HP OfficeConnect 1920S 48G User Manual
HPE OfficeConnect 1920S Switch Series Installation and Getting Started Guide
Abstract
This guide provides detailed information on how to install and initially configure switches in the
HPE OfficeConnect 1920S Switch Series.
Part Number: 5200-2835a
Published: August 2017
Edition: 1
©
Copyright 2017, Hewlett Packard Enterprise Development LP
Notices
The information contained herein is subject to change without notice. The only warranties for Hewlett
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such products and services. Nothing herein should be construed as constituting an additional warranty.
Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained
herein.
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Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government
under vendor's standard commercial license.
Links to third-party websites take you outside the Hewlett Packard Enterprise website. Hewlett Packard
Enterprise has no control over and is not responsible for information outside the Hewlett Packard
Enterprise website.
Applicable products
HPE OfficeConnect 1920S 8G Switch JL380A
HPE OfficeConnect 1920S 24G 2SFP Switch JL381A
HPE OfficeConnect 1920S 48G 4SFP Switch JL382A
HPE OfficeConnect 1920S 8G PPoE+ 65W Switch JL383A
HPE OfficeConnect 1920S 24G 2SFP PPoE+ 185W Switch JL384A
HPE OfficeConnect 1920S 24G 2SFP PoE+ 370W Switch JL385A
HPE OfficeConnect 1920S 48G 4SFP PPoE+ 370W Switch JL386A
Contents
Switch overview...................................................................................... 5
Installing the switch..............................................................................13
Overview....................................................................................................................................... 5
Switch hardware features............................................................................................................. 5
Network ports..................................................................................................................... 9
LEDs.................................................................................................................................10
Mode button......................................................................................................................11
Reset button..................................................................................................................... 11
Power connector...............................................................................................................11
Switch features............................................................................................................................12
Installation overview....................................................................................................................13
Fan-free design...........................................................................................................................13
Included parts............................................................................................................................. 13
Installation precautions............................................................................................................... 14
Installation procedure..................................................................................................................15
1. Prepare the installation site..........................................................................................15
Installation space requirements.............................................................................15
2. Verify the switch passes self test................................................................................. 16
3. Mount the switch.......................................................................................................... 18
Rack or cabinet mounting......................................................................................19
Wall or under-table mounting................................................................................ 20
Horizontal surface mounting..................................................................................21
Using a Kensington security cable........................................................................ 22
4. Connect the switch to a power source......................................................................... 22
5. Connect the network cables.........................................................................................22
6. Installing or removing SFPs......................................................................................... 23
Installing the SFPs:................................................................................................23
Removing the SFPs...............................................................................................24
Connecting cables to SFPs................................................................................... 24
Configuring the switch......................................................................... 25
Initial configuration...................................................................................................................... 25
Using the 192.168.1.1 IP address...............................................................................................26
Where to go from here................................................................................................................ 26
Troubleshooting.................................................................................... 28
Overview..................................................................................................................................... 28
Basic troubleshooting tips........................................................................................................... 28
Diagnosing with the LEDs...........................................................................................................28
LED patterns for General Switch Troubleshooting...........................................................28
Diagnostic Tips.................................................................................................................29
LED Patterns for PoE Troubleshooting............................................................................ 30
Testing the switch by resetting it................................................................................................. 31
Restoring to Factory Defaults..................................................................................................... 31
Contents 3
Websites................................................................................................ 32
Support and other resources...............................................................33
Accessing Hewlett Packard Enterprise Support......................................................................... 33
Accessing updates......................................................................................................................33
Customer self repair....................................................................................................................34
Remote support.......................................................................................................................... 34
Warranty information...................................................................................................................34
Regulatory information................................................................................................................35
Documentation feedback............................................................................................................ 35
Specifications........................................................................................36
Physical.......................................................................................................................................36
Electrical......................................................................................................................................36
Environmental............................................................................................................................. 37
Acoustics.....................................................................................................................................37
Safety..........................................................................................................................................37
Standards....................................................................................................................................38
Cabling and Technology Information Specifications................................................................... 38
Technology Distance Specifications.................................................................................39
Mode Conditioning Patch Cord................................................................................................... 39
Installing the Patch Cord.................................................................................................. 40
Twisted-Pair Cable/Connector Pin-Outs..................................................................................... 40
Straight-through Twisted-Pair Cable for10 Mbps or 100 Mbps Network Connections.....41
Cable Diagram.......................................................................................................42
Pin Assignments....................................................................................................42
Crossover Twisted-Pair Cable for10 Mbps or 100 Mbps Network Connection................ 42
Cable Diagram.......................................................................................................43
Pin Assignments....................................................................................................43
Straight-Through Twisted-Pair Cable for 1000 Mbps Network Connections....................43
Cable Diagram.......................................................................................................44
Pin Assignments....................................................................................................44
4 Contents
EMC regulatory statements..................................................................45
U.S.A...........................................................................................................................................45
Canada....................................................................................................................................... 45
Australia/New Zealand................................................................................................................45
Japan.......................................................................................................................................... 45
Korea...........................................................................................................................................45
Taiwan.........................................................................................................................................45
Switch overview
21
345
Overview
The HPE OfficeConnect 1920S Switch Series are multiport switches that can be used to build highperformance 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 1920S 8G Switch, the 1920S 24G
Switch, the 1920S 48G Switch, the 1920S 8G PPoE+ Switch, the 1920S 24G PPoE+ Switch, the 1920S
24G PoE+ Switch, and the 1920S 48G PPoE+ Switch.
• The 1920S 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 1920S 24G 2SFP Switch has 24 auto-sensing 10/100/1000BASE-T RJ-45 ports and two SFP
slots for supported HPE SFP fiber-optic transceivers (ports 25 and 26).
• The 1920S 48G 4SFP Switch has 48 auto-sensing 10/100/1000BASE-T RJ-45 ports and four SFP
slots for supported HPE SFP fiber-optic transceivers (ports 49 to 52).
• The 1920S 8G PPoE+ 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 1920S 24G 2SFP PPoE+ Switch has 24 auto-sensing 10/100/1000BASE-T RJ-45 ports and two
SFP slots for supported HPE 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 1920S 24G 2SFP PoE+ Switch has 24 auto-sensing 10/100/1000Base-T RJ-45 ports and two
SFP slots for supported HPE SFP fiber-optic transceivers (ports 25 and 26). The switch supports the
IEEE 802.3at standard and is capable of providing 370 watts of PoE power through ports 1-24.
• The 1920S 48G 4SFP PPoE+ Switch has 48 auto-sensing 10/100/1000BASE-T RJ-45 ports and four
SFP slots for supported HPE 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.
Switch hardware features
HPE OfficeConnect 1920S 8G Switch (JL380A)
1
Power and Fault/Locator LEDs
Switch overview 5
2
4
5
1 2
3
1 2
3
45
PoE PD port
3
10/100/1000BASE-T RJ-45 ports
4
Link/Act and Speed LEDs
5
Reset button
HPE OfficeConnect 1920S 24G 2SFP Switch (JL381A)
1
Power and Fault/Locator LEDs
2
Link/Act and Speed LEDs
3
SFP slots
4
10/100/1000BASE-T RJ-45 ports
5
Reset button
HPE OfficeConnect 1920S 48G 4SFP Switch (JL382A)
1
Power and Fault/Locator LEDs
6 Switch overview
2
Link/Act and Speed LEDs
3
SFP slots
4
1 2 3
46 5
1 2 3 4
5
67
10/100/1000BASE-T RJ-45 ports
5
Reset button
HPE OfficeConnect 1920S 8G PPoE+ 65W Switch (JL383A)
1
Power and Fault/Locator LEDs
2
PoE+ ports 1-4
3
Link/Act and Mode LEDs
4
10/100/1000BASE-T RJ-45 ports
5
Reset button
6
Mode button
HPE OfficeConnect 1920S 24G 2SFP PPoE+ 185W Switch (JL384A)
1
Power and Fault/Locator LEDs
2
PoE+ ports 1-12
3
Link/Act and Mode LEDs
Switch overview 7
4
1 2 3 4
5
67
6
1
2 3 4 5
7
SFP slots
5
10/100/1000BASE-T RJ-45 ports
6
Mode button
7
Reset button
HPE OfficeConnect 1920S 24G 2SFP PoE+ 370W Switch (JL385A)
1
Power and Fault/Locator LEDs
2
PoE+ ports 1-24
3
Link/Act and Mode LEDs
4
SFP slots
5
10/100/1000BASE-T RJ-45 ports
6
Mode button
7
Reset button
HPE OfficeConnect 1920S 48G 4SFP PPoE+ 370W Switch (JL386A)
1
Power and Fault/Locator LEDs
8 Switch overview
2
Mode button
3
PoE+ ports 1-24
4
Link/Act and Mode LEDs
5
SFP slots
6
10/100/1000BASE-T RJ-45 ports
7
Reset button
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 1920S 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 HPE Power over Ethernet (PoE/PoE+) Planning
and Implementation Guide, which is on the Hewlett Packard Enterprise Web site at www.hpe.com/
support/hpesc.
• PoE PD port (1920S 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 HPE SFPs, these products support optional network connectivity with the following speeds and
technologies:
NOTE:
Transceivers not on the 1920S approved list are used at your own risk and may void support and
warranty. Please see the HPE Warranty terms and conditions.
Transceiver FormFactor and Connector
Speed Technology Cabling SFP Connector
100 Mbps 100-FX Fiber (multimode) LC
1
1 Gbps 1000-T Copper (twisted-pair) RJ-45
1000-SX Fiber (multimode) LC
Table Continued
Network ports 9
Transceiver FormFactor and Connector
Speed Technology Cabling SFP Connector
1
LEDs
1000-LX Fiber (multimode or
LC
single mode)
1
For supported transceivers, visit www.hpe.com/support/hpesc.
• In the first textbox, type J4858 (for 100-Mb and Gigabit information).
• Select any of the products that display, then click Show selected items.
• Select Support Center. Then click Manuals and find the Transceiver Support Matrix.
For technical details of cabling and technology, see Cabling and Technology Information
Specifications on page 38.
The front panel of the switch provides status LEDs for system monitoring. The following table details the
functions of the various indicators.
LED State Meaning
Power (green) On The switch is receiving power.
Blinking* (1920S 8G only) Power is available on the PoE In port (Port 1).
Off The switch is NOT receiving power.
Fault/Locator
(orange)
On On briefly after the switch is powered on or reset, at the beginning of
switch self test. If the LED remains on, it indicates a detected hardware
failure during the self test.
Blinking** A fault has occurred on the switch or one of the switch ports. The Link
LED for the port with the fault will blink simultaneously.
Blinking*** The LED is used to locate a specific switch in an area full of switches.
The LED blinks for 30 minutes when activated through the switch
software.
Off The normal state; indicates that there are no fault conditions on the
switch.
Link/Act(green) On The port is enabled and receiving a link indication from 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
• Green Mode has been enabled.
Table Continued
10 LEDs
LED State Meaning
Blinking Indicates that there is network activity on the port.If the Link/Act LED is
blinking simultaneously with the Fault/Locator LED, it indicates a fault
on the port. The blinking behavior (1 second on, 1 second off) is the
same as the Fault/Locator LED.
SpdMode Spd‡ (green)
Mode - PoE‡
(green)
* The blinking behavior is a 6 second on/off cycle; 5 seconds on, 1 second off.
** The blinking behavior is a 2 second on/off cycle; 1 second on, 1 second off.
*** The blinking behavior is a 4 second on/off cycle; 3 seconds on, 1 second off.
‡ (1920S PoE+ switches only) Press the Mode button in for PoE mode, leave the Mode button out for
Spd mode.
Mode button
The 1920S PoE+ switches have one Mode LED per port. The Mode LED shows either the port speed or
the PoE status. In PoE mode, it shows whether the port is configured to provide PoE power. The
operation of the Mode LED is controlled by the Mode select button. Press the Mode button in to select the
PoE mode, or leave the button in its out position for Spd (speed) mode.
On Indicates the port is operating at 1000 Mbps.
Flashing Indicates the port is operating at 100 Mbps.
Off Indicates the port is operating at 10 Mbps.
On Indicates the Port LEDs are lit for ports that are providing PoE power to
the connected device.
Blinking** There is an oversubscription condition (not enough PoE power
available) or the port has experienced a fault condition for PoE delivery.
Reset button
The Reset button is used to restore Factory Default settings, or reset the switch while it is powered on.
• Resetting the Switch — Press and release the button. This action clears any temporary error
conditions that may have occurred and executes the switch self test.
• Restoring Factory Default Configuration — Press and hold down for over 5 seconds, the switch will
then complete its self test and begin operating with its configuration restored to the factory default
settings. Any configuration changes you may have made through the web browser interface are
removed.
Power connector
The 1920S 24G, 1920S 24G PPoE+, 1920S 24G PoE+, 1920S 48G, and 1920S 48G PPoE+ Switches do
not have a power switch, they are powered on when connected to an active AC power source. The
switches automatically adjust to any voltage between 100-127 and 200-240 volts and either 50 or 60 Hz.
There are no voltage range settings required.
The 1920S 8G and 1920S 8G PPoE+ Switches do not have a power switch, they are 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 12 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.
Mode button 11
The 1920S 8G Switch can also be powered on by a PoE PD connection to Port 1.
Switch features
The features of the 1920S Switches include:
• 8, 24, or 48 auto-sensing 10/100/1000BASE-T RJ-45 ports.
• 2 or 4 SFP slots for HPE SFP transceivers (1920S 24G, 1920S 24G PoE+, 1920S 24G PPoE+ 1920S
48G, and 1920S 48G PPoE+ Switches only)
• plug-and-play networking—all ports are enabled—just connect the network cables to active network
devices and your switched network is operational.
• IEEE 802.3ab Auto MDI /MDI-X on all twisted-pair ports, meaning that all connections can be made
using straight-through twisted-pair cables. Cross-over cables are not required, although they will also
work. The pin operation of each port is automatically adjusted for the attached device: if the switch
detects that a 10/100/1000 Mbps switch or hub is connected to the port, it configures the port as MDI;
if the switch detects that a 10/100/1000 Mbps end-node device is connected to the port, it configures
the port as MDI-X.
• all switches support IEEE 802.3az Energy Efficient Ethernet (EEE) features that reduce power
consumption when connected with EEE-compliant client devices.
• automatic learning of MAC addresses in each switch’s 8K-address (8- and 24-port switches) or 16Kaddress (48-port switches) forwarding table.
• automatically negotiated full-duplex operation for all 10/100/1000BASE-T RJ-45 ports when connected
to other auto-negotiating devices
• easy management of the switch through several available interfaces:
◦ Web browser interface — an easy to use built-in graphical interface that can be accessed from
common Web browsers.
◦ Intelligent Management Center (iMC) — allows network administrators to discover and map the
switches within their network and launch the built-in graphical interface from within iMC to configure
the switches.
• support for up to 64 IEEE 802.1Q-compliant VLANs so you can divide the attached end nodes into
logical groupings that fit your business needs.
• support for up to 16 trunks (48-port switches) so you can assign physical links to one logical link
(trunk) that functions as a single, higher-speed link providing dramatically increased bandwidth.
• support for many advanced features to enhance network performance—for a description, see the
Management and Configuration Guide.
• download of new switch software for product bug fixes.
12 Switch features
Installing the switch
Installation overview
The 1920S Switches are easy to install. They come with an accessory kit that includes the brackets for
mounting the switches in a standard 19-inch telco rack, in an equipment cabinet, and with rubber feet that
can be attached so the switches can be securely located on a horizontal surface. The brackets are
designed to allow mounting of the switches in a variety of locations and orientations. This chapter shows
how to install the switches.
Fan-free design
NOTE:
The switches covered by this guide have a fan-free design, making them quiet for office
deployments. A warmer than normal enclosure is a standard state of operation for a fan-free switch.
Although the top of the switch enclosure may feel warm to the touch, it has no effect on functionality
or performance of the product.
Included parts
The following components ship with an 1920S Switch:
Documentation kit
• Quick Setup Guide
• Safety and Regulatory information
• Software License, Warranty, and Support information
• Accessory kits:
1920S 8G and 1920S 8G PPoE+ Switch
Kit number 5066-2232
• two rack 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 5066-0621
• three 3/4” (20-mm M4) screws for wall and
• three wall anchors
• cable tie for power cord
under-table mounting
Installing the switch 13
1920S 24G, 1920S 24G PPoE+, and 1920S 48G
Switch
1920S 48G PPoE+ Switch
Kit number 5069-6535
• two wall/table 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
Japan Power Cord Warning
Installation precautions
Follow these precautions when installing the switch.
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.
• When wall mounting, to meet national and international safety requirements, wall mount with the
network ports facing up. The side vents cannot be placed up or downward.
Kit number 5069-5705
• two rack 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 5092-0769
• two wall/table mounting brackets
CAUTION:
• When installing the switch, the AC outlet should be located near the switch and should be easily
accessible in case the switch must be powered off.
• Ensure that the AC power source circuits are properly grounded.
• Use only the AC/DC power adapter and power cord (if applicable), supplied with the switch. Use
of other adapters or power cords, including those that came with other Hewlett Packard
Enterprise Networking products, may result in damage to the equipment. For those switches that
use a power cord, if your installation requires a different power cord than the one supplied with
the switch, 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.
• 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. The 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 40°C (104°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.
14 Installation precautions
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