Linkskey LKS-SG2419 User manual

Gigabit Ethernet Switch User Manual
1
LinksKey
LKS-SG2419
Gigabit Ethernet
Switch
User Manual
Rev. 1.0

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Safety Guidelines
Observe the following to avoid any potential harm caused from improper use.
For your safety, do not open the unit’s shell/outer case
The unit operates correctly only within 100-240 AC voltage range rating
To avoid potential short circuit and malfunction, do not expose the unit to humidity,
heat, vibration or dust
Operate it in a well-ventilated working environment

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Table of Contents
Safety Guidelines .....................................................................................................2
Chapter 1 Overview ..................................................................................................................4
1.1 Product Overview.............................................................................................4
1.2 Features............................................................................................................4
1.3 Appearance Overview ......................................................................................5
1.4 Package Contents ............................................................................................5
Chapter 2 Installation...............................................................................................................6
2.1 Installation Considerations..............................................................................6
2.2 Installation Methods.........................................................................................6
Chapter 3 Connect Switch to a Terminal.............................................................................8
Chapter 4 Troubleshooting.....................................................................................................9
4.1. Power LED doesn’t light up. Check the following: ........................................9
4.2. Link/Act LED doesn’t light up. Problems and solutions may be: .................9
Appendix Technical Specifications...................................................................................... 10

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Chapter 1 Overview
1.1 Product Overview
The Linkskey LKS-SG2419 Gigabit Ethernet Switch meets data transmission
demands of Internet bar/enterprise in one cost-effective, rack mountable and green
design. All 24 RJ45 ports support auto MDI/MDI-X, no need to worry about the cable
type, simply plug and play. The Auto-negotiation on each RJ45 port senses link speed
(10/100/1000Mbps) and duplex mode (full/half duplex mode) of its link partner and
adjust itself for optimal performance.
1.2 Features
Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, and IEEE 802.3az
24 x 10/100/1000M auto negotiation RJ45 Ports
Backplane bandwidth up to 56Gbps for better throughput
All ports support wire speed forwarding
Auto MDI/MDI-X on each port
IEEE 802.3x flow control in full duplex; Backpressure flow control in half duplex
Built-in switch mode power supply for better stability
Green design reduces energy consumption by up to 40%
Low power consumption and fanless design saves noise interference
Plug and play
19” rack mount

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1.3 Appearance Overview
Front Panel:
Figure 1. Switch Front Panel
Back Panel:
Figure 2. Switch Back Panel
1.4 Package Contents
Open the package and verify the following items:
1 xLKS-SG2419 Gigabit Ethernet Switch
1 x Power Cord
1 x User Manual
4 x Rubber Foot Pad
8 x Screw
2 x L-shaped Rack Mount Bracket
1 x Product Warranty Card
(If any of the mentioned items is missing, contact your local reseller for immediate
replacement.)
Power LED:
A solid light indicates
switch has power while
no light indicates switch
is incorrectly connected
to power outlet or there
might be a problem with
the power cord or outlet
LinkAct LED:
A solid light indicates
the corresponding port is
correctly connected; a
blinking light indicates the
port is transferring data; no
light indicates the port is
disconnected or improperly
connected
RJ45 Ports

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Chapter 2 Installation
2.1 Installation Considerations
To keep the switch in optimum working condition and prolong its lifetime, follow the
instructions below for installation:
1. Please keep the switch in a dry and well ventilated environment to avoid
possible poor stability due to excessive dust and humidity.
2. Place the unit in a safe and stable surface to avoid any possible damage
from falling.
3. Ensure an over 10cm space around the switch for proper heat dissipation.
4. Do not put heavy articles on the Switch.
5. Make sure there is an over 1.5cm vertical distance between units that overlap
each other.
6. Ensure operating power supply accords with rated input standard.
2.2 Installation Methods
There are two ways to physically install the LKS-SG2419 24-port Gigabit Switch: Set
the Switch on an operation desk and mount the Switch in a standard-sized, 19-inch
rack.
1. To set the switch on an operation desk, do as follows:
Correctly attach the included four rubber foot pads to switch’s bottom and then set it
stably on the operation desk.
Figure 3. Attach foot pad to Switch

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2. To mount the switch in a 19-inch rack, do as follows:
1) Make sure the rack is stable and well grounded.
2) Attach the included mounting brackets to both sides of the switch with the included
screws.
Figure 4. Attach L-shaped rack mount bracket to switch
3) Maneuver the bracket to make sure that the slots match and line up with screw
holes, then insert screws to fix the switch.
Figure 5. Secure switch in rack

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Chapter 3 Connect Switch to a Terminal
1. Connect the switch to a power outlet nearby using the included power cord. Make
sure the power supply accords with specified rating: 100-240V~ 50/60Hz.
Figure 6. Connect switch to a power outlet
2. Connect a RJ45 port on the switch to the PC’s NIC port using an Ethernet cable.
Figure 7. Connect a PC to the switch

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Chapter 4 Troubleshooting
4.1. Power LED doesn’t light up. Check the following:
a) Check whether the power cord is correctly connected or not.
b) Verify that power specification accords with specified rating.
4.2. Link/Act LED doesn’t light up. Problems and solutions may be:
a) The switch is not correctly connected to the remote device. Please
connect again with a new network cable.
b) Network cable length is beyond the standard range. Please reduce the
cable length between the switch and device to the standard range (The
standard distance is 100 meters.) or try a shorter cable.

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Appendix Technical Specifications
General Features
Standard
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab,
IEEE 802.3x, IEEE 802.3az(Energy saving)
Protocol
CSMA/CD Ethernet
Transmission Rate
Gigabit Ethernet
2000Mb（full duplex）
Ethernet / Fast Ethernet
10 / 100Mbps（half duplex）
20 / 200Mbps（full duplex）
Topological
Structure
Star
Network Cable
10Base-T：Cat. 3 or better UTP/STP（up to 100m）
100Base-TX：Cat. 5 or better UTP/STP ( up to 100m)
1000Base-T：Cat. 5e or better UTP/STP (up to 100m)
Port Count
24 x 10/100/1000Mbps RJ-45 Ports
Key Features
Forwarding Scheme
Store-and-Forward
MAC Address Table
8k
Packet Filter /Forwarding Rate
14880pps（10Mbps wire speed）
148800pps（100Mbps wire speed）
1488000pps（1000Mbps wire speed）
MAC Address Learning
Auto-learning / Auto-aging
Backplane Bandwidth
56Gbps
Physical Characteristics
AC Input Range
100 - 240VAC 50/60Hz 0.6A
Power Consumption
＜15.4W
Operating Temperature
0°C ～40°C (32°F ～104°F)
Storage Temperature
-40°C ～70°C (-40°F ～158°F)
Operating Humidity
10% ～90% RH Non-condensing
Storage Humidity
5% ～90% RH Non-condensing
Dimension
440 x 178 x 44mm (17.3 x 7.0 x 1.7inch)

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FCC Statement
This device 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.
This equipment has been tested and found to comply with the limits for a Class A
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 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.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this equipment.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.