switch prompt, enter enable, and press Return or Enter.
2. At the Privileged EXEC prompt, switch#, enter setup and press Return or Enter.
The switch displays the prompt to run the initial configuration dialog. See Configuring the Switch with
the CLI Setup Program, page C-1
Finding the Switch Serial Number
If you contact Cisco Technical Assistance, you need to know the switch serial number. Figure 4-1 and
Figure 4-2 show the serial number locations. You can also use the show version privileged EXEC
command to see the switch serial number.
Figure 4-1Serial Number Location for Cisco CGS-2520-24TC and CGS-2520-16S-8PC Switches
Figure 4-2Serial Number Location for the Power Supply Modules
SN: XXXNNNNXXXX
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Finding the Switch Serial Number
Chapter 4 Troubleshooting
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Technical Specifications
This appendix contains the following topics:
• Switch Specifications, page A-1
• Power Supply Module Specifications, page A-4
Switch Specifications
Table A-1Environmental and Physical Specifications
Environmental Ranges
Operating temperature–40 to 140°F (–40 to 60°C)
Storage temperature–40 to 185°F (–40 to 85°C)
Relative humidity5 to 95% (noncondensing)
Operating altitudeUp to 10,000 ft (3049 m)
Storage altitudeUp to 15,000 ft (4570 m)
Thermal spacing1.75 in. (4.4 cm)
Operating shock30 g at 11 ms
Physical Specifications
Weight:
Cisco CGS-2520-24TC
APPENDIX
1
9.1 lb (4.1 kg) (no power supply module)
A
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Cisco CGS-2520-16S-8PC
Dimensions (H x D x W):
Cisco CGS-2520-24TC
Cisco CGS-2520-16S-8PC
1. The maximum operating temperature of the switch varies depending on the type of SFP module that you use. See Table 1-2
on page 1-5 for information on the supported temperature ranges for the SFPs.
10 lb (4.5 kg) (no power supply module)
1.75 x 17.5 x 14.0 in. (4.45 x 44.5 x 35.6 cm)
1.75 x 17.5 x 14.0 in. (4.45 x 44.5 x 35.6 cm)
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Appendix A Technical Specifications
Table A-2Specifications for the Cisco CGS-2520-16S-8PC Switch (PWR-RGD-AC-DC)
Power Requirements
Nominal input voltage100 to 240 VAC, 50 to 60 Hz
100 to 250 VDC
Absolute maximum (short term) input voltage 85 to 265 VAC, 47 to 63 Hz
88 to 300 VDC
Power consumption with one PWR-RGD-AC-DC
power supply module
Power consumption with one PWR-RGD-AC-DC
power supply module (with PoE on 4 ports)
Power consumption with two PWR-RGD-AC-DC
power supply modules
Power consumption with two PWR-RGD-AC-DC
power supply modules (with PoE on 8 ports)
AC: 147 BTUs per hour
43.2 W
Power rating: 0.044 KVA@115 V
DC: 137 BTUs per hour
40.3W
Power rating: 0.0403 KVA@125 VDC
AC: 376 BTUs per hour
110.1 W
Power rating 0.11 KVA@115 V
DC: 375 BTUs per hour
109.8 W
Power rating: 0.109 KVA@125 VDC
AC: 166 BTUs per hour
48.8 W
Power rating: 0.051 KVA@115 V
DC: 167 BTUs per hour
48.9 W
Power rating: 0.0489 KVA@125 VDC
AC: 628 BTUs per hour
184.1 W
Power rating: 0.185 KVA@115 V
DC: 622 BTUs per hour
182.2 W
Power rating: 0.182 KVA@125 VDC
A-2
Table A-3Specifications for the Cisco CGS-2520-16S-8PC Switch (PWR-RGD-LOW-DC)
Power Requirements
Nominal input voltage24 to 60 VDC
Absolute maximum (short term) input voltage18 to 75 VDC
Power consumption with one
PWR-RGD-LOW-DC power-supply module
Power consumption with one
PWR-RGD-LOW-DC power-supply module with
4 ports PoE
Cisco CGS 2520 Hardware Installation Guide
34.2W, 116 BTU per hour, power rating 0.034
KVA @ 24Vdc
106W, 363 BTU per hour, power rating 0.106KVA
@ 24Vdc
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Appendix A Technical Specifications
Table A-3Specifications for the Cisco CGS-2520-16S-8PC Switch (PWR-RGD-LOW-DC)
Power consumption with two
PWR-RGD-LOW-DC power-supply modules
Power consumption with two
PWR-RGD-LOW-DC power-supply modules with
37.1W, 127 BTU per hour, power rating 0.037
KVA @ 24Vdc
181.9W, 622 BTU per hour, power rating 0.182
KVA @ 24Vdc
8 ports PoE
Table A-4Specifications for the Cisco CGS-2520-24TC Switch (PWR-RGD-AC-DC)
Power Requirements
Nominal input voltage100 to 240 VAC, 50 to 60 Hz
100 to 250 VDC
Absolute maximum (short term) input voltage 85 to 265 VAC, 47 to 63 Hz
88 to 300 VDC
Power consumption with one PWR-RGD-AC-DC
power supply module
AC: 102 BTUs per hour
29.8 W
Power rating: 0.031 KVA@115 V
DC: 98 BTUs per hour
28.6 W
Power rating: 0.0286 KVA@125 VDC
Power consumption with two PWR-RGD-AC-DC
power supply modules
AC: 121 BTUs per hour
35.5 W
Power rating: 0.0367 KVA@115 V
DC: 117 BTUs per hour
34.4 W
Power rating: 0.0344 KVA@ 125 VDC
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Table A-5Specifications for the Cisco CGS-2520-24TC Switch (PWR-RGD-LOW-DC)
Power Requirements
Nominal input voltage24 to 60 VDC
Absolute maximum (short term) input voltage18 to 75 VDC
Power consumption with one
PWR-RGD-LOW-DC power-supply module
Power consumption with two
PWR-RGD-LOW-DC power-supply modules
26.8W, 92 BTU per hour, power rating 0.027 KVA
@24Vdc
30.7W, 105 BTU per hour, power rating 0.030
KVA @24Vdc
Cisco CGS 2520 Hardware Installation Guide
A-3
Power Supply Module Specifications
Table A-6Environmental and Physical Specifications for the AC- and DC-Power Supply Modules
Environmental Ranges
Operating temperature–40 to 140°F (–40 to 60°C)
Storage temperature–49 to 185°F (–45 to 85°C)
Relative humidity5 to 95% (noncondensing)
AltitudeUp to 10,000 ft (3049 m)
Physical Specifications
Weig h t
PWR-RGD-AC-DC
PWR-RGD-LOW-DC
Appendix A Technical Specifications
2.55 lb (1.15 kg)
2.5 lb (1.13 kg)
PWR-RGD-AC-DC-C
Dimensions (H x W x D)
PWR-RGD-AC-DC and PWR-RGD-LOW-DC
Table A-7Specifications for the PWR-RGD-AC-DC Power Supply Module
Power Specifications
Maximum output power150 W
Nominal input voltage100 to 240 VAC, 50 to 60 Hz
Absolute maximum (short term) input voltage 85 to 265 VAC, 47 to 63 Hz
Input currentAC: 2.2 to 0.7 A, 85 to 265 VAC
Total input BTUAC: 638 BTUs per hour
2.55 lb (1.15 kg)
1.58 x 7 x 5 in. (4 x 17.8 x 12.7 cm) (without
mounting flanges)
1.58 x 8.15 x 5 in. (4 x 20.7 x 12.7 cm) (with
mounting flanges)
100 to 250 VDC
88 to 300 VDC
DC: 2.5 to 0.6 A, 88 to 300 VDC
DC: 750 BTUs per hour
A-4
Table A-8Specifications for the PWR-RGD-LOW-DC Power Supply Module
Power Specifications
Maximum output power150 W
Nominal input voltage24 to 60 VDC
Absolute maximum (short term) input voltage 18 to 75 VDC
Input current12 to 2.5 A, 18 to 75 VDC
Total output BTU737 BTUs per hour
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H5318
23145678PinLabel
1
2
3
4
5
6
7
8
RD+
RD-
TD+
NC
NC
TD-
NC
NC
Connector and Cable Specifications
This appendix contains the following topics:
• Connector Specifications, page B-1
• Cables and Adapters, page B-4
Connector Specifications
• 10/100 Ethernet Ports, page B-1
• SFP Module Connectors, page B-2
• Dual-Purpose Ports, page B-3
• Alarm Port, page B-3
APPENDIX
B
10/100 Ethernet Ports
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The 10/100 Ethernet ports use standard RJ-45 connectors and Ethernet pinouts with internal crossovers.
These ports have the send (TD) and receive (RD) signals internally crossed so that a twisted-pair
straight-through cable and adapter can be attached.
Figure B-110/100 Port Pinouts
Cisco CGS 2520 Hardware Installation Guide
B-1
Connector Specifications
NoteYou can use the mdix auto interface configuration command in the CLI to enable the automatic
Appendix B Connector and Cable Specifications
When connecting 10/100 ports to devices such as servers, workstations, and routers, you can use a two
or four twisted-pair straight-through cable wired for 10BASE-T and 100BASE-TX. Figure B-5 shows
the two twisted-pair straight-through cable schematics. Figure B-7 shows the four twisted-pair
straight-through cable schematics.
When connecting the ports to other devices, such as switches or repeaters, you can use a two or four
twisted-pair crossover cable. Figure B-6 shows the two twisted-pair crossover cable schematics.
Figure B-8 shows the four twisted-pair crossover cable schematics.
If auto-MDIX is disabled, use a straight-through cable to connect ports when only one port is labeled
with an X. Use a crossover cable to connect ports when both ports are labeled with an X or when both
ports are not labeled with an X.
You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must
use Category 5 (or higher) cabling when connecting to 100BASE-TX-compatible devices.
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch detects the required cable type for copper Ethernet connections and configures the interfaces
accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a
copper 10/100, 10/100/1000, or 1000BASE-T SFP module port on the switch, regardless of the type of
device on the other end of the connection.
SFP Module Connectors
Figure B-2Fiber-Optic SFP Module LC Connector
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Statement 1051
B-2
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Appendix B Connector and Cable Specifications
23145678PinLabel
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
207434
23145678PinAlarm connection
1
2
3
4
5
6
7
8
Alarm 1 input
Alarm 2 input
Normally closed
Alarm 3 input
Alarm 4 input
Normally open
Alarm output common
Alarm input common
Dual-Purpose Ports
The 10/100/1000 Ethernet ports on the dual-purpose ports use RJ-45 connectors.
Figure B-310/100/1000 Port Pinouts
Connector Specifications
Alarm Port
Alarm Ratings
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The alarm port uses an RJ-45 connector. See the Alarm Ports, page 1-6 for more information.
Figure B-4Alarm Port Pinouts
The following lists the alarm rating information
• Alarm Input Electrical Specification: 8V @ 1mA
• Alarm Output Electrical Specification: 30V @ 1A
NoteDue the RJ-45 design (connector pin spacing), the alarm output does not support AC voltage.
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B-3
Cables and Adapters
Cables and Adapters
• SFP Module Cables, page B-4
• Cable Pinouts, page B-6
• Console Port Adapter Pinouts, page B-8
SFP Module Cables
Each port must match the wave-length specifications on each end of the cable, and for reliable
communications, the cable must not exceed the allowable length. Copper 1000BASE-T SFP transceivers
use standard four twisted-pair, Category 5 (or greater) cable at lengths up to 328 feet (100 meters).
NoteThe maximum operating temperature of the switch varies depending on the type of SFP module that you
use. See Table 1-2 on page 1-5 for information on the supported temperature ranges.
Table B-1Fiber-Optic SFP Module Port Cabling Specifications
Appendix B Connector and Cable Specifications
Type of SFP
Module
Wavelength
(nanometers)Fiber Type
Industrial and Rugged SFPs
1000BASE-SX
850MMF62.5/125
(GLC-SX-MMRGD)
1000BASE-LX/
1310SMFG.652
LH
(GLC-LX-MMRGD)
100BASE-LX
1310SMFG.652
(GLC-FE-100L
X-RGD)
100BASE-FX
1310MMF50/125
(GLC-FE-100F
X-RGD)
1000BASE-ZX
1550SMFG.652
(GLC-ZX-SMRGD)
Commercial SFPs
1000BASE-BX
10-D
1490 TX
1310 RX
(GLC-BX-D)
Core
Size/Cladding
Size (micron)
62.5/125
50/125
50/125
62.5/125
SMFG.652
Modal
Bandwidth
(MHz/km)
160
200
400
500
1
Cable Distance
722 feet (220 m)
902 feet (275 m)
1640 feet (500
m)
1804 feet (550
m)
2
—32,810 feet (10
km)
2
—32,810 feet (10
km)
500
500
6,562 feet (2
km)
6,562 feet (2
km)
2
3
—43.4 to 62 miles
(70 to 100 km)
2
—32,810 feet (10
km)
B-4
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Appendix B Connector and Cable Specifications
Table B-1Fiber-Optic SFP Module Port Cabling Specifications (continued)
Cables and Adapters
Type of SFP
Module
100BASE-LX
Wavelength
(nanometers)Fiber Type
1310SMFG.652
(GLC-FE-100L
X)
100BASE-BX
(GLC-FE-100B
1310 TX
1550 RX
SMFG.652
X-D
GLC-FE-100B
X-U)
100BASE-FX
1310MMF50/125
(GLC-FE-100F
X)
100BASE-EX
1310SMFG.652
(GLC-FE-100E
X)
100BASE-ZX
1550SMFG.652—262,480 feet (80
(GLC-FE-100Z
X)
CWDM 1470, 1490,
SMFG.652
1510, 1530,
1550, 1570,
1590, 1610
Core
Size/Cladding
Size (micron)
2
2
62.5/125
2
2
Modal
Bandwidth
(MHz/km)
1
Cable Distance
—32,810 feet (10
km)
—32,810 feet (10
km)
500
500
6,562 feet (2
km)
6,562 feet (2
km)
—131,240 feet (40
km)
km)
—62 miles (100
km)
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B-5
Cables and Adapters
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Router or PC
3 RD+
6 RD–
1 TD+
2 TD–
Appendix B Connector and Cable Specifications
Table B-1Fiber-Optic SFP Module Port Cabling Specifications (continued)
Type of SFP
Module
Wavelength
(nanometers)Fiber Type
Extended temperature SFPs
100BASE
1300MMF or SMF62.2
LX/LH
(SFP-GE-L)
100BASE SX
850MMF62.5
(SFP-GE-S)
100BASE ZX
1550SMF
(SFP-GE-Z)
100BASE EX
1310SMFG.652
(GLC-EX-SMD
)
SMF
Core
Size/Cladding
Size (micron)
50
50
9/10
62.5
50.0
50.0
9/10
8
2
Modal
Bandwidth
(MHz/km)
500
400
500
—
1
Cable Distance
1804 feet (550
m) 1804 feet
(550 m) 1804
feet (550 m)
6.2 miles (10
km)
160
200
400
500
722 feet (220 m)
902 feet (275 m)
1640 feet (500
m)
1804 feet (550
m)
—43.5 miles (70
km)
62.1 miles (100
km)
—24.9 miles (40
km)
NoteWhen the fiber-optic cable span is less than 15.43 miles (25 km), insert a 5-decibel (dB) or 10-dB inline
Cable Pinouts
1. Modal bandwidth applies only to multimode fiber.
2. 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or
low-attenuation SMF; the distance depends on the fiber quality, the number of splices, and the connectors.
3. A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.
optical attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX SFP
module.
Figure B-5Two Twisted-Pair Straight-Through Cable Schematic for 10/100 Ports
B-6
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Appendix B Connector and Cable Specifications
Switch
3 TD+
6 TD–
1 RD+
2 RD–
Switch
3 TD+
6 TD–
1 RD+
2 RD–
1 TP0+
2 TP0-
3 TP1+
6 TP1-
1 TP0+
2 TP0-
3 TP1+
6 TP1-
SwitchRouter or PC
4 TP2+
5 TP2-
7TP3+
8TP3-
4 TP2+
5 TP2-
7TP3+
8TP3-
65271
Figure B-6Two Twisted-Pair Crossover Cable Schematic for 10/100 Ports
Figure B-7Four Twisted-Pair Straight-Through Cable Schematic for 1000BASE-T Ports
Cables and Adapters
Figure B-8Four Twisted-Pair Crossover Cable Schematics for 1000BASE-T Ports
SwitchSwitch
1 TP0+
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
1 TP0+
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
65274
To identify a crossover cable, hold the cable ends side-by-side, with the tab at the back. The wire
connected to pin 1 on the left end should be the same color as the wire connected to pin 3 on the right
end. The wire connected to pin 2 on the left end should be the same color as the wire connected to pin 6
on the right end.
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B-7
Cables and Adapters
Appendix B Connector and Cable Specifications
Figure B-9Identifying a Crossover Cable
Pin 1
Pin 2
Console Port Adapter Pinouts
The console port uses an 8-pin RJ-45 connector, which is described in Table B- 2 and Ta ble B- 3 . If you
did not order a console cable, you need to provide an RJ-45-to-DB-9 adapter cable to connect the switch
console port to a PC console port. You need to provide an RJ-45-to-DB-25 female DTE adapter if you
want to connect the switch console port to a terminal. You can order an adapter (part number
ACS-DSBUASYN=). For console port and adapter pinout information, see Tab l e B -2 and Tab l e B -3.
Table B - 2 lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable, and the console device.
Table B-2Console Port Signaling Using a DB-9 Adapter
Switch Console
Port (DTE)
SignalDB-9 PinSignal
RTS8CT S
DTR6DSR
TxD2RxD
GND5GND
RxD3TxD
DSR4DTR
CTS7RTS
RJ-45-to-DB-9
Terminal Adapter
Pin 3
Pin 6
273807
Console
Device
B-8
Table B - 3 lists the pinouts for the switch console port, RJ-45-to-DB-25 female DTE adapter, and the
console device.
NoteThe RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can order this adapter from
Cisco (part number ACS-DSBUASYN=).
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Appendix B Connector and Cable Specifications
Table B-3Console Port Signaling Using a DB-25 Adapter
Switch
Console
Port (DTE)
SignalDB-25 PinSignal
RJ-45-to-DB-25
Adapter
RTS5CTS
DTR6DSR
TxD3RxD
GND7GND
RxD2TxD
DSR20DTR
CTS4RTS
Cables and Adapters
Console
Device
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B-9
Cables and Adapters
Appendix B Connector and Cable Specifications
B-10
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APPENDIX
Configuring the Switch with the CLI Setup
Program
This appendix provides a command-line interface (CLI) setup procedure for a standalone switch. To set
up the switch by using Express Setup, see the Cisco CGS 2520 Getting Started Guide. Before connecting
the switch to a power source, review the safety warnings in Switch Installation, page 2-1 and Power
Supply Installation, page 3-1
Accessing the CLI Through the Console Port
You can enter Cisco IOS commands and parameters through the CLI. Use one of these options to access
the CLI:
• RJ-45 Console Port, page C-1
• USB Console Port, page C-3
C
RJ-45 Console Port
Step 1Connect the RJ-45-to-DB-9 adapter cable to the 9-pin serial port on the PC. Connect the other end of the
cable to the switch console port.
Step 2Start the terminal-emulation program on the PC or the terminal. The program, frequently a PC
application such as HyperTerminal or ProcommPlus, makes communication between the switch and
your PC or terminal possible.
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C-1
Accessing the CLI Through the Console Port
Figure C-1Connecting the Console Cable
Appendix C Configuring the Switch with the CLI Setup Program
Configure the baud rate and character format of the PC or terminal to match the console port
characteristics:
• 9600 baud
• 8 data bits
• 1 stop bit
• No parity
C-2
• None (flow control)
Step 4Connect power to the switch as described in Power Supply Installation, page 3-1
Step 5The PC or terminal displays the bootloader sequence. Press Enter to display the setup prompt. Follow
the steps in the Completing the Setup Program, page C-7.
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Appendix C Configuring the Switch with the CLI Setup Program
USB Console Port
Step 1If you are connecting the switch USB console port to a Windows-based PC for the first time, install a
USB driver. See Figure C-2.
• Installing the Cisco Microsoft Windows XP USB Driver, page C-4
• Installing the Cisco Microsoft Windows 2000 USB Driver, page C-4
• Installing the Cisco Microsoft Windows Vista USB Driver, page C-5
Figure C-2Connecting the USB Console Cable
2
Accessing the CLI Through the Console Port
1
Cisco CGS 2520
1
2
3
207240
1USB console port3USB port on the PC
2USB cable
Step 2
Connect an USB cable to the PC USB port. Connect the other end of the cable to the switch mini-B
(5-pin-connector) USB console port (see Figure C-2).
Step 3To identify the COM port assigned to the USB console port:
Choose Start > Control Panel > Systems
Click the Hardware tab and choose Device Manager. Expand the Ports section. The assigned COM
port appears in parenthesis at the end of the line with this entry: Cisco USB System Management
Console.
Step 4Start the terminal-emulation program on the PC or the terminal. The program, frequently a PC
application such as HyperTerminal or ProcommPlus, makes communication possible between the switch
and your PC or terminal.
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C-3
Appendix C Configuring the Switch with the CLI Setup Program
Accessing the CLI Through the Console Port
Step 5Configure the COM port.
Step 6Configure the baud rate and character format of the PC or terminal to match the console port
characteristics:
• 9600 baud
• 8 data bits
• 1 stop bit
• No parity
• None (flow control)
Step 7Connect power to the switch as described in Power Supply Installation, page 3-1
Step 8The PC or terminal displays the bootloader sequence. Press Enter to display the setup prompt. Follow
the steps in the Completing the Setup Program, page C-7.
Installing the Cisco Microsoft Windows USB Device Drivers
Installing the Cisco Microsoft Windows XP USB Driver
Step 1Obtain the file Cisco_usbconsole_driver.zip from Cisco.com, and unzip it.
NoteYou can download the driver file from the Cisco.com software download site.
Step 2If using 32-bit Windows XP, double-click the setup.exe file in the Windows_32 folder. If using 64-bit
Windows XP, double-click the setup(x64).exe file in the Windows_64 folder.
Step 3The Cisco Virtual Com InstallShield Wizard begins.
Step 4The Ready to Install the Program window appears. Click Install.
Step 6Connect the USB cable to the PC and to the switch console port. The USB console port LED turns green,
and the Found New Hardware Wizard appears. Follow the instructions to complete the driver installation.
Uninstalling the Cisco Microsoft Windows USB Drivers
Uninstalling the Cisco Microsoft Windows XP and 2000 USB Driver
The driver can be removed with the Windows Add or Remove Programs utility or with the setup.exe file.
Using the Add or Remove Programs Utility
NoteDisconnect the switch console terminal before uninstalling the driver.
Step 1Choose Start > Control Panel > Add or Remove Programs.
Step 2Scroll to Cisco Virtual Com, and click Remove.
Step 3When the Program Maintenance window appears, select the Remove radio button. Click Next.
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C-5
Appendix C Configuring the Switch with the CLI Setup Program
Entering the Initial Configuration Information
Using the Setup.exe Program
NoteDisconnect the switch console terminal before uninstalling the driver.
Step 1Run setup.exe for Windows 32-bit or setup(x64).exe for Windows-64-bit. Click Next.
Step 2The InstallShield Wizard for Cisco Virtual Com appears. Click Next.
Step 3When the Program Maintenance window appears, select the Remove radio button. Click Next.
Step 4When the Remove the Program window appears, click Remove.
Step 5When the InstallShield Wizard Completed window appears, click Finish.
Uninstalling the Cisco Microsoft Windows Vista USB Driver
NoteDisconnect the switch console terminal before uninstalling the driver.
Step 1Run setup.exe for Windows 32-bit or setup(x64).exe for Windows-64bit. Click Next.
Step 2The InstallShield Wizard for Cisco Virtual Com appears. Click Next.
Step 3When the Program Maintenance window appears, select the Remove radio button. Click Next.
Step 4When the Remove the Program window appears, click Remove.
NoteIf a User Account Control warning appears, click Allow - I trust this program to proceed.
Step 5When the InstallShield Wizard Completed window appears, click Finish.
Entering the Initial Configuration Information
To set up the switch, you need to complete the setup program, which runs automatically after the switch
powers on. You must assign an IP address and other configuration information necessary for the switch
to communicate with the local routers and the Internet.
IP Settings
Cisco CGS 2520 Hardware Installation Guide
C-6
You need this information:
• Switch IP address
• Subnet mask (IP netmask)
• Default gateway (router)
• Enable secret password
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Appendix C Configuring the Switch with the CLI Setup Program
• Enable password
• Telnet password
Completing the Setup Program
Follow these steps to complete the setup program and to create an initial configuration for the switch:
Step 1Enter Ye s at these two prompts.
Would you like to enter the initial configuration dialog? [yes/no]: yes
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system.
Would you like to enter basic management setup? [yes/no]: yes
Entering the Initial Configuration Information
Step 2Enter a host name for the switch, and press Return.
On a command switch, the host name is limited to 28 characters and on a member switch to 31
characters. Do not use -n, where n is a number, as the last character in a host name for any switch.
Enter host name [Switch]: host_name
Step 3Enter an enable secret password, and press Return.
The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive,
allows spaces, but ignores leading spaces. The secret password is encrypted, and the enable password is
in plain text.
Enter enable secret: secret_password
Step 4Enter an enable password, and press Return.
Enter enable password: enable_password
Step 5Enter a virtual terminal (Telnet) password, and press Return.
The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores
leading spaces.
Enter virtual terminal password: terminal-password
Step 6(Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts.
You can also configure SNMP later through the CLI. To configure SNMP later, enter no.
Configure SNMP Network Management? [no]: no
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Step 7Enter the interface name (physical interface or VLAN name) of the interface that connects to the
management network, and press Return. For this release, always use vlan1 as that interface.
Enter interface name used to connect to the
management network from the above interface summary: vlan1
Cisco CGS 2520 Hardware Installation Guide
C-7
Entering the Initial Configuration Information
Step 8Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP
address and subnet masks shown below are examples.
Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: 10.4.120.106
Subnet mask for this interface [255.0.0.0]: 255.0.0.0
Step 9Enter Y to configure the switch as the cluster command switch. Enter N to configure it as a member
switch or as a standalone switch.
If you enter N, you can configure the switch as a command switch later through the CLI. To configure
it later, enter no.
Would you like to enable as a cluster command switch? [yes/no]: no
You have completed the initial configuration of the switch, and the switch displays its configuration.
This is an example of the configuration output:
The following configuration command script was created:
hostname switch1
enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1
enable password enable_password
line vty 0 15
password terminal-password
no snmp-server
!
no ip routing
Appendix C Configuring the Switch with the CLI Setup Program
!
interface Vlan1
no shutdown
ip address 10.4.120.106 255.0.0.0
!
interface FastEthernet1/0/1
!
interface FastEthernet1/0/2
interface FastEthernet1/0/3
!
...<output abbreviated>
end
Step 10These choices appear:
[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.
If you want to save the configuration and use it the next time the switch reboots, select
option 2 to save it in NVRAM.
Enter your selection [2]:2
Make your selection, and press Return.
C-8
After you complete the setup program, the switch can run the default configuration that you created. To
change this configuration or to perform other management tasks, enter commands at the
Cisco CGS 2520 Hardware Installation Guide
Switch> prompt.
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INDEX
Numerics
10/100/1000 ports 1-10, B-3
recommended cables 2-24
10/100 ports
described
1-3
10/100 ports PoE 1-3
A
adapter pinouts, terminal
RJ-45-to-DB-25
B-8
RJ-45-to-DB-9 B-8
alarm port
connectors
B-3
input 1-6
output 1-6
autonegotiation
on dual-purpose ports
1-3
troubleshooting 4-4
C
cable guide, attaching 2-15
cable lengths 2-3
cables
crossover
four twisted-pair pinout, 1000BASE-T ports
identifying B-7
two twisted-pair pinout, 10/100 ports B-7
crossover, connecting to B-2
pinouts B-6
recommended 2-24
B-7
See also connectors
SFP module
B-4
straight-through
connecting to
B-2
four twisted-pair pinout, 1000BASE-T ports B-7
two twisted-pair pinout B-6
cable side
10/100 ports
1-3
description 1-2
LEDs 1-7
PoE ports 1-4
Cisco IOS command-line interface 1-13
Cisco IP Phones, connecting to 1-3, 2-24
Cisco Power Calculator 2-25
CiscoView 1-13
CLI 1-13
accessing through the RJ-45 console port C-1
accessing through the USB console port C-3
command-line interface
See CLI
connecting
10/100 PoE ports
2-25
to AC and DC power 3-12
to console port B-8
connection procedures ?? to 2-26
connectors
alarm port
B-3
dual-purpose ports B-3
SFP module connectors B-2
console port
connecting to
B-8
described B-8
overview 1-6
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IN-1
Index
RJ-45 console port 1-6
USB console port 1-6
crossover cable
pinout
four twisted-pair, 1000BASE-T ports
D
device manager
described
diagnosing problems 4-1
dimensions A-4
disconnect device warning 3-7
dual-purpose ports
description
LEDs 1-10
duplex
troubleshooting
1-13
1-4
4-4
E
Ethernet and fiber cable troubleshooting 4-2
G
ground conductor warning 3-4
ground connection warning 3-4
B-7
guidelines 2-3
power supply modules 3-6
rack-mounting 2-4
site requirements 2-3
starting the terminal emulation software C-1, C-3
wall-mounting 2-16
See also procedures
installation warnings
2-1
J
jewelry removal warning 2-1
L
LEDs
1-9, 1-10
alarms
console 1-9
descriptions and locations 1-7 to 1-10
dual-purpose port 1-10
POST results 4-1
PSU 1 and PSU 2 1-9
SD Flash Memory Card 1-10
system 1-8
troubleshooting with 4-1
lightning activity warning 2-1, 3-3
link status troubleshooting 4-2
H
HP OpenView 1-14
I
installation
assigning the IP Address
Cisco USB drivers C-4
grounding procedures 3-4
Cisco CGS 2520 Hardware Installation Guide
IN-2
C-6
M
management options 1-13
mounting
2-4
rack
wall 2-16
O
overcurrent protection warning 3-7
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Index
P
pinouts
10/100 ports
console port B-9
crossover cables
four twisted-pair, 1000BASE-T ports
two twisted-pair 10/100 ports B-7
RJ-45-to-DB-25 terminal adapter B-9
RJ-45-to-DB-9 terminal adapter B-8
SFP module ports B-2
straight-through cables
four twisted-pair 1000BASE-T ports
two twisted-pair B-6
PoE
cable lengths
ports described 1-4
power planning tool 2-25
shock hazard warning 2-26
troubleshooting 4-3
ports
1-3
10/100/1000 1-10, B-3
recommended cables 2-24
10/100 PoE
See also PoE
dual-purpose
LEDs 1-10
SFP module 1-4
POST
description
LEDs 4-1
power-input terminal
description
wiring 3-7
power specifications A-4
power-supply modules
description
features 1-13
B-2
1-4
1-4
4-1
1-6
1-11
B-7
B-7
grounding the switch 3-3
installation guidelines 3-3, 3-11
installing AC or DC 3-3 to 3-11
specifications A-4
wiring the power source 3-7
power-supply side description 1-11
procedures
connection
?? to 2-26
PSU 1 and PSU 2 LEDs 1-9
publications, related i-viii
R
rack-mounting 2-4 to 2-26
removing SFP modules 2-20
RJ-45 connector
alarm input port
B-3
console port B-8
S
safety 2-1
SD flash memory card 1-11
serial number location 4-5
setup program C-7
SFP module patch cable
description
installing 2-21
removing 2-22
SFP modules
bale-clasp latch removal
connectors B-2
installing 2-19
removing 2-20
supported 1-3
SFP module slots 1-4
short-circuit protection warning 3-7
Simple Network Management Protocol
1-5
2-20
78-19377-02
Cisco CGS 2520 Hardware Installation Guide
IN-3
Index
See SNMP
SNMP network management platforms
software switch management 1-13
specifications A-1 to A-4
speed
troubleshooting
4-4
straight-through cable pinout
four twisted-pair 1000BASE-T ports
two twisted-pair 10/100 ports B-6
SunNet Manager 1-14
switch models 1-1
switch models illustrated 1-2
T
technical specifications A-1 to A-4
Telnet, and accessing the CLI 1-13
temperature, operating A-1
troubleshooting
bad or damaged cable
connection problems 4-2
diagnosing problems 4-1
Ethernet and fiber cables 4-2
link status 4-2
ping end device 4-3
PoE connections 4-3
POST 4-1
serial number location 4-5
spanning tree loops 4-4
speed, duplex, and autonegotiation 4-4
switch performance 4-4
with LEDs 4-1
4-2
1-14
B-7
W
wall-mounting 2-16
warnings
airflow restriction
ambient temperature 2-2
ground conductor 3-4
ground connection 3-4
installation 2-1
jewelry removal 2-1
lightning activity 2-1, 3-3
national laws and regulations 2-2
PoE shock hazard 2-26
qualified personnel 2-2
restricted access areas 2-2
short-circuit (overcurrent) protection 3-7
two-poled disconnect device 3-7
2-3
U
uninstalling the Cisco Microsoft Windows USB
C-5
driver
USB console port
overview
IN-4
1-7
Cisco CGS 2520 Hardware Installation Guide
78-19377-02
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