
Datasheet | Switches
AT-GS900/8POE
Unmanaged 8 port Power over Ethernet Gigabit Switch with 1 SFP
AT-GS900/8POE
8 port 10/100/1000T unmanaged 
Power over Ethernet Gigabit switch with 
1 SFP combo port
High Performance
Providing powerful 10/100/1000 switching 
solutions for desktop, conference room and 
security applications, the Allied Telesis 
AT-GS900/8POE unmanaged switch features 
automatic detection and classification of an 
attached PoE device.With all eight copper 
ports PoE capable (four at full 15.4w), this is 
the perfect solution for a wireless security or 
conference room application.The copper por ts 
on the switch feature full auto-negotiation. 
These ports enable the switches to detect the 
speed and duplex modes of attached devices, 
enabling them to automatically configure for the 
best possib 
also available for connecting this device to 
other switches in your network, such as the 
9400 series of switches over a fiber optic cable.
le performance. One SFP port is
Simplified Installation
The AT-GS900/8POE provides wall-mount, 
rack-mount and desktop options giving users 
their choice of deployment locations. Fully autoconfiguring AT-GS900/8POE switch requires 
minimal set-up by the user. Auto-sensing ports 
enable seamless and simple connectivity 
between existing 10Mbps Ethernet and 
100Mbps Fast Ethernet, 1000T UTP devices— 
and all units can be installed in minutes. Ever y 
AT-GS900/8POE switch is equipped with auto 
MDI/MDI-X across all ports for simple 
connection to other hubs and switches as w 
as automatic detection and classification of the 
PoE ports. Finally, easy to read top panel 
LEDs show ongoing switch status and simplify 
troubleshooting.
ell
Quality and Reliability
Allied Telesis is a worldwide leader in unmanaged 
Ethernet switches. Shipping more than 250,000 
each year, Allied Telesis offers proven reliability and
y recognized quality.
industr
Key Features
• 8 10/100/1000T ports
• 1 SFP uplink port (combo)
• Auto detect and classification of PoE
• PoE capable on all 8 10/100/1000T ports 
(4 @ 15.4w max)
• IEEE 802.3af standard
• Non-blocking architecture
• Auto-negotiation ports
• Auto MDI/MDI-X on all copper ports
• Plug and Play installation
• Rack-mount, wall-mount and desktop hardware
included
• Supports jumbo frames up to 9.6Kbytes
Allied Telesis www.alliedtelesis.com
 

AT-GS900/8POE | 8 port Power over Ethernet Gigabit Switch with 1 SFP
Performance
Ethernet 10Mbps (half-duplex)
20Mbps (Full-duplex)
Fast Ethernet 100Mbps (Half-duplex)
200Mbps (Full-duplex)
Gigabit Ethernet 1000Mbps (Half-duplex)
2000Mbps (Full-duplex) 
MAC addresses 8K 
Packet buffer 768K 
Half/full-duplex 
Auto-negotiation 
Auto MDI/MDI-X on all copper ports
Interface Connections
10/100/1000T RJ-45 
1 x SFP Fiber only
Power Characteristics
Frequency 50 to 60Hz 
Power requirements 90-240V AC 
Power consumption 90W max 
PoE power  48vDC, 65W 
Switch and fan power 12vDC, 20W
Environmental Specifications
Operating temp 0°C to 40°C 
(32°F to 104°F) 
Non-operating temp -25°C to 70°C
(-13°F to 158°F) 
Operating humidity 10% to 90% non-condensing 
Non-operating humidity 5% to 95% non-condensing 
Vibration IEC 68-2-36 
Shock  IEC 68-2-29 
Drop IEC 68-2-32
Physical Characteristics
Dimensions 33cm x 22cm x 4.3cm 
(W x D x H) (13” x 8.7” x 1.7”) 
Weight 1.9kgs (4.20lbs)
Standards and Compliance
IEEE 802.3i  10T Ethernet 
IEEE 802.3u  100TX Fast Ethernet 
IEEE 802.3x  Flow control 
IEEE 802.3af  Power over Ethernet (mode A) 
IEEE 802.3z/ab  1000T Gigabit Ethernet 
IEEE 802.3z  1000SX/LX
Certification
UL1950 TUV UL 
C-Tick CE Mark 
FCC Part 15 
CISPR 22 
EN55022
Ordering Information
AT-GS900/8POE-xx
8 port 10/100/1000T unmanaged PoE switch with 1 SFP
Where xx =  10 for US power cord
30 for UK power cord 
40 for Australian power cord 
50 for European power cord
Accessories
Small Form Pluggables (SFPs)
AT-SPTX
10/100/1000T 100m copper 
Order number: 990-000262-00
AT-SPSX
GbE multi-mode 850nm fiber 
Order number: 990-00028-00
AT-SPLX10
GbE single-mode 1310nm fiber up to 10km 
Order number: 990-00029-00
AT-SPLX40
GbE single-mode 1310nm fiber up to 40km 
Order number: 990-00161-00
AT-SPLX40/1550
GbE single-mode 1550nm fiber up to 40km 
Order number: 990-00160-00
USA Headquarters | 19800 North Creek Parkway | Suite 100 | Bothell | WA 98011 | USA | T: +1 800 424 4284 | F: +1 425 481 3895 
European Headquarters | Via Motta 24 | 6830 Chiasso | Switzerland | T: +41 91 69769.00 | F: +41 91 69769.11 
Asia-Pacific Headquar
ters | 11 Tai Seng Link | Singapore | 534182 | T: +65 6383 3832 | F: +65 6383 3830
www.alliedtelesis.com
© 2008 Allied Telesis Inc.All r ights reserved. Information in this document is subject to change without notice. All company names, logos, and product designs that are trademarks or registered trademarks are the proper ty of their respective owners. 617-000218  Rev. E