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AT-FS909M
AT-FS917M
AT-FS926M
Fast Ethernet Switches
Installation Guide
613-001985 Rev A
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Copyright 2014 Allied Telesis, Inc.
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.
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Electrical Safety and Emissions Standards
This product meets the following standards.
U.S. Federal Communications Commission
Radiated Energy
Note: 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.
Note: Modifications or changes not expressly approved of by the manufacturer or the FCC, can void your right to operate
this equipment.
Industry Canada
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
RFI Emissions FCC Class A, EN55022 Class A, EN61000-3-2, EN61000-3-3, RCM, CE
Warning: In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
Immunity EN55024
Electrical Safety EN60950-1 (ULEU), UL 60950-1 (
CULUS
)
Laser Safety EN60825
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Translated Safety Statements
Important: The indicates that a translation of the safety statement is available in a PDF
document titled Translated Safety Statements posted on the Allied Telesis website at
www.alliedtelesis.com/support.
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Contents
Preface ........................................................................................................................................................... 11
Symbol Conventions .................................................................................................................................. 12
Contacting Allied Telesis............................................................................................................................ 13
Chapter 1: Overview ..................................................................................................................................... 15
Features..................................................................................................................................................... 16
Twisted-Pair Ports ............................................................................................................................... 16
SFP Slots............................................................................................................................................. 16
LEDs.................................................................................................................................................... 17
Installation Options .............................................................................................................................. 17
MAC Address Table ............................................................................................................................ 17
Front and Back Panels............................................................................................................................... 18
Management Software ............................................................................................................................... 20
Twisted-Pair Ports...................................................................................................................................... 21
Combo Ports .............................................................................................................................................. 22
LEDs .......................................................................................................................................................... 23
STATUS LEDs..................................................................................................................................... 23
MODE LEDs ........................................................................................................................................ 24
Port LEDs ............................................................................................................................................ 25
SFP Slot LEDs..................................................................................................................................... 26
Reset Button .............................................................................................................................................. 27
Mode Button............................................................................................................................................... 28
Power Supply ............................................................................................................................................. 29
Chapter 2: Installation ................................................................................................................................... 31
Reviewing Safety Precautions ................................................................................................................... 32
Selecting a Site for the Switch ................................................................................................................... 35
Cable Specifications................................................................................................................................... 36
Unpacking the Switch................................................................................................................................. 37
Installing the Power Cord Retaining Clip.................................................................................................... 39
Installing the Switch on a Desktop or Table ............................................................................................... 41
Installing the Switch in an Equipment Rack ............................................................................................... 42
Installing SFP Transceivers ....................................................................................................................... 44
Cabling the Switch ..................................................................................................................................... 47
Powering On the Switch............................................................................................................................. 48
Chapter 3: Troubleshooting .......................................................................................................................... 51
Appendix A: Technical Specifications .......................................................................................................... 53
Physical Specifications............................................................................................................................... 53
Dimensions.......................................................................................................................................... 53
Weight ................................................................................................................................................. 53
Environmental Specifications ..................................................................................................................... 53
Power Specifications.................................................................................................................................. 54
Safety and Electromagnetic Emissions Certifications ................................................................................ 54
Connectors and Port Pinouts ..................................................................................................................... 55
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Contents
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Figures
Figure 1: AT-FS909M, AT-FS917M, and AT-FS926M Front Panels ................................................................................... 18
Figure 2: AT-FS909M, AT-FS917M, and AT-FS926M Back Panels ................................................................................... 19
Figure 3: STATUS LEDs...................................................................................................................................................... 23
Figure 4: MODE LEDs......................................................................................................................................................... 24
Figure 5: Port LEDs ............................................................................................................................................................. 25
Figure 6: SFP Slot LEDs ..................................................................................................................................................... 26
Figure 7: Shipping Package Contents ................................................................................................................................. 38
Figure 8: Power Cord Retaining Clip ................................................................................................................................... 39
Figure 9: Power Cord Retaining Plates ............................................................................................................................... 39
Figure 10: Installing Retaining Plates on the Power Connector .......................................................................................... 40
Figure 11: Inserting the Retaining Clip into the Retaining Bracket ...................................................................................... 40
Figure 12: Attaching the Rack-Mount Brackets to the Switch.............................................................................................. 42
Figure 13: Mounting the Switch in an Equipment Rack ....................................................................................................... 42
Figure 14: Removing the Dust Plug from an SFP Slot ........................................................................................................ 44
Figure 15: Inserting the SFP................................................................................................................................................ 45
Figure 16: Positioning the SFP Handle in the Upright Position ........................................................................................... 45
Figure 17: Plugging in the AC Power Cord.......................................................................................................................... 48
Figure 18: RJ-45 Connector and Port Pin Layout................................................................................................................ 55
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List of Figures
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Tables
Table 1. Combo Ports .........................................................................................................................................................22
Table 2. POWER LED Functional Description ....................................................................................................................23
Table 3. FAULT LED Functional Description ......................................................................................................................24
Table 4. MODE LED Functional Descriptions .....................................................................................................................25
Table 5. Port LED Functional Descriptions .........................................................................................................................25
Table 6. SFP Slot LED Functional Descriptions .................................................................................................................26
Table 7. Twisted-Pair Cabling and Distances .....................................................................................................................36
Table 8. Chassis Dimensions .............................................................................................................................................53
Table 9. Chassis Weight .....................................................................................................................................................53
Table 10. Environmental Specifications ..............................................................................................................................53
Table 11. Power Specifications ..........................................................................................................................................54
Table 12. Safety and Electromagnetic Emissions Certifications .........................................................................................54
Table 13. MDI Pin Signals (10Base-T or 100Base-TX) ......................................................................................................55
Table 14. MDI-X Pin Signals (10Base-T or 100Base-TX) ..................................................................................................55
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List of Tables
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Preface
This guide contains the installation instructions for the AT-FS909M, ATFS917M, and AT-FS926M Fast Ethernet Switches. This preface contains
the following sections:
“Symbol Conventions” on page 12
“Contacting Allied Telesis” on page 13
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Symbol Conventions
Note
Caution
Warning
Warning
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.
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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 product questions in our knowledge
database, check support tickets, learn about Return Merchandise
Authorizations (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 an RMA request via our
interactive support center.
AT-FS909M, AT-FS917M, and AT-FS926M 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.
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Chapter 1
Overview
This chapter provides descriptions of the AT-FS909M, AT-FS917M, and
AT-FS926M Layer 2 Fast Ethernet Switches and contains the following
sections:
“Features” on page 16
“Front and Back Panels” on page 18
“Management Software” on page 20
“Twisted-Pair Ports” on page 21
“Combo Ports” on page 22
“LEDs” on page 23
“Reset Button” on page 27
“Mode Button” on page 28
“Power Supply” on page 29
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Chapter 1: Overview
Note
Note
Note
Features
Here are the hardware features of the AT-FS900M Series Fast Ethernet
Switches.
Twisted-Pair
Ports
Here are the basic features of the 10/100 Mbps twisted-pair ports:
8, 16, or 24 ports per switch
10Base-TX and 100Base-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
RJ-45 connectors
SFP Slots All three switches support both 100Base-FX and 1000Base-SX/LX
transceivers. The switches support slots for SFPs as follows:
One SFP slot on the AT-FS909M and AT-FS917M switches
Two SFP slots on the AT-FS926M switch
The AT-FS900M Series SFP slots are paired with twisted pair ports
on the switch to form combo ports. For more information, see
“Combo Ports” on page 22.
You must purchase SFP transceivers separately. For a list of
supported transceivers, contact your Allied Telesis distributor or
reseller.
See the product data sheets for the specific ATI SFP modules
supported by the AT-FS900M Series switches.
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
LEDs The following lists the switch LEDs:
Power LED; refer to “POWER LED” on page 23.
Fault LED; refer to “FAULT LED” on page 24.
Speed and Duplex Mode LEDs; refer to “MODE LEDs” on page 24.
Speed/Duplex and Link/Activity LEDs for the twisted-pair ports;
refer to “Port LEDs” on page 25.
Link/Activity LEDs for the SFP slots; refer to “SFP Slot LEDs” on
page 26.
Installation
Options
MAC Address
Table
The AT-FS900M Series switches can be installed in the following ways:
Rack mounted in a 19-inch equipment rack
Mounted on a desk or tabletop
If installing the switch in an equipment rack, rack mounting equipment
provided with the switch depends on the switch model as follows:
AT-FS909M and AT-FS917M: rack mounting equipment must be
purchased separately. The rack mounting kit model number is ATRKMT-J05.
AT-FS926M: rack mounting hardware is included in the shipping
package.
Here are the basic features of the MAC address table:
Storage capacity up to 8KB MAC address entries
Automatic learning and aging
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Chapter 1: Overview
AT-FS926M
AT-FS917M
AT-FS909M
10/100/100Base-T
Twisted-Pair Ports
Reset Button
SFP
Console Port
Status LEDs
Mode
Button
Mode
LEDs
SFP LED
with Port LEDs
Slot
10/100/1000Base-T
Combo Port with
Port LED
10/100/100Base-T Twisted-Pair Ports
Reset Button
SFP
Console Port
Status LEDs
Mode
Button
Mode
LEDs
SFP LED
with Port LEDs
Slot
10/100/1000Base-T
Combo Port with
Port LED
10/100/100Base-T Twisted-Pair Ports
Reset Button
SFP Slots with
Console Port
Status LEDs
Mode
Button
Mode
LEDs
with Port LEDs
SFP LEDs
10/100/1000Base-T
Combo Ports with
with Port LEDs
Front and Back Panels
Figure 1 illustrates the front panels of the AT-FS909M, AT-FS917M, and
AT-FS926M Fast Ethernet Switches.
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Figure 1. AT-FS909M, AT-FS917M, and AT-FS926M Front Panels
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
AT-FS926M
AT-FS909M & AT-FS917M
AC Input
AC Input
Figure 2 illustrates the back panels of the AT-FS909M, AT-FS917M, and
AT-FS926M switches.
Figure 2. AT-FS909M, AT-FS917M, and AT-FS926M Back Panels
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Chapter 1: Overview
Management Software
The switches are shipped with the ATPro management software preinstalled. The software provides a web-browser interface for in-band, overthe-network management.
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.
AT-FS900M Series Management Software Web User’s Guide
AT-FS900M Series Command Line Interface User’s Guide
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Twisted-Pair Ports
Note
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
The AT-FS909M, AT-FS917M, and AT-FS926M Layer 2 Fast Ethernet
Switches feature 8, 16, and 24 twisted pair ports, respectively. All ports are
10Base-T and 100Base-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 55.
The ports have a maximum operating distance of 100 m (328 feet). For 10
Mbps operation, the ports require Category 3 or better 100 ohm shielded
or unshielded twisted-pair cabling. For 100 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.
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Chapter 1: Overview
Combo Ports
The AT-FS909M and AT-FS917M Switches have one combo port, and the
AT-FS926M Switch has two combo ports. Each combo port consists of
one 10/100/1000Base-T twisted pair port and one slot for an optional
100Base-FX or 1000Base-SX/LX SFP transceiver. The twisted pair ports
are identified with the letter “R” for “Redundant” on the front faceplates of
the units. The combo ports and slots are listed in Table 1.
Table 1. Combo Ports
Switch Twisted Pair Port SFP Slot
AT-FS9 0 9 M 9R 9
AT-FS917M 17R 17
AT-FS926M 25R 25
26R 26
The combo ports have the guidelines listed here:
Only one port in a pair, either the twisted-pair port or a
corresponding SFP module, can be active at a time.
The twisted-pair port is the active port when its SFP slot is empty,
or when an SFP module is installed, but has not established a link
to an end node.
The twisted-pair port automatically changes to the redundant
status mode when an SFP module establishes a link with an end
node.
A twisted-pair port automatically transitions back to the active
status when the link is lost on the SFP module.
In nearly all cases, a twisted-pair port and an SFP module share
the same configuration settings, including port settings, VLAN
assignments, access control lists, and spanning tree.
An exception to the shared settings is port speed. If you disable
Auto-Negotiation on a twisted-pair port and set the speed and
duplex mode manually, the speed reverts to Auto-Negotiation
when an SFP module establishes a link with an end node.
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
STATUS LEDs
Reset Button
LEDs
There are four types of LEDs on the AT-FS900M Series switches:
“STATUS LEDs”
“MODE LEDs” on page 24
“Port LEDs” on page 25
“SFP Slot LEDs” on page 26
STATUS LEDs STATUS LEDs display the status of the switch.
STATUS LEDs are as follows:
“POWER LED”
“FAULT LED” on page 24
The STATUS LEDs are located on the left side of the front panel of the
switch. See Figure 3.
Figure 3. STATUS LEDs
POWER LED
The POWER LED reports the status of AC power.
Table 2 describes the states of the POWER LED.
Table 2. POWER LED Functional Description
State Description
Off Indicates either the switch is not receiving
AC power or the AC input power is operating
outside the normal range.
Steady
Green
The switch is receiving AC input power and is
operating normally.
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Chapter 1: Overview
MODE LEDs
Mode Button
FAULT LED
The FAULT LED reports any conditions on the switch that are not normal.
Table 3 describes the states of the FAULT LED.
Table 3. FAULT LED Functional Description
State Description
Off Normal switch operation.
Steady
Abnormal system operation.
Red
Flashing
Red
One of following:
Firmware downloading and being
written to flash memory.
DC internal power operating outside
the normal range.
Temperature out of range.
MODE LEDs The MODE LEDs display which mode is selected on the switch: Speed or
Duplex. The mode is selected using the Mode button, located on the left
side of the front panel of the switch. For a description of the Mode button,
refer to “Mode Button” on page 28.
The MODE LEDs are located on the left side of the front panel of the
switch. See Figure 4.
Figure 4. MODE LEDs
Table 4 on page 25 describes the MODE LEDs for the AT-FS900M Series
switches.
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
LINK/ACT MODE
LINK/ACT MODE
Table 4. MODE LED Functional Descriptions
LED State Description
SPEED
Steady
Green
Off SPEED is not the selected mode. Ports
SPEED is the selected mode. Ports display
SPEED status.
display DUPLEX status.
DUPLEX
Steady
Green
DUPLEX is the selected mode. Ports display
DUPLEX status.
Off DUPLEX is not the selected mode. Ports
display SPEED status.
Port LEDs The Port LEDs report the link activity and speed status of each 10/100
BaseT port.
The Port LEDs are shown in Figure 5.
Figure 5. Port LEDs
Table 5 describes the Port LEDs for the AT-FS900M Series switches.
.
Table 5. Port LED Functional Descriptions
LED State Description
Off The port has not established a link with a
network device.
Link/Activity
On The port has established a link with a
network device.
Flashing
Green
The port is transmitting or receiving
network packets.
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Chapter 1: Overview
SFP/Slot LEDs
Table 5. Port LED Functional Descriptions
LED State Description
Off The maximum operating speed of the
port is 10 Mbps or link not established.
Speed
Steady
Green
The maximum operating speed of the
port is 100 Mbps.
Off Half-duplex link established or link not
established.
Duplex
Steady
Full-duplex link established.
Green
SFP Slot LEDs The SFP Slot LEDs report the link activity status of each SFP slot.
The AT-FS926M SFP Slot LEDs are shown in Figure 6.
Figure 6. SFP Slot LEDs
Table 6 describes the SFP Slot LEDs for the AT-FS900M Series switches.
.
Table 6. SFP Slot LED Functional Descriptions
LED State Description
Off The port has not established a link with a
network device.
Link/Activity
On The port has established a link with a
network device.
Flashing
Green
The port is transmitting or receiving
network packets.
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Reset Button
Caution
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Pressing the Reset button resets your switch.
The Reset button is located next to the STATUS LEDs. See Figure 3 on
page 23.
This initiates a system reboot of the switch and reloads the current
configuration file.
The switch does not forward network traffic during the reset process.
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Chapter 1: Overview
Mode Button
Use the Mode button to select whether the Port LEDs display the Link
Activity or speed and duplex status.
The Mode button is located next to the MODE LEDs. See Figure 4 on
page 24.
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Power Supply
Note
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Each switch has an internal power supply with a single AC power supply
socket on the back panel. To power the switch on or off, connect or
disconnect the power cord provided with the switch. A power cord is
supplied with the switch.
For the power requirements, see the “Power Specifications” on
page 54.
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Chapter 1: Overview
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Chapter 2
Installation
This chapter contains the following sections:
“Reviewing Safety Precautions” on page 32
“Selecting a Site for the Switch” on page 35
“Cable Specifications” on page 36
“Unpacking the Switch” on page 37
“Installing the Power Cord Retaining Clip” on page 39
“Installing the Switch on a Desktop or Table” on page 41
“Installing the Switch in an Equipment Rack” on page 42
“Installing SFP Transceivers” on page 44
“Cabling the Switch” on page 47
“Powering On the Switch” on page 48
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Chapter 2: Installation
Note
Warning
Warning
Warning
Warning
Note
Reviewing Safety Precautions
Please review the following safety precautions before you begin to install
the chassis or any of its components.
The indicates that a translation of the safety statement is
available in a PDF document titled Translated Safety Statements
posted on the Allied Telesis website at www.alliedtelesis.com/
support.
To prevent electric shock, do not remove the cover. No userserviceable parts inside. This unit contains hazardous voltages and
should only be opened by a trained and qualified technician. To
avoid the possibility of electric shock, disconnect electric power to
the product before connecting or disconnecting the cables. E1
Do not work on equipment or cables during periods of lightning
activity. E2
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord. E3
Class I Equipment. This equipment must be earthed. The power
plug must be connected to a properly wired earth-ground socket
outlet. An improperly wired socket outlet could place hazardous
voltages on accessible metal parts. E4
Pluggable Equipment. The socket outlet shall be installed near the
equipment and shall be easily accessible. E5
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Caution
Warning
Note
Note
Warning
Note
Caution
Air vents must not be blocked and must have free access to the
room ambient air for cooling. E6
Operating Temperature. The AT-FS909M and AT-FS917M are
designed for a maximum ambient temperature of 50° C.
E57. The
AT-FS926M is designed for a maximum ambient temperature of 40°
C. E7
All Countries: Install product in accordance with local and National
Electrical Codes. E8
Circuit Overloading: Consideration should be given to the
connection of the equipment to the supply circuit and the effect that
overloading of circuits might have on over-current protection and
supply wiring. Appropriate consideration of equipment nameplate
ratings should be used when addressing this concern. E21
Mounting of the equipment in the rack should be such that a
hazardous condition is not created due to uneven mechanical
loading. E25
If installed in a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be greater than
the room ambient temperature. Therefore, consideration should be
given to installing the equipment in an environment compatible with
the manufacturer’s maximum rated ambient temperature (Tmra).
E35
Installation of the equipment in a rack should be such that the
amount of air flow required for safe operation of the equipment is not
compromised. E36
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Chapter 2: Installation
Warning
Reliable earthing of rack-mounted equipment should be maintained.
Particular attention should be given to supply connections other than
direct connections to the branch circuits (for example, use of power
strips). E37
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Selecting a Site for the Switch
Observe the following requirements when choosing a site for your switch:
If you plan to install the switch in an equipment rack, verify that the
rack is safely secured and will not tip over. Devices in a rack should
be installed starting at the bottom, with the heavier devices near
the bottom of the rack.
If you are installing the switch on a table, verify that the table is
level and secure.
The power outlet for the switch should be located near the unit and
should be easily accessible.
The site should provide for easy access to the ports on the front of
the switch. This will make it easier for you to connect and
disconnect cables, as well as view the switch’s LEDs.
Air flow around the unit and through its vents on the side and rear
should not be restricted so that the switch can maintain adequate
cooling.
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Do not place objects on top of the switch.
Do not expose the switch to moisture or water.
Ensure that the site is a dust-free environment.
You should use dedicated power circuits or power conditioners to
supply reliable electrical power to the network devices.
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Chapter 2: Installation
Note
Cable Specifications
Table 7 contains the cable specifications for the twisted-pair ports.
Table 7. Twisted-Pair Cabling and Distances
Speed Type of Cable
Maximum
Operating
Distance
10 Mbps Standard TIA/EIA 568-B-compliant
Category 3 or better shielded or
unshielded cabling with 100 ohm
impedance and a frequency of 16
MHz.
100 Mbps Standard TIA/EIA 568-A-compliant
Category 5 or TIA/EIA 568-Bcompliant Enhanced Category 5
(Cat 5e) shielded or unshielded
cabling with 100 ohm impedance
and a frequency of 100 MHz.
The twisted pair ports on the switch feature auto-MDI when
operating at 10 or 100 Mbps. A port is configured as MDI or MDI-X
when it is connected to an end node. Consequently, you can use a
straight-through twisted pair cable when connecting any type of
network device to a port on the switch.
100 m (328 ft)
100 m (328 ft)
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Unpacking the Switch
Note
Note
To unpack the switch, perform the following procedure:
1. Remove all of the components from the shipping package.
2. Place the switch on a level, secure surface.
3. In addition to the switch, verify that the shipping container includes the
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Store the packaging material in a safe location. You must use the
original shipping material if you need to return the unit to Allied
Telesis.
following items shown in Figure 7 on page 38.
For the AT-FS909M and AT-FS917M, rack mounting equipment
(brackets and screws) is not included in the shipping package and
must be purchased separately. Its rack mounting kit model number
is AT-RKMT-J05.
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Chapter 2: Installation
Retaining clip
Management cable
Four rubber feet
(pre-installed)
One regional AC
power cord
One or two SFP slot
dust covers (preinstalled).
(for desktop installation)
Two equipment rack
brackets
(not included in ATFS909M or AT-FS917M
package)
Four bracket screws
(not included in ATFS909M or AT-FS917M
package)
Two retaining plates
(FS926M only)
38
Figure 7. Shipping Package Contents
Page 39
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Note
Installing the Power Cord Retaining Clip
Perform the following procedure to install the power cord retaining clip on
the AT-FS900M switch:
The AT-FS926M requires installation of retaining plates in addition
to the clip, as noted in the following procedure.
1. Locate the power cord retaining clip, as shown in Figure 8.
Figure 8. Power Cord Retaining Clip
For the AT-FS926M, also locate the power cord retaining plates, in
addition to the clip, as shown in Figure 9.
Figure 9. Power Cord Retaining Plates
2. For the AT-FS926M only, perform the following and refer to Figure 10
on page 40. For all other switches, skip to Step 3.
a. Using a Phillips screwdriver, remove the screws on the AC power
connector panel of the switch.
b. Position the retaining plates against the AC power connector
panel, then replace the screws through the retaining plate holes
and screw holes in the AC power connector panel.
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Chapter 2: Installation
Figure 10. Installing Retaining Plates on the Power Connector
3. Install the clip on the AC power connector on the back panel of the
switch. With the “u” of the clip facing down, press the sides of the clip
toward the center and insert the short ends into the holes in the
retaining bracket, as shown in Figure 11.
40
Figure 11. Inserting the Retaining Clip into the Retaining Bracket
Page 41
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Installing the Switch on a Desktop or Table
You may install the switches on a desktop or table, or in a standard 19inch equipment rack. To install the switch in a rack, see “Installing the
Switch in an Equipment Rack” on page 42.
To place the switch on a desktop or table, perform the following procedure:
1. Remove all equipment from the package and store the packaging
material in a safe place.
2. Place the switch on a flat, secure surface (such as a desk or table)
leaving ample space around the unit for ventilation.
3. Go to “Installing SFP Transceivers” on page 44 or “Cabling the Switch”
on page 47.
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Chapter 2: Installation
Note
Installing the Switch in an Equipment Rack
The AT-FS926M rack mounting hardware is included in the shipping
package. However, the AT-FS909M and AT-FS917M rack mounting
equipment must be purchased separately. The rack mounting kit
model number is AT-RKMT-J05.
To install the switch in a standard 19-inch equipment rack, perform the
following procedure:
1. If the rubber feet are attached to the bottom of the switch, remove
them using a flat-head screwdriver.
2. Attach the two rack mount brackets to the sides of the switch using the
bracket screws that come with the unit. See Figure 12.
42
Figure 12. Attaching the Rack-Mount Brackets to the Switch
3. Mount the switch in a standard 19-inch equipment rack using four
equipment rack screws (not provided with the switch). See Figure 13.
Figure 13. Mounting the Switch in an Equipment Rack
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
4. Go to “Installing SFP Transceivers” on page 44 or skip to “Cabling the
Switch” on page 47 if not installing SFP transceivers.
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Chapter 2: Installation
Note
Note
Warning
Installing SFP Transceivers
To install an SFP transceiver, perform the following procedure:
The transceiver can be hot-swapped; you do not need to power off
the switch to install a transceiver. However, you should always
remove the cables before removing the transceiver.
You should always install the transceiver before connecting the
fiber-optic cables to it.
1. Remove the transceiver from its shipping container and store the
packaging material in a safe location.
An SFP transceiver can be damaged by static electricity. Be sure to
observe all standard electrostatic discharge (ESD) precautions,
such as wearing an antistatic wrist strap, to avoid damaging the
transceiver.
2. Remove the dust plug from an SFP slot. See Figure 14.
Figure 14. Removing the Dust Plug from an SFP Slot
3. Position the SFP transceiver with the label facing up.
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Note
Note
SFP Transceiver
Handle
4. Slide the transceiver into the SFP slot until it clicks into place. See
Figure 15.
Figure 15. Inserting the SFP
5. Verify that the handle on the transceiver is in the upright position, as
shown in Figure 16. This secures the transceiver and prevents it from
being dislodged from the slot.
Figure 16. Positioning the SFP Handle in the Upright Position
6. Repeat Step 2 through Step 5 to install additional SFP transceivers.
SFP transceivers are dust-sensitive. Always keep the plug in the
optical bores when a fiber-optic cable is not installed, or when
storing the SFP. When you do remove the plug, keep it for future
use.
Unnecessary removal and insertion of an SFP can lead to premature
failure.
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Chapter 2: Installation
For information on the cable specifications of the SFP, consult the
documentation shipped with the SFP.
7. Go to “Cabling the Switch” on page 47.
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Cabling the Switch
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Observe the following guidelines when connecting twisted-pair and fiberoptic cables to the ports on the switch:
The connector on the cable should fit snugly into the port on the
switch. The tab on the connector should lock the connector into
place.
Because the twisted-pair ports have auto-MDI/MDI-X, you may use
straight-through twisted-pair cable to connect any type of network
device to the switch.
If your network topology contains a loop where two or more
network devices can communicate with each other over more than
one network path, do not connect the network cables that form the
loop until after you activate a spanning tree protocol on the switch.
Data loops can adversely affect network performance.
If you are creating a port trunk, do not connect the cables of the
trunk to the switch until after you have created the trunk in the
switch’s management software and the management software of
the switch at the other end of the trunk cables. Otherwise, a
network loop will result which can adversely affect network
performance.
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Chapter 2: Installation
Warning
Powering On the Switch
To power on the switch, perform the following procedure:
1. Lift up the retaining clip and insert the power cord into the AC power
connector on the back of the switch, as shown in Figure 17.
48
Figure 17. Plugging in the AC Power Cord
2. Lower the retaining clip over the AC Power Cord as shown in
Figure 17.
3. Plug the other end of the power cord into a wall outlet.
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord. E3
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AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Note
Pluggable Equipment. The socket outlet shall be installed near the
equipment and shall be easily accessible. E5
4. Verify that the POWER LED is green. If the LED is OFF, see Chapter
3, “Troubleshooting” on page 51.
The switch is now powered on and ready for network operations. For
information on how to manage the switch, see the AT-FS900M Series CLI
or Web Management Software User’s Guide.
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Chapter 2: Installation
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Chapter 3
Note
Troubleshooting
This chapter contains information on how to troubleshoot the switch if a
problem occurs.
For further assistance, please contact Allied Telesis Technical
Support at www.alliedtelesis.com/support.
Problem 1: The POWER LED on the front of the switch is off.
Solutions: The unit is not receiving power. Try the following:
Verify that the power cord is securely connected to the power
source and to the AC connector on the back panel of the switch.
Verify that the power outlet has power by connecting another
device to it.
Try connecting the unit to another power source.
Try a different power cord.
Verify that the voltage from the power source is within the required
levels for your region.
Problem 2: A twisted-pair port on the switch is connected to a network
device, but the port’s Link Activity LED is off.
Solutions: The port is unable to establish a link to a network device. Try
the following:
Verify that the network device connected to the twisted-pair port is
powered on and is operating properly.
Verify that the twisted-pair cable is securely connected to the port
on the switch channel and to the port on the remote network
device.
Verify that the port is connected to the correct twisted-pair cable.
This is to eliminate the possibility that the port is connected to the
wrong network device, such as a powered-off device.
Try connecting another network device to the twisted-pair port with
a different cable. If the twisted-pair port is able to establish a link,
then the problem is with the cable or the other network device.
Verify that the twisted-pair cable does not exceed 100 meters (328
feet).
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Chapter 3: Troubleshooting
Verify that you are using the appropriate category of twisted-pair
cable: Category 3 or better for 10 Mbps operation and Category 5
and Category 5E for 100 Mbps operation.
Problem 3: The Link Activity LED for an SFP transceiver is off.
Solutions: The fiber-optic port on the transceiver is unable to establish a
link to a network device. Try the following:
Verify that the network device connected to the fiber-optic port is
operating properly.
Verify that the fiber-optic cable is securely connected to the port on
the switch channel and to the port on the remote network device.
Check that the SFP module is fully inserted in the slot.
Verify that the operating specifications of the fiber-optic ports on
the SFP transceiver and the remote network device are
compatible.
Verify that the correct type of fiber-optic cabling is being used.
Verify that the port is connected to the correct fiber-optic cable.
This is to eliminate the possibility that the port is connected to the
wrong remote network device, such as a powered-off device.
Try connecting another network device to the fiber-optic port using
a different cable. If the port is able to establish a link, then the
problem is with the cable or with the other network device.
Use the switch’s management software to verify that the port is
enabled.
If the remote network device is a management device, use its
management firmware to determine whether its port is enabled.
Test the attenuation on the fiber-optic cable with a fiber-optic tester
to determine whether the optical signal is too weak (sensitivity) or
too strong (maximum input power).
Problem 4: Network performance between a twisted-pair port on the
switch and a network device is slow.
Solution: There might be a duplex-mode mismatch between the port and
the network device. This occurs when a twisted-pair port using AutoNegotiation is connected to a device with a fixed duplex mode of full
duplex. If this is the cause of the problem, adjust the duplex mode of the
port on the network device or on the switch so that both ports are using the
same duplex mode.
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Appendix A
Technical Specifications
Physical Specifications
Dimensions
Table 8. Chassis Dimensions
Model W x D x H mm (in)
AT-FS909M 263 mm x 179 mm x 38 mm
(10.35 in x 7.0 in x 1.5 in)
AT-FS917M 263 mm x 179 mm x 38 mm
(10.35 in x 7.0 in x 1.5 in)
AT-FS926M 341 mm x 231 mm x 44 mm
(13.4 in x 9.1 in x 1.7 in)
Weight
Environmental Specifications
Operating Temperature:
AT-FS909M, AT-FS917M
Operating Temperature:
AT-FS926M
Table 9. Chassis Weight
Model kg (lbs)
AT-FS909M 1.3 kg (2.86 lbs)
AT-FS917M 1.4 kg (3.09 lbs)
AT-FS926M 2.1 kg (4.63 lbs)
Table 10. Environmental Specifications
0° C to 50° C (32° F to 122° F)
0° C to 40° C (32° F to 104° F)
Storage Temperature -20° C to 60° C (-4° F to 140° F)
Operating Humidity 5% to 80% non-condensing
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Appendix A: Technical Specifications
Power Specifications
Input Supply Voltage - 100-240 VAC, 50 - 60 Hz
Table 10. Environmental Specifications
Storage Humidity 5% to 95% non-condensing
Operating Altitude Range Up to 2,000 m (6,562 ft)
Table 11. Power Specifications
AT-FS909M 11 W
AT-FS917M 13 W
AT-FS926M 16 W
Safety and Electromagnetic Emissions Certifications
Table 12. Safety and Electromagnetic Emissions Certifications
FCC Part 15 Class A
RFI Emissions
Immunity EN55024
Electrical Safety EN60950-1 (ULEU), UL 60950-1
Environmental Compliance EU-RoHS compliant, WEEE
CISPR Class A
EN55022:2006/A:2007 Class A
RCM
(
CULUS
China RoHS compliant
), CE
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Connectors and Port Pinouts
This section lists the connectors and connector pinouts.
Figure 18 illustrates the pin layout for an RJ-45 connector and port.
Figure 18. RJ-45 Connector and Port Pin Layout
Table 13 lists the RJ-45 pin signals when a twisted-pair port is operating in
the MDI configuration.
Table 13. MDI Pin Signals (10Base-T or 100Base-TX)
AT-FS909M, AT-FS917M, and AT-FS926M Switches Installation Guide
Pin Signal
1TX+
2TX-
3RX+
6RX-
Table 14 lists the RJ-45 port pin signals when a twisted-pair port is
operating in the MDI-X configuration.
Table 14. MDI-X Pin Signals (10Base-T or 100Base-TX)
Pin Signal
1RX+
2RX-
3TX+
6TX-
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Appendix A: Technical Specifications
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