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LevelOne GSW-2650 User Manual

Made by: LevelOne
Type: User Manual
Category: Switch
Pages: 16
Size: 0.2 MB

 

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LevelOne 

User Manual 

 

GSW-2650 

 

24-Port Fast Ethernet TP + 2-Port Gigabit 

Ethernet TP Switch 

 

 

 

 

Ver. 1.0.0-0712 

 

 


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FCC Warning 

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. It may cause harmful interference to radio communications if the 

equipment is not installed and used in accordance with the instructions. 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: 

y

  Reorient or relocate the receiving antenna. 

y

  Increase the separation between the equipment and receiver. 

y

  Connect the equipment into an outlet on a circuit different from that to which the 

receiver is connected.   

y

  Consult the dealer or an experienced radio/TV technician for help. 

 

CE 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. 

 

 

 

 

 

 

 

 

                                                                               

   

 


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Content 

 

INTRODUCTION...................................................................... 1

 

Features................................................................................................................ 1

 

Package Contents................................................................................................. 2

 

HARDWARE DESCRIPTION .................................................. 3

 

Physical Dimensions............................................................................................. 3

 

Front Panel ........................................................................................................... 3

 

LED Indicators ...................................................................................................... 4

 

Gigabit Port LED Indicator .................................................................................... 5

 

Rear Panel............................................................................................................ 6

 

Desktop Installation............................................................................................... 6

 

Attaching Rubber Pads ......................................................................................... 6

 

Rack-mounted Installation .................................................................................... 6

 

Power On.............................................................................................................. 7

 

NETWORK APPLICATION ..................................................... 8

 

Small Workgroup .................................................................................................. 8

 

Segment Uplink .................................................................................................... 9

 

TROUBLESHOOTING .......................................................... 10

 

Incorrect connections.......................................................................................... 10

 

 

 

Faulty or loose cables.................................................................................. 10

 

 

 

Non-standard cables.................................................................................... 10

 

 

 

Improper Network Topologies...................................................................... 11

 

Diagnosing LED Indicators ................................................................................. 11

 

 

 

Cabling ........................................................................................................ 11

 

TECHNICAL SPECIFICATION ............................................. 12

 

                                                                               

   

 


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Introduction 

 

 

 
LevelOne GSW-2650 is a multi-port Switch that can be used to build 

high-performance switched workgroup networks. This switch is a 

store-and-forward device that offers low latency for high-speed networking. The 

switch is targeted at workgroup, department or backbone computing environment. 

 

LevelOne GSW-2650 Switch has 24 auto-sensing 10/100Base-TX RJ-45 ports 

and 2 auto-detect Giga port for higher connection speed. LevelOne GSW-2650 

Switch features a store-and-forward switching scheme. This allows the switch to 

auto-learn and store source address in a 4K-entry MAC address table.   

 

 

Features 

 

„

 

Conforms to IEEE802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3ab 

1000Base-T, IEEE802.3x Flow control. 

„

 

24 10/100 TX plus 2 10/100/1000 TP 

„

 Automatic 

MDI/MDIX 

supported 

„

 

High Switch Fabric up to 8.8Gbps 

„

 

N-way Auto-Negotiation supported 

„

 Store-and-Forwarding 

Switching Architecture 

„

 

4K-entry MAC address table 

„

 

Non-Blocking full wire speed architecture 

„

 

IEEE 802.3x Flow control: 

 


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¾

  Pause-frame for full duplex mode 

¾

  Back-pressure for half duplex mode 

„

 

Fan free design   

 

Package Contents   

 

Unpack the contents of the GSW-2650 Switch and verify them against the 

checklist below: 

„

 GSW-2650 

„

 Power 

Cord 

„

 Rack-mounted 

Kit 

„

 

Four Rubber Pads 

„

 User 

Manual

 

                                                                                                         

                                                       

 

Compare the contents of the GSW-2650 Switch package with the standard 

checklist above. If any item is missing or damaged, please contact the local dealer 

for exchanging. 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                               

 

2

 

 


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Hardware Description 

 

 

This section mainly describes the hardware of the GSW-2650 Switch and gives a 

physical and functional overview on the certain switch. 

 

Physical Dimensions 

 

The GSW-2650 Switch physical dimensions

 

is

 440mm x 120mm x 44mm (W x D 

x H)

 

Front Panel 

 

The front panel of GSW-2650 Switch consists of 24 x 10/100Base-TX RJ-45 ports 

(Auto MDI/MDIX) and 2 auto-detect Giga ports which could be Copper Gigabit 

port. The LED Indicators are also located on the front panel of the switch. 

 

 

  The Front panel of GSW-2650

 

 

„

 

RJ-45 Ports (Auto MDI/MDIX):

 24 x 10/100 N-way auto-sensing for 

10Base-T or 100Base-TX connections. 

In general, 

MDI

 means connecting to another Hub or Switch while 

MDIX

 

means connecting to a workstation or PC. Therefore, 

Auto MDI/MDIX

 would 

allow connecting to another Switch or workstation without changing 

non-crossover or crossover cabling. 

„

 

2 Giga port:

 

2 auto-detect Giga ports (2 x 1000Base-T ports). 

                                                                               

 

3

 

 


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LED Indicators   

 

The LED Indicators display real-time information of systematic operation status. 

The following table provides descriptions of LED status and their meaning. 

 

LED 

Status 

Description 

Green Power 

On 

Power 

Off 

Power is not connected 

Green 

The port works in 10/100 Full-duplex mode 

Blinks 

(continuously) 

Networking is active 

Blinks 

(off for about 2 

seconds and on 

alternatively) 

The port works in 10/100 Half-duplex mode 

Act/Duplex 

Off No 

device 

attached 

Yellow 

The port works at speed of 100Mbps 

Speed 

Blinks 

The port works at speed of 10Mbps 

 

 

 

 

                                                                               

 

4

 

 


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Gigabit Port LED Indicator 

 

The following table provides descriptions of Gigabit ports’ LEDs status and their 

meaning. 

LED 

Status 

Description 

Green 

The port works in 10/100 Full-duplex or gigabit 

mode 

Blinks 

(continuously) 

Networking is active 

Blinks 

(off for about 2 

seconds and on 

alternatively) 

The port works in 10/100 Half-duplex mode 

Act/Duplex 

Off No 

device 

attached 

Green 

The port works at speed of 1000Mbps 

Speed 

Blinks 

The port works at speed of 100Mbps 

 

 

 

 

 

 

 

 

                                                                               

 

5

 

 


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Rear Panel   

 

The 3-pronged power plug is located at the rear panel of GSW-2650 as shown in 

Figure. The switch will work with AC in the voltage range of AC 100-240V and 

Frequency of 50-60Hz. 

 

 

The Rear Panel

 of GSW-2650

 

 

Desktop Installation

 

 

Set the switch on a sufficiently large flat space with a power outlet nearby. The 

surface where the user put the switch should be clean, smooth, level and sturdy. 

Make sure there is enough clearance around the switch to allow attachment of 

cables, power cord and allow air circulation. 

 

Attaching Rubber Pads

 

 

A.  Make sure mounting surface on the bottom of the switch is grease and dust 

free. 

B.  Remove adhesive backing from your Rubber Pads. 

C.  Apply the Rubber Pads to each corner on the bottom of the switch. These 

footpads can prevent the switch from shock/vibration. 

 

Rack-mounted Installation 

 

 

The GSW-2650 comes with a rack-mounted kit and can be mounted in an EIA 

standard size, 19-inch Rack. The switch can be placed in a wiring closet with 

other equipment. 

 

                                                                               

 

6

 

 


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Perform the following steps to rack mount the switch: 

 

A.  Position one bracket to align with the holes on one side of the switch and 

secure it with the smaller bracket screws. Then attach the remaining bracket 

to the other side of the switch. 

B.  After having attached mounting brackets, position the GSW-2650 Switch in 

the rack by lining up the holes in the brackets with the appropriate holes on 

the rack. Secure the switch to the rack with a screwdriver and the 

rack-mounting screws. 

 

 

 

For proper ventilation, it allows about at least 4 inches (10 cm) of 

clearance on the front and 3.4 inches (8 cm) on the back of the Switch. 

This is especially important for enclosed rack installation. 

 

Power On   

 

Connect the power cord to the power socket on the rear panel of the Switch. The 

other side of power cord connects to the power outlet. The internal power supply 

of the Switch works with voltage in the range of 100-240V

AC

 and Frequency of 

50~60Hz. Check the power indicator on the front panel to see if power is properly 

supplied. 

 

 

 

 

 

 

 

 

 

 

                                                                               

 

7

 

 


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Network Application 

 

 

This section provides you a few samples of network topology in which the switch 

is used. In general, LevelOne GSW-2650 is designed as a segment switch which 

with its large address table (4k MAC address) and high performance, it is ideal for 

interconnecting networking segments. 

 

PC, workstations, and servers can communicate each other by directly 

connecting with GSW-2650. The switch automatically learns nodes address, 

which are subsequently used to filter and forward all traffic based on the 

destination address. 

 

By using Uplink port, the switch can connect with another switch or hub to 

interconnect other small-switched workgroups to form a larger switched network.

 

 

Small Workgroup 

 

The GSW-2650 Switch can be used as a standalone switch to which personal 

computers, server, printer server, are directly connected to form a small 

workgroup. 

 

 

                                                                               

 

8

 

 


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Segment Uplink 

 
For enterprise networks where large data broadcasts are constantly processed, 

this switch is an ideal solution for department users to connect to the corporate 

backbone. 

For example, two Ethernet switches (with PCs, print server, and local server 

attached) are connected via 10/100/1000Base-TX cable. All the devices in this 

network can communicate with each other through the switches. Connecting 

servers to the switch allows other users to access the data on server. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                               

 

9

 

 


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Troubleshooting 

 

 

This section is intended to help the user solve the most common problems on the 

GSW-2650. 

 

Incorrect connections 

 

The switch port can auto-detect straight or crossover cable when the user links 

switch with other Ethernet device. The RJ-45 connector should use correct UTP 

or STP cable; 10/100Mbps ports use 2 pairs twisted cable and Gigabit 1000T 

ports use 4 pairs twisted cable. If the RJ-45 connector is not correctly pinned on 

right position then the link will fail.

 

 

„

 

Faulty or loose cables 

 

Look for loose or obviously faulty connections. If they appear to be OK, make sure 

the connections are snug. If that does not correct the problem, try a different 

cable. 

 

„

 

Non-standard cables 

 

Non-standard and miss-wired cables may cause numerous network collisions and 

other network problem, and can seriously impair network performance. A 

category 5-cable tester is a recommended tool for every 100Base-T network 

installation. 

 

 

 

 

                                                                               

 

10

 

 


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„

 

Improper Network Topologies 

 

It is important to make sure that users have a valid network topology. Common 

topology faults include excessive cable length and too many repeaters (hubs) 

between end nodes. In addition, the user should make sure that the network 

topology contains no data path loops. Between any two ends nodes, there should 

be only one active cabling path at any time. Data path loops will cause broadcast 

storms that will severely impact the network performance. 

 

Diagnosing LED Indicators   

 

To assist in identifying problems, the switch can be easily monitored through 

panel indicators, which describe common problems the user may encounter and 

where the user can find possible solutions. 

 

If the power indicator does turn on when the power cord is plugged in, the user 

may have a problem with power outlet, or power cord. However, if the switch 

powers off after running for a while check for loose power connections, power 

losses or surges at power outlet. If the problem still cannot be resolved, please 

contact the local dealer for assistance. 

 

„

 

Cabling 

 

RJ-45 ports: 

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) 

cable for RJ-45 connections: 100

Ω

 Category 3, 4 or 5 cable for 10Mbps 

connections or 100

Ω

  Category 5 cable for 100Mbps connections. Also be sure 

that the length of any twisted-pair connection does not exceed 100 meters (328 

feet). Gigabit port should use Cat-5 or cat-5e cable for 1000Mbps connections. 

The length does not exceed 100 meters.  

 

 

                                                                               

 

11

 

 


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Technical Specification 

 

 

This section provides the specifications of GSW-2650. 

 

Standard 

IEEE802.3 10BASE-T 

IEEE802.3u 100BASE-TX 

IEEE802.3ab 1000BASE-T 

IEEE802.3x Flow control and Back pressure 

LED Indicators 

System power (Green) 

Activity/Duplex (Green) 

Speed (Yellow) 

Connector 

10/100TX: 24 x RJ-45 with Auto MDI/MDI-X function 

10/100/1000TP: 2 x RJ-45 with Auto MDI/MDI-X 

Switch architecture 

Store and Forward 

Back-plane 

8.8Gbps with full wire speed 

MAC address 

4K Mac with Auto Learning 

Power Supply 

100~240V

AC, 

50/60Hz 

Power Consumption 

20Watts (Maximum) 

Operation Temp. 

0

o

C ~ 45

o

                                                                               

 

12

 

 


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Operation Humidity 

10% ~ 90% (Non-condensing) 

Storage Temp. 

-40

o

C ~ 70

o

Dimensions 

440mm x 120mm x 44mm (W x D x H) 

EMI & Safety 

FCC Class A 

CE, CE/EN60950 

 

 

 

 

 

 

 

 

 

 

                                                                               

 

13