q-Tech QSR-2920 Series User manual

INSTALLATION MANUAL
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QSR-2920 Series Router
QSR-2920-04-AC, QSR-2920-04-AC-AC, QSR-2920-14-AC, QSR-2920-14-
AC-AC, QSR-2920-14P-AC, QSR-2920-24-AC, QSR-2920-24-AC-AC

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Copyright Statement
Copyright2020 QTECH LLC. All rights reserved.
Without the written approval of the Company, no company or individual is allowed to extract,
reproduce, translate or propagate this Manual, in whole or in part, in whatsoever manner.
QTECH is the trademark of Qtech LLC. All other trademarks, product marks and trade names
referenced herein are owned by their owners respectively.
This Manual may be subject to changes on account of product upgrade or other causes. QTECH
reserves the right to revise this Manual without any notice. Subject to the laws and
regulations, QTECH LLC shall, under no circumstance, be responsible for any accident,
negligence, breach of contract, defamation and infringement of copyright or intellectual
property right incurred by using the related content of this Product Manual or this website,
assume any liabilities for damage with respect to any special, incidental, indirect or secondary
losses and any losses on profit, data, business reputation or expected economy so caused or
bear any legal liabilities so arisen.
Safety Statement
Important! Please read the product safety and compatibility information before energizing and
enabling the product.
Environmental Statement
This product complies with the design requirements in terms of environmental protection and
shall be stored, used and disposed in accordance with the related national laws and
regulations.

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Preface
Manual Introduction
This manual introduces the appearance, hardware, and installation preparation and method of
the QSR-2920 series router, as well as its basic use and daily maintenance in terms of
energization & operation, troubleshooting and equipment maintenance.
Product Version
This manual is applicable to the product versions as below.
Product name
Product Version
QSR-2920 series router
QSR-2920-04-AC(V1)
QSR-2920-04-AC-AC(V1)
QSR-2920-14-AC(V1)
QSR-2920-14-AC-AC(V1)
QSR-2920-14P-AC(V1)
QSR-2920-24-AC(V1)
QSR-2920-24-AC-AC(V1)
Target Users
The major target users of this Manual are:
Hardware Installation Engineer
Debugging Engineer
Site Maintenance Engineer
System Maintenance Engineer
Convention
Convention of screen output formats
Format
Description
Screen print
Screen output
Keywords of
Key information of screen output (red part)

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Screen print
Convention of icons and signs
Format
Description
Note:
Supplement to or emphasis on the aforesaid.
Caution:
Matters that need attention while installing or operating the
equipment, which are important for proper installation and
operation.
Warning:
Operations prohibited or required to follow the specified
steps; otherwise, personal injuries or equipment damages are
possible.
Convention of command formats
Format
Description
Bold
Keywords of command line
Italic
Parameters of command line
Brace “{ }”
Options in the brace are compulsory.
Bracket “[ ]”
Options in the bracket are optional.
Angle bracket “<>”
Information in the angle bracket is not displayed.
Square bracket “【】”
Contents in the square bracket need attention.
Upright slash “|”
A sign to separate the options, with the same meaning as
“or”.
Slash “/”
A sign to separate the options, indicating a multi-choice
operation.
For the purpose of this manual, the icons have the definitions as below:
Icons
Description

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This icon and its related description generally refer to the
switch.
Product Details
The manual matching with the product is as follows:
Manual
Description
QSR-2920 Series Router
Configuration Manual
Detailed introduction to the methods and steps of
configuring the equipment software functions,
with the typical cases made available for
reference.
Technical Support
Technical support hotline: [phone] * 555
Email (feedback): [email protected]
Revision History
The Revision History is the summary of all manual updates. The latest version includes all
previous updates.
Version
Revision date
Description
V1.0
2017-3-1
First issue
V1.1
2017-8-24
Add the content of QSR-2920-14P-AC

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Contents
1. ROUTER INTRODUCTION 12
1.1. QSR-2920-04-AC Appearance and Hardware 12
1.2. QSR-2920-04-AC-AC Appearance and Hardware 13
1.3. QSR-2920-14-AC Appearance and Hardware 14
1.4. QSR-2920-14-AC-AC Appearance and Hardware 14
1.5. QSR-2920-14P-AC Appearance and Hardware 15
1.6. QSR-2920-24-AC Appearance and Hardware 16
1.7. QSR-2920-24-AC-AC Appearance and Hardware 17
1.8. Panel Specifications of QSR-2920 Series Router 18
1.9. Air Passage of QSR-2920 Series Router 21
1.10. Optional Power Module of QSR-2920 Series Router 21
2. INSTALLATION PREPARATIONS 23
2.1. Check Router Running Environment 23
2.2. Safety Precautions 23
1.2.2. General Safety 23
2.2.2. Electrical Safety 23
3.2.2. Static Safety 24
4.2.2. Laser Safety 25
2.3. Installation Tools, Instruments, and Equipment 25
2.4. Open-Package and Inspection 25
3. ROUTER INSTALLATION 26
3.1. Install Router 26
1.3.1. Install Router to Workbench 26
2.3.1. Install Router to Cabinet 26
3.2. Ground the Router 30
3.3. (Optional) Install SPD 31
1.3.3. Install AC Power SPD 31
2.3.3. (Optional) Install Port Lightning Protector 32
3.4. Connect Power Cable 33
1.3.4. Installation Preparations 33
2.3.4. Connect AC Power Cable 33
3.5. Check after Installation 34

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4. POWER ON AND RUN ROUTER 35
4.1. Log into Router 35
1.4.1. Connect Console Cable 35
2.4.1. Set PC HyperTerminal Parameters 36
3.4.1. Power on and Start 40
4.4.1. Check after Power on 41
4.2. Access Network 42
1.4.2. Access Network via Ethernet Twisted Pair 42
2.4.2. Access Network via Fiber 42
4.3. Hardware Management 45
1.4.3. View Software and Hardware Version Information of Router 46
2.4.3. View Power Module Status Information 47
3.4.3. View System Environment Temperature Information 48
4.4.3. View Fan Status Information 48
5.4.3. View Swappable Optical Module Information 48
6.4.3. View POE Status Information 49
5. TROUBLESHOOTING 52
5.1. Troubleshooting of Configuration System 52
1.5.1. Troubleshooting about no Display on Terminal 52
2.5.1. Troubleshooting about Messy Code on Terminal 52
5.2. Troubleshooting about Fan 52
5.3. Troubleshooting about Power 53
5.4. Get Technical Support 53
6. ROUTER MAINTENANCE 55
6.1. Change Interface Daughter Card 55
6.2. Change Swappable Optical Module 56
6.3. De-dust the Router 58
1.6.3. De-dust the Fan 59
2.6.3. De-dust the Interface Daughter Card 59
3.6.3. De-dust Optical Interface and Pigtail Connector 60
7. APPENDIX 62
7.1. Entire Router and Common Module Specifications 62
1.7.1. Power Consumption/Dimension/Weight 62
7.2. Specifications of General Interfaces 63
1.7.2. 10Base-T/100Base-TX/1000Base-T-RJ45 Electrical Interface Attributes 63

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2.7.2. 1000Base-X-SFP Optical Interface Attributes 63
3.7.2. USB Interface Attributes 64
4.7.2. CONSOLE Port Attributes 64
5.7.2. Micro USB Interface Attributes 64
7.3. Router Running Environment Requirement 65
1.7.3. Environment Requirement 65
7.3.1.1. Temperature Requirement 65
2.7.3. Humidity Requirement 65
3.7.3. Cleanliness Requirements 66
4.7.3. Anti-Interference Requirement 67
5.7.3. Grounding Requirement 67
6.7.3. Requirements for Power Supply 68
7.3.6.1. AC Power Supply Requirement 68
7.3.6.2. Suggestions on fundamental AC power supply 68
7.4. Router Grounding Specifications and Protection 70
1.7.4. Router Grounding Specifications 70
2.7.4. General Grounding Specifications 70
3.7.4. Grounding Specifications for the Building 70
4.7.4. Router Grounding Specifications 70
5.7.4. Grounding Specifications for Communication Power 71
6.7.4. Laying Specifications of Signal Cable 72
7.7.4. Laying Specifications of Ground Wires 72
7.5. Router Protection 73
1.7.5. General Requirement of Lightning Protection Wires 73
7.6. Installation Method of Cable Wiring 74
1.7.6. Equipotential Connection Method 76
7.7. Cables 77
1.7.7. Console Cables 77
2.7.7. GE Ethernet Interface Cable 78
7.8. Environmental Substance Statement 78

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Figure
FIGURE 1-1 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-04-AC .......................................................................12
FIGURE 1-2 THE REAR APPEARANCE DIAGRAM OF QSR-2920-04-AC.........................................................................12
FIGURE 1-3 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-04-AC-AC ................................................................13
FIGURE 1-4 THE REAR APPEARANCE DIAGRAM OF QSR-2920-04-AC-AC ..................................................................13
FIGURE 1-5 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-14-AC .......................................................................14
FIGURE 1-6 THE REAR APPEARANCE DIAGRAM OF QSR-2920-14-AC.........................................................................14
FIGURE 1-7 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-14-AC-AC ................................................................15
FIGURE 1-8 THE REAR APPEARANCE DIAGRAM OF QSR-2920-14-AC-AC ..................................................................15
FIGURE 1-9 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-14P-AC.....................................................................16
FIGURE 1-10 THE REAR APPEARANCE DIAGRAM OF QSR-2920-14P-AC.....................................................................16
FIGURE 1-11 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-24-AC .....................................................................17
FIGURE 1-12 THE REAR APPEARANCE DIAGRAM OF QSR-2920-24-AC.......................................................................17
FIGURE 1-13 THE FRONT APPEARANCE DIAGRAM OF QSR-2920-24-AC-AC ..............................................................18
FIGURE 1-14 THE REAR APPEARANCE DIAGRAM OF QSR-2920-24-AC-AC ................................................................18
FIGURE 2-1 USING METHOD OF ANTI-STATIC WRIST.....................................................................................................24
FIGURE 3-1 THE MINIMUM SLIDE HEIGHT ....................................................................................................................27
FIGURE 3-2 INSTALL THE FLOATING NUT .....................................................................................................................28
FIGURE 3-3 INSTALL THE ROUTER TO THE 19-INCH STANDARD CABINET .....................................................................29
FIGURE 3-4 CONNECT THE GROUND CABLE .................................................................................................................30
FIGURE 3-17 THE POWER SPD ....................................................................................................................................31
FIGURE 3-18 CONNECT TO THE AC POWER CABLE ......................................................................................................34
FIGURE 4-1 CONSOLE CABLE.......................................................................................................................................35
FIGURE 4-2 CONNECT THE ROUTER AND PC VIA THE CONSOLE PORT ..........................................................................36
FIGURE 4-3 “LOCATION INFORMATION” INTERFACE.................................................................................................37
FIGURE 4-4 THE TELEPHONE AND MODEM INTERFACE .............................................................................................37
FIGURE 4-5 “CONNECTION DESCRIPTION” INTERFACE ................................................................................................38
FIGURE 4-6 “CONNECT TO” INTERFACE .......................................................................................................................38
FIGURE 4-7 “COM* PROPERTIES” INTERFACE ............................................................................................................39
FIGURE 4-8 “TEST-HYPERTERMINAL” INTERFACE ....................................................................................................39
FIGURE 4-9 “TEST PROPERTIES” INTERFACE..............................................................................................................40
FIGURE 4-10 TEST-HYPERTERMINAL INTERFACE AFTER SETTING..............................................................................40
FIGURE 4-11 APPEARANCE OF THE LC FIBER CONNECTOR ..........................................................................................42
FIGURE 4-12 PULL OUT THE DUST PLUG ......................................................................................................................43
FIGURE 4-13 SFP MODULE ..........................................................................................................................................43
FIGURE 4-14 INSTALL THE SFP MODULE .....................................................................................................................43
FIGURE 4-15 REMOVE THE OPTICAL DUST CAP ............................................................................................................44

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FIGURE 4-16 REMOVE THE DUST CAP OF THE SFP MODULE.........................................................................................44
FIGURE 4-17 CONNECT THE OPTICAL FIBER.................................................................................................................45
FIGURE 4-18 INSTALL THE DUST CAP OF THE OPTICAL INTERFACE ...............................................................................45
FIGURE 6-1 LOOSEN THE CAPTIVE SCREW ...................................................................................................................55
FIGURE 6-2 UNINSTALL THE INTERFACE DAUGHTER CARD ..........................................................................................55
FIGURE 6-3 INSTALL THE INTERFACE DAUGHTER CARD ...............................................................................................56
FIGURE 6-4 FIX THE CAPTIVE SCREW ..........................................................................................................................56
FIGURE 6-5 UNINSTALL THE SFP MODULE ..................................................................................................................57
FIGURE 6-6 INSTALL THE DUST CAP OF THE SFP MODULE ...........................................................................................57
FIGURE 6-7 INSTALL THE SFP MODULE .......................................................................................................................57
FIGURE 6-8 UNINSTALL THE DUST CAP OF THE SFP MODULE.......................................................................................58
FIGURE 6-9 THE SFP CONNECTION FIBER....................................................................................................................58
Appendix Figure
APPENDIX FIGURE D-1 DIAGRAM OF ROUTER EQUIPOTENTIAL CONNECTION ..............................................................76
APPENDIX FIGURE E-1 CONSOLE CABLE .....................................................................................................................77

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Table
TABLE 1-1 INTERFACES ON THE FRONT PANEL OF QSR-2920 SERIES ROUTER .............................................................18
TABLE 1-2 THE MEANINGS OF THE PANEL INDICATORS................................................................................................20
TABLE 1-3 POWER MODULES SUPPORTED BY QSR-2920.............................................................................................21
TABLE 4-1 THE INDICATOR STATUS WHEN THE ROUTER WORKS NORMALLY ................................................................41
TABLE 4-2 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW VERSION .......................................46
TABLE 4-3 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW SYSTEM POWER ............................47
TABLE 4-4 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW SYSTEM FAN .................................48
TABLE 4-5 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW OPTICAL ALL ................................49
TABLE 4-6 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW POWER SUMMARY ........................50
TABLE 4-7 KEY FIELD DESCRIPTION OF THE INFORMATION DISPLAYED VIA SHOW POWER MANAGE ..........................51
TABLE 5-1 MEANINGS OF FAN INDICATOR ON THE PANEL OF THE FAN MODULE OF QSR-2920 ....................................52
Appendix Table
APPENDIX TABLE A-1 POWER CONSUMPTION AND DIMENSION...................................................................................62
APPENDIX TABLE A-2 ROUTER WEIGHT......................................................................................................................62
APPENDIX TABLE B-1 10BASE-T/100BASE-TX/1000BASE-T-RJ45...........................................................................63
APPENDIX TABLE B-2 1000BASE-X-SFP....................................................................................................................63
APPENDIX TABLE B-7 USB INTERFACE ATTRIBUTES ...................................................................................................64
APPENDIX TABLE B-8 CONSOLE PORT ATTRIBUTES .................................................................................................64
APPENDIX TABLE B-9 MICRO USB INTERFACE ATTRIBUTES .......................................................................................64
APPENDIX TABLE C-1 WORK TEMPERATURE REQUIREMENTS .....................................................................................65
APPENDIX TABLE C-2 WORK HUMIDITY REQUIREMENTS ............................................................................................65
APPENDIX TABLE C-3 DUST REQUIREMENT FOR EQUIPMENT ROOM............................................................................66
APPENDIX TABLE C-4 LIMITATIONS FOR THE HARMFUL GASES IN THE EQUIPMENT ROOM...........................................67
APPENDIX TABLE C-5 AC POWER SUPPLY REQUIREMENT ...........................................................................................68
APPENDIX TABLE D-1 GENERAL GROUNDING SPECIFICATIONS ...................................................................................70
APPENDIX TABLE D-2 ROUTER GROUNDING SPECIFICATION .......................................................................................70
APPENDIX TABLE D-3 GROUNDING SPECIFICATIONS FOR COMMUNICATION POWER....................................................71
APPENDIX TABLE D-4 THE LAYING SPECIFICATIONS OF THE SIGNAL CABLE ................................................................72
APPENDIX TABLE D-5 LAYING SPECIFICATIONS OF GROUND WIRE ..............................................................................72
APPENDIX TABLE D-6 PERMITTED FORCE OF THE FIBER .............................................................................................75
APPENDIX TABLE E-1 CONNECTION RELATIONSHIP OF THE CONSOLE CABLE ..............................................................77
APPENDIX TABLE E-4 CONNECTION TABLE OF THE GE ETHERNET RJ45 INTERFACE CABLE .......................................78
APPENDIX TABLE F-1 TOXIC AND HAZARDOUS SUBSTANCE NAME AND CONTENT ......................................................78

Installation Manual
1. Router Introduction 12
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1. ROUTER INTRODUCTION
QSR-2920 series router is a Gigabit Ethernet access centralized router independently
developed by QTECH, which includes seven product models: QSR-2920-04-AC, QSR-2920-04-
AC-AC, QSR-2920-14-AC, QSR-2920-14-AC-AC, QSR-2920-14P-AC, QSR-2920-24-AC, and QSR-
2920-24-AC-AC.
This chapter mainly describes the specifications of QSR-2920 series router.
1.1. QSR-2920-04-AC Appearance and Hardware
The dimension of QSR-2920-04-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-04-AC is shown in Figure 1-1, and the rear appearance
diagram is shown Figure 1-2.
Figure 1-1 The front appearance diagram of QSR-2920-04-AC
1. Reset button
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. USB interface
6. 1000Base-x SFP Ethernet COMBO
optical interface
7.1000Base-T Ethernet COMBO
electrical interface
8. Fan outlet
Figure 1-2 The rear appearance diagram of QSR-2920-04-AC
1. Grounding screw
2. Power switch
3. Power socket
4. Slots of MX9 interface sub card

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1. Router Introduction 13
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(S1-S4)
1.2. QSR-2920-04-AC-AC Appearance and Hardware
The dimension of QSR-2920-04-AC-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-04-AC-AC is shown in Figure 1-3, and the rear appearance
diagram is shown Figure 1-4.
Figure 1-3 The front appearance diagram of QSR-2920-04-AC-AC
1. Reset button
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. USB interface
6. 1000Base-X SFP Ethernet COMBO
optical interface
7. 1000Base-T Ethernet COMBO
electrical interface
8. Fan outlet
Figure 1-4 The rear appearance diagram of QSR-2920-04-AC-AC
1. Grounding screw
2. Power 1 switch
3. Power 1 socket
4. Power 2 socket
5. Power 2 switch
6. Slots of MX9 interface sub card
(S1-S4)

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1. Router Introduction 14
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1.3. QSR-2920-14-AC Appearance and Hardware
The dimension of QSR-2920-14-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-14-AC is shown in Figure 1-5, and the rear appearance
diagram is shown Figure 1-6.
Figure 1-5 The front appearance diagram of QSR-2920-14-AC
1. Reset button
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. USB interface
6. 1000Base-x SFP Ethernet COMBO
optical interface
7.1000Base-T Ethernet COMBO
electrical interface
8. GE port (GE0/0–GE0/23)
9. Fan outlet
Figure 1-6 The rear appearance diagram of QSR-2920-14-AC
1. Grounding screw
2. Power switch
3. Power socket
4. Slots of MX9 interface sub card
(S1-S4)
1.4. QSR-2920-14-AC-AC Appearance and Hardware
The dimension of QSR-2920-14-AC-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-14-AC-AC is shown in Figure 1-7, and the rear appearance
diagram is shown Figure 1-8.

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1. Router Introduction 15
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Figure 1-7 The front appearance diagram of QSR-2920-14-AC-AC
1. Reset button
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. USB interface
6.1000Base-x SFP Ethernet COMBO
optical interface
7.1000Base-T Ethernet COMBO
electrical interface
8. GE port (GE0/0–GE0/23)
9. Fan outlet
Figure 1-8 The rear appearance diagram of QSR-2920-14-AC-AC
1. Grounding screw
2. Power 1 switch
3. Power 1 socket
4. Power 2 socket
5. Power 2 switch
6.Slots of MX9 interface sub card (S1-
S4)
1.5. QSR-2920-14P-AC Appearance and Hardware
The dimension of QSR-2920-14P-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-14P-AC is shown in Figure 1-9, and the rear appearance
diagram is shown Figure 1-10.

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1. Router Introduction 16
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Figure 1-9 The front appearance diagram of QSR-2920-14P-AC
1. Reset button
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. USB interface
6.1000Base-x SFP Ethernet COMBO
optical interface
7.1000Base-T Ethernet COMBO
electrical interface
8. GE port (GE0/0–GE0/23), port 0-7
support POE
9. Fan outlet
Figure 1-10 The rear appearance diagram of QSR-2920-14P-AC
1. Grounding screw
2. Power 1 switch
3. Power 1 socket
4. Power 2 socket
5. Power 2 switch
6. Slots of MX9 interface sub card
(S1-S4)
1.6. QSR-2920-24-AC Appearance and Hardware
The dimension of QSR-2920-24-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-24-AC is shown in Figure 1-11, and the rear appearance
diagram is shown Figure 1-12.

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1. Router Introduction 17
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Figure 1-11 The front appearance diagram of QSR-2920-24-AC
1. USB interface
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. Reset button
6.1000Base-x SFP Ethernet COMBO
optical interface
7.Two 10/100/1000Base-T, two
Gigabit Combo ports
8. GE port (GE0/0–GE0/47)
Figure 1-12 The rear appearance diagram of QSR-2920-24-AC
1. Grounding screw
2. Power switch
3. Power socket
4. Slots of MX9 interface sub card
(S1-S4)
1.7. QSR-2920-24-AC-AC Appearance and Hardware
The dimension of QSR-2920-24-AC-AC is 442mm × 380mm × 44.2mm (W x D x H). The front
appearance diagram of QSR-2920-24-AC-AC is shown in Figure 1-13, and the rear appearance
diagram is shown Figure 1-14.

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1. Router Introduction 18
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Figure 1-13 The front appearance diagram of QSR-2920-24-AC-AC
1. USB interface
2. Function status indicator
3. USB CONSOLE port
4. RJ45 CONSOLE port
5. Reset button
6. 1000Base-x SFP Ethernet COMBO
optical interface
7.Two 10/100/1000Base-T, two
Gigabit Combo ports
8. GE port (GE0/0–GE0/47)
9: Fan outlet
Figure 1-14 The rear appearance diagram of QSR-2920-24-AC-AC
1. Grounding screw
2. Power 1 switch
3. Power 1 socket
4. Power 2 socket
5. Power 2 switch
6. Slots of MX9 interface sub card
(S1-S4)
1.8. Panel Specifications of QSR-2920 Series Router
The interface description is as shown in the following table:
Table 1-1 Interfaces on the front panel of QSR-2920 series router
Interface Name
Description

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Reset function button
Press it for 3s, and the system
restarts and restores the factory
setting
USB
One USB interface, USB2.0 standard
CONSOLE
Console port, one RJ45 interface,
asyn series port, default baud rate:
9600bps
Micro USB
Console port, one Micro USB
interface
GE0~GE3 port
WAN port
QSR-2920-04-AC: 4 COMBO
QSR-2920-04-AC-AC: 4 COMBO
QSR-2920-14-AC: 4 COMBO
QSR-2920-14-AC-AC: 4 COMBO
QSR-2920-24-AC: 2 COMBO +2 GE
QSR-2920-24-AC-AC: 2 COMBO +2 GE
QSR-2920-14P-AC: 4 COMBO
GE0/0~ GE0/47 port
LAN port
48 RJ45 interfaces,
10M/100M/1000M Ethernet port,
support auto crossing of data
receiving and sending
QSR-2920-04-AC: no
QSR-2920-04-AC-AC: no
QSR-2920-14-AC: 24 ports
QSR-2920-14-AC-AC: 24 ports
QSR-2920-24-AC: 48 ports
QSR-2920-24-AC-AC: 48 ports
QSR-2920-14P-AC: 24 ports
POE interface
QSR-2920-14P-AC: GE0~GE7
Support eight IEEE802.3AF interfaces
at most, or support four IEEE802.3AT
interfaces

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The meanings of the panel indicators are as follows:
Table 1-2 The meanings of the panel indicators
Name
Indicator
Color
Status Description
SYS
Green
Flash: indicates that the router works
properly.
Off/On: indicates the router works
abnormally.
PWR, P1, P2
Green
on: indicates that the system power
status is normal.
off: indicates the system power alarm
FAN
Green
on: indicates that the system fan
status is normal.
off: indicates that the system fan
status is alarm
POE
Green
On: The POE module of the device
works normally
Off: The POE module of the device
alarms
USB
Green
on: indicates that the USB device
works properly.
off: indicates that no USB device is
installed or the USB device is removed.
flash: indicates that the USB device is
transmitting data.
CONSOLE
RXD: green
Off: indicates that no data is
transmitted over the port.
Flash: indicates that data is
transmitted over the port.
TXD: yellow
GE
Green
on: indicates that the port is up.
off: indicates that the port is down.
Flash: indicates that data is
transmitted over the port.