Seagate Switch KSD 541 User Guide

Industrial 5-Port Fast Ethernet Switches  
with SFP Slot and optional 4 PoE PSE Ports  
Basic Model: KSD-541  
PoE Model: KSD-541-P  
Installation Guide  
DOC.080104  
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The information contained in this document is subject to change without prior notice. Copyright (C). All  
Rights Reserved.  
TRADEMARKS  
Ethernet is a registered trademark of Xerox Corp.  
WARNING:  
This equipment has been tested and found to comply with the limits for a ClassAdigital 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 in which case the user will be required to correct the  
interference at his own expense.  
NOTICE:  
(1) The changes or modifications not expressively approved by the party responsible for compliance  
could void the user's authority to operate the equipment.  
(2) Shielded interface cables and AC power cord, if any, must be used in order to comply with the  
emission limits.  
CISPR A COMPLIANCE:  
This device complies with EMC directive of the European Community and meets or exceeds the following  
technical standard.  
EN 55022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information  
Technology Equipment. This device complies with CISPR ClassA.  
CE NOTICE  
Marking by the symbol  
indicates compliance of this equipment to the EMC directive of the Euro-  
pean Community. Such marking is indicative that this equipment meets or exceeds the following techni-  
cal standards:  
EN 55022: Limits and Methods of Measurement of Radio Interference characteristics of Information  
Technology Equipment.  
EN50082/1:Generic Immunity Standard -Part 1:Domestic Commercial and Light Industry.  
EN 60555-2: Disturbances in supply systems caused by household appliances and similar electrical  
equipment - Part 2: Harmonics.  
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Table of Contents  
1. Introduction.................................................................................................. 5  
1.1 Features ...................................................................................................................6  
1.2 Product Panels .........................................................................................................6  
1.3 LED Indicators ..........................................................................................................6  
1.4 Specifications ...........................................................................................................7  
2. Installation .................................................................................................... 9  
2.1 Unpacking .................................................................................................................9  
2.2 Safety Cautions ........................................................................................................9  
2.3 Mounting the Switch on a Wall...................................................................................9  
2.4Din-Rail Mounting ....................................................................................................10  
2.5 Panel Mounting ........................................................................................................ 11  
2.6Applying Power ........................................................................................................ 11  
3. Making Connections.................................................................................. 13  
3.1 Making UTP Connections .......................................................................................13  
3.2 Making Fiber Connection ........................................................................................13  
3.3 Making PoE Connections .......................................................................................14  
3.4 LED Indication ........................................................................................................15  
4. Applications ............................................................................................... 16  
4.1 Applications with Basic Switch Model .....................................................................16  
4.2 Applications with PoE Switch Model .......................................................................17  
-4-  
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1. Introduction  
The switches are 5-port Fast Ethernet switches which are featured with four copper ports and one  
combo port. The combo port comes with one RJ-45 and one SFP slot. The SFP slot can be mounted  
with a fiber transceiver optionally to support a fiber connection.  
For more coming PoE (Power Over Ethernet) applications, the PoE switch model is equipped with PoE  
design in four copper ports. With proper 48VDC power supply, it is able to deliver power to four PoE PD  
devices via Cat.5 cables. This guide describes the installation information about two models as follows:  
Basic Model Industrial 5-port Fast Ethernet switch with SFP slot  
PoE Model Industrial 5-port Fast Ethernet switch with SFP slot and PoE feature  
In summary, the switch provides the following advantages:  
Plug and Play  
No configuration is required in using the switch. With the featured auto-negotiation function, the switch  
can detect and configure the connection speed and duplex automatically. The switch also provides auto  
MDI/MDI-X function, which can detect the connected cable and switch the transmission wire pair and  
receiving pair automatically. This auto-crossover function can simplify the type of network cables used.  
Fiber Connectivity  
For fiber connection, the SFP slot can be installed with an optional SFP optical fiber transceiver to  
support one fiber connection when needed.  
Power over Ethernet  
For PoE applications, four IEEE 802.3af-compliant PoE PSE ports are provided in four copper ports.  
Each PSE port can deliver +48VDC power to one PoE PD (Powered Device) via the connected Cat.5  
cable.  
Industrial Features  
For industrial environment, the devices are designed with the following enhanced features exceeding  
that of commercial Ethernet switches:  
• High and wide operating Temperature  
• Power input interface: Industrial screw terminal block and DC power jack for external  
commercial power adapter as option  
• Screw panel and DIN rail mounting support for industrial enclosure  
• Industrial-rated Emission and Immunity performance  
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1.1 Features  
Provides 5 10/100Mbps RJ-45 and one 100Mbps SFP slot  
All copper ports support auto-negotiation and auto-MDI/MDI-X detection  
Provides full wire speed forwarding  
Supports IEEE 802.3x flow control for full-duplex and backpressure for half-duplex  
Provides SFP slot for optional optical fiber connection  
Provides four IEEE 802.3af-compliant PoE PSE ports  
Provides two types of power supply interfaces - DC Jack and terminal block  
Supports stand-alone, wall,Din-Rail, and panel mounting  
Industrial-rated emission and immunity performance  
1.2 Product Panels  
The following figure illustrates the faces of the switch:  
1.3 LED Indicators  
LED  
Function  
POWER  
Power status  
LINK/ACT  
100M/10M  
PoE STATUS  
SFP/RJ-45  
Port link status and activities (Port 1 - Port 5)  
Port speed status (Port 1 - Port 5)  
Port PoE power status (Port 2 - Port 5)  
Port 1 SFP / RJ-45 selection status  
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1.4 Specifications  
Copper Ports w/h PSE (P2-P5)  
Compliance  
IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX  
Connectors  
Shielded RJ-45 jacks  
Pin assignments  
Configuration  
Auto MDI/MDI-X detection  
Auto-negotiation  
Transmission rate  
Duplex support  
Network cable  
Power over Ethernet  
10Mbps, 100Mbps  
Full/Half duplex  
Cat.5 UTP  
IEEE 802.3af-compliant PSE (function equipped in PoE Model only)  
Combo Port (P1)  
Compliance  
IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX/100Base-FX  
Fiber is selected if an SFP fiber transceiver is installed in SFP slot  
Interface Selection  
Copper Interface  
Connector  
Shielded RJ-45 jack  
Auto MDI/MDI-X detection  
Auto-negotiation or software control  
10Mbps, 100Mbps  
Pin assignments  
Configuration  
Transmission rate  
Duplex support  
Network cable  
Fiber Interface  
Connector  
Full/Half duplex  
Cat.5 UTP  
SFP slot for optional SFP type fiber transceivers  
100Mbps, Full duplex  
Configuration  
Far End Fault Support  
Network cables  
Eye safety  
Enabled  
MMF 50/125 60/125, SMF 9/125  
IEC 825 compliant  
Switch Functions  
MAC Addresses Table 1K entries  
Forwarding & filtering Non-blocking, full wire speed  
Switching technology  
Store and forward  
Maximum packet length 1536 bytes  
Flow control  
IEEE 802.3x pause frame base for full duplex operation  
Back pressure for half duplex operation  
Broadcast Storm  
Protection design  
-7-  
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Power over Ethernet Function (PoE Model)  
PSE Pin 4,5  
PSE Pin 7,8  
Positive of power voltage (Typical 48VDC)  
Negative of power voltage (Typical 48VDC)  
Discovery PD resistance 15K ~ 33K  
PDClassification  
Power delivery  
Protection  
Class 0 ~ 4  
15.4W max. (per port)  
Under voltage protection  
Over voltage protection  
Over current detection  
DC IN Power Input  
Interfaces  
DC IN Jack ( -D 6.3mm / + D 2.0mm)  
DC IN Terminal Block (screw type)  
Operating Input Voltages +6 ~ 60VDC  
Power Consumption  
PoE Function  
3W max. @7.5V (No PoE output)  
Operating input voltage: +43V ~ 54V (Typical 48V)  
DC IN Jack Interfaces Power jack -D 6.3mm / + D 2.0mm  
DC IN Terminal Block Pins: + / - / GND  
Mechanical  
Dimension (base)  
Housing  
144 x 104.5 x 26 mm  
Enclosed metal with no fan  
Mounting Support  
Din-rail mounting, Panel mounting, Wall mounting,Desktop mounting  
Environmental  
Operating Temperature Typical -20oC ~ 70oC  
Storage Temperature  
Relative Humidity  
-20oC ~ 85oC  
10% ~ 90%  
Electrical Approvals  
FCC  
CE  
Part 15 rule Class A  
EMC, CISPR22 Class A  
IEC60950-1 / EN60950  
Safety  
-8-  
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2. Installation  
2.1 Unpacking  
The product package contains:  
The switch unit  
One product CD-ROM  
2.2 Safety Cautions  
To reduce the risk of bodily injury, electrical shock, fire, and damage to the product, observe the  
following precautions.  
Do not service any product except as explained in your system documentation.  
Opening or removing covers may expose you to electrical shock.  
Only a trained service technician should service 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 has fallen into the product.  
- The product has been exposed to water.  
- The product has been dropped or damaged.  
- The product does not operate correctly when you follow the operating instructions.  
• Do not push any objects into the openings of your system. Doing so can cause fire or electric  
shock by shorting out interior 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.  
2.3 Mounting the Switch on a Wall  
The switch can be mounted on a desktop or shelf or a wall. Make sure that there is proper heat  
dissipation from and adequate ventilation around the device. Do not place heavy objects on the device.  
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2.4 Din-Rail Mounting  
The steps to mount the switch on a Din-rail are:  
One Din-rail mounting bracket is provided in the product package as shown below:  
Install the bracket on the bottom of the switch unit.  
Mount the device on a Din-rail.  
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2.5 Panel Mounting  
One panel mounting bracket is provided in the product package as shown below:  
Install the bracket on the bottom of the switch unit.  
The final dimension after panel bracket is installed is shown below:  
2.6 Applying Power  
The switch provides two types of power interfaces, terminal block and DC power jack for receiving DC  
power input from external power supply system.  
-11-  
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Using Terminal Blocks  
Three terminal contacts are provided:  
Vdc Positive (+) terminal  
VdcNegative (-) terminal  
Chassis ground  
* Working Vdc for general application: +6V ~ +60VDC  
* Working Vdc for PoE application :  
+43V ~ +54VDC (Typ. 48V)  
One 3P terminal plugs are provided together with the switch. The plug is shown below:  
Power wires : 24 ~ 12AWG (IEC 0.5~2.5mm2)  
Install the power source wires with the plug properly. Then, plug in the terminal block socket.  
Using DC Power Jack  
When an external power system is not available, the switch provides a DC jack to receive power from  
typical AC-DC power adapter alternatively.  
AC Power Adapters:  
Non-PoE applications  
PoE applications  
Optional commercial rated adapters are available for purchasing.  
Rated output DC7.5V 0.5A / 1A / 1.2A  
Rated input 100V ~ 240VAC, Output 48VDC / 24W (About 20-21W is  
reserved for PoE PDs connected.)  
Note: * Before you begin the installation, check the AC voltage of your area. The AC power  
adapter which is used to supply the DC power for the unit should have the AC voltage  
matching the commercial power voltage in your area.  
* For PoE applications, make sure the rated output power meets the required voltage  
and power consumption required by all connected PD devices. Refer to sec. 3.3 for  
more information.  
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3. Making Connections  
3.1 Making UTP Connections  
The copper ports support the following connection types and distances:  
Network Cables  
10BASE-T:  
2-pair UTP Cat. 3,4,5 , EIA/TIA-568B 100-ohm  
100BASE-TX: 2-pair / 4-pair UTP Cat. 5, EIA/TIA-568B 100-ohm  
Link distance: Up to 100 meters  
Auto MDI/MDI-X Function  
This function allows the port to auto-detect the twisted-pair signals and adapts itself to form a valid  
MDI to MDI-X connection with the remote connected device automatically. No matter a straight  
through cable or crossover cable is connected, the ports can sense the receiving pair automatically and  
configure itself to match the rule for MDI to MDI-X connection. It simplifies the cable installation.  
Auto-negotiation Function  
The ports are featured with auto-negotiation function and full capability to support connection to any  
Ethernet devices. The port performs a negotiation process for the speed and duplex configuration with  
the connected device automatically when each time a link is being established. If the connected device  
is also auto-negotiation capable, both devices will come out the best configuration after negotiation  
process. If the connected device is incapable in auto-negotiation, the switch will sense the speed and  
use half duplex for the connection.  
3.2 Making Fiber Connection  
The SFP slot must be installed with an SFP fiber transceiver for making fiber connection. Your  
switch may come with an SFP transceiver pre-installed when it is shipped.  
To install an SFP fiber transceiver into the SFP slot, the steps are:  
1. Turn off the power to the switch.  
2. Insert the SFP fiber transceiver into the SFP slot. Normally, a bail is provided for every SFP  
transceiver. Hold the bail and make insertion.  
3. Until the SFP transceiver is seated securely in the slot, place the bail in lock position.  
4. Turn on the power to the switch.  
Connecting Fiber Cables  
LC connectors are commonly equipped on most SFP transceiver modules. Identify TX and RX  
connector before making cable connection. The following figure illustrates a connection example  
between two fiber ports:  
Make sure the Rx-to-Tx connection rule is followed on the both ends of the fiber cable.  
Network Cables  
Multimode (MMF) - 50/125, 62.5/125  
Single mode (SMF) - 9/125  
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3.3 Making PoE Connections  
This section describes how to make a connection between a PSE port and a PoE PD device. For the  
PoE switch model, Port 2, Port 3, Port 4 and Port 5 are equipped with PoE PSE function. The ports  
are enabled to deliver power together with network signal to a connected powered device via Cat.5  
cable.  
To make a PoE connection, the following check points should be noted:  
1. For safety reason, the connected PoE PD (Powered Device) must be a IEEE 802.3af-compliant  
device. Incompliant devices are not supported by the PoE switch model.  
2. The Cat.5 cables used for the connections must be 4-pair cables. The power is sent over the  
spare pairs (4,5) (7,8) of the cable. The maximum distance supported is 100 meters.  
3. The DC IN power voltage supplied to the switch must be within the following range to make PoE  
function working.  
DC IN voltage range for PoE applications : +43V ~ +54V  
4. The DC IN power supplied to the switch must meet the following calculation:  
DC IN power = Sum of all connected PD power required + 3 watts  
The PSE ports are equipped with the following capabilities:  
1. Detection for an IEEE 802.3af compliant PD.  
2. No power is supplied to a device which is classified non-IEEE 802.3af complaint PD.  
3. No power is supplied when no connection exists on the port.  
4. The power is cut off immediately from powering condition when a disconnection occurs.  
5. The power is cut off immediately from powering condition when overload occurs.  
6. The power is cut off immediately from powering condition when overcurrent occurs.  
7. The power is cut off immediately from powering condition when short circuit condition occurs.  
The figure below illustrates a connection example:  
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3.4 LED Indication  
LED  
Function  
State  
Interpretation  
POWER  
Power status  
ON  
The power is supplied to the switch.  
OFF  
The power is not supplied to the switch.  
LINK/ACT  
Port link status  
ON  
A port link is established. (No traffic)  
BLINK Port link is up and there is traffic.  
OFF  
Port link is down.  
100M/10M  
PoE STATUS  
SFP/RJ-45  
Port speed status ON  
OFF  
Speed 100M is selected.  
Speed 10M is selected.  
Port PoE power ON  
OFF  
PoE power is delivered on the port.  
PoE power is shut down.  
Port1 status  
ON  
SFP is used on Port 1.  
RJ-45 is used on Port 1.  
OFF  
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4. Applications  
4.1 Applications with Basic Switch Model  
The following figure illustrates a basic switch model connects five computers via Cat.5 cables.  
The following figure illustrates a basic switch model connects four computers via Cat.5 cables and  
uplink to a fiber backbone network.  
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4.2 Applications with PoE Switch Model  
The figure below illustrates a PoE switch connects four PoE IP cameras via Cat.5 cables and uplinks to  
a fiber backbone:  
The figure below illustrates a PoE switch connects four PoE WLAN access points via Cat.5 cables and  
uplinks to a backbone:  
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The figure below illustrates a PoE switch powered by a 48V DC power adapter connects four PoE  
media converters via Cat.5 cables and uplinks to a fiber backbone:  
-18-  
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