HP 2520G-POE User Manual
HP ProCurve 2520G-PoE Switches
Installation and Getting Started Guide
Power over Ethernet
HP ProCurve 2520G-PoE Switches
Installation and Getting Started Guide
© Copyright 2009 Hewlett-Packard Development
Company, L.P.
Publication Number
5992-4975
October 2009
Applicable Products
HP ProCurve 2520G-8-PoE Switch (J9298A)
HP ProCurve 2520G-24-PoE Switch (J9299A)
Disclaimer
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or use of this material.
The information contained herein is subject to change
without notice. The only warranties for HP products and
services are set forth in the express warranty statements
accompanying such products and services. Nothing herein
should be construed as constituting an additional warranty.
HP shall not be liable for technical or editorial errors or
omissions contained herein.
Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Warra nt y
See the Software License, Warranty and Support booklet
included with the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service Office or
authorized dealer.
Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5551
Roseville, California 95747-5551
www.hp.com/go/procurve
Safety
Before installing and operating these products, please read
the “Installation Precautions” in chapter 2, “Installing the
Switch”, and the safety statements in appendix B, “Safety
and EMC Regulatory Statements”.
Contents
1 Introducing the Switch
Front of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
LED Mode Select Button and Indicator LEDs . . . . . . . . . . . . . . . . 1-7
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Clear Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Back of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Switch Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Save Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
2 Installing the Switch
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2. Verify the Switch Passes Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
LED Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3. Mount the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Rack or Cabinet Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Rack Mounting the Switch 2520G-24-PoE . . . . . . . . . . . . . . . . . . . 2-9
Rack Mounting the Switch 2520G-8-PoE . . . . . . . . . . . . . . . . . . . 2-11
Wall or Under-Table Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Horizontal Surface Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Using a Kensington Security Cable . . . . . . . . . . . . . . . . . . . . . . . . 2-15
4. Connect the Switch to a Power Source . . . . . . . . . . . . . . . . . . . . . . 2-15
5. Connect the Network Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Using the RJ-45 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
iii
6. Installing or Removing mini-GBICs . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Installing the mini-GBICs: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Removing the mini-GBICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Connecting Cables to mini-GBICs . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
7. (Optional) Connect a Console to the Switch . . . . . . . . . . . . . . . . . . 2-20
Terminal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Direct Console Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Sample Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
As a Desktop Switch Implementing PoE . . . . . . . . . . . . . . . . . . . . . . . 2-22
As a Segment Switch Implementing PoE . . . . . . . . . . . . . . . . . . . . . . . 2-23
Stacking the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
3 Configuring the Switch
Recommended Minimal Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using the Console Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Where to Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Using the IP Address for Remote Switch Management . . . . . . . . . . . . . . . . 3-5
Starting a Telnet Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Starting a Web Browser Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
4 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
LED patterns for General Switch Troubleshooting . . . . . . . . . . . . . . . 4-4
LED Patterns for PoE Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Proactive Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Testing the Switch by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Checking the Switch LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Checking Console Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Testing Switch-to-Device Network Communications . . . . . . . . . . . . 4-11
Testing End-to-End Network Communications . . . . . . . . . . . . . . . . . 4-11
Restoring the Factory Default Configuration . . . . . . . . . . . . . . . . . . . . . . . 4-12
Downloading New Switch Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
iv
HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Before Calling Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
A Specifications
Switch Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
BTU Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Cabling and Technology Information Specifications . . . . . . . . . . . . . . . . A-4
Technology Distance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
Mode Conditioning Patch Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Installing the Patch Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Straight-through Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connections . . . . . . . . . . . . . . . . . . . A-10
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Crossover Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connection . . . . . . . . . . . . . . . . . . . . A-11
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
Straight-Through Twisted-Pair Cable for
1000 Mbps Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
Cable Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
B Safety and EMC Regulatory Statements
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
EMC Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
U.S.A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Australia/New Zealand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
v
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
European Community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10
D Recycle Statements
Waste Electrical and Electronic Equipment (WEEE) Statements . . . . . . D-1
Index
vi
Introducing the Switch
HP ProCurve 2520G-8-PoE Switch (J9298A)
HP ProCurve 2520G-24-PoE Switch (J9299A)
The HP ProCurve 2520G-PoE Switches are multiport switches that can be used
to build high-performance switched workgroup networks. These switches are
store-and-forward devices that offer low latency for high-speed networking.
The 2520G-PoE switches also support Power over Ethernet (PoE)
technologies.
1
Throughout this manual, these switches will be referred to as the Switch
2520G-8-PoE and the Switch 2520G-24-PoE.
■ The Switch 2520G-8-PoE has 8 auto-sensing 10/100/1000Base-T RJ-45
ports with two Gigabit Uplink dual-personality ports (ports 9 and 10).
■ The Switch 2520G-24-PoE has 24 auto-sensing 10/100/1000Base-T RJ-45
ports, four of which are dual-personality ports (ports 21 through 24).
■ Power-over-Ethernet or PoE power - Both 2520G-PoE switches
support PoE technology, which allows IP telephones, wireless LAN
Access Points and other appliances to receive power as well as data over
existing LAN cabling, without needing to modify the existing Ethernet
infrastructure. The Switch 2520G-24-PoE is designed with an internal PoE
power supply capable of providing 195 watts of PoE power (67 watts on
the Switch 2520G-8-PoE). Each Switch port can provide up to 15.4 watts
(or 7.5 watts if all ports are used) of PoE power to connected devices. For
further information regarding PoE power, see the PoE Planning and
Implementation Guide, which is on the ProCurve Web site at
www.hp.com/go/procurve/manuals.
1-1
Introducing the Switch
Dual-personality ports use either the 10/100/1000Base-T RJ-45 connector, or a
supported ProCurve mini-GBIC (Small Form Factor Pluggable (SFP)) for
fiber-optic connection. By default, the RJ-45 connectors are enabled.
These switches can be directly connected to computers, printers, and servers
to provide dedicated bandwidth to those devices, and you can build a switched
network infrastructure by connecting the switch to hubs, other switches, or
routers. In addition, the 2520G-PoE switches offer full network management
capabilities.
Using ProCurve mini-GBICs, these products support optional network
connectivity with the following speeds and technologies:
Table 1-1. Optional Network Connectivity, Speeds and Technologies
Transceiver Form-
Factor and
Connector
1
Speed Technology
Cabling
SFP ("mini-GBIC")
Connector
100 Mbps
1 Gbps
1
For supported transceivers, see www.hp.com/go/procurve/faqs. HP ProCurve Mini-
GBICs and SFPs have links to a list of supported products (first question in the "General
product information" category).
For technical details of cabling and technologies see
tion Specifications” in the appendix A.
100-FX Fiber (multimode) LC
100-BX Fiber (single mode) LC
1000-SX Fiber (multimode) LC
1000-LX Fiber (multimode or single mode) LC
1000-LH Fiber (single mode) LC
1000-BX Fiber (single mode) LC
“Cabling and Technology Informa-
1-2
Front of the Switch
HP ProCurve 2520G-8-PoE Switch (J9298A)
Power,
Fault, and
Locator
LEDs
Test and Status
LEDs
Switch port LEDs
LED Mode select button
and indicator LEDs
Reset and Clear
buttons
10/100/1000Base-T RJ-45 ports1
Dual-personality ports
(1000Base-T
2
and mini-GBIC)
Console
Port
Reset and Clear
buttons
LED Mode select button
and indicator LEDs
10/100/1000Base-T RJ-45 ports1
Dual-personality ports
(1000Base-T
2
and Mini-GBIC)
Switch port LEDs
PoE, Fan and Test
Status LEDs
Power, Fault,
and Locator
LEDs
Console
Port
1
All 10/100/1000Base-T RJ-45 ports have the Auto-MDIX feature.
2
Dual-personality ports, either RJ-45 10/100/1000Base-T ports or Mini-GBIC (SFP) slots.
HP ProCurve 2520G-24-PoE Switch (J9299A)
Introducing the Switch
Front of the Switch
Network Ports
■ 8, or 24 auto-sensing 10/100/1000Base-T ports.
All these ports have the “Auto-MDIX” feature, which means that you can
use either straight-through or crossover twisted-pair cables to connect
any network devices to the switch.
■ Two, or four dual-personality ports for either 10/100/1000Base-T RJ-45
uplinks, or mini-GBIC (SFP) slots for fiber uplinks.
1-3
Introducing the Switch
Front of the Switch
Switch LEDs State Meaning
LEDs
On the 2520G-PoE switches, there are three groupings of LEDs:
■ switch status LEDs (Table 1-2)
■ port LEDs (Table 1-3)
■ Port LED Mode indicator LEDs (near the selector button) (Table 1-4)
Table 1-2. Switch Status LEDs
Power
(green)
Fault
(orange)
Locator
(blue)
PoE
(green/orange)
On The internal power supply is working properly.
Off No power connection. The switch is NOT receiving power.
Off The normal state; indicates there are no fault conditions on the switch.
Flashing2A fault has occurred with a component on the switch. The Status LED for
the component with the fault will flash simultaneously.
On On briefly after the switch is powered on or reset, at the beginning of
switch self test. If this LED is on for a prolonged time, the switch has
encountered a fatal hardware failure, or has failed its self test. See
chapter 4, “Troubleshooting” for more information.
On
Flashing
Off
The Locator LED is used to locate a specific switch in an area full of
switches. The LED can be set to be on solid or flash for a s pecified number
of minutes (1-1440). The default is 30 minutes. Use the command
“chassislocate”.
On green
Flashing
orange
Normal operation. The switch is ready to supply PoE power
One or more ports has experienced a fault condition for PoE delivery. The
2
Fault LED will be flashing simultaneously. If it is a self test failure, the Test
LED will be flashing simultaneously. When the switch is put in PoE LED
Mode, the Mode LED for the port with the problem will also be flashing
simultaneously.
Flashing
orange
One or more ports has an alert condition for PoE delivery, for example, an
1
oversubscription condition (not enough PoE power available). Only this
LED will be flashing, the Fault LED is off. When the switch is put in PoE
LED Mode, the Mode LEDs for the ports with the alert condition will also
be flashing.
1-4
Fan
(green/orange)
(Switch 2520G24-PoE only)
On green The cooling fan is operating normally.
Flashing
orange
The cooling fan has failed. The switch Fault LED will be flashing
2
simultaneously.
Switch LEDs State Meaning
Introducing the Switch
Front of the Switch
Te st
(green/orange)
Off The normal operational state; the switch is not undergoing self test.
On green The switch self test and initialization are in progress after the switch has
been power cycled or reset. The switch is not operational until this LED
goes off. The Test LED also comes on briefly when you “hot swap” a miniGBIC into the switch; the mini-GBIC is tested when it is hot swapped.
Flashing
orange
1
The flashing behavior is an on/off cycle once every 0.8 seconds approximately, a fast flash.
2
The flashing behavior is an on/off cycle once every 1.6 seconds approximately, a slow flash.
A component of the switch has failed its self test. The switch Fault LED,
2
Test LED, and the failed component LED will flash simultaneously.
1-5
Introducing the Switch
Front of the Switch
Switch LEDs State Meaning
Port LEDs
2
Link
(green)
Mode (green)
Port LEDs
The port LEDs provide information about the individual switch ports.
Table 1-3. Port LEDs
On The port is enabled and receiving a link indication from the connected
device. In PoE mode, indicates that the port is configured to enable PoE
power delivery to the connected device.
Off One of these condition exists:
• no active network cable is connected to the port
• the port is not receiving link beat or sufficient light
• the port has been disabled through the switch console, the Web
browser interface, ProCurve Manager, or other network management
tool.
• In PoE mode, indicates that the port i s configured such that PoE power
delivery is disabled.
• Save power mode is enabled.
1
Flashing
2
Depending on the mode selected, displays the following:
• network activity information
• connection duplex mode
• connection speed information
• PoE power delivery status
See “LED Mode Select Button and Indicator LEDs:” below for more information.
The port has failed self test. The switch Fault, and Self Test LEDs will flash
simultaneously.
1-6
Mini-GBIC LEDs
2
Link
Flashing
green
One of the following conditions exist:
• the mini-GBIC is not supported by the current software
• the mini-GBIC is not a genuine ProCurve Mini-GBIC and is not
supported
• the mini-GBIC is an “A” version in a switch that requires a “B” version
or later.
Link and Mode
(green)
2
On for 2
seconds
Both the Link and Mode LED turn on solid for 2 seconds and then go to
normal operation. This indicates the mini-GBIC has been recognized by
the switch.
1
The flashing behavior is an on/off cycle once every 1.6 seconds, approximately.
2
These LEDs are turned off when Save Power mode is enabled. If Save Power mode is enabled and the
LEDs are turned off, they can be turned on temporarily through the LED Mode button.
Introducing the Switch
Mode LED
Link LED
LED Mode select button
and indicator LEDs
The 2520G-PoE switches, have two
LEDs per port. The Link status is
always shown by the Link LED. The
operation of the Mode LED is
controlled by the LED Mode select
button, and the current setting is
indicated by the LED Mode indicator
LEDs near the button. Press the
button to step from one view mode
to the next. The default view is
Activity (Act).
Front of the Switch
LED Mode Select Button and Indicator LEDs
To optimize the amount of information that can be displayed for each of the
switch ports in the limited space available, the 2520G-PoE switches use
multiple-display LEDs for each port.
Table 1-4. Multiple-Display Port LEDs
Switch LEDs Mode Meaning
Port Mode
indicator LEDs
(4 green LEDs)
When Save Power mode is enabled and all port LEDs are off, press the LED
Mode select button to turn the port LEDs on. Press the LED Mode select button
again to step through each view mode. Press the LED Mode select button after
the PoE view mode to turn LEDs off.
If the port LEDs are left on when Save Power mode is enabled, they turn off
automatically after 10 minutes.
Act Indicates the Port LEDs are displaying network activity information.
FDx Indicates the Port LEDs are lit for ports that are in full-duplex mode.
Spd Indicates the Port LEDs are displaying the connection speed at which each
PoE Indicates the Port LEDs are lit for ports that are providing PoE power to the
port is operating:
• if the Port LED is off, the port is operating at 10 Mbps.
• if the Port LED is flashing, the port is operating at 100 Mbps.
• if the Port LED is on continuously, the port is operating at 1000 Mbps.
connected device.
1-7
Introducing the Switch
Front of the Switch
Reset Button
This button is for:
■ Resetting the switch - When the switch is powered on. This action clears
any temporary error conditions that may have occurred and executes the
switch self test.
■ Restoring Factory Default Configuration - When pressed with the
Clear button in a specific pattern, any configuration changes you may have
made through the switch console, the Web browser interface, and SNMP
management are removed, and the factory default configuration is
restored to the switch. For the specific method to restore the factory
default configuration, see “Restoring the Factory Default Configuration”
on page 4-12 of this manual.
Clear Button
This button is used for:
■ Deleting Passwords - When pressed by itself for at least one second, the
button deletes any switch console access passwords that you may have
configured. Use this feature if you have misplaced the password and need
console access. This button is provided as a convenience, however if you
are concerned with the security of the switch configuration and operation,
you should make sure the switch is installed in a secure location. This
button can be disabled by a CLI command.
■ Restoring Factory Default Configuration - See Reset Button above.
1-8
Console Port
This port is used to connect a console to a 2520G-PoE Switch by using the
RJ-45 to DB9 cable, supplied with the switch. This connection is described
under “7. (Optional) Connect a Console to the Switch” on page 2-20 in
chapter 2, “Installing the Switch.” The console can be a PC or workstation
running a VT-100 terminal emulator, or a VT-100 terminal.
Back of the Switch
DC power connector
HP ProCurve 2520G-8-PoE Switch (J9298A)
AC power connector
HP ProCurve 2520G-24-PoE Switch (J9299A)
Introducing the Switch
Back of the Switch
Power Connector
The Switch 2520G-24-PoE does not have a power switch; it is powered on
when connected to an active AC power source. The switch automatically
adjusts to any voltage between 100-127 and 200-240 volts and either 50 or
60 Hz. There are no voltage range settings required.
The Switch 2520G-8-PoE also does not have a power switch. It is powered on
when the external AC/DC power adapter is connected to the switch and to a
power source. The external AC/DC power adapter supplies 48 volts DC to the
switch and automatically adjusts to any AC voltage between 100-240 volts and
either 50 or 60 Hz. No voltage range settings are required.
1-9
Introducing the Switch
Switch Features
Switch Features
The features of the 2520G-PoE switches include:
■ 8, or 24 auto-sensing 10/100/1000Base-T RJ-45 ports with Auto-MDIX.
■ Two, or four dual-personality uplink ports (1000Base-T RJ-45 or mini-
GBIC).
■ Power over Ethernet (PoE) operation—the switches are IEEE 802.3af
compliant and provide up to 15.4W per port to power IP phones, wireless
access points, Web cameras, and more. For more information, see the PoE
Planning and Implementation Guide, which is on the ProCurve Web site
at www.hp.com/go/procurve/manuals.
■ The switches support some pre-standard PoE devices. However, the use
of a cross-over cable may be required.
■ Plug-and-play networking—all ports are enabled—just connect the
network cables to active network devices and your switched network is
operational.
■ Auto-MDIX on all twisted-pair ports, meaning that all twisted-pair
connections can be made using straight-through cables. Cross-over cables
are not required, although they will also work.
■ Automatic learning of the hardware addresses in each switch’s 8000-
address forwarding table, (with configurable address aging value).
■ Automatically negotiated full-duplex operation for the 10/100/1000 RJ-45
ports when connected to other auto-negotiating devices.
■ a “Save Power” mode option that keeps port LEDs turned off except for
when the LED Mode select button is pressed.
■ an automatic low-power mode for ports when a link is not present.
■ Easy management of the switches through several available interfaces:
• console interface—a full featured, easy to use, VT-100 terminal
interface that is especially good for out-of-band switch management
or for Telnet access to the switch.
• Web browser interface—an easy to use built-in graphical interface
that can be accessed from common Web browsers.
• ProCurve Manager—an SNMP-based, graphical network
management tool that you can use to manage your entire network.
■ Support for the Spanning Tree Protocol to eliminate network loops
■ Support for up to 256 IEEE 802.1Q-compliant VLANs so you can divide
the attached end nodes into logical groupings that fit your business needs.
■ Download of new switch software for product enhancements or bug fixes.
1-10
Introducing the Switch
Switch Features
■ Variable speed fans ensure quiet operation on the Switch 2520G-24-PoE.
■ Support for many advanced features to enhance network performance—
for a description, see the Management and Configuration Guide, which
is on the ProCurve Web site at www.hp.com/go/procurve/manuals. (You may
want to bookmark this Web page for easy access in the future.)
Save Power Mode
A Save Power mode feature can be configured through the console. Save
Power mode can be used to turn off port LEDs unless the LED Mode button
is pressed. In addition, it can configure the LAN ports to operate at low power
if a link is not detected.
1-11
Installing the Switch
This chapter provides installation information for the 2520G-PoE switches.
Included Parts
The 2520G-PoE switches have the following components:
■ Documentation kit
• Read Me First
• Switch Quick Setup Guide
• Safety and Regulatory information
• Software License, Warranty, and Support information
■ Console port serial cable (DB-9 to RJ-45)
■ Accessory kits:
Switch 2520G-24-PoE Switch 2520G-8-PoE
2
Kit number 5069-6535
Contains:
• two mounting brackets
• eight 8-mm M4 screws to attach the
mounting brackets to the switch
• four 5/8-inch number 12-24 screws to
attach the switch to a rack
• four rubber feet
1
For wall mounting the Switch 2520G-8-PoE. For rack mounting, an optional bracket kit,
5070-6570, is available. Visit www.hp.com/go/procurve-parts.
Kit number 5070-6881
Contains:
• two mounting brackets
• four 8-mm M4 screws to attach the
mounting brackets to the switch
• four rubber feet
• cable tie for power cord
1
2-1
Installing the Switch
Included Parts
■ Switch 2520G-24-PoE AC power cords, one of the following:
Australia/New Zealand
China
Continental Europe
Denmark
India
Israel
Japan
South Africa
Switzerland
Thailand
Ta iw a n
United Kingdom/Hong Kong/Singapore
United States/Canada/Mexico
■ Switch 2520G-8-PoE external AC/DC power adapters and power cords,
8121-0833
8120-8377
8120-6802
8120-6806
8121-0772
8120-6799
8120-6804
8120-6808
8120-6807
8121-0667
8121-0964
8120-8709
8120-6805
one of the following:
External AC/DC Power Adapter
All countries/regions 5070-6082
Power Cords for AC/DC Power Adapter
Australia
China
Continental Europe
Denmark
India
Israel
Japan
South Africa
Switzerland
Thailand
United Kingdom/Hong Kong/Singapore
United States/Canada/Mexico
8121-0838
8121-0910
8120-8861
8120-8930
8121-0564
8121-1035
8121-0875
8120-8929
8121-0908
8121-0673
8121-0909
8121-0921
Japan Power
Cord Warning
2-2
Installing the Switch
Included Parts
Installation Precautions
WARNING ■ The rack or cabinet should be adequately secured to prevent it
from becoming unstable and/or falling over.
Devices installed in a rack or cabinet should be mounted as low as
possible, with the heaviest devices at the bottom and progressively
lighter devices installed above.
■ Wall-mount the Switch 2520G-8-PoE with network ports facing up
(away from the floor). Do not wall-mount the switch with the
network ports facing down (toward the floor) or ventilation ducts
facing up or down.
Cautions ■ Use only the AC/DC power adapter supplied with the Switch 2520G-8-PoE
for connection to an AC power source.
■ Ensure the power source circuits are properly grounded, then use the
power cord supplied with the switch to connect it to the power source.
■ If your installation requires a different power cord than the one supplied
with the switch, ensure the cord is adequately sized for the switch’s
current requirements. In addition, be sure to use a power cord displaying
the mark of the safety agency that defines the regulations for power cords
in your country. The mark is your assurance that the power cord can be
used safely with the switch. If the supplied power cord does not fit,
contact ProCurve Networking support.
■ When installing the switch, the AC outlet should be near the switch and
should be easily accessible in case the switch must be powered off.
■ Ensure the switch does not overload the power circuits, wiring, and over-
current protection. To determine the possibility of overloading the supply
circuits, add together the ampere ratings of all devices installed on the
same circuit as the switch and compare the total with the rating limit for
the circuit. Maximum ampere ratings are usually printed on the devices
near the AC power connectors.
■ Do not install the switch in an environment where the operating ambient
temperature might exceed 50°C (122°F). This includes a fully-enclosed
rack. Ensure the air flow around the sides and back of the switch is not
restricted. Leave at least 7.6 cm (3 inches) for cooling.
■ Ensure all port covers are installed when the port is not in use.
2-3
Installing the Switch
Installation Procedures
Installation Procedures
These steps summarize your switch installation. The rest of this chapter
provides details on these steps.
1. Prepare the installation site (page 2-5). Make sure the physical
environment into which you will be installing the switch is properly
prepared, including having the correct network cabling ready to connect
to the switch and having an appropriate location for the switch. See page
2-3 for some installation precautions.
2. Verify the switch passes self test (page 2-6). Plug the switch into a
power source and observe that the LEDs on the switch’s front panel
indicate correct switch operation.
3. Mount the switch (page 2-8). The 2520G-PoE switches can be mounted
in a 19-inch telco rack, in an equipment cabinet, on a wall, or on a
horizontal surface.
4. Connect power to the switch (page 2-15). Once the switch is mounted,
plug it into the main power source.
5. Connect the network devices (page 2-17). Using the appropriate
network cables, connect the network devices to the switch ports.
6. (Optional) Install mini-GBICs (page 2-18). The switch has two or four
slots for installing mini-GBICs. Depending on where you install the switch,
it may be easier to install the mini-GBICs first. Mini-GBICs can be hot
swapped—they can be installed or removed while the switch is powered
on.
7. (Optional) Connect a console to the switch (page 2-20). You may
wish to modify the switch’s configuration, for example, to configure an IP
address so it can be managed using a Web browser, from an SNMP
network management station, or through a Telnet session. Configuration
changes can be made by using the included console cable to connect a PC
to the switch’s console port.
At this point, your switch is fully installed. See the rest of this chapter if you
need more detailed information on any of these installation steps.
2-4
Installing the Switch
Installation Procedures
1. Prepare the Installation Site
■ Cabling Infrastructure - Ensure the cabling infrastructure meets the
necessary network specifications. See appendix A, “Cabling and
Technology Information Specifications” for more information:
■ Installation Location - Before installing the switch, plan its location and
orientation relative to other devices and equipment:
• In the front of the switch, leave at least 7.6 cm (3 inches) of space for
the twisted-pair and fiber-optic cabling.
• In the back of the switch, leave at least 3.8 cm (1 1/2 inches) of space
for the power cord.
• On the sides of the switch, leave at least 7.6 cm (3 inches) for cooling.
2-5
Installing the Switch
Connect power cord to
the power connector
Switch 2520G-8-PoE
Switch 2520G-24-PoE
Connect AC/DC power adapter to the
switch and an AC power outlet
Installation Procedures
2. Verify the Switch Passes Self Test
Before mounting the switch in its network location, you should first verify it
is working properly by plugging it into a power source and verifying it passes
its self test.
1. For the Switch 2520G-24-PoE, connect the power cord supplied with the
switch to the power connector on the back of the switch, and then into a
properly grounded electrical outlet.
For the Switch 2520G-8-PoE, connect the AC/DC adapter’s power cord to
the power connector on the back of the switch, and then plug the AC/DC
power adapter into a nearby properly grounded electrical outlet.
Figure 2-1. Connecting the power cord
Note The Switch 2520G-24-PoE does not have a power switch. It is powered on
when the power cord is connected to the switch and to a power source. For
safety, the power outlet should be located near the switch installation.
2-6
Installing the Switch
Self Test LED
Switch port LEDs
Power, Fault, and
Locator LEDs
Installation Procedures
The switch automatically adjusts to any voltage between 100-127 or 200-240
volts and either 50 or 60 Hz. There are no voltage range settings required.
The Switch 2520G-8-PoE also does not have a power switch. It is powered on
when the external AC/DC power adapter is connected to the switch and the
adapter power cord to a power source. The external AC/DC power adapter
automatically adjusts to any voltage between 100-240 volts and either 50 or
60 Hz.
If your installation requires a different power cord than the one supplied with
the switch, be sure the cord is adequately sized for the switch’s current
requirements. In addition, be sure to use a power cord displaying the mark of
the safety agency that defines the regulations for power cords in your country.
The mark is your assurance that the power cord can be used safely with the
switch. If the supplied power cord does not fit, contact ProCurve Networking
support.
Caution Use only the AC/DC power adapter and power cord (if applicable), supplied
with the Switch 2520G-8-PoE. Use of other adapters or power cords, including
those that came with other ProCurve Networking products, may result in
damage to the equipment.
2. Check the LEDs on the switch as described below.
Figure 2-2. Checking the LEDs
When the switch is powered on, it performs its diagnostic self test. Self test
takes approximately 50 seconds to complete.
2-7
Installing the Switch
Installation Procedures
LED Behavior
During the self test:
• Initially, all the switch and port LEDs are on. Most of the LEDs go off
and then may come on again during phases of the self test.
• For the duration of the self test, the Test LED stays on.
When the self test completes successfully:
•The Power, PoE and Fan (Switch 2520G-24-PoE only) LEDs remain on.
•The Fault, Locator and Tes t LEDs stay off.
•The Act LED remains on indicating the default port LED mode.
• The port LEDs on the front of the switch go into their normal opera-
tional mode:
– If the ports are connected to active network devices, the Link
LEDs stay on and the Mode LEDs behave according to the mode
selected. In the default mode (Act), the Mode LEDs should be
blinking indicating port activity.
– If the ports are not connected to active network devices, the Link
and Mode LEDs will stay off.
If the LED display is different than what is described above, especially if
the Fault and Test LEDs stay on for more than 60 seconds or they start
flashing, the self test has not completed correctly. Refer to chapter 4,
“Troubleshooting” for diagnostic help.
2-8
3. Mount the Switch
After the switch passes self test, it is ready to be mounted in a stable location.
The switch can be mounted in these ways:
■ in a rack or cabinet
■ on a horizontal surface
■ on a wall
Rack or Cabinet Mounting
The Switch 2520G-24-PoE is designed to be mounted in any EIA-standard 19inch telco rack or communication equipment cabinet. The Switch 2520G-8PoE can also be rack mounted using the optional bracket kit, 5070-6570 (not
included).
Note that the mounting brackets have multiple mounting holes and can be
rotated allowing for a wide variety of mounting options. Secure the rack in
accordance with the manufacture’s safety guidelines.
Installing the Switch
Installation Procedures
WARNING For safe operation, please read the mounting precautions on
page 2-3, before mounting a switch.
Equipment
Cabinet
Note
The 12-24 screws supplied with the switch are the correct threading for
standard EIA/TIA open 19-inch racks. If installing the switch in an equipment
cabinet such as a server cabinet, use the clips and screws that came with the
cabinet in place of the 12-24 screws that are supplied with the switch.
Rack Mounting the Switch 2520G-24-PoE
1. Use a #1 Phillips (cross-head) screwdriver and attach the mounting
brackets to the switch with the included 8-mm M4 screws.
Figure 2-3. Attaching mounting brackets
WARNING For safe reliable installation, only use the screws provided in the
accessory kit to attach the mounting brackets to the switch.
Note The mounting brackets have multiple mounting holes and can be rotated
allowing for a wide variety of mounting options. These include mounting the
switch so that its front face is flush with the face of the rack, or mounting it
in a more balanced position.
2-9
Installing the Switch
Install 12-24
screws
Installation Procedures
2. Hold the switch with attached brackets up to the rack and move it
vertically until rack holes line up with the bracket holes, then insert and
tighten the four number 12-24 screws holding the brackets to the rack.
Figure 2-4. Mounting in a rack
2-10
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