NETGEAR GS750E Manual

48-Port Gigabit Ethernet Smart
Managed Plus Switch
Hardware Installation Guide
August 2017
202-11785-02
350 E. Plumeria Drive
San Jose, CA 95134
USA

Support
Thank you for purchasing this NETGEAR product.You can visit www.netgear.com/support to register your
product, get help, access the latest downloads and user manuals, and join our community.We recommend that
you use only official NETGEAR support resources.
Conformity
For the current EU Declaration of Conformity, visit http://kb.netgear.com/app/answers/detail/a_id/11621.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
Trademarks
©NETGEAR, Inc., NETGEAR, Auto Uplink, and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any
non-NETGEAR trademarks are used for reference purposes only.
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Contents
Chapter 1 Introduction
Overview................................................................................................................5
Features.................................................................................................................5
Safety Instructions and Warnings..........................................................................6
Chapter 2 Hardware Overview
Front Panel...........................................................................................................10
Back Panel...........................................................................................................10
LEDs....................................................................................................................10
Switch Hardware Interfaces.................................................................................11
RJ-45 Ports for 10/100/1000M BASE-T Ethernet Connectivity.......................11
Factory Defaults Button...................................................................................12
Chapter 3 Installation
Step 1: Prepare the Site.......................................................................................14
Step 2: Protect Against Electrostatic Discharge...................................................14
Step 3: Unpack the Switch...................................................................................15
Step 4: Install the Switch......................................................................................16
Install the Switch in a Rack.............................................................................16
Install the Switch on a Flat Surface.................................................................17
Optional Step 5: Install SFP Transceiver Modules...............................................17
Step 6: Check the Installation..............................................................................18
Step 7: Apply Power and Check the LEDs...........................................................19
Step 8: Manage the Switch..................................................................................19
Chapter 4 Desktop Switching
Chapter 5Troubleshooting
Troubleshooting Chart..........................................................................................22
Additional Troubleshooting Suggestions..............................................................22
3

1
Introduction
This hardware installation guide is for the NETGEAR GS750E 48-Port Gigabit Smart Managed Plus Switch with
two SFP ports.The GS750E provides forty-eight 10/100/1000M BASE-T RJ-45 copper ports with two dedicated
100 Mb or 1 Gb SFP fiber ports.The switch can be mounted in a rack or on a desktop.
The hardware installation guide complements the installation guide that came with your switch.
This chapter serves as an introduction to the switch and includes the following sections:
•Overview
•Features
•Safety Instructions and Warnings
For more information about the topics that are covered in this manual, visit the support website
at support.netgear.com.
Note
For technical specifications, see the data sheet at
netgear.com/business/products/switches/web-managed/.Foradditionalswitchdocumentation,
visit downloadcenter.netgear.com.
Note
4

Overview
The switch provides forty-eight 10/100/1000M BASE-T RJ-45 copper ports that support nonstop Layer 2
networks.Two additional ports can accept small form-factor pluggable (SFP) 100M or 1G fiber optical
modules.
You can create high-speed connections using the 1G ports.For example, you can do the following:
•Connect switches to each other with high-speed links (using link aggregation)
•Link to high-speed servers
•Provide 10/100/1000M copper and 100M or 1G fiber connectivity
The switch provides administrative management options that let you configure, monitor, and control the
network. Using the web management interface, you can configure the switch, and the network, including
the ports, the managementVLAN,VLANs for traffic control, link aggregation for increased bandwidth, Quality
of Service (QoS) for prioritizing traffic, and network security.
You can use the web browser-based management interface to enable initial discovery of the switch on the
network and to configure the switch, or you can install the configuration utility on your Windows-based
computer. If you do not use a Windows-based computer, get the IP address of the switch from the DHCP
server in the network or use an IP scanner utility.
The configuration utility runs on Windows-based computers.Visit
netgear.com/support/product/PCU to download the utility to configure your switch.
Note
After discovery, you can configure the switch using the web management interface or the configuration utility
for basic or advanced setup. For more information, see the user manual which you can download from
downloadcenter.netgear.com.
You can install the switch on a desktop or rack-mount it in a wiring closet or equipment room.The switch is
IEEE compliant and offers low latency for high-speed networking. All ports can automatically negotiate to
the highest speed, which makes the switch very suitable for a mixed environment with Fast Ethernet and
Gigabit Ethernet.
Use Category 5e (Cat 5e) or higher rated Ethernet cables terminated with RJ-45 connectors to make 1-Gigibit
connections.
Features
The switch includes the following key hardware features:
•Forty-eight 10M/100M/1G Ethernet ports.
•Two dedicated SFP fiber ports.
•MAC table size of 16K entries.
•100 Gbps switch fabric full duplex nonblocking.
•System password.
•DHCP client.
•Includes the following mounting hardware:
Introduction
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48-Port Gigabit Ethernet Smart Managed Plus Switch

-Rack-mount kit
-Rubber feet (desktop mounting).
•Full compatibility with IEEE standards:
-IEEE 802.3 Ethernet
-IEEE 802.3u 100BASE-T
-IEEE 802.3i 10BASE-T
-IEEE 802.3z Gigabit Ethernet 1000BASE-SX/LX
-IEEE 802.3ab 1000BASE-T
-IEEE 802.1Q VLAN tagging
-IEEE 802.3x Full-duplex flow control
-IEEE 802.3ad Link aggregation (LAG with LACP)
-IEEE 802.1p Class of Service (QoS and DSCP)
-IEEE 802.3az Energy Efficient Ethernet (EEE)
•AutoSensing and autonegotiating capabilities for all ports.
•Auto Uplink™technology is supported on all ports.
•Automatic address learning function to build the packet-forwarding information table.The table contains
up to 16K Media Access Control (MAC) addresses.
•Store-and-forward transmission to remove bad packets from the network.
•Full-duplex IEEE 802.3x pause frame flow control.
•Active flow control to minimize packet loss and frame drops.
•Half-duplex backpressure control.
•NETGEAR green power-saving features:
-Energy efficiency mode that fully conforms to the IEEE802.3az standard
-Per-port automatic change to a lower power mode when the port link is down
Safety Instructions andWarnings
Use the following safety guidelines to ensure your own personal safety and to help protect your system from
potential damage.
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the following
precautions:
•This product is designed for indoor use only in a temperature-controlled (0–50°C) and humidity-controlled
(90 percent maximum relative humidity, noncondensing) environment.
Introduction
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Any device that is located outdoors and connected to this product must be properly grounded and surge
protected.
To the extend permissible by applicable law, failure to follow these guidelines can result in damage to
your NETGEAR product, which might not be covered by NETGEAR’s warranty.
•Observe and follow service markings:
-Do not service any product except as explained in your system documentation.
-Opening or removing covers that are marked with the triangular symbol with a lightning bolt can
expose you to electrical shock.We recommend that only a trained technician services components
inside these compartments.
•If any of the following conditions occur, unplug the product from the electrical outlet and replace the part
or contact your trained service provider:
-The power cable, extension cable, or plug is damaged.
-An object fell into the product.
-The product was exposed to water.
-The product was dropped or damaged.
-The product does not operate correctly when you follow the operating instructions.
•Keep your system away from radiators and heat sources. Also, do not block cooling vents.
•Do not spill food or liquids on your system components, and never operate the product in a wet
environment.If the system gets wet, see the appropriate section in your troubleshooting guide, or contact
your trained service provider.
•Do not push any objects into the openings of your system.Doing so can cause fire or electric shock by
shorting out interior components.
•Use the product only with approved equipment.
•Allow the product to cool before removing covers or touching internal components.
•Operate the product only from the type of external power source indicated on the electrical ratings label.
If you are not sure of the type of power source required, consult your service provider or local power
company.
•To avoid damaging your system, be sure that the voltage selection switch (if provided) on the power
supply is set to match the power at your location:
-115V, 60 Hz in most of North and South America and some Far Eastern countries such as South
Korea and Taiwan
-100V, 50 Hz in eastern Japan and 100V, 60 Hz in western Japan
-230V, 50 Hz in most of Europe, the Middle East, and the Far East
•Be sure that attached devices are electrically rated to operate with the power available in your location.
•Use only approved power cables. If you were not provided with a power cable for your system or for
any AC-powered option intended for your system, purchase a power cable approved for your country.
The power cable must be rated for the product and for the voltage and current marked on the product
Introduction
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48-Port Gigabit Ethernet Smart Managed Plus Switch

electrical ratings label.The voltage and current rating of the cable must be greater than the ratings
marked on the product.
•To help prevent electric shock, plug the system and peripheral power cables into properly grounded
electrical outlets.
•The peripheral power cables are equipped with three-prong plugs to help ensure proper grounding. Do
not use adapter plugs or remove the grounding prong from a cable.If you must use an extension cable,
use a three-wire cable with properly grounded plugs.
•Observe extension cable and power strip ratings.Make sure that the total ampere rating of all products
plugged into the extension cable or power strip does not exceed 80 percent of the ampere ratings limit
for the extension cable or power strip.
•To help protect your system from sudden, transient increases and decreases in electrical power, use a
surge suppressor, line conditioner, or uninterruptible power supply (UPS).
•Position system cables and power cables carefully. Route cables so that they cannot be stepped on or
tripped over. Be sure that nothing rests on any cables.
•Do not modify power cables or plugs. Consult a licensed electrician or your power company for site
modifications.
•Always follow your local and national wiring rules.
Introduction
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48-Port Gigabit Ethernet Smart Managed Plus Switch

2
Hardware Overview
This chapter describes the switch hardware features.
The chapter includes the following sections:
•Front Panel
•Back Panel
•LEDs
•Switch Hardware Interfaces
9

Front Panel
The GS750E switch provides forty-eight 10/100/1000M BASE-T RJ-45 ports.The following figure shows
the front panel.
Figure 1. Front panel
DescriptionNumber
Power LED (see LEDs on page 10)1
Recessed Factory Defaults button2
Forty-eight independent 10/100/1000M BASE-T RJ-45 ports (see LEDs on page 10)3
Two SFP ports (see LEDs on page 10)4
Back Panel
The switch integrates a fixed, internal power supply unit (PSU).
The back panel contains a Kensington lock slot and the AC power connector.
Figure 2. Back panel
DescriptionNumber
Kensington lock slot1
AC power connector2
LEDs
This section describes the LEDs on the front panel of the switch.
Hardware Overview
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Table 1. Front panel LEDs
DescriptionLED
Solid green.The device is powered on.
Off. Power is not supplied to the device.
Power LED
Off. No link is established.
Solid green. A valid 1000 Mbps link is established.
Blinking green.The port is transmitting or receiving packets at
1000 Mbps.
Solid amber. A valid 10 Mbps or 100 Mbps link is established.
Blinking amber.The port is transmitting or receiving packets at
10 Mbps or 100 Mbps.
RJ-45 LEDs 1–48.
These LEDs indicate
the link status, speed,
and activity of an
associated port.
Off. No link is established.
Solid green. A valid 1000 Mbps link is established.
Blinking green.The port is transmitting or receiving packets at
1000 Mbps.
Solid amber. A valid 100 Mbps link is established.
Blinking amber.The port is transmitting or receiving packets at
100 Mbps.
Link and ACT Mode
LEDs for SFP fiber
ports
Switch Hardware Interfaces
The following sections describe the hardware interfaces on the switch.
RJ-45 Ports for 10/100/1000M BASE-T Ethernet Connectivity
All RJ-45 copper ports support autosensing.When you insert a cable into an RJ-45 port, the switch
automatically ascertains the maximum speed (10 Mbps, 100 Mbps, or 1 Gbps) and duplex mode (half-duplex
or full-duplex) of the attached device.All ports support a Category 5e (Cat 5e) cable (or higher rated Ethernet
cable) terminated with an 8-pin RJ-45 connector.
To simplify the procedure for attaching devices, all RJ-45 ports support Auto Uplink technology.This
technology allows attaching devices to the RJ-45 ports with either straight-through or crossover cables.
When you insert a cable into the switch’s RJ-45 port, the switch automatically performs the following actions:
•Senses whether the cable is a straight-through or crossover cable.
•Determines whether the link to the attached device requires a normal connection (such as when you
are connecting the port to a computer) or an uplink connection (such as when you are connecting the
port to a router, switch, or hub).
•Automatically configures the RJ-45 port to enable communications with the attached device.The Auto
Uplink technology compensates for setting uplink connections while eliminating concern about whether
to use crossover or straight-through cables when you attach devices.
Hardware Overview
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Factory Defaults Button
The switch provides a Factory Defaults button on the front panel so that you can return the switch to its
factory default settings, causing all custom settings to be erased.
To return the switch to its factory default settings:
1. Insert a device such as a straightened paper clip into the opening.
2. Press the recessed Factory Defaults button for more than three seconds.
The switch reboots and returns to its factory default settings.
Hardware Overview
12
48-Port Gigabit Ethernet Smart Managed Plus Switch

3
Installation
This chapter describes the installation procedures for the switch.Switch installation involves the steps described
in the following sections:
•Step 1: Prepare the Site
•Step 2: Protect Against Electrostatic Discharge
•Step 3: Unpack the Switch
•Step 4: Install the Switch
•Optional Step 5: Install SFP Transceiver Modules
•Step 6: Check the Installation
•Step 7: Apply Power and Check the LEDs
•Step 8: Manage the Switch
13

Step 1: Prepare the Site
Before you install the switch, make sure that the operating environment meets the site requirements that
are listed in the following table.
Table 2. Site requirements
RequirementsCharacteristics
Desktop installations. Provide a flat table or shelf surface.
Rack-mount installations.Use a 19-inch (48.3-centimeter) EIA standard equipment rack
that is grounded and physically secure.You also need the rack-mount kit that is supplied
with the switch.
Mounting
Locate the switch in a position that allows you to access the front panel ports, view the front
panel LEDs, and access the power connector on the back panel.
Access
Use the AC power cord that is supplied with the switch. Make sure that the AC outlet is not
controlled by a wall switch, which can accidentally turn off power to the outlet and the switch.
Power source
Route cables to avoid sources of electrical noise such as radio transmitters, broadcast
amplifiers, power lines, and fluorescent lighting fixtures.
Cabling
Temperature. Install the switch in a dry area with an ambient temperature between 32ºF
and 122ºF (0ºC and 50ºC).Keep the switch away from heat sources such as direct sunlight,
warm-air exhausts, hot-air vents, and heaters.
Operating humidity.The maximum relative humidity of the installation location must not
exceed 90 percent, noncondensing.
Ventilation. Do not restrict airflow by covering or obstructing air inlets on the sides of the
switch. Keep at least 2 inches (5.08 centimeters) free on all sides for cooling.The room or
wiring closet in which you install the switch must provide adequate airflow.
Operating conditions. Keep the switch at least 6 feet (1.83 meters) away from the nearest
source of electromagnetic noise, such as a photocopy machine.
Environmental
Step 2: Protect Against Electrostatic Discharge
WARNING:
Static electricity can harm delicate components inside your system.To prevent
static damage, discharge static electricity from your body before you touch
any of the electronic components, such as the microprocessor.You can do
so by periodically touching an unpainted metal surface on the switch.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

•When unpacking a static-sensitive component from its shipping carton, leave it in the antistatic package
until you are ready to install it.Just before unwrapping the antistatic package, discharge static electricity
from your body.
•Before moving a sensitive component, place it in an antistatic container or package.
•Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads, workbench
pads, and an antistatic grounding strap.
Step 3: Unpack the Switch
The following figure shows the package contents.
Figure 3. Switch package contents
Check the contents of the boxes to make sure that all items are present before installing the switch.
To check the package contents:
1. Place the container on a clean flat surface, and cut all straps securing the container.
2. Unpack the hardware from the boxes by carefully removing the hardware and placing it on a secure
and clean surface.
3. Remove all packing material.
4. Verify that the package contains the following items:
•Switch of the correct model
•Power cord
•Rubber protection caps
•Rack-mounting kit
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

•Rubber footpads for tabletop installation
•Installation guide
5. If any item is missing or damaged, contact your local NETGEAR reseller for replacement.
Step 4: Install the Switch
You can install the switch in a standard 19-inch (48.26-centimeter) network equipment rack or on a flat
surface.
Install the Switch in a Rack
To install the switch in a rack, you need the 19-inch rack-mount kit supplied with the switch.
To install the switch in a rack:
1. Attach the supplied mounting brackets to the side of the switch.
2. Insert the screws provided in the product package through each bracket and into the bracket mounting
holes in the switch.
3. Tighten the screws with a No. 2 Phillips screwdriver to secure each bracket.
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

4. Align the mounting holes in the brackets with the holes in the rack, and insert two pan-head screws with
nylon washers through each bracket and into the rack.
5. Tighten the screws with a No. 2 Phillips screwdriver to secure mounting brackets to the rack.
Figure 4. Switch package contents
Install the Switch on a Flat Surface
The switch ships with four self-adhesive rubber footpads.
To install the switch on a flat surface:
Stick one rubber footpad on each of the four concave spaces on the bottom of the switch.
The rubber footpads cushion the switch against shock and vibrations.They also provide ventilation
space between stacked switches.
Optional Step 5: Install SFPTransceiver Modules
The following optional procedure describes how to install an optional SFP transceiver module into one of
the SFP ports of the switch.
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Contact your NETGEAR reseller to purchase these modules. If you do not want to
install an SFP module, skip this procedure.
Note
To install an SFP transceiver module:
1. Insert the transceiver into the SFP port.
2. Press firmly on the flange of the module to seat it securely into the connector.
Step 6: Check the Installation
Before you apply power to the switch, perform the steps that are described in this section.
To check the installation:
1. Inspect the equipment thoroughly.
2. Verify that all cables are installed correctly.
3. Check cable routing to make sure that cables are not damaged or creating a safety hazard
4. Make sure that all equipment is mounted properly and securely.
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

Step 7: Apply Power and Check the LEDs
The switch does not provide an on/off power switch.The power cord connection controls the power.
Before connecting the power cord, select an AC outlet that is not controlled by a wall switch, which can turn
off power to the switch.
To apply power:
1. Connect the end of the power cord to the AC power receptacle on the back of the switch.
2. Plug the AC power cord into a power source such as a wall socket or power strip.
3. Check to see that the LEDs on the front panel of the switch light correctly.
When you apply power, the Power LED on the switch front panel lights and the ports LEDs for attached
devices light.
If the Power LED does not light, check to see that the power cord is plugged in correctly and that the
power source is good.
Step 8: Manage the Switch
The switch contains built-in web browser–accessible software for viewing, changing, and monitoring the
way it functions.This management software is not required for the switch to work.You can use the ports
without using the management software. However, the management software enables the setup ofVLAN
and trunking features and also improves the efficiency of the switch, which results in the improvement of its
overall performance as well as the performance of the network.
After you power on the switch for the first time, you can configure the smart managed switch using the web
management interface for advanced setup and configuration of features, or the Smart Control Center program
(which requires a Windows-based computer) for very basic setup.For more information about managing
the switch, see the installation guide and the user manual, which you can download from
downloadcenter.netgear.com.
The switch’s default IP address is 192.168.0.239 and its default subnet mask is
255.255.255.0.
Note
Installation
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48-Port Gigabit Ethernet Smart Managed Plus Switch

4
Desktop Switching
The switch is designed to provide flexibility in configuring network connections.The switch can be used as your
only network traffic-distribution device or with 10 Mbps, 100 Mbps, and 1 Gbps hubs, routers, and switches.
You can use the switch as a desktop switch to build a small network that provides up to 1 Gbps access to a file
server.
With 1G connections, the switch always functions in full-duplex mode.Any switch port that is connected to a
computer or file server can provide up to 2 Gbps bidirectional throughput.
Figure 5. Desktop switching
20