HP J9979A User manual

HP 1820 Switch Series
Installation and Getting Started Guide
HP 1820-8G Switch (J9979A)
HP 1820-24G Switch (J9980A)
H P 182 0 - 4 8 G Swi tc h (J 9 981 A)
HP 1820-8G-PoE+ (65W) Switch (J9982A)
HP 1820-24G-PoE+ (185W) Switch (J9983A)
HP 1820-48G-PoE+ (370W) Switch (J9984A)
Power over Ethernet

HP 1820 Switch Series
Installation and Getting Started Guide

© Copyright 2015 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
This document contains proprietary information, which is protected by copyright. No part of this document may be photocopied,
reproduced, or translated into another language without prior written consent of Hewlett-Packard.
Manual Part Number
5998-5835
February 2015
Applicable Products
HP 1820-8G Switch (J9979A)
HP 1820-24G Switch (J9980A)
HP 1820-48G Switch (J9981A)
HP 1820-8G-PoE+ (65W) Switch (J9982A)
HP 1820-24G-PoE+ (185W) Switch (J9983A)
HP 1820-48G-PoE+ (370W) Switch (J9984A)
Safety
Before installing and operating this product, please read the “Installation Precautions” in Chapter 2, “Installing the Switch”, and the safety
statements in General Safety and Regulatory Information booklet included with the product.
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 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
For the latest license and warranty information, visit www.hp.com/networking/support.
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.

5
Contents
1 Switch Overview
Switch Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Mode Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Switch Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
2 Installing the Switch
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2. Verify the Switch Passes Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
3. Mount the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
4. Connect the Switch to a Power Source . . . . . . . . . . . . . . . . . . . . . . 2-13
5. Connect the Network Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
6. Installing or Removing SFPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
3 Configuring the Switch
Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Using the 192.168.1.1 IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Where to Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
4 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
LED patterns for General Switch Troubleshooting . . . . . . . . . . . . . . . 4-2

6
Diagnostic Tips: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
LED Patterns for PoE Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Testing the Switch by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Restoring to Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Before Calling Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
A Specifications
Switch Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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-5
Installing the Patch Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Straight-through Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connections . . . . . . . . . . . . . . . . . . . . A-9
Crossover Twisted-Pair Cable for
10 Mbps or 100 Mbps Network Connection . . . . . . . . . . . . . . . . . . . . A-10
Straight-Through Twisted-Pair Cable for
1000 Mbps Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
B EMC Regulatory Statements
Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Index

1-1
1
Switch Overview
The HP 1820 Switch Series 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. Three
of the switches also support the IEEE 802.3at standard for providing PoE+
power to connected devices.
Throughout this manual, these switches will be referred to as the 1820-8G
Switch, 1820-24G Switch, 1820-48G Switch, 1820-8G-PoE+ Switch, 1820-24G-
PoE+ Switch, and the 1820-48G-PoE+ Switch.
■The 1820-8G Switch has 8 auto-sensing 10/100/1000BASE-T RJ-45 ports.
Port 1 is a Power over Ethernet Powered Device (PoE PD) port. The
switch can be powered by a network connection to port 1 from PoE power
sourcing equipment (PSE), such as a PoE switch.
■The 1820-24G Switch has 24 auto-sensing 10/100/1000BASE-T RJ-45 ports
and two SFP slots for supported HP SFP fiber-optic transceivers (ports
25 and 26).
■The 1820-48G Switch has 48 auto-sensing 10/100/1000BASE-T RJ-45 ports
and four SFP slots for supported HP SFP fiber-optic transceivers (ports
49 to 52).
■The 1820-8G-PoE+ Switch has 8 auto-sensing 10/100/1000BASE-T RJ-45
ports. The switch supports the IEEE 802.3at standard and is capable of
providing 65 watts of PoE power through ports 1-4.
■The 1820-24G-PoE+ Switch has 24 auto-sensing 10/100/1000BASE-T RJ-45
ports and two SFP slots for supported HP SFP fiber-optic transceivers
(ports 25 and 26). The switch supports the IEEE 802.3at standard and is
capable of providing 185 watts of PoE power through ports 1-12.
■The 1820-48G-PoE+ Switch has 48 auto-sensing 10/100/1000BASE-T RJ-45
ports and four SFP slots for supported HP SFP fiber-optic transceivers
(ports 49 to 52). The switch supports the IEEE 802.3at standard and is
capable of providing 370 watts of PoE power through ports 1-24.
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, these switches offer network management capabilities.

1-2
Switch Overview
Switch Hardware Features
Switch Hardware Features
HP 1820-8G Switch (J9979A)
Power and Fault/
Locator LEDs
10/100/1000BASE-T RJ-45 ports
Reset button
Link/Act and Speed LEDs
PoE PD port
HP 1820-24G Switch (J9980A)
Power and Fault/
Locator LEDs
Link/Act and Speed LEDs
10/100/1000BASE-T RJ-45 ports
Reset button SFP slots
HP 1820-48G Switch (J9981A)
Power and Fault/
LocatorLEDs
Link/Act and Speed LEDs
10/100/1000BASE-T RJ-45 ports
Reset button SFP slots

1-3
Switch Overview
Switch Hardware Features
HP 1820-8G-PoE+ (65W) Switch (J9982A)
Link/Act and Mode LEDs
10/100/1000BASE-T RJ-45 ports
Power and Fault/
Locator LEDs
Mode button
Reset button
PoE+ ports 1-4
HP 1820-24G-PoE+ (185W) Switch (J9983A)
Link/Act and Mode LEDs
10/100/1000BASE-T RJ-45 ports SFP slots
Power and Fault/
Locator LEDs
Reset button Mode button
PoE+ ports 1-12
HP 1820-48G-PoE+ (370W) Switch (J9984A)
Link/Act and Mode LEDs
10/100/1000BASE-T RJ-45 ports SFP slots
Power and Fault/
Locator LEDs
Reset button Mode button
PoE+ ports 1-24

1-4
Switch Overview
Switch Hardware Features
Network Ports
■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.
■Power-over-Ethernet or PoE ports.
The HP 1820 PoE+ switches support the IEEE 802.3at standard, which
allows IP telephones, wireless LAN Access Points, and other appliances
to receive power as well as data over existing LAN cabling. For further
information regarding PoE power, see the HP Power over Ethernet (PoE/
PoE+) Planning and Implementation Guide, which is on the HP Web site
at www.hp.com/support/manuals.
■PoE PD port (1820-8G Switch only).
A network connection to the PoE PD port from a PoE PSE device powers
on the switch.
■SFP slots for fiber or copper uplinks.
Using HP SFPs, these products support optional network connectivity
with the following speeds and technologies:
Transceiver Form-
Factor and
Connector1
Speed Technology Cabling SFP Connector
100 Mbps 100-FX Fiber (multimode) LC
1 Gbps
1000-T Copper (twisted-pair) RJ-45
1000-SX Fiber (multimode) LC
1000-LX Fiber (multimode or single mode) LC
1For supported transceivers, visit www.hp.com/networking/support.
– In the first textbox, type J4858 (for 100-Mb and Gigabit information).
– Select any of the products that display in the dropdown list. Then click Display
selected.
– Select Product support information. Then click Manuals and find the Transceiver
Support Matrix.
For technical details of cabling and technology, see “Cabling and Technology Information
Specifications” in Appendix A.