Extreme Networks ERS 4950GTS, ERS 4926GTS, ERS 4950GTS-PWR+, ERS 4926GTS-PWR+ operation manual

Installing Ethernet Routing Switch 4900
Series

Release 7.6

9035402

May 2018

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Contents

Chapter 1: Preface....................................................................................................................  6

Purpose.................................................................................................................................. 6

Training..................................................................................................................................  6

Providing Feedback to Us........................................................................................................  6

Getting Help............................................................................................................................ 7

Extreme Networks Documentation............................................................................................ 7

Subscribing to Service Notifications..........................................................................................  8

Chapter 2: New in this document............................................................................................ 9

Chapter 3: Preinstallation checklist...................................................................................... 10

Chapter 4: Installation preparation.......................................................................................  12

Ethernet Routing Switch 4900 Series models..........................................................................  12

Common hardware features.............................................................................................  13

Universal Serial Bus ports................................................................................................  14

Electrostatic discharge prevention..........................................................................................  15

Technical specifications.........................................................................................................  16

Power specifications........................................................................................................ 17

MTBF values................................................................................................................... 18

Power Supply Cords........................................................................................................ 19

Verifying the package contents............................................................................................... 21

Optional rack-mounting equipment.................................................................................... 22

Power Supply Unit specifications......................................................................................  23

Connecting switch to AC power..............................................................................................  23

Chapter 5: Switch installation................................................................................................ 24

Installing the switch in an equipment rack................................................................................ 24

Installing optional four-post rack-mount brackets...................................................................... 28

Installing the secondary power supply..................................................................................... 32

Connecting a transceiver to the switch or switch stack.............................................................. 33

Installing SFP transceivers............................................................................................... 33

Removing of SFP transceivers.........................................................................................  34

Supported optical devices ...............................................................................................  35

Cable requirements...............................................................................................................  37

Console port adapters ..................................................................................................... 37

Stacking...............................................................................................................................  38

Connecting switches in a stack......................................................................................... 41

Stack configurations........................................................................................................  42

Replacing or adding a stack unit.......................................................................................  45

Removing a stack unit.....................................................................................................  45

Checking Light Emitting Diode on the switch............................................................................ 45

Switch LED state indicators.............................................................................................. 46

May 2018 Installing Ethernet Routing Switch 4900 Series 4

Contents

Port LED state indicators.................................................................................................  47

Chapter 6: Installation reference........................................................................................... 49

Console port pin assignments................................................................................................  49

RJ-45 connector pin assignments for PoE switches.................................................................  49

Chapter 7: Translations of safety messages........................................................................ 51

Safety messages................................................................................................................... 51

May 2018 Installing Ethernet Routing Switch 4900 Series 5

Chapter 1: Preface

Purpose

This document provides the information and procedures required to install the hardware, software,
cabling, and power for the Extreme Networks Ethernet Routing Switch 4900 Series.

Unless otherwise indicated, this information applies to:

• ERS 4950GTS

• ERS 4926GTS

• ERS 4950GTS-PWR+

• ERS 4926GTS-PWR+

Training

Ongoing product training is available. For more information or to register, you can access the Web
site at www.extremenetworks.com/education/.

Providing Feedback to Us

We are always striving to improve our documentation and help you work better, so we want to hear
from you! We welcome all feedback but especially want to know about:

• Content errors or confusing or conflicting information.

• Ideas for improvements to our documentation so you can find the information you need faster.

• Broken links or usability issues.

If you would like to provide feedback to the Extreme Networks Information Development team about
this document, please contact us using our short
directly at [e-mail]

online feedback form. You can also email us

May 2018 Installing Ethernet Routing Switch 4900 Series 6

Getting Help

If you require assistance, contact Extreme Networks using one of the following methods:

• GTAC (Global Technical Assistance Center) for Immediate Support

- Phone: [phone] (toll-free in U.S. and Canada) or [phone]. For the support
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Getting Help

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or model number in the subject line.

GTAC Knowledge – Get on-demand and tested resolutions from the GTAC Knowledgebase, or

•
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Support Portal – Manage cases, downloads, service contracts, product licensing, and training

•
and certifications.

Before contacting Extreme Networks for technical support, have the following information ready:

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Networks products

• A description of the failure

• A description of any action(s) already taken to resolve the problem

• A description of your network environment (such as layout, cable type, other relevant
environmental information)

• Network load at the time of trouble (if known)

• The device history (for example, if you have returned the device before, or if this is a recurring
problem)

[e-mail]. To expedite your message, enter the product name

• Any related RMA (Return Material Authorization) numbers

Extreme Networks Documentation

To find Extreme Networks product guides, visit our documentation pages at:

Current Product Documentation www.extremenetworks.com/documentation/

Archived Documentation (for previous

versions and legacy products)

Release Notes www.extremenetworks.com/support/release-notes

Open Source Declarations

Some software files have been licensed under certain open source licenses. More information is
available at:

May 2018 Installing Ethernet Routing Switch 4900 Series 7

www.extremenetworks.com/support/policies/software-licensing.

www.extremenetworks.com/support/documentation­archives/

Preface

Subscribing to Service Notifications

Subscribe to receive an email notification for product and software release announcements,
Vulnerability Notices, and Service Notifications.

About this task

You can modify your product selections at any time.

Procedure

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May 2018 Installing Ethernet Routing Switch 4900 Series 8

Chapter 2: New in this document

There are no feature changes in this release.

May 2018 Installing Ethernet Routing Switch 4900 Series 9

Chapter 3: Preinstallation checklist

Before you install the Ethernet Routing Switch 4900 Series, make sure that you complete the tasks
in the preinstallation checklist.

No. Task Description

1. Review the technical specification for the
switch. Make sure that the area where
you install the switch and where it will
operate meet the requirements.

2. Verify the power supply unit (PSU)
specifications. Optionally order a
redundant PSU to provide redundancy
and load sharing.

3. Make sure that you have the following
tools and cables:

• Phillips #2 screwdriver RJ-45 console

port cable

• ESD cable

4. Unpack the equipment. Observe ESD precautions when you

5. Verify the contents of the shipped
package.

6. Make sure that the power cord has the
correct country-specific termination.

7. Prepare the rack. Ensure that there is enough rack space

For the physical, electrical, and
environmental specifications, see

Technical specifications on page 16.

See AC power specifications on
page 17.

See Cable requirements on page 37.

unpack the equipment. See Electrostatic

discharge prevention on page 15.

See Verifying package contents on
page 21 for a description of the
components that are provided with the
switch. If any components are missing,
contact Extreme Networks support at

http://www.extremenetworks.com/
support.

See Power cord type and order codes on
page 19.

of 1.75 inches (4.45 centimeters).

Ensure that the rack is bolted to the floor
and braced if necessary.

Table continues…

May 2018 Installing Ethernet Routing Switch 4900 Series 10

No. Task Description

Ensure that the rack is grounded to the
same grounding electrode used by the
power service in the area. The ground
path must be permanent and must not
exceed 1 Ohm of resistance from the
rack to the grounding electrode.

See Installing the switch in an equipment

rack on page 24.

May 2018 Installing Ethernet Routing Switch 4900 Series 11

Chapter 4: Installation preparation

Ethernet Routing Switch 4900 Series models

This section provides information about the switches in Ethernet Routing Switch 4900 Series.

Ethernet Routing Switch 4900 Series models

The following table lists the different Ethernet Routing Switch 4900 Series models and the key
features for each switch.

Switch Model Key features Part Number

Ethernet Routing
Switch 4926GTS

• 24 ports, 10/100/1000 Base-T Ethernet
with two ports of SFP+ (10 Gbps)
interfaces

• Stackable Ethernet switch

• Non-PoE

AL4900A01-E6 (no power cord)

Ethernet Routing
Switch 4926GTS­PWR+

Ethernet Routing
Switch 4950GTS

• Supports two modular 250 W Power
Supply Units (PSU), where one PSU is
required for operation and the optional
second is redundant

24 ports 10/100/1000BaseT

Stackable Ethernet switch

PoE

1 rack unit high

Uses modular power supply units and
has two field-serviceable power supply
receptacles, which support 250 W AC
power supply modules

48 ports 10/100/1000BaseT

Stackable Ethernet switch

Non-PoE

1 rack unit high

Uses modular power supply units and
has two field-serviceable power supply

AL4900A02-E6 (no power cord)

AL4900A03-E61 (no power cord)

Table continues…

May 2018 Installing Ethernet Routing Switch 4900 Series 12

Ethernet Routing Switch 4900 Series models

Switch Model Key features Part Number

receptacles, which support 1025 W AC
power supply modules

Ethernet Routing
Switch 4950GTS­PWR+

Power cords must be ordered separately.

Depending on the switch model, a 250 W or 1025 W PSU and .5 m stacking cable is provided for all
switches.

48 ports 10/100/1000BaseT

Stackable Ethernet switch

PoE

1 rack unit high

Uses modular power supply units and
has two field-serviceable power supply
receptacles, which support 1025 W AC
power supply modules

AL4900A04-E6 (no power cord)

Common hardware features

The following hardware features are part of all switches in ERS 4900 Series:

• Standard ERS 19 inch rack mount hole pattern allowing horizontal or vertical, flush or offset,
front or rear mount options

• Front panel:

- one serial console connection

- one USB 2.1 Type A port

- status LED display panel

The following figure illustrates ERS 4900 Series front panel.

1. 10/100/1000 Ports (LEDs above the ports)

2. USB Type-A port

3. Reset push button

4. Status LEDs

5. SFP+ ports

6. Serial console port

Figure 1: Front panel

May 2018 Installing Ethernet Routing Switch 4900 Series 13

Installation preparation

• Rear panel:

- two stack connectors

- one Base Select switch

- ports

Note:

The port labeled AUX is disabled.

- power supply units

- one Kensington Lock slot located on the left side, near the back end of the chassis

The following figure illustrates ERS 4900 Series rear panel.

1. Stack up connector

2. Stack down connector

3. Ports

4. Base Select Switch

5. Power Supply Units

Figure 2: Rear panel

Universal Serial Bus ports

The switches feature a Universal Serial Bus (USB) port on the front panel. Switch administrators can
use the USB port to perform tasks, previously performed through Trivial File Transfer Protocol
(TFTP), with a USB Mass Storage Device (for example, a flash drive or thumb drive):

• download software

• generate and download the ASCII configuration file

• generate and download the binary configuration file

The storage capacity of the USB device in use limits file and system operations.

Support is available only for USB drives that comply with the Mass Storage subsection of the USB

1.1 and USB 2.0 specification. Support does not extend to third-party devices that do not comply
with these standards. Off-the-shelf drives that do not comply with these standards cannot operate
with the switch. Only FAT or FAT32 file systems are currently supported; USB drives with NTFS file
systems are not supported. Consult the documentation provided with the USB drive to ensure
compliance with these standards.

May 2018 Installing Ethernet Routing Switch 4900 Series 14

Electrostatic discharge prevention

Electrostatic discharge prevention

This module provides information and procedures for the prevention of electrostatic discharge
during the installation process.

Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment
and impair electrical circuitry. These electrostatic voltages can result from friction, including, but not
exclusive to, pulling cabling through conduits, walking across carpeted areas, and building up of
static charge in clothing. ESD damage occurs when electronic components are improperly handled
and can result in complete or intermittent failures. While networking equipment is commonly
designed and tested to withstand common mode ESD events, voltage sometimes can be
discharged to some connector pins but not others, or to some pins before others, which has the
potential to damage the networking equipment.

To protect the switch against ESD damage, take the following preventive measures before
connecting any data cables to the device:

• Always use antistatic wrist straps. Make sure the strap is adjusted to provide good skin contact.

• Ensure that work surfaces and equipment racks are properly grounded for protection against
electrostatic discharge. The common point must be connected to the building ground wire. In a
properly wired building, the nearest reliable ground is typically at the electrical outlet.

• Avoid contact between equipment and clothing. The wrist or ankle strap only protects the
equipment from ESD voltages on the body; ESD voltages on clothing can still cause damage.

• Avoid touching any connector pins.

• Do not remove the wrist or ankle strap until the installation is complete.

With new cable installations, you should use an ESD discharge cable to reduce the potential for
damage from static that can build up in cables. See the following figure.

Figure 3: ESD cable

May 2018 Installing Ethernet Routing Switch 4900 Series 15

Installation preparation

Technical specifications

The following table provides the technical specifications for the switches in this series. Ensure that
the area where you install the switch and where it operates meets these requirements.

Warning:

To avoid bodily injury from hazardous electrical shock and current, never remove the top of the
device. No user-serviceable components are inside.

Table 1: Physical specifications

Height 4.4 cm – 1RU

Width 17.32 inch (440 mm or 44 cm) - 19 inch rack

mountable

Depth 18.89 inch (480 mm or 48 cm)

Weight (switch weight with one PSU. Where, PSU
approximately weighs 1.6 kg)

• ERS4926GTS: 7.2 kg

• ERS4926GTS-PWR+: 7.9 kg

• ERS4950GTS: 7.3 kg

• ERS4950GTS-PWR+: 8.0 kg

Table 2: Environmental specifications

Operating Temperature 0° and 50° C (32° and 106° F)

Storage Temperature –40°C to 85°C (-40°F to 185°F)

Operating Humidity 0 to 95 percent non-condensing

Storage Humidity 0 to 95 percent non-condensing

Maximum Operating Altitude 3,048 m (10,000 feet) above sea level

Storage Altitude 0 to 12,192 m (0 to 40,000 feet) above sea level

Acoustic Noise At 25°C Ambient Temperature, less than 48 dBA

typical, at 50°C, less than 61 dBA.

Miscellaneous Operating Considerations • No nearby heat sources such as hot air vents or

direct sunlight

• No nearby sources of severe electromagnetic
noise

• No excessive dust

• Adequate power source within six feet; one circuit
required for each power supply (see table, AC
power specifications)

• At least 2 inches (5.08 cm) on each side of the
switch unit for ventilation

• Cables should be dressed to prevent blocking air
flow.

May 2018 Installing Ethernet Routing Switch 4900 Series 16

Power specifications

This section provides the following power specifications for the switch:

AC power specifications on page 17

•

• Typical power consumption on page 18

PoE+ budget calculations on page 18

•

The following table describes the AC power specifications.

Table 3: AC power specifications

Technical specifications

Model Number of

Power
supplies

Rated Line voltage Watts

ERS 4950GTS 1 250 W 200–240 VAC 53.14 0.30 181.31

2 250 W/PSU 200–240 VAC 58.88 0.44 200.89

1 250 W 100–110 VAC 53.67 0.51 183.12

2 250 W/PSU 100–110 VAC 59.53 0.58 203.11

ERS 4926GTS 1 250 W 200–240 VAC 39.37 0.25 134.33

2 250 W/PSU 200–240 VAC 46.23 0.40 157.73

1 250 W 100–110 VAC 39.43 0.38 134.53

2 250 W/PSU 100–110 VAC 44.35 0.46 151.32

ERS 4950GTS­PWR+

ERS 4926GTS­PWR+

1 1025 W 200–240 VAC 820.89 3.80 358.90

2 1025 W 200–240 VAC 1586.25 7.15 584.30

1 1025 W 100–110 VAC 842.10 7.75 431.95

2 1025 W 100–110 VAC 1660.07 15.15 837.88

1 1025 W 200–240 VAC 792.53 3.57 308.88

2 1025 W 200–240 VAC 816.03 3.78 342.32

1 1025 W 100–110 VAC 825.11 7.55 413.56

2 1025 W 100–110 VAC 839.64 7.73 424.24

Power supply Input power

(margined by 10%)

Amps

(Total)

Thermal
rating
(BTUs/hr
maximum)

The following table provides typical power consumption.

May 2018 Installing Ethernet Routing Switch 4900 Series 17