Netis ST-3131 User manual

NETIS
16/24 Port Desk-top&
Rack-mountable Giga Ethernet
Switch
User Manual
V1.1
20010-06-18

16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch User Manual
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Certification
FCC CE
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-Consult the dealer or an experienced radio/TV technician for help.
To assure continued compliance, any changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority to operate this equipment.
(Example- use only shielded interface cables when connecting to computer or peripheral devices)
FCC Radiation Exposure Statement
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause
undesired operation.
Caution!
The manufacturer is not responsible for any radio or TV interference caused by unauthorized
modifications to this equipment. Such modifications could void the user authority to operate the
equipment

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Package Contents
The following items should be found in your package:
¾16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch
¾Power Adapter
¾Quick Installation Guide
¾Rack-mount Bracket
¾Screw
Make sure that the packets contains above items. If any of the above items is missing or
damaged, please contact your distributor.

16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch User Manual
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Content
1.INTRODUCTION..........................................................................................................................5
1.1.PRODUCT OVERVIEW................................................................................................................5
1.2.MAIN FEATURES .......................................................................................................................5
1.3.STANDARDS..............................................................................................................................6
1.4.WORKING ENVIRONMENT.........................................................................................................6
2.HARDWARE INSTALLATION..................................................................................................7
2.1.BEFORE INSTALLATION.............................................................................................................7
2.2.INSTALLATION..........................................................................................................................7
2.3.CONNECTING THE 16/24 PORT DESK-TOP&RACK-MOUNTABLE GIGA ETHERNET SWITCH TO
YOUR NETWORK...................................................................................................................................8
2.4.LED INDICATORS .....................................................................................................................8
3.TROUBLESHOOTING ................................................................................................................9

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1. Introduction
Thank you for choosing the 16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch.
1.1. Product Overview
The 16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch provides non-blocking,
wire speed switching for your 10, 100, and 1000 megabit network clients. Drop this switch in
place of your current work group hub or switch, and you can upgrade your high-requirement
workstations to full Gigabit speeds as necessary, while continuing to service other clients at
their current speeds, or build your network from the ground up, with appropriate link speeds
for each user’s requirements. Either way, it’s perfect for graphics projects, multimedia, and
other applications that need to move large files across the network quickly. With the 16/24
Port Desk-top& Rack-mountable Giga Ethernet Switch, you can connect your existing 10/100
Ethernet network to a Gigabit server backbone without any additional equipment. All ports
have automatic MDI/MDIX detection, so installation is worry free. Each port independently
and automatically negotiates for best speed and whether to run in half or full-duplex mode.
1.2.Main features
¾Compliant with the IEEE802.3 10Base-T Ethernet, IEEE802.3u 100Base-TX,
IEEE802.3ab 1000Base-T specifications
¾32/48Gbps switching fabric capacity
¾16/24 port 10/100/1000Mbps TXAuto-Negotiation Ethernet Switch
¾Full/Half-Duplex capability on each TX port (only support full duplex In1000M)
¾IEEE802.3x standard flow control for Full-duplex, optional Back Pressure function for
Half-duplex operation
¾Supports TP interface Auto MDIX function for auto TX/RX swap
¾Support 8K MAC address table
¾LED indicators for simple diagnostics and management
¾Plug and Play

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1.3.Standards
¾IEEE 802.3 10Base-T
¾IEEE 802.3u 100Base-TX
¾IEEE802.3ab 1000Base-T
¾IEEE 802.3x Flow Control
1.4.Working environment
Temperature
¾0° to 40° C (operating)
¾-20° to 70° C (storage)
Humidity
¾10% to 85 % non-condensing (operating)
¾5% to 90% non-condensing (storage)
Power
¾100 - 240VAC, 50 - 60Hz

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2. Hardware Installation
2.1.Before installation
The setup of the Switch can be performed using the following steps:
¾Install the 16/24 Port Desk-top& Rack-mountable Giga Ethernet Switch in a fairly cool
and dry place. See Working environment for the acceptable operation temperature and
humidity ranges
¾Install the Switch in a site free from strong electromagnetic source, vibration, dust, and
direct sunlight.
¾Leave at least 10cm of space at the left and right hand side of the Switch for ventilation.
¾Visually inspect the AC power jack and make sure that it is fully secured to the power
adapter.
¾Do not stack any device upon the Switch
2.2.Installation
¾Desktop or Shelf Installation
When installing the Switch on a desktop or shelf, the rubber feet included with the device
must be first attached. Attach these cushioning feet on the bottom at each corner of the device.
Allow enough ventilation space between the device and the objects around it.
¾Rack Installation
The Switch can be mounted in an EIA standard size, which can be placed in a wiring closet
with other equipment. To install, attach the mounting brackets on the switch’s front panel
(one on each side) and secure them with the screws provided. Then, use the screws provided
with the equipment rack to mount the Switch in the rack.

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2.3.Connecting the 16/24 Port Desk-top&
Rack-mountable Giga Ethernet Switch to Your
Network
Description Function
PWR Connect to Power adapter, please don’t use the unknown power
adapter, otherwise your device may be damaged.
1X-16X/24X
These ports support network speeds of 10Mbps, 100Mbps or
1000Mbps, and can operate in half and full duplex transfer
modes. These ports also support automatic MDI/MDIX
crossover detection, which gives the Switch true ‘plug and play’
capabilities. Just connect any network cable between the Switch
and the device, and The Switch will automatically detect the
settings of the device and adjust itself accordingly.
2.4.LED Indicators
The LED Indicators will allow you to monitor, diagnose and troubleshoot any potential
problem with the switch, connection or attached devices.
LED Function
PWR On Power on
Off Power off
LINK/ACT
ON Corresponding port connection normal
Flash Corresponding port data transmitting
Off Corresponding port connection abnormal
1000M ON Corresponding port works at1000Mbps
OFF Corresponding port works at 10/100Mbps

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3. Troubleshooting
1. The Power LED is not lit
¾Check if the AC power cord is well connected. Try to unplug and plug back in the power
cord to the switch or try another power outlet.
2. The Link LED is not lit
¾Make sure the network configuration of connecting device is correct, and network card
and drivers are installed correctly.
¾Check the cable connections.
¾Make sure the cable distance between the switch and other IEEE802.3 compatible
network device does not exceed 100 meters.
3. Performance is bad
¾Check the status of Ethernet switching. If Ethernet switching is set to full-duplex on one
device but a partner is set to half-duplex, then performance will be poor.
¾Make sure the cable between the switch and other IEEE802.3 compatible network device
is Category 5 UTP or better.
4. Some devices can’t talk to other devices on the network
¾Check status of the Link LEDs to make sure devices are linked.
¾Make sure that the devices' network configurations are correct.
¾Reset the switch if needed.