Huawei S6700-48-EI, S6720-30C-EI-24S-AC, S6720-54C-EI-48S-AC, S6700-EI, S6700-24-EI Hardware Description

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S6700 Series Ethernet Switches
Hardware Description
Issue 12
Date 2015-07-31
HUAWEI TECHNOLOGIES CO., LTD.
Page 2
Copyright © Huawei Technologies Co., Ltd. 2015. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang Shenzhen 518129 People's Republic of China
Website: http://e.huawei.com
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S6700 Series Ethernet Switches Hardware Description About This Document

About This Document

Intended Audience
This document provides an overall description of the S6700 hardware, helping you obtain detailed information about each chassis, card, power module, fan module, cable, and optical module.
This document is intended for:
l Network planning engineers
l Hardware installation engineers
l Commissioning engineers
l On-site maintenance engineers
l System maintenance engineers
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol Description
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal injury.
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NOTE
S6700 Series Ethernet Switches Hardware Description
Symbol Description
Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
About This Document
Calls attention to important information, best practices and tips.
NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.
Declaration
This manual is only a reference for you to configure your devices. The contents in the manual, such as web pages, command line syntax, and command outputs, are based on the device conditions in the lab. The manual provides instructions for general scenarios, but do not cover all usage scenarios of all product models. The contents in the manual may be different from your actual device situations due to the differences in software versions, models, and configuration files. The manual will not list every possible difference. You should configure your devices according to actual situations.
[ ] Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... } Optional items are grouped in braces and separated by
vertical bars. One item is selected.
[ x | y | ... ] Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }
[ x | y | ... ]
&<1-n> The parameter before the & sign can be repeated 1 to n times.
# A line starting with the # sign is comments.
*
*
Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected.
Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.
The specifications provided in this manual are tested in lab environment (for example, the tested device has been installed with a certain type of boards or only one protocol is run on the device).
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S6700 Series Ethernet Switches Hardware Description
Results may differ from the listed specifications when you attempt to obtain the maximum values with multiple functions enabled on the device.
Change History
Changes between document issues are cumulative. The latest document issue contains all changes made to previous issues.
Changes in Issue 12 (2015-07-31)
This version has the following updates:
The documentation is modified according to updates in product features.
Changes in Issue 11 (2015-07-17)
This version has the following updates:
About This Document
The documentation is modified according to updates in product features.
Changes in Issue 10 (2015-01-15)
This version has the following updates:
The following information is added:
l 1.8 Components Available in V200R005C02 Version
The following information is modified:
l 2.4.2 Appearance and Structure
l 6.8 Copper Cable
Changes in Issue 09 (2014-06-30)
This version has the following updates:
The following information is added:
l 1.7 Components Available in V200R005C01 Version
Changes in Issue 08 (2014-03-20)
This version has the following updates:
The documentation is modified according to updates in product features.
Changes in Issue 07 (2013-11-06)
This version has the following updates:
The following information is modified:
l 2.4.3 Indicator Description
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S6700 Series Ethernet Switches Hardware Description About This Document
Changes in Issue 06 (2013-09-30)
This version has the following updates:
The following information is modified:
l 2.2 Naming Conventions
l 6.8 Copper Cable
Changes in Issue 05 (2013-07-25)
This version has the following updates:
The following information is modified:
l 7 Pluggable Modules for Interfaces
Changes in Issue 04 (2013-05-30)
This version has the following updates:
The documentation is modified according to updates in V200R003C00.
Changes in Issue 03 (2013-04-20)
This version has the following updates:
The following information is modified:
l 6 Cables
Changes in Issue 02 (2013-02-08)
This version has the following updates:
The documentation is modified according to updates in product features.
Changes in Issue 01 (2012-12-08)
Initial commercial release.
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S6700 Series Ethernet Switches Hardware Description

Contents

Contents
About This Document.....................................................................................................................ii
1 Version Support for Components..............................................................................................1
1.1 Components Available in V100R006C00 Version........................................................................................................2
1.2 Components Available in V200R001C00 Version........................................................................................................2
1.3 Components Available in V200R001C01 Version........................................................................................................3
1.4 Components Available in V200R002C00 Version........................................................................................................3
1.5 Components Available in V200R003C00 Version........................................................................................................4
1.6 Components Available in V200R005C00 Version........................................................................................................5
1.7 Components Available in V200R005C01 Version........................................................................................................5
1.8 Components Available in V200R005C02 Version........................................................................................................6
1.9 Components Available in V200R008C00 Version........................................................................................................7
2 Chassis.............................................................................................................................................9
2.1 Chassis Overview.........................................................................................................................................................10
2.2 Naming Conventions....................................................................................................................................................10
2.3 Port Numbering Conventions.......................................................................................................................................11
2.4 S6700-EI.......................................................................................................................................................................12
2.4.1 Version Mapping.......................................................................................................................................................12
2.4.2 Appearance and Structure..........................................................................................................................................12
2.4.3 Indicator Description.................................................................................................................................................15
2.4.4 Port Description.........................................................................................................................................................19
2.4.5 Power Supply.............................................................................................................................................................22
2.4.6 Heat Dissipation........................................................................................................................................................23
2.4.7 Specifications.............................................................................................................................................................24
2.5 S6720-EI.......................................................................................................................................................................26
2.5.1 Version Mapping.......................................................................................................................................................26
2.5.2 Appearance and Structure..........................................................................................................................................26
2.5.3 Indicator Description.................................................................................................................................................29
2.5.4 Port Description.........................................................................................................................................................36
2.5.5 Power Supply Configuration.....................................................................................................................................37
2.5.6 Heat Dissipation........................................................................................................................................................38
2.5.7 Specifications.............................................................................................................................................................39
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Contents
3 Power Modules............................................................................................................................42
3.1 350 W DC power module.............................................................................................................................................43
3.2 500 W DC Power Module............................................................................................................................................46
3.3 600 W AC Power Module............................................................................................................................................48
3.4 500 W AC Power Module............................................................................................................................................51
4 Fan Modules.................................................................................................................................54
4.1 CX7E1FANA Fan Module...........................................................................................................................................55
4.2 FAN-060B-B Fan Module............................................................................................................................................57
5 Cards..............................................................................................................................................59
5.1 Introduction..................................................................................................................................................................60
5.1.1 Card Classification....................................................................................................................................................60
5.2 ES5D21Q04Q01 (4-Port 40 Gig QSFP+ Rear Interface Card, Used in S6720-EI Series)..........................................60
5.2.1 Introduction...............................................................................................................................................................60
5.2.2 Version Mapping.......................................................................................................................................................61
5.2.3 Functions and Features..............................................................................................................................................61
5.2.4 Indicators and Ports...................................................................................................................................................61
5.2.5 Specifications.............................................................................................................................................................63
5.2.6 Ordering Information.................................................................................................................................................63
6 Cables.............................................................................................................................................64
6.1 Ground Cable................................................................................................................................................................65
6.2 Optical Fiber.................................................................................................................................................................66
6.3 Network Cable..............................................................................................................................................................73
6.4 DC Power Cable (OT and Cord End Terminals)..........................................................................................................75
6.5 DC Power Cable (Quick-Connect Cord End Terminal)...............................................................................................77
6.6 AC Power Cable...........................................................................................................................................................79
6.7 Console Cable...............................................................................................................................................................79
6.8 Copper Cable................................................................................................................................................................81
7 Pluggable Modules for Interfaces............................................................................................84
7.1 Important Notes About Using Optical Modules Certified for Huawei Switches.........................................................85
7.1.1 How to Identify Huawei-Certified Optical Modules.................................................................................................85
7.1.2 Risks of Using Non-Huawei-Certified Optical Modules..........................................................................................85
7.2 Understanding Optical Modules...................................................................................................................................86
7.2.1 What Is an Optical Module........................................................................................................................................86
7.2.2 Types of Optical Modules.........................................................................................................................................87
7.2.3 Parameter Description...............................................................................................................................................90
7.2.4 How to View Optical Module Parameters.................................................................................................................91
7.3 Understanding Copper Modules...................................................................................................................................92
7.4 Models and Parameters.................................................................................................................................................92
7.4.1 SFP/eSFP Modules....................................................................................................................................................92
7.4.2 SFP+ Modules...........................................................................................................................................................99
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S6700 Series Ethernet Switches Hardware Description Contents
7.4.3 QSFP+ Modules......................................................................................................................................................103
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S6700 Series Ethernet Switches Hardware Description 1 Version Support for Components

1 Version Support for Components

About This Chapter
NOTE
l The availability of device models and modules described in this document will be specified in product
change notices (PCNs). For details, contact the product manager of Huawei local office.
l The figures in this document are for reference only.
1.1 Components Available in V100R006C00 Version
1.2 Components Available in V200R001C00 Version
1.3 Components Available in V200R001C01 Version
1.4 Components Available in V200R002C00 Version
1.5 Components Available in V200R003C00 Version
1.6 Components Available in V200R005C00 Version
1.7 Components Available in V200R005C01 Version
1.8 Components Available in V200R005C02 Version
1.9 Components Available in V200R008C00 Version
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S6700 Series Ethernet Switches Hardware Description
1 Version Support for Components

1.1 Components Available in V100R006C00 Version

NOTE
Components marked with * are added in V100R006C00.
Available Models
Table 1-1 S6700 switch models available in V100R006C00
Series Model Maximum Number of Service Ports
S6700-EI
S6700-24-EI
S6700-48-EI
*
*
24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
Available Power Modules
Table 1-2 S6700 power modules available in V100R006C00
Power Module Type
AC power module
Power Module Power Description
W0PSA5000 500 W AC power module

1.2 Components Available in V200R001C00 Version

Available Models
Table 1-3 S6700 switch models available in V200R001C00
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
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S6700 Series Ethernet Switches Hardware Description
Available Power Modules
Table 1-4 S6700 power modules available in V200R001C00
1 Version Support for Components
Power Module Type
AC power module
Power Module Power Description
W0PSA5000 500 W AC power module

1.3 Components Available in V200R001C01 Version

NOTE
Components marked with * are added in V200R001C01.
Available Models
Table 1-5 S6700 switch models available in V200R001C01
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
Available Power Modules
Table 1-6 S6700 power modules available in V200R001C01
Power Module Type
AC power module
DC power module
Power Module Power Description
W0PSA5000 500 W AC power module
*
LS6W2PSD0500
500 W DC power module

1.4 Components Available in V200R002C00 Version

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S6700 Series Ethernet Switches Hardware Description
Available Models
Table 1-7 S6700 switch models available in V200R002C00
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
Available Power Modules
Table 1-8 S6700 power modules available in V200R002C00
1 Version Support for Components
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
Power Module Type
AC power module
DC power module
Power Module Power Description
W0PSA5000 500 W AC power module
LS6W2PSD0500 500 W DC power module

1.5 Components Available in V200R003C00 Version

Available Models
Table 1-9 S6700 switch models available in V200R003C00
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
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S6700 Series Ethernet Switches Hardware Description
Available Power Modules
Table 1-10 S6700 power modules available in V200R003C00
1 Version Support for Components
Power Module Type
AC power module
DC power module
Power Module Power Description
W0PSA5000 500 W AC power module
LS6W2PSD0500 500 W DC power module

1.6 Components Available in V200R005C00 Version

Available Models
Table 1-11 S6700 switch models available in V200R005C00
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
Available Power Modules
Table 1-12 S6700 power modules available in V200R005C00
Power Module Type
AC power module
DC power module
Power Module Description
W0PSA5000 500 W AC power module
LS6W2PSD0500 500 W DC power module

1.7 Components Available in V200R005C01 Version

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S6700 Series Ethernet Switches Hardware Description
Available Models
Table 1-13 S6700 switch models available in V200R005C01
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
Available Power Modules
Table 1-14 S6700 power modules available in V200R005C01
1 Version Support for Components
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
Power Module Type
AC power module
DC power module
Power Module Power Description
W0PSA5000 500 W AC power module
LS6W2PSD0500 500 W DC power module

1.8 Components Available in V200R005C02 Version

Available Models
Table 1-15 S6700 switch models available in V200R005C02
Series Model Maximum Number of Service Ports
S6700-EI S6700-24-EI 24 total:
24 10GE SFP+ optical ports (10GE/GE auto-sensing)
S6700-48-EI 48 total:
48 10GE SFP+ optical ports (10GE/GE auto-sensing)
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S6700 Series Ethernet Switches Hardware Description
Available Power Modules
Table 1-16 S6700 power modules available in V200R005C02
1 Version Support for Components
Power
Power Module Description Module Type
AC power
W0PSA5000 500 W AC power module
module
DC power
LS6W2PSD0500 500 W DC power module
module

1.9 Components Available in V200R008C00 Version

NOTE
The components marked * are the new components added to V200R008C00.
Chassis
Table 1-17 S6700 switch models available in V200R008C00
Power Modules
Table 1-18 S6700 power modules available in V200R008C00
Series Model Maximum Number of Service Ports
S6720-EI S6720-30C-EI-24S-
*
AC
30 total:
24 10Gig SFP+ ports (10GE/GE auto-sensing), 2 40Gig QSFP+ ports, 4 40Gig QSFP+ ports on the rear card
S6720-54C-EI-48S-
*
AC
54 total:
48 10Gig SFP+ ports (10GE/GE auto-sensing), 2 40Gig QSFP+ ports, 4 40Gig QSFP+ ports on the rear card
Type Model Description
AC power module
DC power module
PAC-600WA-B
PDC-350WA-B
*
*
600 W AC power module
350 W DC power module
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S6700 Series Ethernet Switches Hardware Description 1 Version Support for Components
Cards
Table 1-19 S6700 cards available in V200R008C00
Type Model Description
Rear card
ES5D21Q04Q01
*
4-port 40 Gig QSFP+ interface card, used in S6720-EI series
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S6700 Series Ethernet Switches Hardware Description 2 Chassis

2 Chassis

About This Chapter
2.1 Chassis Overview
2.2 Naming Conventions
2.3 Port Numbering Conventions
2.4 S6700-EI
2.5 S6720-EI
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S6720-30C-EI-24S-AC
ABC D E F G H I
S6700 Series Ethernet Switches Hardware Description 2 Chassis

2.1 Chassis Overview

The S6700 series Ethernet switches integrate the access and transmission functions to provide reliable access/aggregation and high-quality transmission of services on enterprise networks. The switches are built on an integrated hardware platform, and the hardware system consists of the chassis, power module, fan module, extended cards, and Switch Control Unit (SCU).
The S6700 series are available in a variety of models for you to choose based on your network requirements.
The S6700 series includes the S6700-EI and S6720-EI subseries, all of which are Layer 3 switches.

2.2 Naming Conventions

Figure 2-1 shows the switch naming conventions.
Figure 2-1 Switch naming conventions
Table 2-1 explains the switch naming conventions.
Table 2-1 Switch naming convention description
IdentifierDescription
A Switch
B
l 6: 10GE downlink ports
l 5: GE downlink ports
l 3: Layer 3 switch with 100M downlink ports
l 2: Layer 2 switch with 100M downlink ports
C 7: Enterprise series switch
D Product sub-series (such as 00 or 10)
E Maximum number of ports
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S6700 Series Ethernet Switches Hardware Description
IdentifierDescription
F Uplink port type:
G Device type
H Downlink port type:
2 Chassis
l C: The product supports extended cards and its uplink ports are provided by
an extended card or are fixed 40GE ports.
NOTE
If the product name does not contain this field, the switch has no uplink port.
l LI: lightweight version
l SI: standard version
l EI: enhanced version
l HI: high-level version, which supports high-performance operation,
administration, and maintenance (OAM) and built-in real-time clock (RTC)
l 24S: 24 downlink SFP+ optical ports
l 48S: 48 downlink SFP+ optical ports
I Power supply type:
l AC: switch using alternating current power supply
NOTE
S6720-EI models that support pluggable power modules are sold with AC power modules (standard configuration), and their product names contain "-AC". However, the silkscreen or nameplate on the chassis does not contain "-AC".

2.3 Port Numbering Conventions

Physical ports are numbered in the following way:
A single switch uses slot ID/subcard ID/port sequence number to identify physical ports.
l Slot ID: indicates the slot where the switch is located. The value is 0.
l Subcard ID: indicates the ID of a subcard.
l Port sequence number: indicates the sequence number of a port on the switch.
A stacked switch uses Stack ID/subcard ID/port sequence number to identify physical ports.
l Stack ID: indicates the ID of a stacked switch. The value ranges from 0 to 8.
l Subcard ID: indicates the ID of a subcard.
l Port sequence number: indicates the sequence number of a port on the switch.
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1 3 5 7 9 11
2 4 6 8 10 12
2
1
111213
14
23
24
Quidway S6700 Series
CONSOLE
ETH
GREEN=SPEEDRED=STACK
LINK/ACT
PWR1
PWR2
SYS
MODE
STATUS STATUS
1
56 7 8 9 10
23 4
S6700 Series Ethernet Switches Hardware Description
Table 2-2 Port numbering conventions
Port Numbering Diagram Description

2.4 S6700-EI

2.4.1 Version Mapping

2 Chassis
There are two rows of service ports on the device. These ports are numbered from bottom to top and left to right, starting from 1.
For example, the port on the top left is numbered 0/0/2.
Table 2-3 lists the mapping between the S6700-EI chassis and software versions.
Table 2-3 Mapping between the S6700-EI chassis and software versions
Series Model Available Version
S6700-EI S6700-24-EI V100R006C00 to V200R005C02
S6700-48-EI V100R006C00 to V200R005C02

2.4.2 Appearance and Structure

S6700-24-EI
Figure 2-2 Appearance of the S6700-24-EI
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
1 Twenty-four 10GE SFP+ Ethernet
optical ports
Applicable modules and cables:
l GE optical module
l GE-CWDM optical module
l GE SFP copper module (applicable
in V200R001C01 and later versions)
l 10GE SFP+ optical module
l 10GE-CWDM optical module
(applicable in V200R005C00 and later versions)
l 1 m or 3 m SFP+ copper cable
l 5 m SFP+ copper cable (applicable
in V200R005C02 version)
l 10 m SFP+ copper cable (applicable
in V200R001C00 and later versions)
l 3 m, 10 m AOC cables (applicable in
V200R003C00 and later versions)
One ETH management port
2
3 One console port 4 One USB port
5 Ground screw
NOTE
It is used with a ground cable.
7 Fan module slot 2
NOTE
Available fans: CX7E1FANA Fan Module
9 Power module slot 2
NOTE
Available power modules:
l 500 W AC Power Module
l 500 W DC Power Module
6 ESD jack
NOTE
When you install or maintain a switch, wear an ESD wrist strap and insert the other end of the ESD wrist strap into this ESD jack.
8 Fan module slot 1
NOTE
Available fans: CX7E1FANA Fan Module
10 Power module slot 1
NOTE
Available power modules:
l 500 W AC Power Module
l 500 W DC Power Module
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2
1
111213
14
23
24
25
26
353637
38
47
48
Quidway S6700 Series
CONSOLE
ETH
GREEN=SPEEDRED=STACK
LINK/ACT
PWR1
PWR2
SYS
MODE
STATUS STATUS
1
56 7 8 9 10
23 4
S6700 Series Ethernet Switches Hardware Description 2 Chassis
S6700-48-EI
Figure 2-3 Appearance of the S6700-48-EI
1 Forty-eight 10GE SFP+ Ethernet
optical ports
Applicable modules and cables:
l GE optical module
l GE-CWDM optical module
l GE SFP copper module (applicable
in V200R001C01 and later versions)
l 10GE SFP+ optical module
l 10GE-CWDM optical module
(applicable in V200R005C00 and later versions)
l 1 m or 3 m SFP+ copper cable
l 5 m SFP+ copper cable (applicable
in V200R005C02 version)
l 10 m SFP+ copper cable (applicable
in V200R001C00 and later versions)
l 3 m, 10 m AOC cables (applicable in
V200R003C00 and later versions)
One ETH management port
2
3 One console port 4 One USB port
5 Ground screw
NOTE
It is used with a ground cable.
7 Fan module slot 2
NOTE
Available fans: CX7E1FANA Fan Module
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6 ESD jack
NOTE
When you install or maintain a switch, wear an ESD wrist strap and insert the other end of the ESD wrist strap into this ESD jack.
8 Fan module slot 1
NOTE
Available fans: CX7E1FANA Fan Module
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2
1
111213
14
23
24
Quidway S6700 Series
CONSOLE
ETH
GREEN=SPEEDRED=STACK
LINK/ACT
PWR1
PWR2
SYS
MODE
2
1
11
1
Quidway S6700 Series
6
CONSOLE
ETH
GREEN=SPEED RED=STACK
LINK/ACT
PWR1
PWR2
SYS
MODE
12
3
54
7
12
3
54
6
7
S6700 Series Ethernet Switches Hardware Description 2 Chassis
9 Power module slot 2
NOTE
Available power modules:
l 500 W AC Power Module
l 500 W DC Power Module

2.4.3 Indicator Description

S6700-24-EI
NOTE
Symbols and meanings of indicators on the S6700-48-EI are the same as those on the S6700-24-EI.
Figure 2-4 Indicators on the S6700-24-EI
10 Power module slot 1
NOTE
Available power modules:
l 500 W AC Power Module
l 500 W DC Power Module
Table 2-4 Description of indicators on the switch
NumberIndicator/
Color Description
Button
1 PWR1: power
supply indicator
- Off: No power module is available in power module slot 1, or the switch has only one power module but the power module does not work normally.
Green Steady on: A power module is installed in
power module slot 1 and is working normally.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
NumberIndicator/
Button
2
PWR2: power supply indicator
Color Description
Red Steady on: The switch has two power
modules installed. Any of the following situations occurs in power module slot 1:
l A power module is available in this slot
but its power switch is in the OFF position.
l A power module is available in this slot
but it is not connected to a power source.
l The power module in power module
slot 1 fails.
- Off: No power module is available in power module slot 2, or the switch has only one power module but the power module does not work normally.
Green Steady on: A power module is installed in
power module slot 2 and is working normally.
Red Steady on: The switch has two power
modules installed. Any of the following situations occurs in power module slot 2:
l A power module is available in this slot
but its power switch is in the OFF position.
l A power module is available in this slot
but it is not connected to a power source.
l The power module in power module
slot 2 fails.
3
SYS: system
- Off: The system is not running.
status indicator
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
NumberIndicator/
Button
Color Description
Green Indicator states and meaning in V100R006
version:
l Steady on: The system is not operating
properly or is starting.
l Slow blinking: The system is operating
properly.
l Fast blinking: The system is copying
the system software and configuration file from a USB flash drive.
Indicator states and meaning in V200R001 and later versions:
l Fast blinking: The system is starting or
is copying the system software and configuration file from a USB flash drive during a USB-based upgrade.
l Slow blinking: The system is running
normally.
Yellow
l Steady on: The system is performing
self-check during startup (only applicable to V100R006).
4 MODE: mode
indicator
l Blinking: The system has been
successfully upgraded using a USB flash drive and the switch has restarted. You can remove the USB flash drive from the switch.
Red
l Steady on: After registering, the system
does not operate properly, or a fan or temperature alarm has been generated.
l Blinking: An error occurred during
USB-based upgrade and the system failed to be upgraded after a USB flash drive is inserted.
- Off: The service port indicators are in the status mode (default). In the status mode, the service port indicator shows the port link or activity state.
Green Steady on: The service port indicators
show the port speed. After 45 seconds, the service port indicators automatically restore to the status mode.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
NumberIndicator/
Button
5 Mode switch
button
6
Service port indicator
Color Description
Red Steady on: The service port indicators
show the stack ID of the switch. After 45 seconds, the service port indicators automatically restore to the status mode.
-
l When you press this button once, the
mode indicator turns green and the service port indicators show the speed of each service port.
l When you press this button a second
time, the mode indicator turns red and the service port indicators show the stack status.
l When you press this button a third time,
the mode indicator turns off.
If you do not press the button within 45 seconds, the mode indicator restores to status mode.
Meanings of service port indicators vary in different modes. For details, see Table 2-5.
7 ETH indicator Green
l Off: No link is established on the port.
l Steady on: The port is connected.
l Blinking: The port is sending or
receiving data.
Table 2-5 Description of service port indicators in different modes
Display Mode Color Description
Status - Off: The port is not connected or has been
shut down.
Green Steady on: The port is connected.
Yellow Blinking: The interface is sending or
receiving data.
Speed Green and
yellow
l Off: The port is not connected or has
been shut down.
l Both steady on: The port is operating at
a speed of 1000 Mbit/s.
l Both blinking: The port is operating at
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a speed of 10 Gbit/s.
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S6700 Series Ethernet Switches Hardware Description
Display Mode Color Description
2 Chassis
Stack Green and
yellow
l Off: Port indicators do not show the
stack ID of the switch.
l If both indicators are steady on, the
switch is not a master switch:
– If the indicator of a port is steady on,
the number of this port is the stack ID of the switch.
– If the first nine port indicators of the
switch are steady on, the stack ID of the switch is 0.
l If both indicators are blinking, the
switch is a master switch:
– If the indicator of a port is blinking,
the number of this port is the stack ID of the switch.
– If the first nine port indicators of the
switch are blinking, the stack ID of the switch is 0.

2.4.4 Port Description

10GE SFP+ Ethernet Optical Port
A 10GE SFP+ Ethernet optical port supports auto-sensing to 1000 Mbit/s. It receives and sends service data at 1 Gbit/s or 10 Gbit/s. Table 2-6 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 2-6 Attributes of a 10GE SFP+ Ethernet optical port
Attribute Description
Connector type LC/PC
Optical port attributes
Standards compliance
Working mode GE/10GE auto-sensing
Depend on the optical module used (see 7.4.1 SFP/eSFP Modules and
7.4.2 SFP+ Modules)
IEEE802.3ae
Full duplex
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S6700 Series Ethernet Switches Hardware Description
Console Port
The console port is connected to a console for on-site configuration. The port must use a console
cable. The console port is used when a switch is powered on for the first time. Table 2-7 describes
the attributes of the console port.
Table 2-7 Attributes of a console port
Attribute Description
Connector type RJ45
2 Chassis
Standards compliance
Working mode Duplex Universal Asynchronous Receiver/Transmitter (UART)
Baud rate 9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, or 115200 bit/s
ETH Management Port
You can connect a switch to a configuration terminal or network management workstation through the ETH management port to configure the switch locally or remotely. The port must use a network cable. For details on how to use the ETH management port, see the Configuration Guide - Basic Configurations. Table 2-8 describes the attributes of an ETH management port.
Table 2-8 Attributes of an ETH management port
Attribute Description
Connector type RJ45
RS-232
Default value: 9600 bit/s
Standards compliance
Working mode 10/100 Mbit/s auto-sensing
Maximum transmission distance
IEEE802.3
Full duplex
100 m
USB Port
The USB port can have a USB flash drive connected to upgrade the switch, or transfer configuration files or other files. The USB flash drive used on a switch must comply with USB
1.1 and support the Linux operating system. Table 2-9 lists the USB flash drives applicable to a switch.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
Table 2-9 USB flash drives applicable to a switch
CapacityVendor Model Remarks
4 GB Netac U208 You can buy Netac USB 4 GB flash drives from
Huawei or other vendors.
SanDisk Cruzer Blade Huawei does not offer this USB flash drive, and
you must buy it from other vendors.
JTAG port
Hewlett­Packard
v218G Huawei does not offer this USB flash drive, and
you must buy it from other vendors.
PNY M1 Huawei does not offer this USB flash drive, and
you must buy it from other vendors.
8 GB Netac U208 Huawei does not offer this USB flash drive, and
you must buy it from other vendors.
Hewlett­Packard
v225w Huawei does not offer this USB flash drive, and
you must buy it from other vendors.
STEC SLUFD8GU2TUIHuawei does not offer this USB flash drive, and
you must buy it from other vendors.
NOTE
Huawei is not responsible for maintenance service of USB flash drives purchased from other vendors.
Figure 2-5 shows the JTAG port. The JTAG port is an internal port of the switch and is used to
check and diagnose equipment faults.
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S6700 Series Ethernet Switches Hardware Description
Figure 2-5 JTAG port
2 Chassis

2.4.5 Power Supply

Power Supply Configuration
On a S6700-EI switch, one or two power modules can be configured.
When two power modules are used, they work in 1+1 backup mode to provide power for the device. In the versions earlier than V200R005C00, the AC and DC power modules cannot be configured on the same device, while in V200R005C00 and later versions, they can be configured on the same device.
Figure 2-6 shows the power supply connections of dual DC power modules. After DC power
is transmitted to the PWR module, the PWR module provides -53 V output voltage, and the motherboard provides power for the entire device.
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PWR2
NEG RTN
Motherboard
GND-53V
PWR1
NEG RTN
PWR2
L N
Motherboard
GND-53V
PGND
PWR1
L N PGND
S6700 Series Ethernet Switches Hardware Description 2 Chassis
Figure 2-6 Power supply connections of dual DC power modules
NEG: Negative cable RTN: Positive cable GND: -53 V reference ground
Figure 2-7 shows the power supply connections of dual AC power modules. After AC power
is transmitted to the PWR module, the PWR module provides -53 V output voltage, and the motherboard provides power for the entire device.
Figure 2-7 Power supply connections of dual AC power modules
L: Live wire
N: Neutral wire PGND: Protective ground wire GND: -53 V reference ground

2.4.6 Heat Dissipation

Table 2-10 describes the heat dissipation methods of the S6700-EI.
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PWR1
PWR2
SYS
MODE
GREEN=SPEED RED=STACK
LINK/ACT
CONSOLE
ETH
Quidway S6700 Series
Cold air
Hot air
S6700 Series Ethernet Switches Hardware Description 2 Chassis
Table 2-10 S6700-EI heat dissipation method
Model Heat Dissipation Method
l S6700-24-EI
l S6700-48-EI

2.4.7 Specifications

Table 2-11 lists specifications of the S6700-EI.
Table 2-11 Specifications of the S6700-EI
Item Description
Memory (RAM) 512 MB
Forcible heat dissipation The air flows in from the left and right and flows out from the rear.
Flash 64 MB
Mean time between failures (MTBF)
Mean time to repair
l S6700-24-EI: 34.54 years
l S6700-48-EI: 33.76 years
2 hours
(MTTR)
Availability > 0.99999
Surge protecti on
Service port protectio
-
n
Power supply
l AC: ±2 kV in differential mode; ±4 kV in common mode
l DC: ±1 kV in differential mode; ±2 kV in common mode
protectio n
Dimensions (W x D
442.0 mm x 420.0 mm x 43.6 mm
x H)
Weight Fully
≤ 8.5 kg
loaded
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
Item Description
Empty
≤ 5 kg
loaded
Stack port 10GE SFP+ port (A maximum of eight 10GE SFP+ ports is supported.)
RPS Not supported
PoE Not supported
Input DC voltage
Rated input voltage
-48 V DC to -60 V DC
range
Maximu
-38.4 V DC to -72 V DC m voltage range
Input AC voltage
Rated input voltage
100 V AC to 240 V AC, 50/60 Hz
range
Maximu
90 V AC to 264 V AC, 47 Hz to 63 Hz m voltage range
Maximum power (100% throughput,
l S6700-24-EI: 153.6 W
l S6700-48-EI: 240 W
full speed of fans)
Temper ature
Operatin g temperat ure
Storage
-5°C to +50°C (at 0 m to 1800 m altitude)
NOTE
l If using SFP+ optical modules of 40 km or longer transmission distances,
the operating temperature of S6700-EI is between -5°C and 45°C.
l When the altitude is between 1800 m and 5000 m, the highest operating
temperature reduces 1°C every time the altitude increases 220 m.
-40°C to +70°C temperat ure
Noise under normal
Less than 55 dBA temperature (27°C, sound power)
Relative humidity 5% RH to 95% RH, noncondensing
Operating altitude 0 m to 5000 m
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CARD FAN
PWR2 PWR1
STATUS
FAN-060B-B
S6720-30C-EI-24S
12
1234567891011 12
13 14 15 16 17 18 19 20 21 22 23 24
CONSOLE
ETH
MODE
HUAWEI
STCK
SPED
STAT
SYS
PWR1
PWR2
1234
67
8 9 10 11
5
S6700 Series Ethernet Switches Hardware Description 2 Chassis
Item Description
Certification

2.5 S6720-EI

2.5.1 Version Mapping

Table 2-12 lists the mapping between the S6720-EI series switches and software versions.
Table 2-12 Mappings between the S6720-EI series switches and software versions
Series Model Available Version
S6720-EI S6720-30C-EI-24S-AC V200R008C00 and later versions
l EMC certification
l Safety certification
l Manufacturing certification
S6720-54C-EI-48S-AC V200R008C00 and later versions

2.5.2 Appearance and Structure

S6720-30C-EI-24S-AC
Figure 2-8 Appearance of the S6720-30C-EI-24S-AC
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
1 Twenty-four 10GE SFP+ Ethernet
Two 40GE QSFP+ optical ports
2
optical ports
Applicable modules and cables:
Applicable modules and cables:
l GE optical module
l GE-CWDM optical module
l GE-DWDM optical module
l GE copper module (only work at
1000 Mbit/s)
l 10GE SFP+ optical module
(OSXD22N00 not supported)
l QSFP+ optical module
l 1 m, 3 m, 5 m QSFP+ high-speed
copper cables (QSFP+ to QSFP+)
l 1 m, 3 m, 5 m QSFP+ high-speed
copper cables (QSFP+ to 4*SFP+)
NOTE
A 40GE QSFP+ optical port can be split into four 10GE ports.
l 10GE-CWDM optical module
l 1 m, 3 m, 5 m, 10 m SFP+ high-speed
copper cables
l 3 m, 10 m AOC cables
One ETH management port 4 One console port
3
NOTE
It is used with a console cable. The console cable is not delivered with the switch and needs to be separately purchased if needed.
5 One USB port 6 Ground screw
NOTE
It is used with a ground cable.
7 Equipment serial number (ESN) label
NOTE
You can draw it out to view the ESN and MAC address of the switch.
9 Fan module slot
NOTE
Applicable fan module:
FAN-060B-B fan module
11 Power module slot 1
NOTE
l 350 W DC power module
l 600 W AC power module
8 Extended card slot
Applicable card:
l ES5D21Q04Q01
10 Power module slot 2
NOTE
l 350 W DC power module
l 600 W AC power module
- -
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S6720-54C-EI-48S
12
1234567891011 12
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
CONSOLE
ETH
MODE
HUAWEI
STCK
SPED
STAT
SYS
PWR1
PWR2
CARD FAN
PWR2 PWR1
STATUS
FAN-060B-B
1234
67
8 9 10 11
5
S6700 Series Ethernet Switches Hardware Description 2 Chassis
S6720-54C-EI-48S-AC
Figure 2-9 Appearance of the S6720-54C-EI-48S-AC
1 Forty-eight 10GE SFP+ Ethernet
Two 40GE QSFP+ optical ports
2
optical ports
Applicable modules and cables:
Applicable modules and cables:
l GE optical module
l GE-CWDM optical module
l GE-DWDM optical module
l GE copper module (only work at
1000 Mbit/s)
l 10GE SFP+ optical module
(OSXD22N00 and SFP-10G-ZR not
l QSFP+ optical module
l 1 m, 3 m, 5 m QSFP+ high-speed
copper cables (QSFP+ to QSFP+)
l 1 m, 3 m, 5 m QSFP+ high-speed
copper cables (QSFP+ to 4*SFP+)
NOTE
A 40GE QSFP+ optical port can be split into four 10GE ports.
supported)
l 1 m, 3 m, 5 m, 10 m SFP+ high-speed
copper cables
l 3 m, 10 m AOC cables
One ETH management port 4 One console port
3
NOTE
It is used with a console cable. The console cable is not delivered with the switch and needs to be separately purchased if needed.
5 One USB port 6 Ground screw
NOTE
7 Equipment serial number (ESN) label
NOTE
You can draw it out to view the ESN and MAC address of the switch.
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8 Extended card slot
Applicable card:
l ES5D21Q04Q01
It is used with a ground cable.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
2.5.3
9 Fan module slot
NOTE
Applicable fan module:
FAN-060B-B fan module
11 Power module slot 1
NOTE
l 350 W DC power module
l 600 W AC power module

Indicator Description

Table 2-13 is a quick reference table for indicators of S6720-EI switches.
Table 2-13 S6720-EI indicator quick reference table
Switch Model Indicator Description
S6720-30C­EI-24S-AC
S6720-54C­EI-48S-AC
Symbols and meanings of indicators on the S6720-54C-EI-48S-AC are the same as those on the S6720-30C-EI-24S-AC. S6720-30C-EI-24S-
AC is used as an example here.
10 Power module slot 2
NOTE
l 350 W DC power module
l 600 W AC power module
- -
NOTE
Hold down this button for 6 seconds and release it to start the web initial login mode. Either of the following situations will occur:
l If the switch has no configuration file, the system attempts to enter the web initial login mode. In this
mode, the status of mode indicators is as follows:
l If the system enters the web initial login mode successfully, all mode indicators turn green and
stay on for a maximum of 10 minutes.
l If the system fails to enter the initial login mode, all mode indicators fast blink for 10 seconds
and then restore to the default states.
l If the switch has a configuration file, the system cannot enter the web initial login mode. In this case,
all mode indicators fast blink for 10 seconds, and then return to the default states.
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S6720-30C-EI-24S
12
1234567891011 12
13 14 15 16 17 18 19 20 21 22 23 24
CONSOLE
ETH
MODE
HUAWEI
STCK
SPED
STAT
SYS
PWR1
PWR2
S6720-30C-EI-24S
12345
MODE
HUAWEI
STCK
SPED
STAT
SYS
PWR1
PWR2
1723
654
8
8
12
CONSOLE
ETH
91110
1
9
10 11
7
23
65
4
8
8
S6700 Series Ethernet Switches Hardware Description 2 Chassis
S6720-30C-EI-24S-AC
Figure 2-10 Indicators on the S6720-30C-EI-24S-AC
NOTE
The S6720-EI series switches provide a command that can turn on the fault indicators to help field maintenance personnel find a faulty switch.
The SYS indicator and mode indicators (STAT, SPED, and STCK) are used as fault indicators. When an S6720-EI switch is faulty, you can run the command to turn on the fault indicators. Then the SYS indicator and mode indicators fast blink red to help field maintenance personnel quickly find the faulty switch.
Table 2-14 Description of indicators on the switch
No. Indicator Color Description
1 PWR1: power
module indicator
- Off: No power module is available in power module slot 1, or the switch has only one power module but the power module does not work normally.
Green Steady on: A power module is installed in
power module slot 1 and is working normally.
Yellow Steady on: The switch has two power
modules installed. Any of the following situations occurs in power module slot 1:
l A power module is available in this slot
but its power switch is in OFF position.
l A power module is available in this slot
but it is not connected to a power source.
l The power module in this slot has
failed.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
No. Indicator Color Description
2 PWR2: power
module indicator
3
SYS: system status indicator
- Off: No power module is available in power module slot 2, or the switch has only one power module but the power module does not work normally.
Green Steady on: A power module is installed in
power module slot 2 and is working normally.
Yellow Steady on: The switch has two power
modules installed. Any of the following situations occurs in power module slot 2:
l A power module is available in this slot
but its power switch is in OFF position.
l A power module is available in this slot
but it is not connected to a power source.
l The power module in this slot has
failed.
- Off: The system is not running.
Green
l Fast blinking: The system is starting.
4 STAT: status
indicator
5 SPED: speed
indicator
l Slow blinking: The system is running
normally.
Red Steady on: The system does not work
normally after registration, or a fan alarm or temperature alarm has been generated.
Green
l Off: The status mode is not selected.
l Steady on: The status mode (default
mode) is selected, and service port indicators show the link connection states and link activity on ports.
Green
l Off: The speed mode is not selected.
l Steady on: The speed mode is selected.
In this mode, service port indicators show port speeds. After 45 seconds, the service port indicators automatically restore to the status mode.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
No. Indicator Color Description
6 STCK: stack
indicator
Green If you are not changing the indicator mode
(default state):
l Off: The switch is the standby or slave
switch in a stack or a standalone switch with the stacking function disabled.
l Blinking: The switch is the master
switch in a stack or a standalone switch with the stacking function enabled.
If you are changing the indicator mode:
l Off: The stack mode is not selected.
l Steady on: The stack mode is selected.
The switch is a standby or slave switch in a stack, and the service port indicators show the stack ID of the switch.
l Blinking: The switch is the master
switch in a stack or a standalone switch, and the service port indicators show the stack ID of the master switch.
After 45 seconds, the service port indicators automatically restore to the status mode.
7
MODE: mode switch button
-
l When you press this button once, the
service port indicators change to the speed mode and show the speed of each service port.
l When you press the button a second
time, the service port indicators change to the stack mode and show the stack ID of the local switch.
l When you press the button a third time,
the service port indicators restore to the default mode, and the STAT indicator turns green.
If you do not press the MODE button within 45 seconds, the service port indicators restore to the default mode. In this case, the STAT indicator is steady green, the SPED indicator is off, and the STCK indicator is off or blinking green.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
No. Indicator Color Description
8 10GE service
port indicator (two indicators for each port)
NOTE
Arrowheads show the positions of ports. A down arrowhead indicates a port at the bottom, and an up arrowhead indicates a port at the top.
9 40GE service
port indicator (one indicator for each port)
10 ETH port
indicator
Meanings of service port indicators vary in different modes. For details, see Table 2-15.
Meanings of service port indicators vary in different modes. For details, see Table 2-16.
Green
l Off: The ETH port is not connected.
l Steady on: The ETH port is connected.
l Blinking: The ETH port is sending or
receiving data.
11 USB-based
deployment indicator
- Off:
l No USB flash drive is connected to the
switch.
l The USB port is damaged.
l The indicator is damaged.
l The USB flash drive does not have any
configuration file and cannot be used for deployment.
l The switch has been upgraded using the
USB flash drive and is restarting.
Green
l Steady on: A USB-based deployment
has been completed.
l Blinking: The system is reading data
from a USB flash drive.
Yellow Steady on: The switch has copied all the
required files and completed the file check. The USB flash drive can be removed from the switch.
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
No. Indicator Color Description
Red Blinking: An error has occurred when the
system is executing the configuration file or reading data from the USB flash drive.
Table 2-15 Description of 10GE service port indicators in different modes (two indicators for each port)
Mode Color Description
Status - Off: The port is not connected or has been
shut down.
Green Steady on: A link has been established on
the port.
Yellow Blinking: The port is sending or receiving
data.
Speed Green and
yellow
l Off: The port is not connected or has
been shut down.
l Both steady on:
1000M/10GE port: The port is operating at 1000 Mbit/s.
l Green indicator steady on and yellow
indicator blinking:
1000M/10GE port: The port is operating at 10 Gbit/s.
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S6700 Series Ethernet Switches Hardware Description
Mode Color Description
2 Chassis
Stack Green and
yellow
l Off: Port indicators do not show the
stack member ID of the switch.
l Both steady on:
The switch is not the master switch in a stack.
– If the indicators of a service port are
steady on, the number of the service port is the stack ID of the switch.
– If indicators of the first nine ports
are steady on, the stack ID of the switch is 0.
l Green indicator steady on and yellow
indicator blinking:
The switch is the master switch in a stack.
– If the indicators of a service port are
blinking, the number of the service port is the stack ID of the switch.
– If indicators of the first nine ports
are blinking, the stack ID of the switch is 0.
Table 2-16 Description of 40GE service port indicators in different modes (one indicator for each port)
Display Mode Color Description
Status Green
l Off: The port is not connected or has
been shut down.
l Steady on: A link has been established
on the port.
l Blinking: The port is sending or
receiving data.
Speed Green
l Off: The port is not connected or has
been shut down.
l Steady on: The port is operating at 10
Gbit/s.
l Blinking: The port is operating at 40
Gbit/s.
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S6700 Series Ethernet Switches Hardware Description

2.5.4 Port Description

10GE SFP+ Ethernet Optical Port
A 10GE SFP+ Ethernet optical port supports auto-sensing to 1000 Mbit/s. It sends and receives service data at 1000 Mbit/s or 10 Gbit/s. Table 2-17 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 2-17 Attributes of a 10GE SFP+ Ethernet optical port
Attribute Description
Connector type LC/PC
2 Chassis
Optical port attributes
Standards compliance
Working mode GE/10GE auto-sensing
Depend on the optical module used (see SFP/eSFP Modules and SFP
+ Modules)
IEEE802.3ae
Full-duplex
40GE QSFP+ Ethernet Optical Port
A 40GE QSFP+ optical port sends and receives service traffic at 40 Gbit/s and can be split into four 10GE ports. After a split, 40GE QSFP+ optical port needs to be connected to a remote device using a 1-to-4 QSFP+ fiber (with matching optical modules) or a 1-to-4 QSFP+ copper cable. Table 2-18 describes the attributes of a 40GE QSFP+ optical port.
Table 2-18 Attributes of a 40GE QSFP+ optical port
Attribute Description
Connector type MPO/LC
Optical port attributes
Standards compliance
Working mode Full-duplex
Depend on the optical module used (see QSFP+ Modules)
IEEE802.3ba
Console Port
The console port is connected to a console for on-site configuration. The port must use a console
cable. The console port is used when a switch is powered on for the first time. For details about
the attributes of a console port, see Table 2-19.
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S6700 Series Ethernet Switches Hardware Description
Table 2-19 Attributes of a console port
Attribute Description
Connector type RJ45
2 Chassis
Standards compliance
Working mode Duplex Universal Asynchronous Receiver/Transmitter (UART)
Baud rate 9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, or 115200 bit/s
ETH Management Port
You can connect a switch to a configuration terminal or network management workstation through the ETH management port to configure the switch locally or remotely. The port must use a network cable. You can choose to download the software package through the ETH management port in the BootLoad menu. File transfer through the ETH management port is faster than transfer through the console port. For details on how to use the ETH management port, see the Configuration Guide - Basic Configurations. Table 2-20 describes the attributes of an ETH management port.
Table 2-20 Attributes of an ETH management port
Attribute Description
RS-232
Default value: 9600 bit/s
Connector type RJ45
Standards compliance
Working mode 10/100 Mbit/s auto-sensing
Maximum transmission distance
IEEE802.3
Full duplex
100 m
USB Port
The USB port can have a USB flash drive connected to upgrade the switch, or transfer configuration files or other files. The USB flash drive used on an S6720-EI switch must support USB 1.1 or USB 2.0 and be compatible with the Linux operating system.

2.5.5 Power Supply Configuration

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PWR2
NEG RTN
Motherboard
GND12V
PWR1
NEG RTN
PWR2
L N
Motherboard
GND12V
PGND
PWR1
L N PGND
S6700 Series Ethernet Switches Hardware Description
S6720-EI Power Supply Configuration
An S6720-EI switch can have one or two power modules installed.
When a switch has two power modules installed, the two power modules work in 1+1 redundancy mode. AC and DC power modules can be used together in the same switch.
Figure 2-11 shows the power supply connections of dual DC power modules. After DC power
is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.
Figure 2-11 Power supply connections of dual DC power modules
2 Chassis
NEG: Negative cable
RTN: Positive cable GND: 12 V reference ground
Figure 2-12 shows the power supply connections of dual non-PoE AC power modules. After
AC power is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.
Figure 2-12 Power supply connections of dual non-PoE AC power modules
L: Live wire
N: Neutral wire PGND: Protective ground wire GND: 12 V reference ground

2.5.6 Heat Dissipation

Table 2-21 lists the heat dissipation method of the S6720-EI series switches.
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
MODE
S6720-54C-EI-48S
1
2
CONSOLE
ETH
Cold air
Hot air
S6700 Series Ethernet Switches Hardware Description 2 Chassis
Table 2-21 S6720-EI heat dissipation method
Model Heat Dissipation Method
l S6720-30C-
EI-24S-AC
l S6720-54C-
EI-48S-AC

2.5.7 Specifications

Table 2-22 lists specifications of the S6720-EI series switches.
Table 2-22 Specifications of the S6720-EI series switches
Item Description
Memory (RAM) 2 GB
Forcible heat dissipation The air flows in from the left, right, and front, and flows out from the rear panel.
Flash 240 MB
Mean time between failures (MTBF)
l S6720-30C-EI-24S-AC: 80.60 years without card; 70.79 years
when a 4x40GE QSFP+ card is configured
l S6720-54C-EI-48S-AC: 79.39 years without card; 69.86 years
when a 4x40GE QSFP+ card is configured
Mean time to repair
2 hours
(MTTR)
Availability > 0.99999
Surge protecti on
Service port protectio
-
n
Power supply
l AC models: ±6 kV in differential mode; ±6 kV in common mode
l DC models: ±1 kV in differential mode; ±2 kV in common mode
protectio n
Dimensions (W x D
442.0 mm x 420.0 mm x 43.6 mm
x H)
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
Item Description
Weight Fully
≤ 12 kg
loaded
Empty
≤ 8 kg
chassis
Stack port
l Any 10GE SFP+ ports (a maximum of 16 physical ports)
l Any 40GE QSFP+ ports (a maximum of 6 physical ports)
RPS Not supported
PoE Not supported
DC input voltage
Rated voltage range
Maximu
-48 V DC to -60 V DC
-38.4 V DC to -72 V DC m voltage range
AC input voltage
Rated voltage range
100 V AC to 240 V AC, 50/60 Hz
Maximu
90 V AC to 264 V AC, 47 Hz to 63 Hz m voltage range
Maximum power consumption (100%
l S6720-30C-EI-24S-AC: 233.7 W
l S6720-54C-EI-48S-AC: 296.1 W
throughput, full speed of fans)
Temper ature
Operatin g temperat ure
Storage
0°C-45°C (at altitude of 0-1800 m)
NOTE
When the altitude is between 1800 m and 5000 m, the operating temperature reduces by 1°C every time the altitude increases by 220 m.
-40°C to +70°C temperat ure
Noise under normal
Less than 72.1 dBA temperature (27°C, sound power)
Relative humidity 5% RH to 95% RH, noncondensing
Operating altitude 0 m to 5000 m
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S6700 Series Ethernet Switches Hardware Description 2 Chassis
Item Description
Certification
l EMC certification
l Safety certification
l Manufacturing certification
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S6700 Series Ethernet Switches Hardware Description
About This Chapter

3 Power Modules

3 Power Modules
NOTICE
l All power modules are hot swappable, but it is highly recommended that you power off a
switch before removing or installing a power module in the switch to protect personal and equipment safety.
l Before replacing a power module in a switch, make sure that the switch can be powered by
the other power module after the power module is removed. Otherwise, services on the switches will be interrupted by a power failure when the power module is removed.
l Before powering off a switch, shut down all of its power supply units.
l The S6720-EI can use 350 W DC and 600 W AC power modules together. Other models do
not allow power modules of different power values to be used in the same chassis.
3.1 350 W DC power module
3.2 500 W DC Power Module
3.3 600 W AC Power Module
3.4 500 W AC Power Module
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PDC-350WA-B
-48 -60V ; 11A
RTN(+)
NEG(-)
STATUS
S6700 Series Ethernet Switches Hardware Description 3 Power Modules

3.1 350 W DC power module

Product Support
Table 3-1 lists the switch chassis matching a 350 W DC power module.
Table 3-1 Switch chassis matching a 350 W DC power module
Appearance
Power Module
Product Support
Name
PDC-350WA-B Supported only in the S6720-30C-EI-24S-AC and S6720-54C-
EI-48S-AC
Figure 3-1 shows the appearance of a 350 W DC power module.
Figure 3-1 Appearance of a 350 W DC power module
Function
Table 3-2 describes the functions of a 350 W DC power module.
Table 3-2 Functions of a 350 W DC power module
Function Description
Input protection
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Input undervoltage protection
In this protection state, the power module stops supplying power. When the input voltage restores to the normal range, the power module automatically resumes power supply.
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-48 -60V ; 11A
RTN(+)
NEG(-)
STATUS
PDC-350WA-B
2 314 5 6
S6700 Series Ethernet Switches Hardware Description 3 Power Modules
Function Description
Input overcurrent protection
In this protection state, the power module stops supplying power and cannot automatically resume power supply when the input current restores to the normal range.
Output protection
Output overvoltage protection
In this protection state, the power module stops supplying power intermittently. When the system recovers from output overvoltage, the power module automatically resumes power supply.
Output overcurrent protection
In this protection state, the power module supplies power intermittently. When the output current is within a range, the power module automatically resumes power supply.
Output short­circuit protection
In this protection state, the power module supplies power intermittently. When the short circuit is removed, the power module automatically resumes power supply.
Overtemperature protection When the temperature of the power module exceeds a
specified threshold, the power module stops supplying power. When the temperature falls into the normal range, the power module automatically resumes power supply.
Panel
Hot swap Supported
NOTE
When a power module enters overtemperature protection state, take measures to lower the ambient temperature. The power module can automatically resume power supply when the temperature falls within the normal range.
Figure 3-2 shows the panel of a 350 W DC power module.
Figure 3-2 Panel of a 350 W DC power module
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S6700 Series Ethernet Switches Hardware Description
1. Captive screw 2. Airflow flag (air out) 3. Indicator 4. Fan air vent
3 Power Modules
Specifications
5. Handle 6. DC power socket
- -
Table 3-3 describes the indicator on the 350 W DC power module panel.
Table 3-3 Description of the indicator on the 350 W DC power module panel
Indicator Color Description
STATUS: running status indicator
Green
l Off: The power input is abnormal (for example, no
input, overvoltage, or undervoltage) or the power output is abnormal (for example, overvoltage, overcurrent, short-circuit, or overtemperature).
l Steady on: The power module is working normally.
Table 3-4 describes technical specifications of a 350 W DC power module.
Table 3-4 Specifications of a 350 W DC power module
Item Description
Dimensions (W
100 mm x 205 mm x 40 mm
x D x H)
Weight 0.72 kg
Rated input
-48 V DC to -60 V DC
voltage range
Maximum input
-38.4 V DC to -72 V DC
voltage
Maximum input
11 A
current
Maximum
29.17 A
output current
Rated output
12 V
voltage
Rated output
350 W
power
Part number 02310PQN
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STATUS
NEG(-) RTN(+)
S6700 Series Ethernet Switches Hardware Description

3.2 500 W DC Power Module

Version Mapping
Table 3-5 lists the switch chassis and software versions matching a 500 W DC power module.
Table 3-5 Switch chassis and software versions matching a 500 W DC power module
Power Module Name Product Support
LS6W2PSD0500 Supported only in the S6700-24-EI and S6700-48-EI
Appearance
3 Power Modules
Function
Figure 3-3 shows the appearance of a 500 W DC power module.
Figure 3-3 Appearance of the 500 W DC power module
Table 3-6 describes the functions of a 500 W DC power module.
Table 3-6 Functions of a 500 W DC power module
Function Description
Input protection Input power detection is provided.
Output protection Output overcurrent and short-circuit
protection is provided.
Surge protection -
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STATUS
LS6W2PSD0500
NEG(-) RTN(+)
-48 -60V ; 13A
14 2 3
S6700 Series Ethernet Switches Hardware Description 3 Power Modules
Panel Description
Figure 3-4 shows the panel of a 500 W DC power module.
Figure 3-4 Panel of a 500 W DC power module
1. Handle 2. Power status indicator 3. DC socket 4. Captive screw
Specifications
Table 3-7 describes indicators on a 500 W DC power module panel.
Table 3-7 Description of indicators on a 500 W DC power module panel
Indicator Color Description
STATUS Green
l Off: No DC power input is provided.
l Steady on: The DC input power is in the normal
range.
Table 3-8 describes technical specifications of a 500 W DC power module.
Table 3-8 Technical specifications of a 500 W DC power module
Item Description
Dimensions (W x D xH)100 mm x 205 mm x 40 mm
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Weight 1 kg
Rated input voltage
-48 V DC to -60 V DC
range
Maximum input
-38.4 V DC to -72 V DC
voltage range
Input current 13 A
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PAC-600WA-B
STATUS
~100-240V;50/60 Hz;9A
S6700 Series Ethernet Switches Hardware Description
Item Description
3 Power Modules
Maximum output
13 A
current
Maximum output
500 W
power
Part number 02310JWV

3.3 600 W AC Power Module

Product Support
Table 3-9 lists the switch chassis matching a 600 W AC power module.
Table 3-9 Switch chassis matching a 600 W AC power module
Power Module Name
Product Support
Appearance
PAC-600WA-B Supported only in the S6720-30C-EI-24S-AC and S6720-54C-
EI-48S-AC
Figure 3-5 shows the appearance of a 600 W AC power module.
Figure 3-5 Appearance of a 600 W AC power module
Function
Table 3-10 describes the functions of a 600 W AC power module.
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~100-240V;50/60 Hz;9A
STATUS
PAC-600WA-B
213 4 5 6 7 8
S6700 Series Ethernet Switches Hardware Description
Table 3-10 Functions of a 600 W AC power module
Function Description
3 Power Modules
Input protection
Output protection
Input undervoltage protection
Input overcurrent protection
Output overvoltage protection
In this protection state, the power module stops supplying power. When the input voltage restores to the normal range, the power module automatically resumes power supply.
In this protection state, the power module stops supplying power and cannot automatically resume power supply when the input current restores to the normal range.
In this protection state, the power module stops supplying power intermittently. When the system recovers from output overvoltage, the power module automatically resumes power supply.
Output overcurrent protection
Output short­circuit protection
In this protection state, the power module supplies power intermittently. When the output current is within a range, the power module automatically resumes power supply.
In this protection state, the power module supplies power intermittently. When the short circuit is removed, the power module automatically resumes power supply.
Overtemperature protection When the temperature of the power module exceeds a
specified threshold, the power module stops supplying power. When the temperature falls into the normal range, the power module automatically resumes power supply.
Panel
Hot swap Supported
NOTE
When a power module enters overtemperature protection state, take measures to lower the ambient temperature. The power module can automatically resume power supply when the temperature falls within the normal range.
Figure 3-6 shows the panel of a 600 W AC power module.
Figure 3-6 Panel of a 600 W AC power module
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S6700 Series Ethernet Switches Hardware Description
1. Captive screw 2. Airflow flag (air out) 3. Indicator 4. Fan air vent
5. Handle 6. Power switch 7. AC power socket 8. AC terminal locking latch
Table 3-11 describes the indicator on the 600 W AC power module panel.
Table 3-11 Description of the indicator on the 600 W AC power module panel
Indicator Color Description
3 Power Modules
Specifications
STATUS: running status indicator
Green
l Off: The power input is abnormal (for example, no
input, overvoltage, or undervoltage) or the power output is abnormal (for example, overvoltage, overcurrent, short-circuit, or overtemperature).
l Steady on: The power module is working normally.
Table 3-12 lists specifications of a 600 W AC power module.
Table 3-12 Specifications of a 600 W AC power module
Item Description
Dimensions (W
100 mm x 205 mm x 40 mm
x D x H)
Weight 1 kg
Rated input
100 V AC to 240 V AC, 50/60 Hz
voltage range
Maximum input
90 V AC to 290 V AC, 45 Hz to 65 Hz
voltage
Maximum input
9 A
current
Maximum
50 A
output current
Rated output
12 V
voltage
Rated output
600 W
power
Part number 02310PMH
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100-240Vac 50/60Hz 7-3.5A
S6700 Series Ethernet Switches Hardware Description 3 Power Modules

3.4 500 W AC Power Module

Product Support
Table 3-13 lists the switch chassis matching a 500 W AC power modules.
Table 3-13 Switch chassis matching a 500 W AC power module
Appearance
Power Module Name
W0PSA5000 (purplish grey)
Figure 3-7 shows the appearance of a W0PSA5000.
Figure 3-7 Appearance of a 500 W AC power module (W0PSA5000)
Product Support
Supported only in the S6700-24-EI and S6700-48-EI
Function
Table 3-14 describes the functions of a 500 W AC power module.
Table 3-14 Functions of a 500 W AC power module
Function Description
Input protection Input overcurrent and undervoltage
protection is provided.
Output protection Output undervoltage, overvoltage,
overcurrent, and short-circuit protection is provided.
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INPUT
OUTPUT
100-240Vac 50/60Hz 7-3.5A
21 3 4 56
S6700 Series Ethernet Switches Hardware Description 3 Power Modules
Function Description
Overtemperature protection -
Surge protection -
NOTE
When a power module enters overtemperature protection state, take measures to lower the ambient temperature. The power module can automatically resume power supply when the temperature falls within the normal range.
The 500 W AC power supply on the S6700-EI is a PoE power supply. However, it can only be used as a system power supply on the S6700-EI and cannot provide PoE function.
Panel Description
Figure 3-8 shows the panel of a W0PSA5000.
Figure 3-8 Panel of a 500 W AC power module (W0PSA5000)
1. Power status
2. Handle 3. Fan 4. Switch
indicator
5. AC power socket 6. Captive screw
- -
Table 3-15 describes indicators on a 500 W AC power module panel.
Table 3-15 Description of indicators on a 500 W AC power module panel
Indicator Color Description
INPUT - Off: The power module receives no input power.
Green Steady on: The AC input power is in the normal range.
Red Steady on: The AC input power is out of range, for
example, undervoltage or overvoltage.
OUTPUT - Off: The power module has no output power.
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S6700 Series Ethernet Switches Hardware Description 3 Power Modules
Indicator Color Description
Green Steady on: The AC output power is in the normal range.
Red Steady on: The power output is out of range.
l Abnormal power fan operation
l Output overvoltage
l Output overcurrent
l Short circuit
l Overtemperature
Specifications
Table 3-16 describes technical specifications of a 500 W AC power module.
Table 3-16 Technical specifications of a 500 W AC power module
Item Description
Dimensions (W x D xH)100 mm x 205 mm x 40 mm
Weight 1.06 kg
Rated input voltage range
Maximum input voltage range
Maximum input current
Maximum output current
Maximum output power
Part number 02130879
100 V AC to 240 V AC, 50/60 Hz
90 V AC to 264 V AC, 47 Hz to 63 Hz
7 A to 3.5 A
l +12 V: 10 A
l -53.5 V: 7.11 A
l +12 V: 120 W
l -53.5 V: 380 W
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S6700 Series Ethernet Switches Hardware Description 4 Fan Modules

4 Fan Modules

About This Chapter
4.1 CX7E1FANA Fan Module
4.2 FAN-060B-B Fan Module
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STATUS
STATUS
14 4 32
S6700 Series Ethernet Switches Hardware Description

4.1 CX7E1FANA Fan Module

Product Support
Table 4-1 lists the switch chassis matching a CX7E1FANA fan module.
Table 4-1 Switch chassis matching a CX7E1FANA fan module
Fan Module Name Product Support
4 Fan Modules
Appearance
Function
CX7E1FANA fan module
Figure 4-1 shows the appearance of a CX7E1FANA fan module.
Figure 4-1 Appearance of a CX7E1FANA fan module
Supported only in the S6700-24-EI and S6700-48-EI
Panel Description
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A CX7E1FANA fan module has two fans to cool the chassis. A CX7E1FANA fan module is hot swappable.
Figure 4-2 shows the panel of a CX7E1FANA fan module.
Figure 4-2 Panel of a CX7E1FANA fan module
55
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S6700 Series Ethernet Switches Hardware Description
1. Captive screw 2. Fan module indicator 3. Handle 4. Two fans
Table 4-2 shows indicators on the CX7E1FANA fan module panel.
Table 4-2 Description of indicators on the CX7E1FANA fan module panel
Indicator Color Description
STATUS Off The fan module is not running.
4 Fan Modules
NOTE
Air is exhausted from air vents on the panel.
Specifications
Green
l Slow blinking: The fan module is working properly
and its communication is normal.
l Fast blinking: The fan module is working properly
but its communication is abnormal.
Red
l Steady on: The fan module has a hardware fault
and needs to be replaced.
l Slow blinking: An alarm has been generated and
needs to be handled. Common causes of this alarm include errors of dual in-line package (DIP) switches, short-circuit, fan blades blocked, and other fan module faults.
Table 4-3 describes technical specifications of a CX7E1FANA fan module.
Table 4-3 Technical specifications of a CX7E1FANA fan module
Item Description
Dimensions (W x D x H) 103 mm x 99.2 mm x 39.6 mm
Weight 250±20 g
Maximum power
12 W
consumption
Maximum wind pressure 375 Pa
Maximum wind rate 40 CFM
Operating voltage range 12 V DC
Part number 02351651
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STATUS
FAN-060B-B
STATUS
FAN-060B-B
52 13 44
S6700 Series Ethernet Switches Hardware Description

4.2 FAN-060B-B Fan Module

Version Mapping
Table 4-4 lists the switch chassis matching a FAN-060B-B fan module.
Table 4-4 Switch chassis matching a FAN-060B-B fan module
4 Fan Modules
Appearance
Fan Module
Product Support
Name
FAN-060B-B S6720-30C-EI-24S-AC and S6720-54C-EI-48S-AC
Figure 4-3 shows the appearance of a FAN-060B-B fan module.
Figure 4-3 Appearance of a FAN-060B-B fan module
Function
A FAN-060B-B fan module has two fans to cool the chassis. It is hot swappable.
Panel
Figure 4-4 shows the panel of a FAN-060B-B fan module.
Figure 4-4 Panel of a FAN-060B-B fan module
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S6700 Series Ethernet Switches Hardware Description 4 Fan Modules
1. Captive screw 2. Indicator 3. Handle 4. Two fans 5. Airflow flag (air out)
Table 4-5 describes the indicator on the FAN-060B-B fan module panel.
Table 4-5 Description of the indicator on the FAN-060B-B fan module panel
Indicator Color Meaning
Specifications
STATUS: running status indicator
Table 4-6 describes technical specifications of a FAN-060B-B fan module.
Table 4-6 Technical specifications of a FAN-060B-B fan module
Item Description
Dimension s (W x D x H)
Number of fans
Off The fan module is not running.
Green Slow blinking: Fans are working properly.
Red Steady on: The fan module has a hardware fault and
must be replaced.
100 mm x 220 mm x 40 mm
2
Weight 0.4 kg
Maximum power consumpti on
Maximum fan speed
Maximum wind rate
Part number
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32.6 W
19000±10% rounds per minute (RPM)
64 cubic feet per minute (CFM)
02350DNQ
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S6700 Series Ethernet Switches Hardware Description 5 Cards

5 Cards

About This Chapter
5.1 Introduction
5.2 ES5D21Q04Q01 (4-Port 40 Gig QSFP+ Rear Interface Card, Used in S6720-EI Series)
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5.1 Introduction

5.1.1 Card Classification

Table 5-1 lists the card supported by the S6720-EI series switches.
Table 5-1 Card supported by the S6720-EI series switches
Card Type Card Name Card Description Hot Swap
5 Cards
Rear card ES5D21Q04Q01 4-port 40 Gig QSFP+ interface card
(used in S6720-EI)
Supported

5.2 ES5D21Q04Q01 (4-Port 40 Gig QSFP+ Rear Interface Card, Used in S6720-EI Series)

5.2.1 Introduction

The ES5D21Q04Q01 provides four 40GE QSFP+ optical ports to implement data access and line-speed switching.
The ES5D21Q04Q01 can be installed in the rear card slot on the S6720-EI chassis.
Figure 5-1 shows the appearance of the ES5D21Q04Q01.
Figure 5-1 Appearance of the ES5D21Q04Q01
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ES5D21Q04Q01
40G
STAT
12 34
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5.2.2 Version Mapping

Table 5-2 lists the mapping between the ES5D21Q04Q01 and software versions.
Table 5-2 Mappings between the ES5D21Q04Q01 and software versions
Card Name Software Version
ES5D21Q04Q01 V200R008C00 and later versions

5.2.3 Functions and Features

Table 5-3 describes functions and features of the ES5D21Q04Q01.
Table 5-3 Functions and features of the ES5D21Q04Q01
5 Cards
Function and Feature Description
Basic functions Provides four 40GE QSFP+ optical ports to
Hot swap Supported
Service port stacking Ports on the card can be used as stack ports.

5.2.4 Indicators and Ports

Indicator Description
Figure 5-2 shows indicators on the ES5D21Q04Q01.
Figure 5-2 Indicators on the ES5D21Q04Q01
implement data access and line-speed switching. Each 40GE port can be split into four 10GE ports.
NOTE
A 40GE port cannot be used as a stack port after it is split into four 10GE ports.
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STAT
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Table 5-4 describes indicators on the ES5D21Q04Q01.
Table 5-4 Description of indicators on the ES5D21Q04Q01
Number Indicator Color Description
1 STAT Off The system software is not running.
5 Cards
Port Description
Figure 5-3 shows the ports on the ES5D21Q04Q01.
Figure 5-3 Ports on the ES5D21Q04Q01
Green
Red A fault that affects services has occurred.
2 ACT/LINK Green
Off No link is established on the port.
l Fast blinking: The system is starting.
l Slow blinking: The system is running
normally.
The fault cannot be rectified automatically and requires manual intervention.
l Steady on: A link has been established
on the port.
l Blinking: The port is transmitting or
receiving data.
1. Four 40GE QSFP+ optical ports
40GE QSFP+ optical port
A 40GE QSFP+ optical port sends and receives service traffic at 40 Gbit/s and can be split into four 10GE ports. After a split, 40GE QSFP+ optical port needs to be connected to a remote device using a 1-to-4 QSFP+ fiber (with matching optical modules) or a 1-to-4 QSFP+ copper cable. Table 5-5 lists the attributes of a 40GE QSFP+ optical port.
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NOTE
All the optical ports on the ES5D21Q04Q01 support only QSFP+ optical modules and QSFP+ copper cables.
Table 5-5 Attributes of a QSFP+ optical port
Attribute Description
Connector type LC/MPO
Optical port attributes Depend on the optical module used (see 7.4.3
QSFP+ Modules)
Standards compliance IEEE 802.3ba

5.2.5 Specifications

Table 5-6 lists specifications of the ES5D21Q04Q01.
Table 5-6 Specifications of the ES5D21Q04Q01
Item Description
Physical specifications
Environment parameters
l Dimensions (W x D x H): 100 mm x 208 mm x 40 mm
l Weight: 0.5 kg
l Maximum power consumption: 18.83 W
l Operating temperature: 0°C to 45°C
l Relative humidity: 5% RH to 95% RH
l Storage temperature: -40°C to +70°C

5.2.6 Ordering Information

Card ordering information is subject to updates with product version upgrades. The ordering information provided in this manual is for reference only. To obtain latest ordering information, contain Huawei switch distributors or Huawei local office.
Table 5-7 provides ES5D21Q04Q01 ordering information.
Table 5-7 ES5D21Q04Q01 ordering information
Card Description Card Name Part Number
4-port 40 Gig QSFP+ interface card
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6 Cables

About This Chapter
6.1 Ground Cable
6.2 Optical Fiber
6.3 Network Cable
6.4 DC Power Cable (OT and Cord End Terminals)
6.5 DC Power Cable (Quick-Connect Cord End Terminal)
6.6 AC Power Cable
6.7 Console Cable
6.8 Copper Cable
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6.1 Ground Cable

Appearance and Structure
Figure 6-1 shows the appearance of a typical ground cable.
NOTE
Other types of ground cables are similar to the example shown in the figure, except for their cross-sectional area, size of the cable lugs, and cable length.
Figure 6-1 Appearance of a ground cable
6 Cables
Figure 6-2 shows the structure of a ground cable.
Figure 6-2 Structure of a ground cable
Pin Assignments
Table 6-1 lists the pin assignments of a ground cable.
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Table 6-1 Pin assignments of a ground cable
X1 X2
OT-4 OT-6
Connection
A ground cable grounds a device to protect it from lightning and electromagnetic interference. A ground cable is connected to a chassis in the following way:
l The OT-4 naked crimping connector connects to the ground point on the chassis.
l The OT-6 naked crimping connector connects to the ground point on the cabinet.

6.2 Optical Fiber

Active Optical Cable
An active optical cable (AOC) is an optical fiber with optical modules at both ends, making it easy to use. Figure 6-3 shows the appearance of an AOC cable.
Figure 6-3 Appearance of an AOC cable
Table 6-2 lists models and attributes of AOC cables.
Table 6-2 Attributes of AOC cables
Model Length Bend Radius Connector
SFP-10G­AOC3M
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3 m 30 mm SFP+ 0°C to 70°C
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Type
Operating Temperature
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Fiber Jumper
Model Length Bend Radius Connector
Type
SFP-10G­AOC10M
A fiber jumper consists of a length of a single fiber or multiple fibers with optical connectors at both ends. The fiber jumper is a fiber patch cable that connects an optical module to a fiber terminal box.
Figure 6-4 shows the appearance of a single-mode LC/PC fiber jumper.
Figure 6-4 Appearance of a single-mode LC/PC fiber jumper
10 m 30 mm
Operating Temperature
Figure 6-5 shows the appearance of a multimode LC/PC fiber jumper.
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Figure 6-5 Appearance of a multimode LC/PC fiber jumper
6 Cables
Figure 6-6 shows the appearance of a single-mode SC/PC fiber jumper.
Figure 6-6 Appearance of a single-mode SC/PC fiber jumper
Figure 6-7 shows the appearance of an MPO-MPO fiber jumper.
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Figure 6-7 Appearance of an MPO-MPO fiber jumper
Figure 6-8 shows an MPO-4*DLC fiber jumper.
6 Cables
Figure 6-8 MPO-4*DLC fiber jumper
Select fiber jumpers according to the following rules:
1. Determine the length of fiber jumpers based on the actual cabling distance.
2. Determine the fiber type based on the optical module type.
l Use a multimode fiber jumper for a multimode optical module.
l Use a single-mode fiber jumper for a single-mode optical module.
3. Determine the optical connector type based on the interface type.
Ensure that the optical connector at each end of a fiber jumper is the same type as the interface to which it will be connected.
Figure 6-9 shows the structure of an MPO-MPO fiber jumper.
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X1X2
1
2
3
4
5
6
7
8
9
10
11
12
12
11
10
9
8
7
6
5
4
3
2
1
X1
X2
1
2
3
4
5
6
7
8
9
10
11
12
1A 1B 2A 2B
4A 4B
S6700 Series Ethernet Switches Hardware Description 6 Cables
Figure 6-9 Structure of an MPO-MPO fiber jumper
Figure 6-10 shows the structure of an MPO-4*DLC fiber jumper.
Figure 6-10 Structure of an MPO-4*DLC fiber jumper
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Table 6-3 describes the pin assignments of an MPO-MPO fiber jumper.
Table 6-3 Pin assignments of an MPO-MPO fiber jumper
Connector Type Wire Color X1 Pin
1 Blue 1
2 Orange 2
3 Green 3
4 Brown 4
9 Gray 9
10 White 10
11 Red 11
6 Cables
12 Black 12
Table 6-4 lists the pin assignments of an MPO-4*DLC fiber jumper.
Table 6-4 Pin assignments of an MPO-4*DLC fiber jumper
X2 Pin Wire Color X1 Pin
1 Blue 1A
2 Orange 2A
3 Green 3A
4 Brown 4A
9 Gray 4B
10 White 3B
11 Red 2B
12 Black 1B
Fiber Pigtail
A fiber pigtail is an optical fiber that has an optical connector on one end and a length of exposed fiber at the other end. The exposed fiber can be fused to another optical fiber. Fiber pigtails are commonly used to connect optical fibers to optical fiber modules in fiber terminal boxes. (Couplers and jumpers are also used.) Figure 6-11 shows the structure of a fiber pigtail.
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Figure 6-11 Structure of a fiber pigtail
Fiber pigtails are classified into single-mode and multimode fiber pigtails and are used for short­distance connections.
Optical Fiber, Optical Connector, and Fiber Adapter
Optical Fibers
Optical fibers are classified into single-mode fibers and multimode fibers.
l Single-mode fibers have a diameter of 5-10 μm and transmit laser light in one mode with
a specified wavelength. These fibers support a wide frequency band and a high transmission capacity, so they are used for long-distance transmission. Most single-mode fibers are yellow, as shown in Figure 6-4.
l Multimode fibers have a diameter of 50 μm or 62.5 μm and transmit laser light in multiple
modes with a specified wavelength. These fibers have a lower transmission capacity than single-mode fibers and are used for short-distance transmission. Model dispersion occurs during transmission over multimode fibers. Most multimode fibers are orange, as shown in Figure 6-5.
Optical Connector
Optical connectors are used to connect optical fibers of the same type. Table 6-5 lists common optical connectors.
Table 6-5 Common optical connectors
Connector Type
Square connector
Optical Connector
SC/PC connector
LC/PC connector
MTRJ/PC connector
MPO connector
Round connector
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FC/PC connector
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ST/PC connector
- -
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NOTICE
When connecting or removing a square connector, align the connector with the optical interface and do not rotate the fiber. Pay attention to the following points:
l To connect a fiber, align the head of the fiber jumper with the optical interface and insert the
optical fiber into the interface gently.
l To remove a fiber, press the latch on the connector and pull the fiber out.
Fiber Adapter
A fiber adapter (also called a flange) is a fiber connection component. Fiber adapters are widely used in optical distribution frames (ODF), fiber transmission equipment, or optical instruments.

6.3 Network Cable

6 Cables
Types of Network Cables
A network cable connects a maintenance terminal to the console port on the main control board for local or remote maintenance.
Network cables are classified into straight-through cables and crossover cables.
l Straight-through cable: The twisted pairs in the RJ45 connectors at both ends are crimped
in the same sequence. A straight-through cable connects two devices of different types, for example, a PC and a switch.
l Crossover cable: The twisted pairs in the RJ45 connectors at two ends are crimped in
different sequences. A crossover cable connects two devices or interfaces of the same type, for example, two PCs.
Huawei switches support both straight-through and crossover cables and their ports are adaptive to the cable types.
Appearance and Structure
NOTE
l Generally, a network cable is a standard unshielded network cable that uses RJ45 connectors.
l The appearances of the straight-through cable and the crossover cable are the same.
Figure 6-12 shows the appearance of a network cable.
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X1
8
1
Main label
X2
S6700 Series Ethernet Switches Hardware Description
Figure 6-12 Appearance of a network cable
6 Cables
Figure 6-13 shows the structure of a network cable.
Figure 6-13 Structure of a network cable
Pin Assignments
Table 6-6 shows the pin assignments of a straight-through cable.
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Table 6-6 Pin assignments of a straight-through cable
X1 Pin Wire Color X2 Pin
1 White and orange 1
2 Orange 2
3 White and green 3
4 Blue 4
5 White and blue 5
6 Green 6
7 White and brown 7
8 Brown 8
6 Cables
Table 6-7 shows the pin assignments of a crossover cable.
Table 6-7 Pin assignments of a crossover cable
X1 Pin Wire Color X2 Pin
1 White and orange 3
2 Orange 6
3 White and green 1
4 Blue 4
5 White and blue 5
6 Green 2
7 White and brown 7
8 Brown 8
NOTE
To achieve the best electrical transmission performance, ensure that the wires connected to pins 1 and 2 and to pins 3 and 6 are twisted pairs.

6.4 DC Power Cable (OT and Cord End Terminals)

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Types of DC Power Cables
DC power cables include a -48 V power return cable and a -48 V power cable. The -48 V power return cable is connected to a terminal marked RTN (+), and the -48 V power cable is connected to a terminal marked NEG (–).
Appearance and Structure
Figure 6-14 and Figure 6-15 show the appearance and structure of the 48 V power return cable
and -48 V power cable.
Figure 6-14 Appearance of a -48 V power return cable
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Figure 6-15 Appearance of a -48 V power cable
6 Cables
NOTE
A -48 V power return cable is black and is connected to the RTN(+) terminal of the DC power supply. A
-48 V power cable is blue and is connected to the NEG(-) terminal of the DC power supply.
Connection
A DC power cable is connected to a DC power module with OT terminals as follows:
l The OT terminal is connected to the input port on the DC power module of the device.
l The cord end terminal is connected to an external power module.

6.5 DC Power Cable (Quick-Connect Cord End Terminal)

Appearance and Structure
Figure 6-16 shows the appearance of a DC power cable.
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Figure 6-16 Appearance of a DC power cable
Figure 6-17 shows the structure of a DC power cable.
Figure 6-17 Structure of a DC power cable
6 Cables
Pin Assignments
Table 6-8 lists the pin assignments of a DC power cable.
Table 6-8 Pin assignments of a DC power cable
X1 X2 X3
2 female Cord end terminal 4^2 grey Cord end terminal 4^2 grey
Connection
A DC power cable (with quick-connect and cord end terminals) is connected a DC power module with a quick-connect socket as follows:
l The X1 connector is connected to the power socket on the DC power module.
l The X2/X3 cord end terminal is connected to an external power module.
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6.6 AC Power Cable

Appearance and Structure
Figure 6-18 shows the appearance of an AC power cable.
Figure 6-18 AC power cable
6 Cables
NOTE
The AC power cables used in different countries and regions may have different specifications. Figure
6-18 shows the AC power cable complying with China's national standard. The power cable and plug
delivered with the chassis can only be used on this chassis, and cannot be used on other devices.
Connection
An AC power cable connects to the following:
l An AC power input port on the device
l The mains supply

6.7 Console Cable

Appearance and Structure
Figure 6-19 and Figure 6-20 show the appearance and structure of a console cable.
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X1
Pos.1
Pos.9
Pos.6
Pos.5
X2
1 8
Serial port connector
(8-pin, RJ-45)
D-type connector
(9-pin, female)
Label
S6700 Series Ethernet Switches Hardware Description
Figure 6-19 Appearance of a console cable
Figure 6-20 Structure of a console cable
6 Cables
Pin Assignments
Table 6-9 lists the pin assignments of console cable connectors.
Table 6-9 Pin assignments of console cable connectors
Connector X1 (DB9) X2 (RJ45)
Pin assignment 2 3
Connection
A console cable connects the console port of the device to the serial port of an operation terminal to transmit configuration data. A shielded cable or an unshielded cable can be used according to the onsite situation.
3 6
5 5
A console cable connects the device and terminal as follows:
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l The 8-pin RJ45 connector is inserted into the console port of the device.
l The DB9 connector is inserted into the terminal serial port.
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6.8 Copper Cable

Types of Copper Cables
Table 6-10 shows the types of copper cables.
Table 6-10 Types of copper cables
6 Cables
Model Length Electrical
attribute
SFP-10G­CU1M
SFP-10G­CU3M
SFP-10G­CU5M
SFP-10G­AC10M
QSFP-40G­CU1M
QSFP-40G­CU3M
QSFP-40G­CU5M
QSFP-4SFP10 G-CU1M
1 m Passive 25 mm SFP+
3 m Passive 25 mm SFP+
5 m Passive 30 mm SFP+
10 m Active 25 mm SFP+
1 m Passive 55 mm QSFP+
3 m Passive 60.5 mm QSFP+
5 m Passive 67 mm QSFP+
1 m Passive 25 mm QSFP+ to
Bend Radius Connector
Type
4*SFP+
QSFP-4SFP10 G-CU3M
QSFP-4SFP10 G-CU5M
3 m Passive 25 mm QSFP+ to
5 m Passive 50 mm QSFP+ to
NOTICE
The two ends of a copper cable must be covered by electrostatic discharge (ESD) caps.
When used for data transmission between service ports, copper cables can only connect switches of the same subseries, and cannot be used between switches of different subseries or between Huawei and non-Huawei switches.
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4*SFP+
4*SFP+
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Appearance and Structure
Figure 6-21 shows the appearance of an SFP/SFP+ copper cable.
Figure 6-21 Appearance of an SFP/SFP+ copper cable
Figure 6-22 shows the appearance of a QSFP+ copper cable.
Figure 6-22 Appearance of a QSFP+ copper cable
6 Cables
Figure 6-23 shows the appearance of a QSFP+ to 4*SFP+ copper cable.
Figure 6-23 Appearance of a QSFP+ to 4*SFP+ copper cable
Figure 6-24 shows the structure of an SFP/SFP+ copper cable.
Figure 6-24 Structure of an SFP/SFP+ copper cable
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X1 X2
X1X2
X1
X2
A
B
D
C
S6700 Series Ethernet Switches Hardware Description
Figure 6-25 shows the structure of a QSFP+ copper cable.
Figure 6-25 Structure of a QSFP+ copper cable
Front view:
Rear view:
Figure 6-26 shows the structure of a QSFP+ to 4*SFP+ copper cable.
Figure 6-26 Structure of a QSFP+ to 4*SFP+ copper cable
6 Cables
Stack Description
In addition to data transmission, copper cables can be used for stack connection.
Before setting up a stack, familiarize yourself with the device-supported stack connection modes and software and hardware requirements. For details, see "Determining the Stack Connection Mode and Software and Hardware Requirements" under "Typical Stack Configuration" in the Typical Configuration Examples.
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S6700 Series Ethernet Switches Hardware Description 7 Pluggable Modules for Interfaces

7 Pluggable Modules for Interfaces

About This Chapter
7.1 Important Notes About Using Optical Modules Certified for Huawei Switches
7.2 Understanding Optical Modules
7.3 Understanding Copper Modules
7.4 Models and Parameters
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7 Pluggable Modules for Interfaces

7.1 Important Notes About Using Optical Modules Certified for Huawei Switches

7.1.1 How to Identify Huawei-Certified Optical Modules

NOTICE
l Huawei switches must use Huawei-certified optical modules. Non-Huawei-certified optical
modules cannot ensure transmission reliability and may affect service stability. Huawei is not liable for any problem caused by the use of non-Huawei-certified optical modules and will not fix such problems.
l The methods provided here are only for reference. To confirm whether optical modules you
use have been certified by Huawei, contact Huawei Technical Assistant Center (TAC).
If the optical modules you use are delivered after July 1, 2013, use either of the following methods to determine whether they have been certified by Huawei.
Method 1: Check for "HUAWEI" on the Label
If an optical module has been certified by Huawei, its label contains "HAUWEI", as shown in
Figure 7-1.
Figure 7-1 "HUAWEI" on the label of a Huawei-certified optical module
Method 2: Run the display transceiver Command
If an optical module meets the following conditions, it has been certified by Huawei. Otherwise, the optical module is not a Huawei-certified one.
l In the display elabel command output, the Manufactured field displays a date later than
2013-07-01.
l In the display version command output, the display version is V200R001C00 or later.
l In the display transceiver command output, the Manufacturing Date field displays a date
later than 2013-07-01, and the Vendor Name field displays HUAWEI.

7.1.2 Risks of Using Non-Huawei-Certified Optical Modules

During certification of optical modules for Huawei switches, Huawei completes comprehensive functionality verification to ensure quality of optical modules. The verified items include optical module plug/unplug, transmit optical power, receive optical power, signal transmission quality,
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data reading, error tolerance, compatibility, electromagnetic compatibility (EMC), and environmental parameters.
Non-Huawei-certified optical modules may cause the following problems:
l Non-standard structure and size cause failures to install optical modules on adjacent optical
interfaces.
Structures or sizes of some non-Huawei-certified optical modules do not comply with the Multi-Source Agreement (MSA). When such an optical module is installed on an optical interface, the size of this optical module hinders optical module installation on adjacent optical interfaces.
l Data bus defects cause suspension of a switch's data bus.
Some non-Huawei-certified optical modules have defects in data bus designs. Using such an optical module on a switch causes suspension of the connected data bus on the switch. As a result, data on the suspended bus cannot be read.
l Improper edge connector size damages electronic devices of optical interfaces.
If a non-Huawei-certified optical module with improper edge connector size is used on an optical interface, electronic devices of the optical interface will be damaged by short circuits.
7 Pluggable Modules for Interfaces
l Unnormalized temperature monitoring causes incorrect alarms.
The temperature monitoring systems of some non-Huawei-certified optical modules do not comply with industry standards and report temperature values higher than the real temperature. When such optical modules are used on a switch, the system will report incorrect temperature alarms.
l Improper register settings cause errors or failures in reading parameters or diagnostic
information.
Some non-Huawei-certified optical modules have improper register values on page A0, which can cause errors or failures when the system attempts to read parameters or diagnostic information from a data bus.
l Some non-Huawei-certified optical modules are not designed in compliance with EMC
standards and have low anti-interference capability. Additionally, they bring electromagnetic interference to nearby devices.
l The operating temperature ranges of non-Huawei-certified optical modules cannot meet
service requirements. When they are used under relatively high temperature, the optical power decreases, resulting in service interruption.

7.2 Understanding Optical Modules

7.2.1 What Is an Optical Module

On an optical network, a sender needs to convert electrical signals into optical signals before sending them to a receiver, and the receiver needs to convert received optical signals into electrical signals. An optical module is a component that completes electrical/optical conversion on an optical network. Figure 7-2 shows the structure of an optical module.
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1 3 2
4
5
8
7
6
S6700 Series Ethernet Switches Hardware Description
Figure 7-2 Structure of an optical module
7 Pluggable Modules for Interfaces
1. Handle 2. Receiver 3. Transmitter
4. Shell 5. Label 6. Dust plug
7. Spring 8. Connector -

7.2.2 Types of Optical Modules

Optical modules are available in various types to meet diversified requirements.
l Classified by transmission rates
Depending on transmission rates, optical modules are classified into 40GE, 10GE and GE optical modules.
l Classified by encapsulation types
The higher transmission rate an optical module provides, the more complex structure it has. Optical modules are encapsulated in different modes to provide different structures. Huawei switches support optical modules of the following encapsulation types: QSFP+, SFP, eSFP, and SFP+.
– SFP: small form-factor pluggable. SFP optical modules support LC fiber connectors
and are hot swappable.
– eSFP: enhanced small form-factor pluggable. An eSFP module is an SFP module that
supports monitoring of voltage, temperature, bias current, transmit optical power, and
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receive optical power. Therefore, eSFP is also called SFP sometimes.
– SFP+: small form-factor pluggable plus, SFP with a higher rate. SFP+ optical modules
are more sensitive to electromagnetic interference (EMI) because they have a higher
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rate. To reduce EMI, SFP+ optical modules have more springs than SFP optical modules and the cages for SFP+ modules on a card are tighter.
– QSFP+: quad small form-factor pluggable. QSFP+ optical modules support MPO fiber
connectors and are larger than SFP+ optical modules.
l Classified by physical layer standards
Different physical layer standards are defined to allow data transmission in different modes. Therefore, different types of optical modules are produced to comply with these standards. The Standard column of Table 7-1 lists the physical layer standards.
l Classified by modes
Optical fibers are classified into single-mode and multimode fibers. Therefore, optical modules are also classified into single-mode and multimode modules to support different optical fibers.
– Single-mode optical modules are used with single-mode fibers. Single-mode fibers
support a wide band and large transmission capacity, and are used for long-distance transmission.
– Multimode optical modules are used with multimode fibers. Multimode fibers have
lower transmission performance than single-mode fibers because of modal dispersion, but their costs are also lower. They are used for small-capacity, short-distance transmission.
Table 7-1 provides optical module classification based on different factors.
Table 7-1 Optical module classification
Encapsul
Rate Standard Description ation Type
eSFP GE 1000BASE-SX (IEEE
802.3z)
Uses one single-mode fiber for bidirectional transmission at 1 Gbit/s over a distance within 1 km.
1000base-LX/LH (IEEE
802.3ah)
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 1 Gbit/s over a distance within 40 km.
1000base-ZX (IEEE
802.3)
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 1 Gbit/s over a distance within 100 km.
1000base-BX (IEEE
802.3ah)
Uses one single-mode fiber for bidirectional transmission at 1 Gbit/s over a distance within 80 km.
CWDM (IEEE 802.3) Coarse wavelength division
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multiplexing, which uses one single­mode fiber to transmit signals on multiple channels. It transmits data at 1 Gbit/s over a distance within 80 km.
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Encapsul
Rate Standard Description ation Type
DWDM (IEEE 802.3) Dense wavelength division
SFP+ 10GE 10Gbase-USR (IEEE
802.3)
10Gbase-BX (IEEE
802.3)
10GBASE-iLR Uses one Rx multimode fiber and one
multiplexing, which uses one single­mode fiber to transmit signals on multiple channels. It transmits data at 1 Gbit/s over a distance within 120 km.
Uses one Rx multimode fiber and one Tx multimode fiber to transmit data at 10 Gbit/s over a distance within 100 m.
Uses one single-mode fiber for bidirectional transmission at 10 Gbit/ s over a distance within 10 km.
Tx multimode fiber to transmit data at 10 Gbit/s over a distance within 1.4 km.
SFP+ 10GE 10GBASE-SR (IEEE
802.3ae)
10GBASE-LR (IEEE
802.3ae)
10GBASE-ER (IEEE
802.3ae)
10Gbase-ZR (IEEE
802.3)
QSFP+ 40GE 40Gbase-SR4 (IEEE
802.3ba)
Uses one Rx multimode fiber and one Tx multimode fiber to transmit data at 10 Gbit/s over a distance within 400 m.
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 10 Gbit/s over a distance within 10 km.
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 10 Gbit/s over a distance within 40 km.
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 10 Gbit/s over a distance within 80 km.
Uses one Rx multimode fiber and one Tx multimode fiber to transmit data at 40 Gbit/s over a distance within 150 m.
40Gbase-LR4 (IEEE
802.3ba)
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Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 40 Gbit/s over a distance within 10 km.
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Encapsul
Rate Standard Description ation Type

7.2.3 Parameter Description

40GBASE-ER4 (IEEE
802.3ba)
40Gbase-iSR4 (IEEE
802.3ba)
40Gbase-eSR4 (IEEE
802.3ba)
Uses one Rx single-mode fiber and one Tx single-mode fiber to transmit data at 40 Gbit/s over a distance within 40 km.
Uses one Rx multimode fiber and one Tx multimode fiber to transmit data at 40 Gbit/s over a distance within 150 m.
Uses one Rx multimode fiber and one Tx multimode fiber to transmit data at 40 Gbit/s over a distance within 400 m.
Transmit optical power
Output optical power of an optical module when it is working properly. When two optical modules are connected, the transmit optical power of one end must be within the range of receive optical power on the other end.
Receive optical power Average input optical power that the receiver of an optical module can receive within a
range of bit error rate (BER = 10
-12
). The upper limit of this parameter is the overload optical power and the lower limit is the maximum receiver sensitivity. When two optical modules are connected, the receive optical power on one end determines the range of transmit optical power on the other end.
Maximum receiver sensitivity
Minimum average input optical power that the receiver of an optical module can receive within a range of bit error rate (BER = 10
-12
). When two optical modules are connected, the maximum receiver sensitivity on one end determines the minimum value of transmit optical power on the other end.
Overload optical power Maximum average input optical power that the receiver of an optical module can receive
within a range of bit error rate (BER = 10
-12
). When two optical modules are connected, the overload optical power on one end determines the maximum transmit optical power on the other end.
Extinction ratio Minimum ratio of the average optical power with signals transmitted against the average
optical power without signals transmitted in complete modulation mode. The extinction ratio indicates the capability of an optical module to identify signal 0 and signal 1. This parameter is a quality indicator for optical modules. Optical modules with a large extinction ratio may not have good quality. Qualified optical modules should have an extinction ratio complying with IEEE 802.3.
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S6700 Series Ethernet Switches Hardware Description
Fiber mode Mode of optical fibers defined based on core diameters and features of optical fibers.
Optical fibers are classified into single-mode and multimode fibers. Generally, multimode fibers have large core diameters and severe dispersion, so they are used to transmit optical signals over short distances. Single-mode fibers have smaller diameters and small dispersion, so they can transmit optical signals over long distances.
Modal bandwidth Bandwidth measured at a point with transmit power several dB lower than that of the
point with the peak center wavelength. Modal bandwidth reflects spectrum characteristics of multimode fibers. The higher modal bandwidth a multimode fiber has, the longer transmission distance the fiber supports.
Fiber diameter Diameter of the core of a fiber. According to international standards for optical fibers,
the diameter of a multimode fiber is 62.5 um or 50 um, and the diameter of a single­mode fiber is 9 um. Select optical fibers with diameters supported by the optical modules.
Fiber class Optical signals with different wavelengths have their best working windows in different
optical fibers. To help efficiently adjust wavelengths or dispersion features of optical fibers and change their refractive indexes, the following fiber classes are defined: multimode fiber (G.651), common single-mode fiber (G.652), shifted dispersion fiber (G.653), and non-zero shifted dispersion fiber (G.655). G.651 and G.652 are commonly used fiber classes. Optical fibers of higher classes support longer transmission distances. When selecting optical fibers for optical modules, determine the classes of fibers based on the required transmission distances.
7 Pluggable Modules for Interfaces
Connector type Type of the interface on an optical module to accommodate a fiber. Commonly used
connector types are LC (applicable to all the SFP, SFP+, and XFP modules), SC, and MPO (applicable to 150 m QSFP+ and CXP modules). Select optical fibers with connectors supported the optical modules.
Transmission distance Maximum distance over which optical signals can transmit. Optical signals sent from
different types of sources can transmit over different distances due to negative effects of optical fibers, such as dispersion and attenuation. When connecting optical interfaces, select optical modules and fibers based on the maximum signal transmission distance.
Interface rate Maximum rate of electrical signals that an optical component can transmit without bit
errors. The interface rates defined in Ethernet standards include 125 Mbit/s, 1.25 Gbit/ s, 10.3125 Gbit/s, and 41.25 Gbit/s. When connecting optical interfaces, select optical modules and fibers based on the maximum signal transmission rate.
Center wavelength Wavelength measured at the midpoint of the half-amplitude line in the transmit spectrum.
Two connected optical modules must have the same center wavelength.
MSA Multi-Source Agreement, a non-profit organization jointly established by optical module
manufacturers. This agreement defines the structure and dimensions of optical transceivers by referring to Optical Internetworking Forum (OIF) and International Telecommunication Union (ITU) standards.

7.2.4 How to View Optical Module Parameters

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