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AT-GS970M-10
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Allied Telesis AT-GS970M-10 Service Manual

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Page 1
CentreCOM® GS970M Series
MANAGED GIGABIT ETHERNET SWITCH
GS970M/10
GS970M/10PS
GS970M/18
GS970M/18PS
GS970M/28PS
Installation Guide
613-002439 REV A
Page 2
Copyright 2017 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.
EMC EN 55022 Class A
EN 55024
EN 61000-3-2
EN 61000-3-3
EN 62311 FCC Part 15 (CFR 47) Class A VCCI Class A CISPR 22 Class A
ICES-003
Warning: In a
domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
Environmental RoHS Compliance WEEE
Electrical Safety EN 60950-1 (edition 2)
IEC 60950-1 (edition 2) UL 60950-1
(edition 2)
Laser Safety EN 60825
Regulatory RCM Compliance CE
C-UL-US UL-EU
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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.
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Contents

Preface............................................................................................................................................................... 1
Symbol conventions ..................................................................................................................................... 2
Contacting Allied Telesis.............................................................................................................................. 3
Chapter 1: Overview .......................................................................................................................................... 5
Features....................................................................................................................................................... 6
Twisted pair ports .................................................................................................................................. 6
SFP slots ............................................................................................................................................... 6
LEDs...................................................................................................................................................... 7
Installation options................................................................................................................................. 7
Power conservation ............................................................................................................................... 7
MAC address table ................................................................................................................................ 7
Package contents for the GS970M/10 and GS970M/10PS Switch.............................................................. 8
Package contents for GS970M/18 and GS970M/18PS Switches................................................................ 9
Package contents for the GS970M/28 Switch............................................................................................ 10
Package contents for the GS970M/28PS Switch....................................................................................... 11
Front and back panels on the GS970M/10 Switch..................................................................................... 12
Front and back panels on the GS970M/10PS Switch ................................................................................14
Front and back panels on the GS970M/18 Switch..................................................................................... 16
Front and back panels on the GS970M/18PS Switch ................................................................................18
Front and back panels on the GS970M/28 Switch..................................................................................... 20
Front and back panels on the GS970M/28PS Switch ................................................................................22
Management software................................................................................................................................ 24
Twisted pair ports....................................................................................................................................... 25
Cable requirements for non-PoE ports ................................................................................................ 25
Power over Ethernet (PoE) ........................................................................................................................ 27
PoE standards ..................................................................................................................................... 27
Powered device classes ...................................................................................................................... 28
Cable requirements ............................................................................................................................. 28
Power budget ...................................................................................................................................... 29
Port prioritization.................................................................................................................................. 30
Wiring implementation ......................................................................................................................... 31
LEDs ...........................................................
POWER and FAULT LEDs .................................................................................................................. 32
10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and PoE status LED ................................... 34
10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and Duplex/Collision LED ........................... 36
SFP LEDs............................................................................................................................................ 38
SD card LED........................................................................................................................................ 39
ecofriendly button....................................................................................................................................... 41
Power supply.............................................................................................................................................. 42
Fans ........................................................................................................................................................... 43
............................................................................................... 32
Chapter 2: Installation ...................................................................................................................................... 45
Reviewing safety precautions .................................................................................................................... 46
Selecting a site for the switch..................................................................................................................... 48
Cable specifications ................................................................................................................................... 49
Unpacking the switch:GS970M/10 and GS970M/10PS ............................................................................. 50
Unpacking the switch: GS970M/18 and GS970M/18PS ............................................................................ 51
Unpacking the switch: GS970M/28 ............................................................................................................ 52
Unpacking the switch: GS970M/28PS ....................................................................................................... 53
Installing the switch on a table or a desktop .............................................................................................. 54
Removing the feet from a switch before installing it in an equipment rack or on a wall ............................. 55
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Installing a GS970M/10 switch in an equipment rack ................................................................................. 56
Installing a GS970M/10PS switch in an equipment rack ............................................................................ 59
Installing a GS970M/18, GS970M/18PS or GS970M/28 switch in an equipment rack .............................. 61
Installing a GS970M/28PS switch in an equipment rack ............................................................................ 63
Installing a GS970M/10 switch on a wall .................................................................................................... 65
Installing a GS970M/18, GS970M/28 or AT-GS970M PS Series switch on a wall.....................................67
Cabling the switch ......................................................................................................................................69
Powering on the switch............................................................................................................................... 71
Starting a local management session......................................................................................................... 73
Monitoring the initialization processes........................................................................................................75
Installing optional SFP transceivers ........................................................................................................... 78
Chapter 3: Troubleshooting ............................................................................................................................. 81
Appendix A: Technical Specifications .............................................................................................................. 85
Physical specifications................................................................................................................................ 85
Dimensions .......................................................................................................................................... 85
Weight..................................................................................................................................................85
Environmental specifications ......................................................................................................................86
Power specifications................................................................................................................................... 86
Electrical safety and electromagnetic certifications .................................................................................... 87
Connectors and port pinouts ...................................................................................................................... 88
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Figures

Figure 1: GS970M/10 and GS970M/10PS packaging ........................................................................................................... 8
Figure 2: GS970M/18 and GS970M/18PS packaging ........................................................................................................... 9
Figure 3: GS970M/28 packaging ......................................................................................................................................... 10
Figure 4: GS970M/28PS packaging .................................................................................................................................... 11
Figure 5: GS970M/10 front panel ........................................................................................................................................ 12
Figure 6: GS970M/10 back panel ........................................................................................................................................ 13
Figure 7: GS970M/10PS front panel ................................................................................................................................... 14
Figure 8: GS970M/10PS back panel ................................................................................................................................... 15
Figure 9: GS970M/18 front panel ........................................................................................................................................ 16
Figure 10: GS970M/18 back panel...................................................................................................................................... 17
Figure 11: GS970M/18PS front panel ................................................................................................................................. 18
Figure 12: GS970M/18PS back panel ................................................................................................................................. 19
Figure 13: GS970M/28 front panel ...................................................................................................................................... 20
Figure 14: GS970M/28 back panel...................................................................................................................................... 21
Figure 15: GS970M/28PS front panel ................................................................................................................................. 22
Figure 16: GS970M/28PS back panel ................................................................................................................................. 23
Figure 17: POWER LED on a GS970M Series Switch ........................................................................................................ 32
Figure 18: FAULT LED on a GS970M Series Switch .......................................................................................................... 33
Figure 19: Link/Activity/Speed and PoE LEDs..................................................................................................................... 34
Figure 20: Link/Activity/Speed and Duplex/Collision LEDs.................................................................................................. 36
Figure 21: SFP Link/Activity LEDs on a GS970M Series Switch......................................................................................... 38
Figure 22: SD card slot LED on a GS970M Series Switch.................................................................................................. 39
Figure 23: ecofriendly button on a GS970M Series Switch ................................................................................................. 41
Figure 24: Attaching the rubber feet to a switch .................................................................................................................. 54
Figure 25: Removing the rubber feet from a switch............................................................................................................. 55
Figure 26: Fitting handles to rack mount brackets............................................................................................................... 56
Figure 27: Fitting brackets to the mounting ......................................................................................................................... 56
Figure 28: Attaching cable tray brackets ............................................................................................................................. 57
Figure 29: Mounting a GS970M/10 Switch in the brackets.................................................................................................. 57
Figure 30: Mounting a GS970M/10 Switch in the rack ........................................................................................................ 58
Figure 31: Securing cables to the cable tray ....................................................................................................................... 58
Figure 32: Attaching rack mount brackets to a GS970M/10PS ........................................................................................... 59
Figure 33: Mounting a GS970M/10PS switch in an equipment rack ................................................................................... 60
Figure 34: Attaching rack mount brackets to the GS970M/18, GS970M/18PS or GS970M/28 switch................................ 61
Figure 35: Mounting a GS970M/18, GS970M/18PS or
GS970M/28 switch in an equipment rack ............................................................................................................................ 62
Figure 36: Attaching rack mount brackets to the GS970M/28PS switch ............................................................................. 63
Figure 37: Mounting a GS970M/28PS switch in an equipment rack ................................................................................... 64
Figure 38: Ridges on the AT-BRKT-J23 that the switch rests on when installed with the front panel facing up ................. 65
Figure 39: Securing the GS970M/10 switch to the wall with the front panel facing up ........................................................ 66
Figure 40: Securing the GS970M/10 switch to the wall with the front panel facing right ..................................................... 66
Figure 41: Attaching wall mount brackets to the side of the switch ..................................................................................... 67
Figure 42: Securing the switch to the wall .......................................................................................................................... 68
Figure 43: Lifting the AC power cable hook on a GS970M Series Switch........................................................................... 71
Figure 44: Plugging in the AC power cord on a GS970M Series Switch ............................................................................. 71
Figure 45: Connecting the management cable to the console port of a GS970M Series Switch ........................................ 73
Figure 46: Switch initialization messages............................................................................................................................ 75
Figure 47: Switch initialization messages (continued) ......................................................................................................... 76
Figure 48: Switch initialization messages (continued) ........................................................................................................ 77
Figure 49: Removing the dust plug from an SFP slot ............................................................................
Figure 50: Inserting an SFP transceiver into an SFP slot.................................................................................................... 79
Figure 51: Positioning the SFP handle in the upright position ............................................................................................ 79
Figure 52: Ejecting an SFP transceiver after lowering the SFP handle to the downwards position .................................... 80
Figure 53: RJ45 connector and port pin layout.................................................................................................................... 88
.............................. 78
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Tables

Table 1. Twisted pair cable requirements for the non-PoE ports........................................................................................ 25
Table 2. IEEE powered device classes............................................................................................................................... 28
Table 3. Twisted pair cable requirements for the 10BASE-T and 100BASE-TX ports at 10 or 100Mbps........................... 28
Table 4. Twisted pair cable requirements for the 10/1000BASE-T and 100BASE-TX ports at 1000Mbps......................... 29
Table 5. POWER LED functional descriptions................................................................................................................... 33
Table 6. FAULT LED functional descriptions....................................................................................................................... 33
Table 7. Link/Activity/Speed and PoE LED descriptions..................................................................................................... 35
Table 8. Link/Activity/Speed and Duplex/Collision LED descriptions.................................................................................. 37
Table 9. SFP Link/Activity LED functional descriptions....................................................................................................... 39
Table 10. SD card LED functional descriptions................................................................................................................... 40
Table 11. Twisted pair cabling and distances..................................................................................................................... 49
Table 12. Chassis dimensions............................................................................................................................................. 85
Table 13. Chassis weight..................................................................................................................................................... 85
Table 14. Environmental specifications............................................................................................................................... 86
Table 15. Input supply voltage............................................................................................................................................. 86
Table 16. Power specifications............................................................................................................................................ 86
Table 17. Safety and electromagnetic emissions certifications........................................................................................... 87
Table 18. MDI pin signals (10BASE-T or 100BASE-TX)..................................................................................................... 88
Table 19. MDIX pin signals (10BASE-T or 100BASE-TX)................................................................................................... 88
Table 20. RJ-45 1000BASE-T connector pinouts................................................................................................................ 89
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Preface

GS9790M Series Switch Installation Guide
This guide contains the installation instructions for the following GS9790M Series Switches:
GS970M/10
GS970M/10PS
GS970M/18
GS970M18PS
GS970M/28
GS970M/28PS
This preface contains the following sections:
“Symbol conventions” on page 2
“Contacting Allied Telesis” on page 3
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Preface
Note
Caution
Warning
Warning
Symbol conventions
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 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.
GS9790M Series Switch Installation Guide
www.alliedtelesis.com/support. You can find links for
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/how-to-buy and select your region.
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Preface
4
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Chapter 1: Overview

This chapter provides descriptions of the GS970M/10, GS970M/10PS, GS970M/18, GS970M/18PS, GS970M/28, and GS970M/28PS Gigabit Ethernet Switches and contains the following sections:
“Features” on page 6
“Package contents for the GS970M/10 and GS970M/10PS Switch”
on page 8
“Package contents for GS970M/18 and GS970M/18PS Switches”
on page 9
“Package contents for the GS970M/28 Switch” on page 10
“Package contents for the GS970M/28PS Switch” on page 11
“Front and back panels on the GS970M/10 Switch” on page 12
“Front and back panels on the GS970M/10PS Switch” on page 14
GS9790M Series Switch Installation Guide
“Front and back panels on the GS970M/18 Switch” on page 16
“Front and back panels on the GS970M/18PS Switch” on page 18
“Front and back panels on the GS970M/28 Switch” on page 20
“Front and back panels on the GS970M/28PS Switch” on page 22
“Twisted pair ports” on page 25
“Power over Ethernet (PoE)” on page 27
“LEDs” on page 32
“ecofriendly button” on page 41
“Power supply” on page 42
“Fans” on page 43
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Chapter : Chapter 1: Overview
Note
Features
This section describes the hardware features of the GS970M Series Gigabit Ethernet Switches.
Twisted pair
ports
Here are the basic features of the 10/100/1000Mbps twisted-pair ports:
GS970M/10, GS970M/18 or GS970M/28 switches: 8, 16 or 24
non-PoE ports per switch
GS970M/10PS, GS970M/18PS, or GS970M/28PS switches: 8, 16
or 24 PoE ports per switch
10BASE-T (IEEE 802.3i), 100BASE-TX (IEEE 802.3u) and
1000BASE-T (IEEE 802.3ab) compliant
IEEE 802.3u Auto-Negotiation compliant
Auto-MDI/MDIX
PoE Plus
Full wire-speed non-blocking
IEEE 802.3x Flow Control in 10BASE-T/100BASE-TX full-duplex
operation
IEEE 802.3x Back Pressure in 10BASE-T/100BASE-TX half-
duplex operation
IEEE803.3z 1000BASE-T Flow Control
Support for jumbo packets up to 10KB
One RJ45 connector on front panel for RS232 console purposes.
SFP slots Here are the basic features of the SFP ports:
GS970M/10, GS970M/10PS,GS970M/18 and
GS970M/18PS switches: 2 SFP ports per switch
GS970M/28 and GS970M/28PS switches: 4 SFP ports per switch.
Available for 100Mbps or 1000Mbps of fiber, and 1000Mbps of
copper
Support 100BASE-FX and 1000BASE-SX/LX transceivers.
You need to 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 GS970M Series switches.
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LEDs Here is a brief description of the port LEDs:
Note
POWER and FAULT LEDs; refer to “POWER and FAULT LEDs”
on page 32.
Link/Activity/Speed/PoE LEDs for the PoE twisted pair ports; see
“10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and PoE status LED” on page 34.
Link/Activity/Speed/Duplex/Collision LEDs for the non-PoE twisted
pair ports; see “10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and Duplex/Collision LED” on page 36.
Link/Activity LEDs for the SFP slots; see “SFP LEDs” on page 38.
SD card LED: refer to “SD card LED” on page 39.
The ecofriendly button turns off the LEDs (excluding the POWER LED and SD card LED) to conserve electricity. See “ecofriendly button” on page 41.
GS9790M Series Switch Installation Guide
Installation
options
Power
conservation
MAC address
table
The switches can be installed in the following ways:
Rack mounted in a 19-inch equipment rack
Mounted on a desk or tabletop
Wall mounted
The switches implement Eco-Switch Green Power saving features and use less power than the METI specification. The switches have the following power conservation features:
ecofriendly 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
1000Mbps (port power scaling not available at 10 or 100Mbps)
Power shutdown on unused ports
Here are the basic features of the MAC address table:
Storage capacity up to 16K MAC address entries
Automatic learning and aging
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Chapter : Chapter 1: Overview
1 Power cable hook
GS970M/10 or GS970M/10PS
1 Power cable (1.8m) 1 Console cable (2m)
C
O
N
SO
L E
R
S-2
3 2
SD
F AU
LT
PO
W ER
S D
10
00
L
I N
K
A C
T
1 0/
1 0
0
L I
N K
AC
T
P D
O N
PD
E
R R
M
A X
C U
R
R
E N
T
S
F P
9
1 0
2
4
6
8
13
57
MA
C Addre
s s
L
a
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l
Package contents for the GS970M/10 and GS970M/10PS Switch
Figure 1 illustrates the package contents for the GS970M/10 and GS970M/10PS Gigabit Ethernet Switch.
FIGURE 1. GS970M/10 AND GS970M/10PS PACKAGING
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GS9790M Series Switch Installation Guide
1 Power cable hook
GS970M/18 or GS970M/18PS
1 Power cable (1.8m) 1 Console cable (2m)
M
AC
Ad
d
r es
s
La
b
e
l
Package contents for GS970M/18 and GS970M/18PS Switches
Figure 2 illustrates the package contents for the GS970M/18 and GS970M/18PS Gigabit Ethernet Switches.
FIGURE 2. GS970M/18 AND GS970M/18PS PACKAGING
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Chapter : Chapter 1: Overview
Package contents for the GS970M/28 Switch
Figure 3 illustrates the package contents for the GS970M/28 Gigabit Ethernet Switch.
FIGURE 3. GS970M/28 PACKAGING
GS970M/28
1 Power cable (1.8m) 1 Console cable (2m)
1 Power cable hook
2 x Brackets 6 x Screws
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Package contents for the GS970M/28PS Switch
2 x Brackets 6 x Screws
1 Power cable (1.8m) 1 Console cable (2m)
GS970M/28PS
1 Power cable hook
Figure 4 illustrates the package contents for the GS970M/28PS Gigabit Ethernet Switch.
FIGURE 4. GS970M/28PS PACKAGING
GS9790M Series Switch Installation Guide
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Chapter : Chapter 1: Overview
Link/activity/speed LED
Duplex Mode LED
SFP slots
ecofriendly button
SD card slot
Console port
SD/Fault/Power LEDs
10/100/1000 Mbps ports
Front and back panels on the GS970M/10 Switch
Figure 5 illustrates the front panel of the GS970M/10 Gigabit Ethernet Switch.
FIGURE 5. GS970M/10 FRONT PANEL
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GS9790M Series Switch Installation Guide
Power connector
Power cable hook
Power cable hook mount
Figure 6 illustrates the back panel of the GS970M/10 Gigabit Ethernet Switch.
FIGURE 6. GS970M/10 BACK PANEL
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Chapter : Chapter 1: Overview
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
SD/Fault/Power LEDs
10/100/1000Mbps PoE+ ports
Link/activity/speed LED
PoE status LED
SFP slots
Upper (left), lower (right)
SFP LEDs:
ecofriendly button
SD card slot
MAC address label
Console port
Front and back panels on the GS970M/10PS Switch
Figure 7 illustrates the front panel of the GS970M/10PS Gigabit Ethernet Switch.
FIGURE 7. GS970M/10PS FRONT PANEL
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GS9790M Series Switch Installation Guide
Power connector
Power cable hook
Power cable hook mount
Figure 8 illustrates the back panel of the GS970M/10PS Gigabit Ethernet Switch.
FIGURE 8. GS970M/10PS BACK PANEL
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Chapter : Chapter 1: Overview
Front and back panels on the GS970M/18 Switch
Figure 9 illustrates the front panel of the GS970M/18 Gigabit Ethernet Switch.
FIGURE 9. GS970M/18 FRONT PANEL
Duplex Mode LED
Link/activity/speed LED
10/100/1000 Mbps ports
SFP slots
SFP LEDs:
Upper (left), lower (right)
MAC Address Label
SD/Fault/Power LEDs
Console port
MAC address label
SD card slot
ecofriendly button
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GS9790M Series Switch Installation Guide
Figure 10 illustrates the back panel of the GS970M/18 Gigabit Ethernet Switch.
FIGURE 10. GS970M/18 BACK PANEL
Power connector
Power cable hook
Power cable hook mount
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Chapter : Chapter 1: Overview
Front and back panels on the GS970M/18PS Switch
Figure 11 illustrates the front panel of the GS970M/18PS Gigabit Ethernet Switch.
FIGURE 11. GS970M/18PS FRONT PANEL
PoE status LED
Link/activity/speed LED
10/100/1000Mbps PoE+ ports
MAC Address Label
SFP LEDs:
Upper (left), lower (right)
SFP slots
SD/Fault/Power LEDs
Console port
MAC address label
SD card slot
ecofriendly button
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GS9790M Series Switch Installation Guide
Power connector
Power cable hook
Power cable hook mount
Figure 12 illustrates the back panel of the GS970M/18PS Gigabit Ethernet Switch.
FIGURE 12. GS970M/18PS BACK PANEL
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Chapter : Chapter 1: Overview
Front and back panels on the GS970M/28 Switch
Figure 13 illustrates the front panel of the GS970M/28 Gigabit Ethernet Switch.
FIGURE 13. GS970M/28 FRONT PANEL
Duplex Mode LED
Link/activity/speed LED
10/100/1000 Mbps ports
SD/Fault/Power LEDs
Console port
SFP slots
SD card slot
ecofriendly button
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GS9790M Series Switch Installation Guide
Power connector
Power cable hook
Power cable hook mount
Figure 14 illustrates the back panel of the GS970M/28 Gigabit Ethernet Switch.
FIGURE 14. GS970M/28 BACK PANEL
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Chapter : Chapter 1: Overview
10/100/1000Mbps PoE+ ports
Link/activity/speed LED
PoE status LED
SFP slots
Upper (left), lower (right)
SFP LEDs:
SD card slot
Console port
SD/Fault/Power LEDs
ecofriendly button
Front and back panels on the GS970M/28PS Switch
Figure 15 illustrates the front panel of the GS970M/28PS Gigabit Ethernet Switch.
FIGURE 15. GS970M/28PS FRONT PANEL
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GS9790M Series Switch Installation Guide
Power connector
Power cable hook
Power cable hook mount
Figure 16 illustrates the back panel of the GS970M/28PS Gigabit Ethernet Switch.
FIGURE 16. GS970M/28PS BACK PANEL
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Chapter : Chapter 1: Overview
Management software
The switches are shipped with the management software pre-installed. The software provides a command line interface and a GUI (Graphical User Interface) for in-band, over-the-network management.
For full product documentation, see our online documentation Library. For AlliedWare Plus products, the Library includes the following documents:
Feature Overview and Configuration Guides - find these by clicking
Datasheet - find this by clicking here and searching for GS970M.
Command References - find these by clicking here and searching for
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.
here and searching for the feature name.
GS970M.
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Twisted pair ports
Note
GS9790M Series Switch Installation Guide
The number of twisted pair ports supported by each GS970M Series switch is:
8 ports: GS970M/10 and GS970M/10PS
16 ports: GS970M/18 and GS970M/18PS
24 ports: GS970M/28 and GS970M/28PS
All ports are 10BASE-T, 100BASE-TX, and 1000BASE-T 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 RJ45 connectors. For the port pinouts,
“Connectors and port pinouts” on page 88.
see
The ports have a maximum operating distance of 100 m (328 feet).
Cable
requirements for
non-PoE ports
The ports feature auto-MDI, which automatically configures the ports as MDI or MDIX. 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, as a duplex mode mismatch may occur. In this case, disable Auto-Negotiation and set the port’s speed and duplex mode manually.
Cable requirements for the non-PoE twisted pair ports are in Table 1.
TABLE 1. TWISTED PAIR CABLE REQUIREMENTS FOR THE NON-POE PORTS
Cable type
Cat 3: Standard TIA/EIA 568-B-compliant Category 3 shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz
10
Mbps
Yes Yes
100
Mbps
1000
Mbps
No
Cat 5: Standard TIA/EIA 568-A-compliant Category 5 shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz
Yes Yes
Yes
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Chapter : Chapter 1: Overview
TABLE 1. TWISTED PAIR CABLE REQUIREMENTS FOR THE NON-POE PORTS
Cable type
Cat 5e: Standard TIA/EIA 568-B-compliant Enhanced Category 5 (Cat 5e) shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz
Cat 6 or 6a: Standard TIA/EIA 568-B­compliant Category 6 or 6a shielded cabling
10
Mbps
100
Mbps
Yes Yes
Yes Yes
1000
Mbps
Yes
Yes
26
Page 37
Power over Ethernet (PoE)
The GS970M/10PS, GS970M/18PS and GS970M/28PS switches feature Power over Ethernet (PoE) on the 10/1000BASE-T and 100BASE-TX ports. PoE is used to supply power to network devices over the same twisted pair cables that carry the network traffic.
The main advantage of PoE is that it can make it easier to install a network. The selection of a location for a network device is often limited by whether there is a power source nearby. This often limits equipment placement or requires the added time and cost of having additional electrical sources installed. But with PoE, you can install PoE-compatible devices wherever they are needed without having to worry about whether there are power sources nearby.
A device that provides PoE to other network devices is referred to as power sourcing equipment (PSE). The GS970M Series switches act as PSE units by adding DC power to the network cable, thus functioning as a central power source for other network devices.
GS9790M Series Switch Installation Guide
Devices that receive their power from PSE are called powered devices (PD). Examples of PD include wireless access points, IP telephones, webcams, and even other Ethernet switches.
The switch automatically determines if a device connected to a port is a powered device. Ports that are connected to network nodes that are not powered devices (that is, devices that receive their power from another power source) function as regular Ethernet ports, without PoE. The PoE feature remains activated on the ports but no power is delivered to the devices.
PoE standards The GS970M Series PoE switches support these PoE standards:
PoE (IEEE 802.3af): This standard provides up to 15.4 watts at the
switch port to support powered devices that require up to 12.95 watts.
PoE+ (IEEE 802.3at): This standard provides up to 30.0 watts at
the switch port to support powered devices that require up to 25.5 watts.
27
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Chapter : Chapter 1: Overview
Powered device
classes
ABLE 2. IEEE POWERED DEVICE CLASSES
T
Class
0 15.4W 0.44W to 12.95W 0.8W
1 4.0W 0.44W to 3.84W 0.2W
2 7.0W 3.84W to 6.49W 0.4W
3 15.4W 6.49W to 12.95W 0.8W
4 30.0W 12.95W to 25.5W 1.2W
Cable
requirements
Powered devices are grouped into the five classes listed in Table 2 on page 28. The classes are based on the amount of power the devices require. The GS970M Series PoE switch
Maximum power output
m a switch port
fro
Cable requirements for ports operating at 10 or 100Mbps are in Table 3.
Cable requirements for ports operating at 1000Mbps are in Table 4.
es support all five classes.
PD power range Margin of cable loss
ABLE 3. TWISTED PAIR CABLE REQUIREMENTS FOR THE 10BASE-T AND 100BASE-TX PORTS AT 10
T
OR 100MBPS
10Mbps 100Mbps
Cable type
Cat 3: Standard TIA/EIA 568-B-compliant
tegory 3 shielded or unshielded cabling
Ca with 100 ohm impedance and a frequency of 16 MHz
Cat 5: Standard TIA/EIA 568-A-compliant
tegory 5 shielded or unshielded cabling
Ca with 100 ohm impedance and a frequency of 100 MHz
Cat 5e: Standard TIA/EIA 568-B-compliant
hanced Category 5 (Cat 5e) shielded or
En unshielded cabling with 100 ohm impedance and a frequency of 100 MHz
Cat 6 or 6a: Standard TIA/EIA 568-B­compliant Categ
ory 6 or 6a shielded cabling
Non PoE
Yes Yes No Yes Yes No
Yes Yes No Yes Yes No
Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes
PoE PoE+
Non PoE
PoE PoE+
28
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GS9790M Series Switch Installation Guide
TABLE 4. TWISTED PAIR CABLE REQUIREMENTS FOR THE 10/1000BASE-T
AND 100BASE-TX PORTS AT 1000MBPS
1000Mbps
Cable type
Non-PoE PoE PoE+
Cat 3: Standard TIA/EIA 568-B­compliant or unshielded cabling with 100
Category 3 shielded
No No No ohm impedance and a frequency of 16 MHz
Cat 5: Standard TIA/EIA 568-A­compliant or unshielded cabling with 100
Category 5 shielded
Yes Yes No ohm impedance and a frequency of 100 MHz
Cat 5e: Standard TIA/EIA 568-
mpliant Enhanced
B-co Category 5 (Cat 5e) shielded or unshielded cabling with 100
Yes Yes Yes
ohm impedance and a frequency of 100 MHz
Cat 6 or 6a: Standard TIA/EIA 568
-B-compliant Category 6 or
Yes Yes Yes 6a shielded cabling
Power budget The GS970M Series PoE switches have the following power budgets:
GS970M/10PS: 124 watts
GS970M/18PS: 247 watts
GS970M/28PS: 370 watts
This is the maximum amount of power the switches can provide at on time to the powered devices.
e
The power requirements of the PoE devices determine the maximum number
of devices the switch can support at one time. So long as the total power requirements of the powered devices is less than the power budget of the switch, the switch can supply power to all the devices. But if the total power requirements exceed the power budget, the switch denies power to one or more ports using a mechanism referred to as port prioritization.
29
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Chapter : Chapter 1: Overview
To determine whether the power requirements of the PoE devices you plan to connect to the switch exceed its power budget, refer to their documentation for their power requirements and add the requirements together. The switch should be able to power all of the devices simultaneously as long as the total is below its power budget. If the total exceeds the available power budget, you should consider reducing the number of PoE devices so that all of the devices receive power. Otherwise, the switch powers a subset of the devices, based on port prioritization.
The switch can handle different power requirements on different ports. This enables you to connect different classes of PoE equipment to the ports on the switch.
Port
prioritization
If the power requirements of the powered devices exceed the switch’s power budget, the switch denies power to some ports based on a system called port prioritization. You may use this mechanism to ensure that powered devices critical to the operations of your network are given preferential treatment by the switch in the distribution of power should the demands of the devices exceed the available capacity.
There are three priority levels:
Critical
High
Low
Ports set to the Critical level, the highest priority level, are guaranteed power before any of the ports assigned to the other two priority levels. Ports assigned to the other priority levels receive power only if all the Critical ports are receiving power. Ports that are connected to your most critical powered devices should be assigned to this level. If there is not enough power to support all the ports set to the Critical priority level, power is provided to the ports based on port number, in ascending order.
The High level is the second highest level. Ports set to this level receive power only if all the ports set to the Critical level are already receiving power. If there is not enough power to support all of the ports set to the High priority level, power is provided to the ports based on port number, in ascending order.
30
The lowest priority level is Low. This is the default setting. Ports set to this level only receive power if all of the ports assigned to the other two levels are already receiving power. As with the other levels, if there is not enough power to support all of the ports set to the Low priority level, power is provided to the ports based on port number, in ascending order.
Power allocation is dynamic. If the switch’s power budget is at its maximum, ports may stop supplying power to powered devices if new powered devices, connected to ports with higher priorities, become active.
Page 41
GS9790M Series Switch Installation Guide
Wiring
implementation
The IEEE 802.3af standard defines two methods for the delivery of DC power over twisted pair cable by a PSE, such as the switch, to PDs. These methods, known as modes A and B, identify the wires within the cable that carry the DC power from the PSE to a PD.
Twisted pair cabling typically consists of eight wires. With 10BASE-T and 100BASE-TX devices, the wires connected to pins 1, 2, 3, and 6 on the RJ- 45 connectors carry the network traffic while the wires connected to pins 4, 5, 7, and 8 are unused. With 1000BASE-T devices, all eight wires are used to carry network data.
It takes four wires to deliver DC power to a PD. With Mode A, the power is delivered on pins 1, 2, 3, and 6. These are the same pins in 10BASE-T and 100BASE-TX devices that carry the network data. With mode B, the power is provided over the spare wires.
The ports on GS970M Series PoE switches deliver the power using pins 1, 2, 3, and 6, which corresponds to mode A in the IEEE 802.3af standard. Powered devices that comply with the IEEE 802.3af standard are required to support both power delivery methods. Legacy devices that do not comply with the standard will work with the switch if they are powered on pins 1, 2, 3, and 6.
31
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Chapter : Chapter 1: Overview
Note
CONSOLE
RS-232
SD
FAULT
POWER
1000 LINK ACT 10/100 LINK ACT
2
1
Power LED
LEDs
This section describes the four types of LEDs on GS970M Series switches:
“POWER and FAULT LEDs” on page 32
“10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and PoE
status LED” on page 34
“10/1000BASE-T/100BASE-TX Link/Activity/Speed LED and
Duplex/Collision LED” on page 36
“SFP LEDs” on page 38
“SD card LED” on page 39
POWER and
FAULT LEDs
The POWER LED reports the status of AC power and is located on the front panel of the of the switches beside the console port. See
Figure 17.
All port LEDs are OFF when the switch is operating in the low power mode. To toggle on the LEDs, use the ecofriendly button. See “ecofriendly button” on page 41 for more information.
FIGURE 17. POWER LED ON A GS970M SERIES SWITCH
32
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GS9790M Series Switch Installation Guide
CONSOLE
RS-232
SD
FAULT
POWER
1000 LINK ACT 10/100 LINK ACT
2
1
Fault LED
Table 5 describes the POWER LED for GS970M Series switches.
T
ABLE 5. POWER LED FUNCTIONAL DESCRIPTIONS
LED State
Description
Indicates either the switch is no
Off
POWER
Steady
green
power or the AC input power is operating outside the normal range
The switch is receiving AC input power and is
rating normally
ope
Figure 18 shows the location of the FAULT LED.
F
IGURE 18. FAULT LED ON A GS970M SERIES SWITCH
t receiving AC
Table 6 describes the functions of the FAULT LED.
ABLE 6. FAULT LED FUNCTIONAL DESCRIPTIONS
T
LED State Description
Off
The switch is receiving AC input power and is o
perating normally
Red
FAULT
flashing
ce
on
Red
lashing six
f
times
Indicates fan failure
Indicates the switch’s temperature has
xceeded the threshold
e
33
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Chapter : Chapter 1: Overview
Note
ACT 10/100 LINK ACT PD ON PD ERR MAX C
24 68
1357
10/1000BASE-T/
100BASE-TX
Link/Activity/
Speed LED and
PoE status LED
On GS970M/10PS, GS970M/18PS and GS970M/28PS switches, the Link/ Activity/Speed and PoE LEDs provide information about the 10/ 1000BASE-T and the 100BASE-TX ports.
GS970M Series PoE switches indicate Link/Activity/Speed and PoE status with two LEDs for each port (
the left LED corresponds to Link/Activity/Speed
the right LED corresponds to PoE status
Figure 19). For each port:
All of the port LEDs are OFF when the switch is operating in the low power mode. To toggle on the LEDs, use the ecofriendly button. See “ecofriendly button” on page 41 for more information.
FIGURE 19. LINK/ACTIVITY/SPEED AND POE LEDS
PoE status LED
Link/activity/speed LED
10/100/1000Mbps PoE+ ports
34
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GS9790M Series Switch Installation Guide
Table 7 describes the Link/Activity/Speed and PoE status LEDs.
ABLE 7. LINK/ACTIVITY/SPEED AND POE LED DESCRIPTIONS
T
LED State Description
The port has not established a link with a
Off
etwork device, or the ecofriendly feature
n is enabled
Link/Activity/
peed
S
(LEFT LED)
PoE
(RIGHT LED)
Flashing
green
Steady
green
Flashing
amber
Steady
amber
Off
Steady
green
Flashing
amber
Steady
amber
Rx or Tx activities at 1000M
The port has established a link with a
etwork device and is active (1000M)
n
Rx or Tx activities at 10/100M
The port has established a link with a
etwork device and is active (10/100M)
n
No link, no power output, or ecofriendly fe
ature is enabled
PD is on
PD maximum current
PD error
35
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Chapter : Chapter 1: Overview
Note
10/100/1000 Mbps ports
Link/activity/speed LED
Duplex Mode LED
10/1000BASE-T/
100BASE-TX
Link/Activity/
Speed LED and
Duplex/Collision
LED
On GS970M/10, GS970M/18 and GS970M/28 switches, the Link/Activity/ Speed and Duplex/Collision LEDs provide information about the 10/ 1000BASE-T and the 100BASE-TX ports.
These switches indicate Link/Activity/Speed and Duplex/Collision status with two LEDs for each port (
the left LED corresponds to Link/Activity/Speed
the right LED corresponds to Duplex/Collision status
All of the port LEDs are OFF when the switch is operating in the low power mode. To toggle on the LEDs, use the ecofriendly button. See “ecofriendly button” on page 41 for more information.
FIGURE 20. LINK/ACTIVITY/SPEED AND DUPLEX/COLLISION LEDS
Figure 20). For each port:
36
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GS9790M Series Switch Installation Guide
Table 8 describes the Link/Activity/Speed and Duplex/Collision LEDs.
ABLE 8. LINK/ACTIVITY/SPEED AND DUPLEX/COLLISION LED DESCRIPTIONS
T
LED State Description
The port has not established a link with a
Off
etwork device, or the ecofriendly feature
n is enabled
Link/Activity/
peed
S
(LEFT LED)
Duplex/
Co
llision
(RIGHT LED)
Flashing
green
Steady
green
Flashing
amber
Steady
amber
Off
Steady
green
Steady
amber
Flashing
amber
Rx or Tx activities at 1000M
The port has established a link with a
etwork device and is active (1000M)
n
Rx or Tx activities at 10/100M
The port has established a link with a
etwork device and is active (10/100M)
n
The port has not established a link with a n
etwork device, or the ecofriendly feature
is enabled
A port is operating in full duplexmode
A port is operating in half-duplex mode at 1
0 or 100 Mbps (Half-duplex mode does
not apply to 1000 Mbps operation)
Collisions are occurring on a port
perating at 10 or 100 Mbps
o
37
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Chapter : Chapter 1: Overview
Note
MAX CURRENT
SFP
9
10
SFP slots
Upper (left) SFP LED
Lower (right) SFP LED
SFP LEDs The GS970M Series switches have SFP Link/Activity LEDs on the front
panel. See
Figure 21.
The SFP Link/Activity LEDs indicate the activity status for each SFP slot. Each SFP slot has ONE uni-color LED:
The LEFT LED corresponds to the UPPER SFP port
The RIGHT LED corresponds to the LOWER SFP port
All of the port LEDs are OFF when the switch is operating in the low power mode. To toggle on the LEDs, use the ecofriendly button. See “ecofriendly button” on page 41 for more information.
FIGURE 21. SFP LINK/ACTIVITY LEDS ON A GS970M SERIES SWITCH
38
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GS9790M Series Switch Installation Guide
Note
CONSOLE
RS-232
SD
FAULT
POWER
1000 LINK ACT 10/100 LINK ACT
2
1
SD card LED
Table 9 describes the functions of the SFP Link/Activity LEDs
ABLE 9. SFP LINK/ACTIVITY LED FUNCTIONAL DESCRIPTIONS
T
LED State Description
The port on the SFP transceiver has not
Off
ablished a link with an end node, OR the
est ecofriendly feature is enabled
SFP
Flashing
en
gre
Steady
en
gre
Rx or Tx activities
The SFP transceiver has established a link with a network device
SD card LED GS970M Series switches have an SD card LED on the front panel (see
Figure 22)
All of the port LEDs are OFF when the switch is operating in the low power mode. To toggle on the LEDs, use the ecofriendly button. See “ecofriendly button” on page 41 for more information.
FIGURE 22. SD CARD SLOT LED ON A GS970M SERIES SWITCH
39
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Chapter : Chapter 1: Overview
The SD card LED indicates whether the SD card slot has a card inserted, or is reading or writing. Table 10 describes the functions of the SD card LED.
T
ABLE 10. SD CARD LED FUNCTIONAL DESCRIPTIONS
LED State Description
SD card
Off
Flashing
green
Steady
green
Flashing
amber
SD card is not inserted OR the ecofriendly
ture is enabled
fea
Writing or reading
SD card is inserted
Writing or reading error
40
Page 51
ecofriendly button
Note
SD
MAC Address Lab
ecofriendly button
GS9790M Series Switch Installation Guide
By pressing the ecofriendly button you can conserve energy.
When you press the ecofriendly button for 1 to 4 seconds, the front panel port LEDs are disabled. You may use the button to turn off the LEDs when you are not monitoring the switch. To turn the port LEDs on, press the ecofriendly button for 1 to 4 seconds again. Toggling the LEDs does not affect the network operations of the switch.
FIGURE 23. ECOFRIENDLY BUTTON ON A GS970M SERIES SWITCH
The ecofriendly button does not control the POWER LED or SD card LED.
41
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Chapter : Chapter 1: Overview
Power supply
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 and a power cord retainer hook are supplied with the switch.
For the power requirements, see “Power specifications” on page 86.
42
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Fans
GS9790M Series Switch Installation Guide
The switches have internal fans as follows:
GS970M/10: no fan
GS970M/10PS, GS970M/18 and GS970M/28: one fan
GS970M/18PS and GS970M/28PS: two fans
You cannot remove or replace these fans in the field. The fan status is indicated with the FAULT LED. See
“POWER and FAULT LEDs” on
page 32 and Table 6 on page 33 for more information.
43
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Chapter : Chapter 1: Overview
44
Page 55

Chapter 2: Installation

This chapter contains the following sections:
“Reviewing safety precautions” on page 46
“Selecting a site for the switch” on page 48
“Cable specifications” on page 49
“Unpacking the switch:GS970M/10 and GS970M/10PS” on
page 50
“Unpacking the switch: GS970M/18 and GS970M/18PS” on
page 51
“Unpacking the switch: GS970M/28” on page 52
“Unpacking the switch: GS970M/28PS” on page 53
“Installing the switch on a table or a desktop” on page 54
GS9790M Series Switch Installation Guide
“Removing the feet from a switch before installing it in an
equipment rack or on a wall” on page 55
“Installing a GS970M/10 switch in an equipment rack” on page 56
“Installing a GS970M/10PS switch in an equipment rack” on
page 59
“Installing a GS970M/18, GS970M/18PS or GS970M/28 switch in
an equipment rack” on page 61
“Installing a GS970M/28PS switch in an equipment rack” on
page 63
“Installing a GS970M/10 switch on a wall” on page 65
“Installing a GS970M/18, GS970M/28 or AT-GS970M PS Series
switch on a wall” on page 67
“Cabling the switch” on page 69
“Powering on the switch” on page 71
“Starting a local management session” on page 73
“Monitoring the initialization processes” on page 75
“Installing optional SFP transceivers” on page 78
45
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Chapter : Chapter 2: Installation
Note
Warning
Warning
Warning
Warning
Caution
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.
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
Air vents must not be blocked and must have free access to the room ambient air for cooling. E6
46
Operating temperature: This product is designed for a maximum ambient temperature of 50° degrees C. E7
Page 57
GS9790M Series Switch Installation Guide
Warning
Caution
Warning
Warning
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 overcurrent 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
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 (e.g., use of power strips). E37
To reduce the risk of electric shock, the PoE ports on this product must not connect to cabling that is routed outside the building in which the device is located. E40
47
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Chapter : Chapter 2: Installation
Selecting a site for the switch
You can install a GS970M Series switch on a desktop, in a standard 19­inch equipment rack, or on a wall.
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.
If you are installing the switch on a wall, ensure that the wall is
sturdy enough to hold the switch’s weight. You may need to position the switch so that it can be screwed into the wall’s framing timber or an equivalent structural element.
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.
Do not place objects on top of the switch.
Do not expose the switch to moisture or water.
Ensure that the site is in a dust-free environment.
You should use dedicated power circuits or power conditioners to
supply reliable electrical power to the network devices.
48
Page 59
Cable specifications
Note
Table 11 contains the cable specifications for the twisted pair ports.
T
GS9790M Series Switch Installation Guide
ABLE 11. TWISTED PAIR CABLING AND DISTANCES
Speed Type of cable
Standard TIA/EIA 568-B-compliant Ca
tegory 3 or better shielded or
10 Mbps
unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.
Standard TIA/EIA 568-A-compliant Ca
tegory 5 or TIA/EIA 568-B-
100 Mbps
compliant Enhanced Category 5 (Cat 5e) shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Maximum operating
dis
tance
100 m (328 ft)
100 m (328 ft)
Standard TIA/EIA 568-A-compliant Ca
tegory 5 or TIA/EIA 568-B-
1000 Mbps
compliant Enhanced Category 5 (Cat 5e) shielded or unshielded
100 m (328 ft)
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, 100, or 1000 Mbps. A port is configured as MDI or MDIX 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.
49
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Chapter : Chapter 2: Installation
Note
1 Power cable hook
GS970M/10 or GS970M/10PS
1 Power cable (1.8m) 1 Console cable (2m)
C
O
N
SO
L E
R
S-2
3 2
SD
F
AU
LT
PO
W
ER
S
D
10
00
L
I N
K
A
C
T
1 0/
1
0
0
L I
N K
AC
T
P D
O
N
PD
E
RR
M A
X C
U R
R
E N
T
SFP
9
1
0
2
4
68
13
57
MA
C Addr
e s
s
L a
be
l
Unpacking the switch:GS970M/10 and GS970M/10PS
To unpack the switch, perform the following procedure:
1. Remove all of the components from the shipped package.
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.
2. Place the switch on a level, secure surface.
3. Verify that the shipped package includes the following items:
50
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GS9790M Series Switch Installation Guide
Note
1 Power cable hook
GS970M/18 or GS970M/18PS
1 Power cable (1.8m) 1 Console cable (2m)
M
AC
Ad
d
r es
s La
b
e l
Unpacking the switch: GS970M/18 and GS970M/18PS
To unpack the switch, perform the following procedure:
1. Remove all of the components from the shipped package.
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.
2. Place the switch on a level, secure surface.
3. Verify that the shipped package includes the following items:
51
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Chapter : Chapter 2: Installation
Note
2 x Brackets 6 x Screws
1 Power cable (1.8m) 1 Console cable (2m)
GS970M/28
1 Power cable hook
Unpacking the switch: GS970M/28
To unpack the switch, perform the following procedure:
1. Remove all of the components from the shipped package.
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.
2. Place the switch on a level, secure surface.
3. Verify that the shipped package includes the following items:
52
Page 63
Unpacking the switch: GS970M/28PS
Note
2 x Brackets 6 x Screws
1 Power cable (1.8m) 1 Console cable (2m)
GS970M/28PS
1 Power cable hook
To unpack the switch, perform the following procedure:
1. Remove all of the components from the shipped package.
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.
2. Place the switch on a level, secure surface.
3. Verify that the shipped package includes the following items:
GS9790M Series Switch Installation Guide
53
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Chapter : Chapter 2: Installation
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
Installing the switch on a table or a desktop
Here are the guidelines to selecting a suitable site for desktop or table use:
The table should be level and stable and the power outlets should
be located near the switches and be easily accessible.
The site should allow for easy access to the ports on the front of
the switches, so that you can easily connect and disconnect cables, and view the port LEDs.
The site should allow for adequate air flow around the units and
through the cooling vents on the front and rear panels (the ventilation direction is from front to back, with the fan on the back panel drawing the air out of the unit).
The site should not expose the switches to moisture or water and
the site should be a dust-free environment.
The site should include dedicated power circuits or power
conditioners to supply reliable electrical power to the network devices.
The rubber feet on the base of the switches should be left on for
table or desktop installation.
If your switch does not already have rubber feet fitted, fit these as follows:
1. Turn the switch over and place it on a table.
2. Remove the rubber feet from the packaging and screw them firmly onto the base of the switch, as shown on
Figure 24 on page 54:
FIGURE 24. ATTACHING THE RUBBER FEET TO A SWITCH
3. Turn the switch over again and place it on a flat, secure surface (such as a desk or table) leaving ample space around the unit for ventilation.
4. Go to “Cabling the switch” on page 69.
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GS9790M Series Switch Installation Guide
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
Removing the feet from a switch before installing it in an equipment rack or on a wall
Before you install the switch in a 19-inch equipment rack or on a wall, you need to remove the rubber feet, if they are attached to the base of the switch. To do this, follow these steps:
1. Place the unit upside down on a level, secure surface.
2. Remove the rubber feet with a screwdriver. Figure 25 shows how to do this on a GS970M/10PS switch.
IGURE 25. REMOVING THE RUBBER FEET FROM A SWITCH
F
3. Turn the switch back over.
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Chapter : Chapter 2: Installation
Installing a GS970M/10 switch in an equipment rack
These instructions show you how to install a GS970M/10 switch in an equipment rack. The rack mount kit is AT-RKMT-J05 and can be purchased separately from your Allied Telesis dealer.
To install a GS970M/10 switch in a 19-inch equipment rack, follow these
s:
step
1. If rubber feet are attached to the base of the switch, remove them (Figure 25 on page 55).
2. First fit the rack mount handles to the brackets using the supplied M3x6mm pan
FIGURE 26. FITTING HANDLES TO RACK MOUNT BRACKETS
head screws (Figure 26).
56
3. Fit the brackets with handles to the mounting using the supplied M4x6mm countersunk screws (Figure 27).
FIGURE 27. FITTING BRACKETS TO THE MOUNTING
Page 67
GS9790M Series Switch Installation Guide
4. Next attach the cable tray brackets (Figure 28).
FIGURE 28. ATTACHING CABLE TRAY BRACKETS
5. Mount the GS970M/10 switch on the brackets (Figure 29). Screw it in with the screws from the rubber feet which you removed earlier (Figure 25 on page 55).
FIGURE 29. MOUNTING A GS970M/10 SWITCH IN THE BRACKETS
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Chapter : Chapter 2: Installation
6. Mount the GS970M/10 switch in a 19-inch equipment rack using the provided spacer bracket mounts with four equipment rack screws (Figure 30).
FIGURE 30. MOUNTING A GS970M/10 SWITCH IN THE RACK
7. Secure cables to the cable tray (Figure 31).
IGURE 31. SECURING CABLES TO THE CABLE TRAY
F
8.
58
9. Go to “Cabling the switch” on page 69
Page 69
GS9790M Series Switch Installation Guide
CONS
OL
E
RS
­2 3
2
S
D
F
A
U
L T
POW
E
R
S
D
1 0
0
0
L
INK
A
C T
1 0
/ 1
0 0
LIN
K
A CT
P D
O
N
P
D
E
R
R
M
A
X
C
U
RR
E
NT
S
FP
9
10
2
4
6
8
1
35
7
M
AC
Address
Label
Installing a GS970M/10PS switch in an equipment rack
These instructions show you how to install a GS970M/10PS switch in an equipment rack. The rack mount kit is AT-RKMT-J14 and can be purchased separately from your Allied Telesis dealer.
To install a GS970M/10PS switch in a 19-inch equipment rack, follow these steps:
1. If rubber feet are attached to the base of the switch, remove them Figure 25 on page 55).
(
2. Attach two rack mount brackets to the sides of the switch using the
eight bracket screws that come with the rack mount kit AT-RKMT-J14 (Figure 32).
F
IGURE 32. ATTACHING RACK MOUNT BRACKETS TO A GS970M/10PS
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Chapter : Chapter 2: Installation
CON
S O
LE
R S
­232
S
D
FAUL
T
P
O
W
E
R
S
D
1
0 0
0 LINK
A
C
T
1
0 / 1
0 0
L
I NK
ACT
P D O
NP
D E
R
RM
A X
CUR
R ENT
SF
P
9
1
0
2
4
68
1
3
5
7
MAC Address Label
3. Mount the GS970M/10PS switch in a 19-inch equipment rack using four equipment rack screws (supplied with the equipment rack) (Figure 33).
FIGURE 33. MOUNTING A GS970M/10PS SWITCH IN AN EQUIPMENT RACK
60
4. Go to “Cabling the switch” on page 69
Page 71
GS9790M Series Switch Installation Guide
M
AC Ad
dres
s
La
b
el
Installing a GS970M/18, GS970M/18PS or GS970M/28 switch in an equipment rack
These instructions show you how to install a GS970M/18PS, GS970M/18, or GS970M/28 switch in an equipment rack. The rack mount kit is AT-RKMT-J13 and can be purchased separately from your Allied Telesis dealer. A rack mount kit is included with your GS970M/28 switch.
To install one of these switches in a 19-inch equipment rack, follow these steps:
1. If rubber feet are attached to the base of the switch, remove them Figure 25 on page 55).
(
2. Attach two rack mount brackets to the sides of the switch using the six
bracket screws that come with the rack mount kit AT-RKMT-J13 (Figure 34).
FIGURE 34. ATTACHING RACK MOUNT BRACKETS TO THE GS970M/18, GS970M/18PS
OR GS970M/28 SWITCH
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Chapter : Chapter 2: Installation
M
AC Ad
dress
La
b
el
3. Mount the switch in a 19-inch equipment rack using four equipment rack screws (supplied with the equipment rack) (Figure 35).
FIGURE 35. MOUNTING A GS970M/18, GS970M/18PS OR GS970M/28
SWITCH IN AN EQUIPMENT RACK
62
4. Go to “Cabling the switch” on page 69
Page 73
GS9790M Series Switch Installation Guide
Installing a GS970M/28PS switch in an equipment rack
These instructions show you how to install a GS970M/28PS switch in an equipment rack. A rack mount kit is included with your GS970M/28PS switch.
To install a GS970M/28PS switch in a 19-inch equipment rack, follow these steps:
1. If rubber feet are attached to the base of the switch, remove them Figure 25 on page 55).
(
2. Attach two rack mount brackets to the sides of the switch using the six
provided bracket screws (Figure 36).
FIGURE 36. ATTACHING RACK MOUNT BRACKETS TO THE GS970M/28PS
SWITCH
M
AC Ad
dres
s
La
b
el
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Chapter : Chapter 2: Installation
3. Mount the GS970M/28PS switch in a 19-inch equipment rack using four equipment rack screws (supplied with the equipment rack) (Figure 37).
FIGURE 37. MOUNTING A GS970M/28PS SWITCH IN AN EQUIPMENT RACK
64
4. Go to “Cabling the switch” on page 69
Page 75
Installing a GS970M/10 switch on a wall
Ridges
Attached to wall
These instructions show you how to install a GS970M/10 switch on a wall. The wall mount kit is AT-BRKT-J23 and can be purchased separately from your Allied Telesis dealer.
Before you start, ensure that the wall is sturdy enough to hold the switch’s weight. You may need to position the switch so that the brackets can be screwed into the wall’s framing timber or an equivalent structural element.
To install the switch on a wall, perform the following procedure:
1. If the rubber feet are attached to the bottom of the switch, remove them with a screwdriver ( back over.
2. Determine the desired bracket position on the wall and screw the brackets to the wall with the screws included in the wall mount kit.
Figure 25 on page 55), then turn the switch
GS9790M Series Switch Installation Guide
You can install the switch with the front panel facing up (as shown in Figure 39 on the next page), left, or right (as shown in Figure 40 on the next page). Do not install the switch with the front panel facing down.
Note that the brackets are not attached to the switch, but only to the wall.
If you install the switch with the front panel facing up, the switch will rest on the edges of the bracket, as shown in Figure 38.
IGURE 38. RIDGES ON THE AT-BRKT-J23 THAT THE SWITCH RESTS ON
F
WHEN INSTALLED WITH THE FRONT PANEL FACING UP
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Chapter : Chapter 2: Installation
Bracket position, viewed from above:
Bracket position, viewed from below:
Bracket position, viewed from below:
Bracket position, viewed from above:
FIGURE 39. SECURING THE GS970M/10 SWITCH TO THE WALL WITH THE FRONT PANEL FACING UP
FIGURE 40. SECURING THE GS970M/10 SWITCH TO THE WALL WITH THE FRONT PANEL FACING RIGHT
3. Slide the switch between the brackets so that it rests against the bracket, as shown in the figures above.
66
4. Go to “Cabling the switch” on page 69.
Page 77
GS9790M Series Switch Installation Guide
Note
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK
ACT
10/100 LINK
ACT
PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
Installing a GS970M/18, GS970M/28 or AT-GS970M PS Series switch on a wall
These instructions show you how to install a GS970M/18, GS970M/28 or AT-GS970M PS Series switch on a wall. The wall mount kit is AT-BRKT­J24 and can be purchased separately from your Allied Telesis dealer.
This section shows a GS970M/10PS switch as an example.
Before you start, ensure that the wall is sturdy enough to hold the switch’s weight. You may need to position the switch so that it can be screwed into the wall’s framing timber or an equivalent structural element.
To install the switch on a wall, perform the following procedure:
1. If the rubber feet are attached to the bottom of the switch, remove them with a screwdriver ( back over.
Figure 25 on page 55), then turn the switch
2. Orient the brackets against the sides of the switch as shown in Figure 41, and secure them to the unit with the 16 brackets screws included in the wall mount kit.
FIGURE 41. ATTACHING WALL MOUNT BRACKETS TO THE SIDE OF THE SWITCH
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Chapter : Chapter 2: Installation
CONSOLE
RS-232
SD
FAULT
POWER
SD
1000 LINK ACT 10/100 LINK ACT PD ON PD ERR MAX CURRENT
SFP
9
10
24 68
1357
MAC Address Label
3. While another person holds the switch at the wall location, secure it to the wall using the eight wall mounting screws (
Figure 42).
FIGURE 42. SECURING THE SWITCH TO THE WALL
68
4. Go to “Cabling the switch” on page 69.
Page 79
Cabling the switch
GS9790M Series Switch Installation Guide
Observe the following guidelines when connecting twisted pair and fiber optic 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/MDIX, 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. Otherwise, a network loop will result which can adversely affect network performance.
The default setting for the wiring configurations of the ports is auto-
MDI/MDIX. The default setting is appropriate for switch ports that are connected to 10BASE-T and 100BASE-TX network devices that also support auto-MDI/MDIX.
The default auto-MDI/MDIX setting is not appropriate for switch
ports that are connected to 10BASE-T and 100BASE-TX network devices that do not support auto-MDI/MDIX and have a fixed wiring configuration. For switch ports connected to those types of network devices, you should disable auto-MDI/MDIX and set the wiring configurations manually.
The appropriate MDI/MDIX setting for a switch port connected to a
10BASE-T and 100BASE-TX network device with a fixed wiring configuration depends on the setting of the network device and whether the switch and network device are connected with straight­through or crossover cable. If you are using straight-through twisted pair cable, the wiring configurations of a port on the switch and a port on a network device must be opposite each other, such that one port uses MDI and the other MDIX. For example, if a network device has a fixed wiring configuration of MDI, you must disable auto-MDI/MDIX on the corresponding switch port and manually set it to MDIX. If you are using crossover twisted pair cable, the wiring configurations of a port on the switch and a port on a network device must be the same.
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The default speed setting for the ports is Auto-Negotiation. This
setting is appropriate for ports connected to network devices that also support Auto-Negotiation.
The default speed setting of Auto-Negotiation is not appropriate for
ports connected to 10BASE-T and 100BASE-TX network devices that do not support Auto-Negotiation and have fixed speeds. For those switch ports, you should disable Auto-Negotiation and set the port’s speed manually to match the speeds of the network devices.
The 10/1000BASE-T and 100BASE-TX ports must be set to Auto-
Negotiation, the default setting, to operate at 1000Mbps.
The default duplex mode setting for the ports is Auto-Negotiation.
This setting is appropriate for ports connected to network devices that also support Auto-Negotiation for duplex modes.
The default duplex mode setting for the ports is Auto-Negotiation.
This setting is appropriate for ports connected to network devices that also support Auto-Negotiation for duplex modes.
The default duplex mode setting of Auto-Negotiation is not
appropriate for ports connected to network devices that do not support Auto-Negotiation and have a fixed duplex mode. You should disable Auto-Negotiation on those ports and set their duplex modes manually to avoid the possibility of duplex mode mismatches. A switch port using Auto-Negotiation defaults to half­duplex if it detects that the end node is not using Auto-Negotiation, which can result in a mismatch if the end node is operating at a fixed duplex mode of full-duplex.
Do not attach cables to ports of static or LACP port trunks until
after you have configured the trunks on the switch. Otherwise, the ports will form network loops that can adversely affect network performance.
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Powering on the switch
Power cable hook
Power cable hook mount
Power cable
To power on the switch, perform the following procedure:
1. Lift the power cable hook, as shown in Figure 43, on the back of the switch.
FIGURE 43. LIFTING THE AC POWER CABLE HOOK ON A GS970M SERIES
WITCH
S
GS9790M Series Switch Installation Guide
2. Plug the power cord into the AC power connector, as shown in Figure 44, on the back of the switch.
FIGURE 44. PLUGGING IN THE AC POWER CORD ON A GS970M SERIES
WITCH
S
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Chapter : Chapter 2: Installation
Warning
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
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, “Chapter 3: Troubleshooting” on page 81.
The switch is now powered on and ready for network operations.
The switches are shipped with the management software pre-installed. The software provides a command line interface and a GUI (Graphical User Interface) for in-band, over-the-network management.
For full product documentation, see our online documentation Library. For AlliedWare Plus products, the Library includes the following documents:
Feature Overview and Configuration Guides - find these by clicking
here and searching for the feature name.
Datasheet - find this by clicking here and searching for GS970M.
Command References - find these by clicking here and searching for
GS970M.
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Starting a local management session
This procedure requires a terminal or a terminal emulator program and the management cable that comes with the switch. To start a local management session on the switch, perform the following procedure:
1. Connect the RJ45 connector on the management cable to the console port on the front panel of the switch, as shown below.
FIGURE 45. CONNECTING THE MANAGEMENT CABLE TO THE CONSOLE PORT OF
A GS970M SERIES SWITCH
MAC Ad
dres
S
GS9790M Series Switch Installation Guide
135
C
ONS
OL
s L
a
bel
D
E
S
D
FAUL
T
1
000 LI
POWER
N
K
2
A
C
T
10/100 LIN
46
K
A
C
T
R
S
-23
2
2. Connect the other end of the cable to an RS-232 port on a terminal or PC with a terminal emulator program.
3. Configure the terminal or terminal emulator program as follows:
Baud rate: 9600 bps (The baud rate of the Console Port is
adjustable from 1200 to 115200 bps. The default is 9600 bps.)
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
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Chapter : Chapter 2: Installation
Note
The port settings are for a DEC VT100 or ANSI terminal, or an equivalent terminal emulator program.
4. If you have not already done so, power up the switch as described in the previous steps.
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Monitoring the initialization processes
Verifying release... OK Booting... Starting base/first... [ OK ] Mounting virtual filesystems... [ OK ]
______________ ____ /\ \ / /______\ / \ \_ __/ /| ______ | / \ | | / | ______ | / \ \ / / \ ____ / /______/\____\ \/ /____________/
Allied Telesis Inc. AlliedWare Plus (TM) v0.0.0 Current release filename:GS970-5.4.7-01.rel Original release filename: GS970-5.4.7-01.rel Built: Mon Mar 14 12:15:15 NZDT 2017 Mounting static filesystems... [ OK ] Checking flash filesystem... [ OK ] Mounting flash filesystem... [ OK ] Checking for last gasp debug output... [ OK ] Checking NVS filesystem... [ OK ] Formatting NVS... [ OK ] Mounting NVS filesystem (second attempt)... [ OK ] Starting base/dbus... [ OK ] Starting base/syslog... [ OK ] Starting base/loopback... [ OK ] Starting base/poe_done... [ OK ] Starting base/sysctl... [ OK ]
It takes about thirty seconds for the switch to initialize its management software programs and features, and load the default configuration.
You may also monitor the bootup sequence by connecting a terminal or computer that has a terminal emulator program, to the console port on the master switch. You will see the messages from 48 on page 77.
FIGURE 46. SWITCH INITIALIZATION MESSAGES
GS9790M Series Switch Installation Guide
Figure 46 below to Figure
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Starting base/portmapper... [ OK ] Received event syslog.done Starting base/reboot-stability... [ OK ] Checking system reboot stability... [ OK ] Starting base/cron... [ OK ] Starting base/appmond... [ OK ] Starting hardware/openhpi... [ OK ] Starting hardware/timeout... [ OK ] Starting base/inet... [ OK ] Starting base/modules... [ OK ] Received event modules.done Received event board.inserted Starting network/poefw... [ OK ] Received event poefw.done Received event hardware.done Starting network/startup... [ OK ] Starting base/external-media... [ OK ] Received event network.enabled
Initializing HA processes: cntrd, hostd, hsl, nsm, sflowd, atmfd, auth epsr, imi, lacp, lldpd, loopprot, mstp, rmon udldd
Received event network.initialized Received event standalone
Assigning Active Workload to HA processes: hsl, lacpd, loopprotd, nsm, rmond, authd, epsrd lldpd, mstpd, sflowd, imi
Received event network.activated
Loading default configuration Warning: flash:/default.cfg does not exist, loading factory defaults. ...
done!
Chapter : Chapter 2: Installation
FIGURE 47. SWITCH INITIALIZATION MESSAGES (CONTINUED)
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GS9790M Series Switch Installation Guide
Received event network.configured
awplus login:
FIGURE 48. SWITCH INITIALIZATION MESSAGES (CONTINUED)
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Chapter : Chapter 2: Installation
Note
Note
Warning
Installing optional 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, 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 49.
FIGURE 49. REMOVING THE DUST PLUG FROM AN SFP SLOT
S
FP
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GS9790M Series Switch Installation Guide
SFP
S
FP
SFP Transceiver
Handle
3. Position the SFP transceiver with the label facing up.
4. Gently slide the transceiver into the SFP slot until it clicks into place as shown in Figure 50.
FIGURE 50. INSERTING AN SFP TRANSCEIVER INTO AN SFP SLOT
5. Verify that the handle on the transceiver is in the upright position, as shown in
Figure 51. This secures the transceiver and prevents it from
being dislodged from the slot.
FIGURE 51. POSITIONING THE SFP HANDLE IN THE UPRIGHT POSITION
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Chapter : Chapter 2: Installation
Note
Note
S
FP
6. Eject SFP transceivers, as shown in Figure 52. First lower the SFP transceiver handle, then gently remove the SFP transceiver.
FIGURE 52. EJECTING AN SFP TRANSCEIVER AFTER LOWERING THE SFP
HANDLE TO THE DOWNWARDS POSITION
7. Repeat steps 2 through 6 to install an additional SFP transceiver.
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 transceiver can lead to premature failure.
For information on the cable specifications of the SFP, consult the documentation shipped with the SFP.
8. Go to “Cabling the switch” on page 69.
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Chapter 3: Troubleshooting

Note
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.
GS9790M Series Switch Installation Guide
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: All of the port LEDs are off even though the ports are
connected to active network devices.
Solution: The switch is probably operating in low power mode. To toggle
on the LEDs, press the ecofriendly button on the front panel for 1 to 4 seconds.
Problem 3: A twisted pair port on the switch is connected to a network
device but the port’s Link/Activity/Speed 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 media converter 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,
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Chapter : Chapter 3: Troubleshooting
Note
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).
Verify that you are using the appropriate category of twisted pair
cable. Cable requirements can be found in Table 1, Table 3 and Table 4.
A 1000BASE connection may require five to ten seconds to establish a link.
Problem 4: The Link/Activity/Speed 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 media converter 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).
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GS9790M Series Switch Installation Guide
Problem 5: The switch functions intermittently.
Solutions: Check the system hardware status through the management
software:
Use the SHOW SYSTEM ENVIRONMENT command in the
Privileged Exec mode to verify that the input voltage from the power source to the switch is stable and within the approved operating range. The unit will shut down if the input voltage fluctuates above or below the approved operating range.
Use the SHOW SYSTEM ENVIRONMENT command in the
Privileged Exec mode to verify that the fan is operating correctly.
Verify that the location of the switch allows for adequate airflow.
The unit will shut down if it is in danger of overheating.
Problem 6: A port on the GS970M/10PS, GS970M/18PS, or
GS970M/28PS switch is not providing power to a PoE device.
Solutions: Check the following:
Review the PD’s documentation to confirm that the device supports
Mode A of the IEEE 802.3at standard. Mode A is one of two modes that define the connector pins that deliver the power from the port in the switch to the powered device. In Mode A, the power is carried on pins 1, 2, 3, and 6 on the RJ-45 port, the same pins that carry the network traffic. The second mode, Mode B, defines pins 4, 5, 7, and 8 as the power carriers. The GS970M Series switches do not support Mode B. Most powered devices are designed to accept power by either mode, but some legacy devices may only support one mode. This can be verified by reviewing the device’s documentation or data sheet. Legacy devices that only support Mode B will not work with the switches.
Check that the device’s power requirements do not exceed 30 W.
This can be verified by reviewing the device’s documentation or data sheet.
Verify that you are using the appropriate category of twisted-pair
cable by referring to Table 3 and Table 4.
Use the management software on the switch to determine whether
PoE is enabled on the port. The default setting for PoE is enabled.
Use the management software on the switch to determine whether
the PoE power setting for the port has been reduced to a value below the power requirements of the device.
Try connecting the device to a different port on the switch.
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Chapter : Chapter 3: Troubleshooting
Problem 7: 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.
Problem 8: A port’s Link/Activity/Speed LED is blinking.
Solutions: The link between the port and the network device is
intermittent. Try the following:
Connect another network device with a different cable to the port. If
the Link LED remains steady on, then the problem is with the original cable or the network device.
If the problem is with an SFP transceiver, check that the
transceiver is fully inserted in the slot.
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GS9790M Series Switch Installation Guide

Appendix A: Technical Specifications

This appendix describes the technical specifications of the GS970M Series switches.
Physical specifications
Dimensions
T
ABLE 12. CHASSIS DIMENSIONS
Model W x D x H mm (in)
Weight
GS970M/10
GS970M/10PS
GS970M/18
GS970M/18PS
GS970M/28
GS970M/28PS
ABLE 13. CHASSIS WEIGHT
T
Model Weight
GS970M/10 760g (1.68 lb)
263 mm x 179 mm x 38 mm
35 in x 7.05 in x 1.50 in)
(10.
210 mm x 275mm x 42.5 mm (8.2
7 in x 10.83 in x 1.67 in)
341 mm x 231mm x 44mm
42 in x 9.10 in x 1.73 in)
(13.
341 mm x 231mm x 44mm
42 in x 9.10 in x 1.73 in)
(13.
341 mm x 231mm x 44mm (13.
42 in x 9.10 in x 1.73 in)
440 mm x 290 mm x 44 mm
32 in x 11.42 in x 1.73 in)
(17.
GS970M/10PS 2.1 kg (4.63 lb)
GS970M/18 2.4 kg (5.29 lb)
GS970M/18PS 3.0 kg (6.61 lb)
GS970M/28 2.4 kg (5.29 lb)
GS970M/28PS 4.7 kg (10.4 lb)
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Appendix : Appendix A: Technical Specifications
Environmental specifications
TABLE 14. ENVIRONMENTAL SPECIFICATIONS
Operating temperature 0° C to +50° C (32° F to 122° F)
Storage temperature -20° C to 70° C (-4° F to 158° F)
Operating humidity < 80% non-condensing
Storage humidity < 95% non-condensing
Operating altitude range Up to 2,000 m (6,651 ft)
Power specifications
ABLE 15. INPUT SUPPLY VOLTAGE
T
Model Input supply voltage
GS970M/10
100-240 VAC, 50 - 60 Hz, 0.40A maximum
GS970M/18
GS970M/28 100-240 VAC, 50 - 60 Hz, 0.60A maximum
GS970M/10PS
100-240 VAC, 50 - 60 Hz, 2.4A maximum
GS970M/18PS
GS970M/28PS 100-240 VAC, 50 - 60 Hz, 6.4A maximum
ABLE 16. POWER SPECIFICATIONS
T
Model Power budget
GS970M/10 n/a 16 W
GS970M/18 n/a 18 W
Maximum power
consum
ption
86
GS970M/28 n/a 26 W
GS970M/10PS 124 W 161 W
GS970M/18PS 247 W 296 W
GS970M/28PS 370 W 459 W
Page 97
Electrical safety and electromagnetic certifications
TABLE 17. SAFETY AND ELECTROMAGNETIC EMISSIONS CERTIFICATIONS
EMC EN 55022 Class A
EN 55024 EN 61000-3-2 EN 61000-3-3 EN 62311 FCC Part 15 (CFR 47) Class A VCCI Class A CISPR 22 Class A ICES-003
GS9790M Series Switch Installation Guide
Environmental compliance
Electrical safety EN 60950-1 (edition 2)
Laser safety EN 60825
Regulatory Complia
nce
RoHS WEEE
IEC 60950-1 (edition 2) UL 60950-1 (edition 2)
RCM CE C-UL-US UL-EU
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Appendix : Appendix A: Technical Specifications
Connectors and port pinouts
This section lists the connectors and connector pinouts.
Figure 53 illustrates the pin layout for an RJ45 connector and port.
F
IGURE 53. RJ45 CONNECTOR AND PORT PIN LAYOUT
Table 18 lists the RJ45 pin signals when a twisted pair port is operating in the MDI configuration.
T
ABLE 18. MDI PIN SIGNALS (10BASE-T OR 100BASE-TX)
Pin Signal
1 TX+
2 TX-
3 RX+
6 RX-
Table 19 lists the RJ45 port pin signals when a
twisted pair port is
operating in the MDIX configuration.
T
ABLE 19. MDIX PIN SIGNALS (10BASE-T OR 100BASE-TX)
Pin Signal
1 RX+
2 RX-
3 TX+
88
6 TX-
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GS9790M Series Switch Installation Guide
Table 20 lists the RJ45 connector pins and their signals when a 1000BASE-T port is operating at 1000Mbps.
T
ABLE 20. RJ-45 1000BASE-T CONNECTOR PINOUTS
Pin Pair Signal
1 1 TX and RX+
2 1 TX and RX-
3 2 TX and RX+
4 3 TX and RX+
5 3 TX and RX-
6 2 TX and RX-
7 4 TX and RX+
8 4 TX and RX-
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Appendix : Appendix A: Technical Specifications
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