All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis,
Inc.
Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names,
company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective
owners.
Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document
without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied
Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited
to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has
been advised of, known, or should have known, the possibility of such damages.
Electrical Safety and Emissions
Note
Note
Standards
This section contains the following:
“US Federal Communications Commission”
“Industry Canada”
“Emissions, Immunity and Electrical Safety Standards” on page 4
“Translated Safety Statements” on page 4
US Federal Communications Commission
Radiated Energy
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of 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 this 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 his own
expense.
Modifications or changes not expressly approved of by the manufacturer or the FCC, can void
your right to operate this equipment.
Industry Canada
Radiated Energy
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
3
Emissions, Immunity and Electrical Safety Standards
Warning
Warning
RFI EmissionsFCC Class A, EN55022 Class A, CISPR 22 Class A, VCCI Class A, C-TICK, CE
In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures. E84
Important: The indicates that a translation of the safety statement is available in a PDF
document titled Translated Safety Statements on the Allied Telesis website at www.alliedtelesis.com/support.
Front and Back Panels............................................................................................................................... 18
Power over Ethernet (PoE)........................................................... .... ... ... ................................................... 23
Power Supply............................................................................................................................................. 38
Unpacking the Switch................................................................................................................................. 48
Installing the Switch on a Desktop............................................................................................................. 50
Installing the Switch in an Equipment Rack............................................................................................... 51
Installing the Switch on a Wall ................................................................................................................... 53
Cabling the Switch ..................................................................................................................................... 59
Powering On the Switch............................................................................................................................. 60
Power Specifications.................................................................................................................................. 70
Safety and Electromagnetic Emissions Certifications................................................................................ 71
Connectors and Port Pinouts..................................................................................................................... 71
5
Contents
6
Figures
Figure 1: AT-GS950/10PS and AT-GS950/16PS Front Panels........................................................................................... 18
Figure 2: AT-GS950/28PS and AT-GS950/48PS Front Panels........................................................................................... 19
Figure 3: AT-GS950/10PS Back Panel................................................................................................................................ 20
Figure 4: AT-GS950/16PS and AT-GS950/28PS Back Panels........................................................................................... 20
Figure 5: AT-GS950/48PS Back Panel................................................................................................................................ 20
Figure 6: PWR LED on AT-GS950/10PS............................................................................................................................ 26
Figure 7: SYSTEM LED on AT-GS950/16PS...................................................................................................................... 27
Figure 8: SYS LED on AT-GS950/28PS.............................................................................................................................. 27
Figure 9: SYS LED on AT-GS950/48PS.............................................................................................................................. 27
Figure 10: AT-GS950/10PS Link/Activity and Speed LEDs................................................................................................. 28
Figure 13: AT-GS950/48PS Link/Activity/Speed Port LEDs................................................................................................ 30
Figure 14: AT-GS950/10PS SFP Status LEDs.................................................................................................................... 31
Figure 15: AT-GS950/16PS SFP Status LEDs.................................................................................................................... 31
Figure 16: AT-GS950/28PS SFP Status LEDs.................................................................................................................... 31
Figure 17: AT-GS950/48PS SFP Status LEDs.................................................................................................................... 32
Figure 18: AT-GS950/10PS PoE and PoE MAX LEDs........................................................................................................ 34
Figure 19: AT-GS950/16PS PoE and PoE MAX LEDs........................................................................................................ 34
gure 20: AT-GS950/28PS PoE and PoE MAX LEDs........................................................................................................ 34
Fi
Figure 21: AT-GS950/48PS PoE and PoE MAX LEDs........................................................................................................ 34
Figure 25: Attaching the Rubber Feet ................................................................................................................................. 50
Figure 26: Attaching the Rack-Mount Brackets to the Switch.............................................................................................. 51
Figure 27: Attaching the Rack-Mount Brackets to the Switch (Continued)............................................. ... ... ....................... 52
Figure 28: Mounting the Switch in an Equipment Rack. ...................................................................................................... 52
Figure 29: Attaching the Brackets to Install the Switch on a Wall........................................................................................ 53
Figure 30: Marking the Screw Hole Locations..................................................................................................................... 54
Figure 31: Securing the Switch to the Wall.......................................................................................................................... 55
Figure 32: Inserting the SFP................................................................................................................................................ 57
Figure 33: Positioning the SFP Handle in the Upright Position ........................................................................................... 57
Figure 34: Installing the Retaining Clip................................................................................................................................ 60
Figure 35: Raising the Retaining Clip.................................................................................................................................. 61
Figure 36: Plugging in the AC Power Cord.......................................................................................................................... 61
Figure 37: Lowering the Retaining Clip................................................................................................................................ 62
Figure 38: Plugging in the AC Power Cord.......................................................................................................................... 63
Figure 39: RJ-45 Connector and Port Pin Layout................................................................................................................ 71
Table 7. SFP Slot LED Functional Descriptions - AT-GS950/28PS ...................................................................................33
Table 8. PoE Status LED Functional Descriptions .............................................................................................................35
Table 9. Twisted Pair Cabling and Distances .....................................................................................................................47
Table 13. Max AC Input Power Specifications ....................................................................................................................70
Table 14. Max Ports Supported per PoE Class .................................................. ... ... ..........................................................71
Table 15. Safety and Electromagnetic Emissions Certifications .........................................................................................71
Table 16. MDI Pin Signals (10Base-T or 100Base-TX) ......................................................................................................72
Table 17. MDI-X Pin Signals (10Base-T or 100Base-TX) ..................................................................................................72
This guide contains the installation instructions for the AT-GS950/10PS,
AT-GS950/16PS, AT-GS950/28PS, and AT-GS950/48PS Gigabit Ethernet
PoE+ Switches. This preface contains the following sections:
“Symbol Conventions” on page 12
“Contacting Allied Telesis” on page 13
The AT-GS950/10PS, AT-GS950/16PS, AT-GS950/28PS, and AT-GS950/
48PS switches may be collectively referred to as GS950/PS Series
switches in this guide.
11
Symbol Conventions
Note
Caution
Warning
Warning
Note
This document uses the following conventions:
Notes provide additional information.
Cautions inform you that performing or omitting a specific action
may result in equipment damage or loss of data.
Warnings inform you that performing or omitting a specific action
may result in bodily injury.
Warnings inform you that an eye and skin hazard exists due to the
presence of a Class 1 laser device.
The indicates that a translation of the safety statement is
available in a PDF document titled “Translated Safety Statements”
on the Allied Telesis website at http://www.alliedtelesis.com/support.
12
Contacting Allied Telesis
If you need assistance with this product, you may contact Allied Telesis
technical support by going to the Support & Services section of the Allied
Telesis web site at www.alliedtelesis.com/support. You can find links for
the following services on this page:
24/7 Online Support - Enter our interactive support center to
search for answers to your questions in our knowledge database,
check support tickets, learn about RMAs, and contact Allied
Telesis technical experts.
USA and EMEA phone support - Select the phone number that
best fits your location and customer type.
Hardware warranty information - Learn about Allied Telesis
warranties and register your product online.
Replacement Services - Submit a Return Merchandise
Authorization (RMA) request via our interactive support center.
GS950/PS Series Switches Installation Guide
Documentation - View the most recent installation guides, user
guides, software release notes, white papers and data sheets for
your product.
Software Updates - Download the latest software releases for your
product.
For sales or corporate contact information, go to www.alliedtelesis.com/purchase and select your region.
13
14
Chapter 1
Overview
This chapter provides descriptions of the AT-GS950/10PS, AT-GS950/
16PS, AT-GS950/28PS, and AT-GS950/48PS Layer 2 Gigabit Ethernet
PoE+ Switches and contains the following sections:
“Features” on page 16
“Front and Back Panels” on page 18
“Management Software” on page 21
“Twisted Pair Ports” on page 22
“Power over Ethernet (PoE)” on page 23
“Combo Ports” on page 24
“LEDs” on page 26
“eco-Friendly Button” on page 36
“Power Supply” on page 38
“Fans” on page 39
15
Chapter 1: Overview
Note
Note
Features
Here are the hardware features of the GS950/PS Series switches.
Twisted Pair
Ports
Here are the basic features of the 10/100/1000 Mbps twisted-pair ports:
10, 16, 24, or 48 ports per switch
8, 16, or 24 Power over Ethernet (PoE) ports per switch
10Base-TX, 100Base-T and 1000Base-T compliant
IEEE 802.3u Auto-Negotiation compliant
Auto-MDI/MDIX
100 meters (328 feet) maximum operating distance
IEEE 802.3x Flow Control in 10/100Base-TX full-duplex operation
IEEE 802.3x Back Pressure in 10/100Base-TX half-duplex
operation
IEEE803.3z 1000Base-T Flow Control
Support for Jumbo frames up to 10KB
RJ-45 connectors
SFP SlotsThe AT-GS950/10PS, AT-GS950/16PS, and AT-GS950/48PS switches
support both 100Base-FX and 1000Base-SX/LX transceivers. The
AT-GS950/28PS switch supports 1000Base-SX/LX transceivers. The
switches support either two or four slots for SFPs:
Two SFP slots on the AT-GS950/10PS and AT-GS950/16PS
switches
Four SFP slots on the AT-GS950/28PS and AT-GS950/48PS
switches
On the AT-GS950/10PS, AT-GS950/16PS, and AT-GS950/48PS
switches, the SFP slots are paired with twisted pair ports on the
switch to form combo ports. For more information, see “Combo
Ports” on page 24.
You must purchase SFP transceivers separately. For a list of
supported transceivers, contact your Allied Telesis distributor or
reseller.
16
Note
See the product data sheets for the specific Allied Telesis SFP
modules supported by the GS950/PS Series switches.
LEDsHere is a brief description of the port LEDs:
Power LED/SYS; refer to “PWR/SYS LEDs” on page 26.
Speed and link/activity LEDs for the twisted pair ports; refer to “10/
100/1000 BaseT Link Activity LEDs” on page 28.
Link/activity LEDs for the SFP slots; refer to “SFP LEDs” on
page 31.
eco-Friendly button turns off the LEDs to conserve electricity; refer
to “PoE LEDs” on page 33.
GS950/PS Series Switches Installation Guide
Installation
Options
Power
Conservation
MAC Address
Table
The GS950/PS Series switches can be installed in the following ways:
Rack mounted in a 19-inch equipment rack
Mounted on a desk or tabletop
Wall mounted for the AT-GS950/10PS, AT-GS950/16PS, and
AT-GS950/28PS only
The GS950/PS Series switches have the following power conservation
features:
eco-Friendly button to turn off the port LEDs when the system is
not being monitored
High-efficiency power supply
Power scaling based on traffic loads on ports operating at 1000
Mbps (port power scaling not available at 10 or 100 Mbps)
Power shutdown on unused ports
Here are the basic features of the MAC address table:
Storage capacity up to 16KB MAC address entries
Automatic learning and aging
17
Chapter 1: Overview
AT-GS950/16
AT-GS950/16PS
10/100/1000Base-T
SFP Slots
Twisted Pair Ports
AT-GS950/10PS
eco-Friendly
Button
Port and
System LEDs
eco-Friendly
Button
SFP Slots
Port and
System LEDs
eco-Friendly
Button
10/100/1000Base-T
Twisted Pair Ports
Front and Back Panels
Figure 1 illustrates the front panels of the AT-GS950/10PS and
AT-GS950/16PS Gigabit Ethernet Switches.
18
Figure 1. AT-GS950/10PS and AT-GS950/16PS Front Panels
Figure 2 on page 19 illustrates the front panels of the AT-GS950/28PS
and AT-GS950/48PS Gigabit Ethernet Switches.
GS950/PS Series Switches Installation Guide
AT-GS950/48PS
SFP Slots
System LEDs
eco-Friendly
Button
10/100/1000Base-T
Twisted Pair Ports
AT-GS950/28PS
SFP Slots
eco-Friendly
Button
10/100/1000Base-T
Twisted Pair Ports
Port and
System LEDs
Figure 2. AT-GS950/28PS and AT-GS950/48PS Front Panels
19
Chapter 1: Overview
AC Input
AC Input
AC Input
See Figure 3 for an example of the AT-GS950/10PS back panel.
Figure 3. AT-GS950/10PS Back Panel
See Figure 4 for an example of the AT-GS950/16PS and AT-GS950/28PS
back panels.
Figure 4. AT-GS950/16PS and AT-GS950/28PS Back Panels
See Figure 5 for an example of the AT-GS950/48PS back panel.
Figure 5. AT-GS950/48PS Back Panel
20
Management Software
The switches are shipped with the management software pre-installed.
The software provides a web-browser interface for in-band, over-thenetwork management. Although the three models have the same features,
each has a different management software program. The programs are:
AT-S110: refer to the Web Interface User’s Guide for the
AT-S111: refer to the Web Interface User’s Guide for the
AT-S112: refer to the Web Interface User’s Guide for the
AT-S126: refer to the Web Interface User’s Guide for the
In the unlikely event that the management software becomes corrupted or
damaged on the switch, you can download the software from the Allied
Telesis corporate web site and reinstall it on the switch. For instructions on
how to install new management software, see the product documentation
listed above.
GS950/PS Series Switches Installation Guide
AT-GS950/10PS Switch
AT-GS950/48PS Switch
AT-GS950/16PS Switch
AT-GS950/28PS Switch
21
Chapter 1: Overview
Note
Twisted Pair Ports
The AT-GS950/10PS, AT-GS950/16PS, AT-GS950/28PS, and
AT-GS950/48PS Layer 2 Gigabit Ethernet Switches feature 10, 16, 24,
and 48 twisted pair ports, respectively. All ports are 10Base-T, 100BaseTX, and 1000Base-TX compliant. You can set the port speeds and duplex
modes either automatically with IEEE 802.3u Auto-Negotiation or
manually with the management software.
The twisted pair ports feature 8-pin RJ-45 connectors. For the port
pinouts, see “Connectors and Port Pinouts” on page 71.
The ports have a maximum operating distance of 100 meters (328 feet).
For 10 Mbps operation, the ports require Category 3 or better 100 ohm
shielded or unshielded twisted pair cabling. For 100 or 1000 Mbps
operation, the ports require Category 5 or Enhanced Category 5 (5E) 100
ohm shielded or unshielded twisted pair cabling.
The ports feature Auto-MDI, which automatically configures the ports as
MDI or MDI-X. This feature allows you to use straight-through twisted pair
cables regardless of the wiring configurations of the ports on the end
nodes.
A switch port connected to an end node that is not using AutoNegotiation should not use Auto-Negotiation to set the speed and
duplex mode, because a duplex mode mismatch may occur. In this
case, disable Auto-Negotiation and set the port’s speed and duplex
mode manually.
22
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