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Copyright ©PLANET Technology Corp. 2007.
Content subjects to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp. All other
trademarks belong to their respective owners.
PLANET Technology does not warrant that the hardware will work properly in
all environments and applications, and makes no warranty and representation,
either implied or expressed, with respect to the quality, performance,
merchantability, or fitness for a particular purpose.
PLANET has made every effort to ensure that this User’s Manual is accurate;
PLANET disclaims liability for any inaccuracies or omissions that may have
Information in this User’s Manual is subject to change without notice and does
not represent a commitment on the part of PLANET. PLANET assumes no
responsibility for any inaccuracies that may be contained in this User’s Manual.
PLANET makes no commitment to update or keep current the information
in this User’s Manual, and reserves the right to make improvements to this
User’s Manual and/or to the products described in this User’s Manual, at any
time without notice.
If you find information in this manual that is incorrect, misleading, or
incomplete, we would appreciate your comments and suggestions.
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 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 its own expense.
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
WEEE Warning
To avoid the potential effects on the environment and
human health as a result of the presence of hazardous
substances in electrical and electronic equipment,
end users of electrical and electronic equipment
should understand the meaning of the crossed-out
wheeled bin symbol. Do not dispose of WEEE as
unsorted municipal waste and have to collect such
WEEE separately.
PLANET Fast Ethernet Switch User’s Manual
FOR MODELS: FSD-1605 / FSD-2405
Rev: 1.0(July.2007)
Part No.: EM-FSD1624V1.0 (2081-A31013-000)
1.1 Package Contents
Check the contents of your package for following parts:
。 Fast Ethernet Switch x 1
。 User’s manual x 1
。 Power cord x 1
。 Rack ear x 2
。 Rubber feet x 4
If any of these are missing or damaged, please contact your dealer
immediately, if possible, retain the carton including the original packing
material, and use them against to repack the product in case there is a need
to return it to us for repair.
1.2 How to Use This Manual
This Fast Ethernet Switch User Manual is structured as follows:
Chapter 2 Installation
The chapter explains the feature, functionality and the physical installation of
the Fast Ethernet Switch.
Chapter 3 Switch operation
The chapter explains the Fast Ethernet Switch transmit operation.
Chapter 4 Troubleshooting
The chapter explains the troubleshooting of the Fast Ethernet Switch.
Appendix A
This chapter contains cable information of the Fast Ethernet Switch.
In the following section, the term “Fast Ethernet Switch” means the FSD1605 and FSD-2405.
1.3 Product Features
。 Complies with IEEE 802.3, 10Base-T, and IEEE 802.3u 100Base-TX
。 16/24-Port 10/100Mbps TX Auto-Negotiation Ethernet Switch
。 Features Store-and-Forward mode with wire-speed filtering and forwarding rates
。 IEEE 802.3x flow control for full duplex operation and Backpressure for
half duplex operation
。 Support 8K absolute MAC addresses
。 Supports to handle up to 1552 bytes packet
。 Automatic address learning and address aging
。 Supports Auto MDI/MDI-X function
。 Full/Half-Duplex capability on each TX port
。 LED indicators for simple diagnostics and management
Desktop-Size and easy installation anywhere
Rack-mountable design
。 FCC, CE class A compliant
4 Product
�������� Specifications
Hardware Specification
10/100Base-TX Ports
16 RJ-45 MDI/MDI-X
Dimensions (W x H x D)
280 x 170 x 44 mm
Weight (KG)
1.60 KG
Power Consumption
13.6 ���������������
/ 46.4���
Power Requirement
100~240V� AC,
50-60 Hz
24 RJ-45 MDI/MDI-X
Switch Specification
Switch Architecture
Address Table
8K entries, auto learning/ageing
Shared Data Buffer
Switch Fabric
3.2 Gbps
4.8 Gbps
Switch Throughput
2.38 Mpps
3.57 Mpps
Flow Control
IEEE 802.3x full duplex operating and flow control
Packet Control
Runt & CRC filtering
Standard Conformance
Network Standards
IEEE 802.3 (Ethernet)
IEEE 802.3u (Fast Ethernet)
(Flow control)
Operation Temperature
Storage Temperature
Operation Humidity
10% to 90% (Non-condensing)
Storage Humidity
5% to 90% (Non-condensing)
Regulation Compliance
FCC Part 15 Class A, CE
This section describes the functionalities of the Fast Ethernet Switch’s
components and guides how to install it on the desktop. Basic knowledge
of networking is assumed. Please read this chapter completely before
2.1 Product Description
The PLANET Fast Ethernet Switch is 10/100Mbps Fast Ethernet Switch with
16/24 ports respectively, cost-effective; the Fast Ethernet Switch can handle
extremely large amounts of data in a secure topology linking to a backbone or
high capacity servers. The Fast Ethernet Switch has 8K MAC Address table
and provides 1.25Mbit buffer memory. The Fast Ethernet Switch offers wirespeed packets transfer performance without risk of packet loss. The high
data throughput of the Fast Ethernet Switch makes it ideal for most Fast
environments, especially while network upgrades to a Fast environment.
All RJ-45 copper interfaces support 10/100Mbps Auto-Negotiation for optimal
speed detection through RJ-45 Category 5 or 3 cables. Support is standard
for Auto-MDI/MDI-X that can detect the type of connection to any Ethernet
device without requiring special straight or crossover cables.
The Flow Control function allows your Fast Ethernet Switch supported routers
and servers to directly connect to this Switch for fast, reliable data transfer.
2.1.1 Product Overview
The PLANET Fast Ethernet Switch with 16/24 RJ-45 10/100Mbps ports
for high-speed network connectivity. The Fast Ethernet Switch can also
automatically identify and determine the correct transmission speed and half/
full duplex mode of the attached devices with its 16/24 ports.
The Fast Ethernet Switch also supports Store-and-Forward forwarding
scheme to ensure low latency and high data integrity, eliminates unnecessary
traffic and relieves congestion on critical network paths. With an intelligent
address recognition algorithm, the Fast Ethernet Switch could recognize up
to 8K different MAC address and enables filtering and forwarding at full wire
2.1.2 Switch Front Panel
Figure 2-1 & 2-2 shows a front panel of Fast Ethernet Switch.
Figure 2-1 FSD-1605 front panel
Figure 2-2 FSD-2405 front panel
2.1.3 LED Indicators
Lights to indicate that the Switch is powered on.
Lights to indicate the link through that port is
successfully established.
Blinks to indicate that the S��������������������������
witch is actively sending
or receiving data over that port.
Lights to indicate that the port is operating at
to indicate that the port is operating at 10Mbps
2.1.4 Switch Rear Panel
Figure 2-3 shows a rear panel of Fast Ethernet Switch .
Figure 2-3 FSD-1605/2405 rear panel
Power Notice:
1. The device is a power-required device, it means, it will not work till it is
powered. If your networks should active all the time, please consider
using UPS (Uninterrupted Power Supply) for your device. It will prevent
you from network data loss or network downtime.
2. In some area, installing a surge suppression device may also help to
protect your Switch from being damaged by unregulated surge or current
to the Switch or the power adapter.
2.2 Installing the Switch
This part describes how to install your Fast Ethernet Switch and make
connections to it. Please read the following topics and perform the procedures
in the order being presented.
Note: This Fast Ethernet Switch does not need software configuration.
2.2.1 Desktop Installation
To install the Fast Ethernet Switch on desktop, simply follow the next steps:
Step1: Attach the rubber feet to the recessed areas on the bottom of the Fast
Ethernet Switch, as shown in Figure 2-4.
Figure 2-4 Attaching the rubber feet to the Fast Ethernet Switch
Step2: Place the Fast Ethernet Switch on desktop near an AC power
Step3: Keep enough ventilation space between the Fast Ethernet Switch and
the surrounding objects.
Note: When choosing a location, please keep in mind the environmental
restrictions discussed in Chapter 1, Section 1.4 Product Specification.
Step4: Connect your Fast Ethernet Switch to network devices.
A. Connect one end of a standard network cable to the 10/100 RJ-45
ports on the front of the Fast Ethernet Switch.
B. Connect the other end of the cable to the network devices such as
printer servers, workstations or routers…etc.
Note: Connection to the Fast Ethernet Switch requires UTP Category 5
network cabling with RJ-45 tips. For more information, please see the
Cabling Specification in Appendix A.
Step5: Supply power to the Fast Ethernet Switch.
A. Connect one end of the power cable to the Fast Ethernet Switch.
B. Connect the power plug of the power cable to a standard wall outlet.
When the Fast Ethernet Switch receives power, the Power LED should
remain solid Green.
2.2.2 Rack Mounting
To install the Fast Ethernet Switch in a 19-inch standard rack, follow the
instructions described below.
Step1: Place your Fast Ethernet Switch on a hard flat surface, with the front
panel positioned towards your front side.
Step2: Attach a rack-mount bracket to each side of the Fast Ethernet Switch
with supplied screws attached to the package. Figure 2-5 shows how
to attach brackets to one side of the Fast Ethernet Switch.
Figure 2-5 Attaching the brackets to the Fast Ethernet Switch.
You must use the screws supplied with the mounting brackets. Damage caused
to the parts by using incorrect screws would invalidate your warranty.
Step3: Secure the brackets tightly.
Step4: Follow the same steps to attach the second bracket to the opposite
Step5: After the brackets are attached to the Fast Ethernet Switch, use
suitable screws to securely attach the brackets to the rack, as shown
in Figure 2-6.
Figure 2-6 Mounting the Switch in a Rack
Step6: Proceeds with the steps 4 and steps 5 of session 2.2.1 Desktop
Installation to connect the network cabling and supply power to your
Fast Ethernet Switch.
3.1 Address Table
The Switch is implemented with an address table. This address table
composed of many entries. Each entry is used to store the address
information of some node in network, including MAC address, port no, etc.
This information comes from the learning process of Ethernet Switch.
3.2 Learning
When one packet comes in from any port, the Switch will record the source
address, port no. And the other related information in address table. This
information will be used to decide either forwarding or filtering for future
3.3 Forwarding & Filtering
When one packet comes from some port of the Ethernet Switching, it will
also check the destination address besides the source address learning. The
Ethernet Switching will lookup the address-table for the destination address.
If not found, this packet will be forwarded to all the other ports except the
port, which this packet comes in. And these ports will transmit this packet to
the network it connected. If found, and the destination address is located at
different port from this packet comes in, the Ethernet Switching will forward
this packet to the port where this destination address is located according to
the information from address table. But, if the destination address is located
at the same port with this packet comes in, then this packet will be filtered.
Thereby increase the network throughput and availability.
3.4 Store-and-Forward
Store-and-Forward is one type of packet-forwarding techniques. A Storeand-Forward Ethernet Switching stores the incoming frame in an internal
buffer, do the complete error checking before transmission. Therefore,
no error packets occurrence, it is the best choice when a network needs
efficiency and stability.
The Ethernet Switch scans the destination address from the packet-header,
searches the routing table provided for the incoming port and forwards the
packet, only if required. The fast forwarding makes the switch attractive for
connecting servers directly to the network, thereby increasing throughput and
availability. However, the switch is most commonly used to segment existing
hubs, which nearly always improves overall performance. An Ethernet
Switching can be easily configured in any Ethernet network environment to
significantly boost bandwidth using conventional cabling and adapters.
Due to the learning function of the Ethernet switching, the source address
and corresponding port number of each incoming and outgoing packet
are stored in a routing table. This information is subsequently used to filter
packets whose destination address is on the same segment as the source
address. This confines the network traffic to its respective domain, reducing
the overall load on the network.
The Switch performs "Store and Forward" therefore, no error packets occur.
More reliably, it reduces the re-transmission rate. No packet loss will occur.
3.5 Auto-Negotiation
The STP ports on the Switch have built-in “Auto-negotiation”. This technology
automatically sets the best possible bandwidth when a connection is
established with another network device (usually at Power On or Reset).
This is done by detect the modes and speeds at the second of both device
is connected and capable of, both 10Base-T and 100Base-TX devices can
connect with the port in either Half- or Full-Duplex mode.
This chapter contains information to help you solve issues. If Fast Ethernet
Switch is not functioning properly, make sure the Ethernet Switch was set up
according to instructions in this manual.
Some stations cannot talk to other stations located on the other port
The address table may contain older information than of the address
table of that node. Please power down to refresh the address
Performance is bad
Check the full duplex status of the Fast Ethernet Switch. If the Fast
Ethernet Switch is set to full duplex and the partner is set to half duplex,
then the performance will be poor.
Why the Switch doesn’t connect to the network
Check the LNK/ACT LED on the Switch
Try another port on the Switch
Make sure the cable is installed properly
Make sure the cable is the right type
Turn off the power. After a while, turn on power again
Appendix A Switch’s RJ-45 Pin Assignments
A.1 10/100Mbps, 10/100Base-TX
When connecting your 10/100Mbps Ethernet Switch to another switch, a
bridge or a hub, a straight or crossover cable is necessary. Each port of
the Switch supports auto-MDI/MDI-X detection. That means you can directly
connect the Switch to any Ethernet devices without making a crossover
cable. The following table and diagram show the standard RJ-45 receptacle/
connector and their pin assignments:
RJ-45 Connector pin assignment
Media Dependant Interface
Tx + (transmit)
Media Dependant Interface - Cross
RX + (receive)
Tx - (transmit)
RX - (receive)
4, 5
Rx + (receive)
TX + (transmit)
Not used
RX – (receive)
7, 8
TX – (transmit)
Not used
The standard cable, RJ-45 pin assignment
A.2 RJ-45 Plug, Jack pin out
The standard RJ-45 receptacle/.connector
There are 8 wires on a standard UTP/STP cable and each wire is colorcoded. The following shows the pin allocation and color of straight cable and
crossover cable connection:
Figure A-1: Straight-Through and Crossover Cable
Please make sure your connected cables are with same pin assignment and
color as above picture before deploying the cables into your network.
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Part No.: 2081-A31013-000