Lanpro LP-SG2401 User manual

www.lanpro.com
User Guide
LP-SG2401
10/100/1000Mbps
24 Port GigaSpeed Switch
LPSG2401_UG_ENB01W

COPYRIGHT & TRADEMARKS
Specications are subject to change without notice. LanPro is a
registered trademark of LanPro Inc. Other brands and product names
are trademarks or registered trademarks of their respective holders.
No part of the specications may be reproduced in any form or by
any means or used to make any derivative such as translation,
transformation, or adaptation without permission from LanPro Inc.
Copyright © 2015 LanPro Inc. All rights reserved.
www.lanpro.com
STATEMENT
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 when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
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.
2) This device must accept any interference received, including
interference that may cause undesired operation.
Any changes or modications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
Mark Warning
This is a class A product. In a domestic environment, this product may
cause radio interference, in which case the user may be required to
take adequate measures.

Package Contents ...................................................................... 4
Chapter 1 Product Introduction...................................... 5
1.1 Product Overview ............................................ 5
1.2 Features .......................................................... 5
1.3 IEEE 802.1p QoS ............................................ 6
Chapter 2 Identifying External Components ................ 7
2.1 Front Panel ...................................................... 7
2.2 Rear Panel ...................................................... 7
Chapter 3 Installation ..................................................... 8
3.1 Precautions ..................................................... 8
3.2 Installation ....................................................... 9
3.2.1 Desktop Installation ............................... 9
3.2.2 Rack Installation .................................... 10
3.3 Connect to Ground .......................................... 11
3.4 Power on ......................................................... 12
Appendix A: Specications ................................................ 13
Appendix B: Troubleshooting ............................................ 14
Appendix C: Contact Information ..................................... 15
CONTENTS

4
Package Contents
The following contents should be found in your box:
One LP-SG2401 24-port Gigabit Ethernet Switch.
One power cord.
The Installation Guide.
Mounting screws and two “L” brackets.
Make sure that the package contains the above items. If any of
the listed items are damaged or missing, please contact the
retailer from whom you purchased the LP-SG2401 24-port Gigabit
Ethernet Switch for assistance.
Note:

5
Chapter 1: Product Introduction
1.1 Product Overview
1.2 Features
This chapter describes the features of the LanPro model LP-SG2401 24-
port Gigabit Ethernet Switch.
The LP-SG2401 24-port Gigabit Ethernet Switch provides 24
10/100/1000Mbps Auto-Negotiation RJ45 ports. Each port of LP-SG2401
supports auto MDI/MDI-X fuction, eliminating the need for crossover cables
or Uplink ports. The switch is “Plug and Play” and each port can be simply
plugged into a server, a hub or a switch, using straight cable or crossover
cable.
The LP-SG2401 24-port Gigabit Ethernet Switch provides you with a
low-cost, easy-to-use, high-performance, seamless and standard upgrade
to improve your old network to a 1000Mbps network. It will boost your
network performance up to full duplex data transfer.
The LP-SG2401 24-port Gigabit Ethernet Switch support power saving
features to help make your network environmentally friendly without
compromising performance. The switch automatically powers down ports
that have no link.
Complies with IEEE802.3, IEEE802.3u and IEEE802.3ab
standards.
24 10/100/1000Mbps Auto-Negotiation RJ45 ports supporting
Auto-MDI/MDIX.
Supports IEEE802.3x ow control for full-duplex mode and
backpressure for half-duplex mode.
Supports IEEE802.1p QoS.
Supports power saving features.
LED indicators for monitoring power, link, activity, speed.
Rack-mountable steel case.
Internal power supply.

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1.3 IEEE 802.1p QoS
The LP-SG2401 Switch supports 802.1p priority queuing Quality of Service
(QoS), which is an implementation of the IEEE 802.1p standard. With
802.1p QoS function, you can reserve bandwidth for important functions
that require a large bandwidth or have a high priority, such as VoIP (Voice-
over Internet Protocol), web browsing applications or video conferencing.
The switch has separate hardware queues on every physical port which
packets from various applications are mapped to and assigned a priority to.
The illustration below shows how 802.1p priority queuing is implemented
on the switch.
The switch has four priority levels labeled TC0, TC1, TC2 and TC3. The
untagged packets and the eight IEEE 802.1p priority tags dened by the
standard are mapped to the four level queues used on the switch. TC3
has the highest priority of the four priority level queues while TC0 has the
lowest priority on the switch. The untagged packets and eight priority tags,
specied in IEEE 802.1p are mapped to the switch’s priority tags as follows:
The switch uses WRR (Weighted Robin Round) for scheduling. WRR
queue-scheduling algorithm schedules all the queues in turn and every
queue can be assured of a certain service time. The default weight value of
TC0, TC1, TC2 and TC3 is 1:2:4:8.
Tag untag 0 1 2 3 4 5 6 7
Priority Level TC0 TC1 TC2 TC3
Weight Value 1 2 4 8
Figure 1. Mapping QoS on the Switch
►The untagged packets, packets with priority tag 1 and 2 are
assigned to the switch’s TC0 level queue.
►Packets with priority tag 0 and 3 are assigned to the switch’s
TC1 level queue.
►Packets with priority tag 4 and 5 are assigned to the switch’s
TC2 level queue.
►Packets with priority tag 6 and 7 are assigned to the switch’s
TC3 level queue.

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Figure 2. Switch Front Panel Sketch
Figure 3. Switch Rear Panel Sketch
Power LED: This indicator will light solid green when the switch
powers up. If the LED is not lit, please check the power supply and
connection.
Link/Act LED: The LED indicates Link/Active status. The
corresponding LED indicator will light solid green when connected to
a network device. It ashes green when data is being transmitted or
received on the working connection.
1000Mbps LED: The indicator will light solid green when the
corresponding port is working on 1000Mbps speed. If the LED is off,
it is working on 10/100Mbps speed or no device is connected.
Grounding Terminal: LP-SG2401 already comes with Lightning
Protection Mechanism. You can also ground the switch through the
PE (Protecting Earth) cable of AC cord or with Ground Cable. For
detail information, please refer to section 3.3 Connect to Ground.
AC Power Socket: Connect the female connector of the power cord
here, and the male connector to the AC power outlet. Please make
sure the voltage of the power supply meets the requirement of the
input voltage.
Chapter 2: Identifying External Components
This chapter describes the front panel, rear panel and LED indicators of
the switch.
2.1 Front Panel
2.2 Rear Panel
The front panel of LP-SG2401 consists of switch model, switch LED
indicators, and 24 10/100/1000Mbps RJ45 ports.
The LED indicators include Power, Link/Act and 1000Mbps LED indicators,
which are used for monitoring and pre-troubleshooting of the switch. The
following section shows the LED indicators of the switch along with an
explanation of each indicator.
The rear panel of LP-SG2401 features a power socket and a Grounding
Terminal (markerd with ).

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To ensure a long-term and stable performance of the switch, please pay
attention to the following before the installation.
Chapter 3: Installation
3.1 Precautions
1) Safety Requirements:
▪Before cleaning the switch, cut off the power supply. Do not
clean it by the waterish cloth, and never use any other liquid
cleaning method.
▪Take waterproof measures during storage, transportation and
operation of the equipment.
▪Use only the power cord provided with the switch.
▪Make sure the voltage of the power supply meets the
requirement of the input voltage of the switch.
▪Do not push any objects into the openings of the switch.
▪Ensure the vent hole is well ventilated and unblocked.
▪Do not open or remove the cover of the switch.
When you choose a location for the switch, please follow these
guidelines:
2) Location Requirements:
▪Install the switch on a at and stable surface that can support
the entire weight of the switch with all ttings.
▪Locate the switch far from strong electromagnetic eld
generators (such as motors), vibration, dust, and direct
exposure to sunlight.
▪To ensure adequate air ow around the switch. At least 10
cm (4 inches) of space at the front and rear of the switch is
needed for ventilation.
▪Make sure that the switch will be accessible and that the
cables can be easily connected
▪Position the switch away from water and moisture sources,
be sure to provide an acceptable temperature and humidity
operating environment.

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This switch can be either installed on the standard 19-inch mountable rack
or located on the desktop.
To install the switch on the desktop, please follow the steps:
3.2 Installation
3.2.1 Desktop Installation
1) Set the switch on a at surface strong enough to support the
entire weight of the switch with all ttings.
2) Remove the adhesive backing papers from the rubber feet.
3) Turnover the switch and attach the supplied rubber feet to the
recessed areas on the bottom at each corner of the switch.
Please unplug the power cord before installing or
removing the switch.
Caution:
Please avoid any heavy thing placed on the switch.
Caution:
Figure 4. Attaching Rubber Feet
4) Upturn the switch and connect it to the network devices while
keep enough ventilation space around.
5) Connect the switch to power source with the provided power
cord.

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To install the switch in an EIA standard-sized, 19-inch rack, follow the
instructions described below:
3.2.2 Rack Installation
1) Secure the supplied rack-mounting brackets to each side of
the switch with supplied screws, as illustrated in the following
gure.
2) After the brackets are attached to the switch, use suitable
screws (not provided) to secure the brackets to the rack, as
illustrated in the following gure.
3) Connect the switch to network devices.
4) Supply power to the switch with the provided power cord.
Figure 5. Attaching Brackets
Figure 6. Mounting Switch.