MiLAN MIL-S24002TGXX User manual

Rev.B
08-DEC2005
MIL-S24002TGxx
24-port 10/100/1000 TX
2 Combo SFP Slots
Unmanaged Switch
User Guide

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Regulatory Approval
- FCC Class A
- UL 1950
- CSA C22.2 No. 950
- EN60950
- CE
- EN55022 Class A
- EN55024
Canadian EMI Notice
This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numerique de la classe A respecte toutes les exigences du Reglement sur le materiel brouilleur du
Canada.
European Notice
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low Voltage Directive
(73/23/EEC) issued by the Commission of the European Community Compliance with these directives imply
conformity to the following European Norms:
EN55022 (CISPR 22) - Radio Frequency Interference
EN61000-X - Electromagnetic Immunity
EN60950 (IEC950) - Product Safety
Five-Year Limited Warranty
MiLAN Technology warrants to the original consumer or purchaser that each of it's products,
and all components thereof, will be free from defects in material and/or workmanship for a
period of five years from the original factory shipment date. Any warranty hereunder is
extended to the original consumer or purchaser and is not assignable.
MiLAN Technology makes no express or implied warranties including, but not limited to, any
implied warranty of merchantability or fitness for a particular purpose, except as expressly set
forth in this warranty. In no event shall MiLAN Technology be liable for incidental or
consequential damages, costs, or expenses arising out of or in connection with the
performance of the product delivered hereunder. MiLAN Technology will in no case cover
damages arising out of the product being used in a negligent fashion or manner.
Trademarks
The MiLAN logo and MiLAN Technology trademarks are registered trademarks of MiLAN Technology in
the United States and/or other countries.
To Contact MiLAN Technology
For prompt response when calling for service information, have the following information ready:
- Product serial number and revision
- Date of purchase
- Vendor or place of purchase
You can reach MiLAN Technology technical support at:
E-mail: [e-mail]
Telephone: [phone]
Fax: [phone]
MiLAN Technology
1329 Moffett Park Drive
Sunnyvale, CA 94089
United States of America
Telephone: [phone]
Fax: [phone]
http://www.milan.com
[email protected]
© Copyright 2004 MiLAN Technology

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Content
1. Introduction ............................................................................. 1
Features.................................................................................... 1
Package Contents..................................................................... 2
2. Hardware Description.............................................................. 3
Front Panel ............................................................................... 3
Rear Panel................................................................................ 3
LED Indicators .......................................................................... 4
3. Installation ............................................................................... 6
4. Network Application................................................................ 7
5. Troubleshooting ...................................................................... 8
6. Technical Specification........................................................... 9

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1. Introduction
The 24-port 10/100/1000 TX plus 2 combo SFP Slots Switch is an ideal solution for solving
traffic block at the core of the network. It offers 24 x auto-negotiating 10/100/1000Base-T
Gigabit Ethernet ports that can significantly improve your network backbone performance.
This Switch will fit into any enterprise level network to act as an exit to the backbone switch.
It also provides 2 SFP Gigabit port for gigabit network connection.
The 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch features Auto MDI/MDIX
function for each port. [In general, MDI means connecting to another Hub or Switch while
MDIX means connecting to a workstation or PC. Therefore, Auto MDI/MDIX means that you
can connect to another Switch or workstation without changing non-crossover or crossover
cabling. The switch also features a store-and-forward switching and can auto-learn and
store source address on a 8K MAC address table.
Features
Compatible with IEEE 802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3z
gigabit fiber and IEEE802.3ab 1000Base-T
24 ports gigabit switch with two COMBO SFP SLOTS
Automatic MDIX for all ports
8K entry MAC address table
9K Jumbo Frame support
2Mbits Memory buffer
IEEE802.3x flow control:
Pause frame for 10/100/1000Mbps full duplex
Backpressure for 10/100 Mbps half duplex
2 COMBO SFP SLOTS for SFP transceiver
Store-and-Forward architecture support
One DC fan for good ventilation and to increase system heat sink performance
19 inch Rack mount design

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Package Contents
The 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch
Power Cord
Four Rubber Feet
User Manual
The 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch Power Cord
User Guide Rubber Feet
Figure 1-1. Package Contents
Compare the contents of your 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch
package with the standard checklist above. IF any item is missing or damaged, please
contact your local dealer for service.

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2. Hardware Description
This Section describes the hardware of the 24-port 10/100/1000 TX plus 2 Combo SFP
Slots Switch.
The physical dimensions of the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch is:
440 x 224 x 44 mm (W x D x H)
Front Panel
The Front Panel of the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch consists of
24 x auto-negotiation 10/100/1000Mbps Ethernet RJ-45 connectors (support Automatic
MDI/MDIX function), two Combo SFP Slots slot, and LED-indicators (100/1000,
Link/Activity, Full duplex/Collision) for each Gigabit port and power LED-indicator for unit.
Figure 2-1. The Front Panel of the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch
RJ-45 Ports (Auto MDI/MDIX): 24 x auto-negotiation 10/100/1000 Mbps Ethernet
RJ-45 connectors
[Auto MDI/MDIX means that you can connect to another switch or workstation without
changing straight through or crossover cabling.]
Combo SFP Slots ports: It is port 23 and 24 and support 3.3V. It auto detects
between Giga copper and Combo SFP Slots. Combo SFP Slots module is optional.
There are 2 LED indicators for Combo SFP Slots port – LNK and ACT. When the
Combo SFP Slots module is not installed, the port 23 and 24 is the 10/100/1000
copper only.
[Note] When the Combo SFP Slots module is installed, Combo SFP Slots have a default
priority over 10/100/1000 copper port. It doesn’t matter whether copper port has a valid link.
When SFP is in the slot copper ports are disabled.
Rear Panel

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The 3-pronged power plug, on/off switch, and Ventilation fan are located at the rear Panel
of the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch as shown in Figure 2-2. The
Switch will work with AC in the range 100-240V AC, 50-60Hz.
Figure 2-2. Rear panel of the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch
LED Indicators
The LED Indicators gives a real-time indication of system operating statuses. There are 3
LED-indicators (1000, LNK/ACT, FDX/COL) for each Gigabit port and one Power LED for
unit. The following table provides descriptions of LEDs status and their meaning.
Figure 2-3.LED Indicators
LED Status Description
Green Power On
Power
Off Power is not connected
Green The port is operating at the speed of 1000Mbps.
1000
Off No device attached or in 10/100Mbps mode
Green The port is connecting with the device.
Blinking The port is receiving or transmitting data.
LNK/ACT
Off No device attached.
FDX/COL Orange The port is operating in Full-duplex mode.

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Blinking Packet collision occurred on this port.
Off No device attached or in half-duplex mode.
Table 2-1. The Descriptions of LED Indicators
Combo SFP Slots LED
2 Combo SFP Slots ports have two LED indicators – LNK and ACT. The following table
provides descriptions of LEDs status and their meaning.
Figure 2-4. Combo SFP Slots port LED Indicators
LED Status Description
Green The port is connecting with device.
LNK
Off No device attached.
Green
(Blinking)
The port is transmitting or receiving the data.
ACT
Off No data transmitting or receiving.
Table 2-2. The Descriptions of Combo SFP Slots LED Indicators

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3. Installation
This section shows the installation procedures of the switch.
Set the Switch on a sufficiently large flat space with a power outlet nearby. The surface
where you put your 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 air
circulation.
Attaching Rubber Feet
•Make sure mounting surface on the bottom of the Switch is grease and dust free.
•Remove adhesive backing from your Rubber Feet.
•Apply the Rubber Feet to each corner on the bottom of the Switch. These footpads can
prevent the Switch from shock/vibration.
Power On
Connect the cord of power adapter to the power socket on the rear panel of the Switch. The
other side of power cord connects to the power outlet. Check the power indicator on the
front panel to see if power is properly supplied.

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4. Network Application
This section provides you one sample of network topology in which the 24-port 10/100/1000
TX plus 2 Combo SFP Slots Switch is used. In general, the 24-port 10/100/1000 TX plus 2
Combo SFP Slots Switch is designed as a high-bandwidth backbone switch.
You can use the 24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch to connect
servers, switches, workstation, and PCs to each other by connecting these devices directly
to the Switch. The Switch automatically learns node address, which are subsequently used
to filter and forward all traffic based on the destination address. You can use Gigabit fiber
port to connect with fiber network that extend the Ethernet network to fiber network.
For enterprise networks where large data broadcast are constantly processed, this switch is
an ideal suitable for departmental switches to connect to the Core Switch. All ports can
connect to departmental switches, and the departmental switches can be connected to the
24-port 10/100/1000 TX plus 2 Combo SFP Slots Switch. Then all the devices in this
network can communicate with each other. Connecting servers to the Core Switch allow
each end station to access the server’s data. This switch is an ideal solution for backbone
connectivity.

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5. Troubleshooting
The Switch can be easily monitored through panel indicators to assist in identifying
problems. This section describes common problems you may encounter and where you
can find possible solutions.
Diagnosing LED Indicator
If Link indicator does not light up after connection, you may check whether network
interface (e.g., a network adapter card on the attached device), network cable, or switch
port is defective or not. Verify that the switch and attached device are power on. Be sure the
cable is plugged into both the switch and corresponding device. Verified the proper cable
type is used and its length does not exceed specified limits.
Power
IF the power indicator does turn on when the power cord is plugged in, you 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
you still cannot resolve the problem, contact your local dealer for assistance.
Transmission Mode
Verify that each port is set to the same transmission mode used by the attached device (i.e.,
half or full duplex). RJ-45 port uses auto-negotiation to set the transmission mode. If the
attached device operates at half duplex, the default when auto-negotiation fails, then it does
not have to support auto-negotiation.
Cabling
RJ-45 ports: Use unshielded twisted-pair (UTP) or shield twisted-pair (STP) cable for
RJ-45 connections: 100GCategory 3,4 or 5 cable for 10Mbps connections or 100G
Category 5 cable for 100Mbps connections or 4-pair Category 5 copper cabling for
1000Mbps connection. Also be sure that the length of any twisted-pair connection does not
exceed 100 meters (328 feet).

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6. Technical Specification
The following table provides the technical specification of the 24-port 10/100/1000 TX plus
2 Combo SFP Slots Switch.
Standard
IEEE802.3 10BASE-T
IEEE802.3u 100BASE-TX
IEEE802.3z Gigabit fiber
IEEE802.3ab 1000Base-T
Protocol CSMA/CD
Technology Store-and-Forward switching architecture
Transfer Rate
14880 Packets per Second for 10Mbps
148800 Packets per second for 100Mbps
1488000 Packets per second for 1000Mbps
Connector RJ-45: 24 ports
COMBO SFP SLOTS: 2 x 3.3V SFP SLOTS
MAC Address 8K
Memory Buffer 2Mbits
Network Cable
10BASE-T: 2 pairs UTP/STP CAT.3, 4, 5 cable EIA/TIA
568 100Ohm(100M)
100BASE-TX: 2 pairs UTP/STP CAT. 5 cabl
e EIA/TIA 568
100Ohm(100M)
Gigabit Copper: 4 pairs UTP/STP CAT. 5 cable EIA/TIA
568 100Ohm(100M)
LED
System: Power
Per RJ-45 port: 1000Mbps, Link/Activity, Full duplex/
collision
Combo SFP Slots slot: Link, Activity
Power Supply Internal power supply, AC 100~240VAC, 50/60 Hz
Power 47Watts(maximum)

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Consumption
Operation
Temperature 0to 45(32to 113)
Operation
Humidity 10% to 90% (Non-condensing)
Dimension 440mm(W) x 224mm(D) x 44mm (H)
EMI & Safety FCC Class A, CE, UL, CE/EN60950
1329 Moffett Park Drive
Sunnyvale, CA 94089
USA

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Phone: [phone]
www.milan.com