
5-Port 10/100/1000T Gigabit Ethernet Switch
RJ-45 Interface
• 5-Port 10/100/1000Mbps Gigabit Ethernet 
• Complies with IEEE 802.3, 10Base-T, IEEE 802.3u 100Base-
TX, IEEE 802.3ab 1000Base-T
• Supports auto MDI/MDI-X function
Switching
Optimal Solution for Energy Saving and Gigabit High Performance      
PLANET Green Networking Switch, GSD-503, is an ideal solution in line with the 
energy-saving trend worldwide. The GSD-503 is a 5-port Gigabit Ethernet Switch 
bringing both benefits of energy saving and Gigabit wire speed performance. It is 
specially designed for home networking, SOHOs and enterprises. 
Energy Saving
The GSD-503 incorporates two advanced Green Networking technologies and is able to 
provide power saving up to 40% less energy but maintains high performance efciently.
(1) Hibernation Link Down power saving
The Hibernation Link Down power saving goes beyond IEEE specifications to 
automatically lower power for a given port when it is not linked. With the Hibernation 
Link Down power saving technology, the GSD-503 will automatically adjust power usage 
of the ports that are shut down or not connected to network device. 
(2) Intelligent scales power based on cable length
Intelligent scales power, the other technology adopted, is an intelligent algorithm that 
actively determines the appropriate power level based on cable length. When the GSD-
503 is connected with Ethernet cable shorter than 20m, a device can obtain maximum 
power saving because the GSD-503 would automatically detect the Ethernet cable 
length and diminish power usage. The connected device can substantially reduce the 
overall power consumption, which makes a signicant contribution to energy saving. 
• Hardware based 10/100Mbps, half / full duplex and 1000Mbps 
full duplex mode, ow control and auto-negotiation
• Features Store-and-Forward mode with wire-speed ltering and 
forwarding rates
• IEEE 802.3x ow control for full duplex operation and back 
pressure for half duplex operation
• Integrated address look-up engine, supporting 2K absolute 
MAC addresses
• 9K Jumbo packet size
• Power saving ability for Green networking 
• Automatic address learning and address aging
• Supports CSMA/CD protocol
Hardware
• Made of metal, desktop size and wall-mount design
• LED indicators for system power, per port 1000 & Link / Act
• 5V DC, 1A external power adapter
• One Power on/off button for energy saving
• FCC, CE Class B compliant
GSD-503
Power Saving 40%
GSD-503 
GSD-504
Other 5G 
Switch
*Full Port link/Cable length < 20m
40%
Save 
22,776 Watts 
22,776 Watts 
Data Sheet
1
yearly
1

Intelligent Power Savings
Intelligent Power Savings
GSD-503
PC
GSD-503
Power 
Consumption
PC
PC
PC
Other Switch
Power 
Consumption
PC
20m 40m 60m 80m 100m0m
PC
Leading Home, SOHO and Workgroup Users to High-speed Networking Generation
The GSD-503 is designed with modern metal compact housing and easy for deployment of high speed Gigabit networking in home or SOHO applications. 
Providing 10Gbps internal switching fabric, the GSD-503 can handle an extremely large amount of data in a secure topology linking to a backbone or high 
capacity servers. The GSD-503 provides 2K MAC address table, and offers wire-speed packet transfer performance without risk of packet loss. The high data 
throughput of the device makes it ideal for most Gigabit environments, especially for the network to be upgraded to a Gigabit environment.
Plug & Play
All RJ-45 copper interfaces of the GSD-503 support 10/100/1000Mbps auto-negotiation for optimal speed detection through RJ-45 Category 5, 5e or 6 
cables. They support standard auto-MDI/MDI-X feature which can detect the type of connection to any Ethernet device without requiring special straight or 
crossover cables. 
10/100/1000T x 5
5V DC 
Power
ON/OFF
Product Application
Backbone Switch
The GSD-503 can directly connect to department Switches or backbone servers. With up to 10Gbps of non-blocking switch fabric, the GSD-503 can be used 
to build a Gigabit high-bandwidth switched network quickly and easily. 
Home/SOHO High-speed Network Center
The GSD-503 Gigabit Ethernet Switch provides the best solution of high-speed Internet environment demanded by SOHO / Home and Power users. The 
GSD-503 accelerates the speed of data transmission between devices without worrying about the delay of high quality multimedia display. In aspect of home 
use, the GSD-503 integrates the speeds of 10, 100 and 1000Mbps which can fulll your demands of transmitting high quality multimedia, games and other 
high-speed Internet applications. 
Master Room
Study Room
NAS
GSD-503
Digital
Media Player
A/V
Bedroom
Living Room
A/V
Audio Line / Video Line
1000Base-T UTP
2

Product Specications
GSD-503
Product
Hardware Specications
Hardware Version  7
10/100 /1000 Base -T Ports  5 auto MDI/MDIX por ts
LED Display One for Power, Two for 1000 & Link / Act per por t
Enclosure  Metal
Dimensions (W x D x H) 155 x 86 x 26 mm
Weight 317g
Power Requirements 
(External Power Adapter)
Power Consumption 
(100M Full Operation)
Switch Specications
Switch Processing Scheme  Store-and-Forward
Address Table  2K 
Flow Control 
Switch Fabric 10Gbps
Throughput (packet per second)  7.44Mpps
Jumbo Packet Size 9K
Standards Conformance
Standards Compliance 
Regulation Compliance  FCC Part 15 Class B, CE
Environments
Temperature 
Humidit y 
GSD-503
5V DC, 1A
3.3 watts / 11 BTU
Back pressure half duplex 
IEEE 802.3x pause frame full duplex 
IEEE 802.3 (Ethernet) 
IEEE 802.3u (Fast Ethernet) 
IEEE 802.3ab (Gigabit Ethernet) 
IEEE 802.3x (Full-duplex Flow Control)
IEEE 802.3az Energy Efcient Ethernet (EEE)
Operating: 0~50 degrees C 
Storage: -10~70 degrees C
Operating: 5% to 95%, 
Storage: 5% to 95% (non-condensing)
Ordering Information
GSD-503 5-Port 10/100/1000T Gigabit Ethernet Switch (Metal case)
Related Products
GSD-504 5-Port 10/100/1000T Gigabit Ethernet Switch (Plastic c ase)
GSD-803 8-Port 10/100/100 0T Gigabit Ethernet Switch (Metal case)
GSD-804
PLANET Technology Corporation
11F., No.96, Minquan Rd., Xindian Dist., New Taipei City 
231, Taiwan (R.O.C.)
Tel: 886-2-2219-9518   Fax: 886-2-2219-9528 
Email: sales@planet.com.tw   www.planet.com.tw
8-Port 10/100/100 0T Gigabit Ethernet Switch (Plastic c ase)
PLANET reserves the right to change specications without prior notice.  All brand names and trademarks are property of 
their respective owners. Copyright © 2014 PLANET Technology Corp. All rights reserved.
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