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.

Warranty

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.

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”.

Hewlett-Packard Company

8000 Foothills Boulevard, m/s 5551 Roseville, California 95747-5551

www.hp.com/go/procurve

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

1

Introducing the Switch

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.

HP ProCurve 2520G-8-PoE Switch (J9298A)

HP ProCurve 2520G-24-PoE Switch (J9299A)

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
	Speed	Technology	Cabling1	SFP ("mini-GBIC")
				Connector
	100 Mbps	100-FX	Fiber (multimode)	LC
		100-BX	Fiber (single mode)	LC
		1000-SX	Fiber (multimode)	LC
	1 Gbps	1000-LX	Fiber (multimode or single mode)	LC
		1000-LH	Fiber (single mode)	LC
		1000-BX	Fiber (single mode)	LC

1 For supported transceivers, see www.hp.com/go/procurve/faqs. HP ProCurve MiniGBICs 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 “Cabling and Technology Information Specifications” in the appendix A.

1-2

Introducing the Switch

Front of the Switch

Front of the Switch

Power,		Test and Status
				Switch port LEDs
Fault, and		LEDs
Locator
LEDs

HP ProCurve 2520G-8-PoE Switch (J9298A)

	Console		Reset and Clear		LED Mode select button		10/100/1000Base-T RJ-45 ports		Dual-personality ports
	Port		buttons		and indicator LEDs				(1000Base-T2 and mini-GBIC)

Power, Fault,					HP ProCurve 2520G-24-PoE Switch (J9299A)
		PoE, Fan and Test		Switch port LEDs
and Locator
LEDs		Status LEDs

		Reset and Clear		LED Mode select button			Dual-personality ports
Console						10/100/1000Base-T RJ-45 ports1
		buttons		and indicator LEDs			(1000Base-T2 and Mini-GBIC)
Port

1All 10/100/1000Base-T RJ-45 ports have the Auto-MDIX feature.

2Dual-personality ports, either RJ-45 10/100/1000Base-T ports or Mini-GBIC (SFP) slots.

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

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

Switch LEDs	State	Meaning
Power	On	The internal power supply is working properly.
(green)	Off	No power connection. The switch is NOT receiving power.
Fault	Off	The normal state; indicates there are no fault conditions on the switch.
(orange)	Flashing2	A 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.
Locator	On	The Locator LED is used to locate a specific switch in an area full of
(blue)	Flashing	switches. The LED can be set to be on solid or flash for a specified number
	Off	of minutes (1-1440). The default is 30 minutes. Use the command
		“chassislocate”.
PoE	On green	Normal operation. The switch is ready to supply PoE power
(green/orange)	Flashing	One or more ports has experienced a fault condition for PoE delivery. The
	orange2	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	One or more ports has an alert condition for PoE delivery, for example, an
	orange1	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.
Fan	On green	The cooling fan is operating normally.
(green/orange)	Flashing	The cooling fan has failed. The switch Fault LED will be flashing
(Switch 2520G-
24-PoE only)	orange2	simultaneously.

1-4

		Introducing the Switch
		Front of the Switch
Switch LEDs	State	Meaning
Test	Off	The normal operational state; the switch is not undergoing self test.
(green/orange)	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 mini-
		GBIC into the switch; the mini-GBIC is tested when it is hot swapped.
	Flashing	A component of the switch has failed its self test. The switch Fault LED,
	orange2	Test LED, and the failed component LED will flash simultaneously.
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.

1-5

Introducing the Switch

Front of the Switch

Port LEDs

The port LEDs provide information about the individual switch ports.

Table 1-3. Port LEDs

Switch LEDs	State		Meaning
Port LEDs
Link2	On		The port is enabled and receiving a link indication from the connected
(green)			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 is configured such that PoE power
			delivery is disabled.
			• Save power mode is enabled.
	Flashing1		The port has failed self test. The switch Fault, and Self Test LEDs will flash
			simultaneously.
Mode (green)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.
Mini-GBIC LEDs
Link2	Flashing		One of the following conditions exist:
	green		• 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 Mode2	On for 2		Both the Link and Mode LED turn on solid for 2 seconds and then go to
(green)	seconds		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.

1-6

Introducing the Switch

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.

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).

Link LED		Mode LED

LED Mode select button and indicator LEDs

Table 1-4.		Multiple-Display Port LEDs
Switch LEDs	Mode		Meaning
Port Mode	Act		Indicates the Port LEDs are displaying network activity information.
indicator LEDs
	FDx		Indicates the Port LEDs are lit for ports that are in full-duplex mode.
(4 green LEDs)
	Spd		Indicates the Port LEDs are displaying the connection speed at which each
			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.
	PoE		Indicates the Port LEDs are lit for ports that are providing PoE power to the
			connected device.

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.

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.

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.

1-8

Introducing the Switch

Back of the Switch

Back of the Switch

HP ProCurve 2520G-8-PoE Switch (J9298A)

DC power connector

HP ProCurve 2520G-24-PoE Switch (J9299A)

AC power connector

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 miniGBIC).

■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 8000address 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

2

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

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

Kit number 5070-6881

Contains:

•two mounting brackets 1

•four 8-mm M4 screws to attach the mounting brackets to the switch

•four rubber feet

•cable tie for power cord

1For 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.

2-1

Installing the Switch

Included Parts

■Switch 2520G-24-PoE AC power cords, one of the following:

Australia/New Zealand	8121-0833
China	8120-8377
Continental Europe	8120-6802
Denmark	8120-6806
India	8121-0772
Israel	8120-6799
Japan	8120-6804
South Africa	8120-6808
Switzerland	8120-6807
Thailand	8121-0667
Taiwan	8121-0964
United Kingdom/Hong Kong/Singapore	8120-8709
United States/Canada/Mexico	8120-6805

■Switch 2520G-8-PoE external AC/DC power adapters and power cords, one of the following:

External AC/DC Power Adapter
All countries/regions	5070-6082
Power Cords for AC/DC Power Adapter
Australia	8121-0838
China	8121-0910
Continental Europe	8120-8861
Denmark	8120-8930
India	8121-0564
Israel	8121-1035
Japan	8121-0875
South Africa	8120-8929
Switzerland	8121-0908
Thailand	8121-0673
United Kingdom/Hong Kong/Singapore	8121-0909
United States/Canada/Mexico	8121-0921

J a p a n P o w e r

C o r d W a r n i n g

2-2

W A R N I N G

C a u t i o n s

Installing the Switch

Included Parts

Installation Precautions

■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.

■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 overcurrent 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

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.

Switch 2520G-24-PoE

Connect power cord to the power connector

Switch 2520G-8-PoE

		Connect AC/DC power adapter to the
		switch and an AC power outlet
	Figure 2-1. Connecting the power cord
N o t e	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

C a u t i o n

Installing the Switch

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.

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.

	Power, Fault, and
			Switch port LEDs
	Locator LEDs

Self Test LED

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 Test 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 operational 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.

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-8- PoE 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.

2-8

W A R N I N G

E q u i p m e n t C a b i n e t

N o t e

W A R N I N G

N o t e

Installing the Switch

Installation Procedures

For safe operation, please read the mounting precautions on page 2-3, before mounting a switch.

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

For safe reliable installation, only use the screws provided in the accessory kit to attach the mounting brackets to the switch.

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

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.

Install 12-24

screws

Figure 2-4. Mounting in a rack

2-10