Ruijie RG-MF2920U Series Installation and operating manual

RG-MF2920U Series Switches
Hardware Installation and Reference Guide
Document version: V2.0
Date: 2023-05-24
Copyright © 2023 Ruijie Networks

I
Copyright
Copyright © 2023 Ruijie Networks
All rights are reserved in this document and this statement.
Any reproduction, excerption, backup, modification, transmission, translation or commercial use of this
document or any portion of this document, in any form or by any means, without the prior written consent of
Ruijie Networks is prohibited.
Trademark and are owned by Ruijie Networks.
All other trademarks or registered trademarks mentioned in this document areowned by their respective owners.
Disclaimer
The products, services, or features you purchase are subject to commercial contracts and terms. Some or all
of the products, services or features described in this document may not be within the scope of your purchase
or use. Unless otherwise agreed in the contract, Ruijie Networks does not make any express or implied
statement or guarantee for the content of this document.
Due to product version upgrades or other reasons, the content of this document will be updated from time to
time. Ruijie Networks reserves the right to modify the content of the document without any notice or prompt.
This manual is for reference only. Ruijie Networks endeavors to ensure content accuracy and will not
shoulder any responsibility for losses and damages caused due to content omissions, inaccuracies or errors.

II
Preface
Intended Audience
This document is intended for:
Network engineers
Technical support and servicing engineers
Network administrators
Technical Support
Ruijie Networks website: https://www.ruijienetworks.com/
Technical support website: https://ruijienetworks.com/support
Case portal: https://caseportal.ruijienetworks.com
Community: https://community.ruijienetworks.com
Technical support mailbox: [email protected]
Live chat: https://www.ruijienetworks.com/rita
Conventions
1. Signs
The signs used in this document are described as follows:
Warning
An alert that calls attention to important rules and information that if not understood or followed can result in
data loss or equipment damage.
Caution
An alert that calls attention to essential information that if not understood or followed can result in function
failure or performance degradation.
Note
An alert that contains additional or supplementary information that if not understood or followed will not lead to
serious consequences.
Specification
An alert that contains a description of product or version support.
2. Note
The manual offers configuration information (including model, port type and command line interface) for
indicative purpose only. In case of any discrepancy or inconsistency between the manual and the actual version,
the actual version prevails.

Hardware Installation and Reference Guide Product Description
1
1 Product Description
The RG-PF2920 series switches are simplified optical Ethernet (SOE) switches released by Ruijie Networks for
all-optical network scenarios. They adopt a new hardware architecture to reduce noise, save energy, and can
be flexibly installed. They implement dual-network deployment. They are also designed with built-in power
supply, which is stable and reliable and suitable for indoor scenarios.
With Ruijie's modular OS, they are fit for the SOE solution, and implement lifecycle management, security control,
plug and play, and intelligent O&M through software-defined networking (SDN).
Table 1-1 Ports of the RG-MF2920U
Model
10M/100M/1000
M Base-T
Ethernet
Electrical Port
2.5G/1G
BASE-T
Ethernet
Electrical
Port
SFP
Port
2.5G
SFP
Port
SFP+
Port
Consol
ePort
RG-MF2920U-
4GT1MS
4
N/A
N/A
1
N/A
N/A
RG-MF2920U-
EXTENDULE
2
N/A
1
NA
N/A
N/A
Note
2.5G SFP ports are downward compatible with 1000Base-X ports.
2.5GBASE-T ports are downward compatible with 1GBase-T ports.
1000Base-T ports are downward compatible with 100Base-T and 10Base-T ports.
Table 1-2 Specifications of RG-MF2920U Series Switches
Model
PoE
Port
Maxim
um PoE
Power
Per
Port
Availa
ble
PoE
Power
Dimensions (W x
D x H)
Cooling
RG-MF2920U-
4GT1MS
N/A
N/A
N/A
160 mm x 86 mm x
28.8 mm (6.30 in. x
3.39 in. x 1.13 in.)
(including the
mounting bracket)
Natural heat
dissipation for
fanless design

Hardware Installation and Reference Guide Product Description
2
RG-MF2920U-
EXTENDULE
N/A
N/A
N/A
160 mm x 43.6 mm
x 22.7 mm (6.30 in.
x 1.72 in. x 0.89 in.)
Natural heat
dissipation for
fanless design
1.2 RG-MF2920U-4GT1MS
Table 1-3 Technical Specifications
Model
RG-MF2920U-4GT1MS
Supported Optical Module
See Appendix B.
The supported optical module types may update without prior
notification. Please contact Ruijie Networks for any updates.
SFP Port
2500Base-X and 1000Base-X supported
Power Module
Adapter input:
Rated voltage range: 100 V to 240 V
Maximum voltage range: 90 V to 264 V
Frequency: 50 Hz to 60 Hz
Adapter output:
Rated voltage: 12 V
Rated current: 1 A
EEE
Supported
PoE
Not supported
Maximum Power
Consumption
3.8 W
Operating Temperature
0ºC to 40ºC (32°F to 104°F) at the altitude between 0 m to 1,800 m (0
ft. to 5905.51 ft.)
At the altitude between 1,800 m (5905.51 ft.) and 5,000 m (16404.2
ft.), every time the altitude increases by 220 m (721.79 ft.), the
maximum temperature decreases by 1°C (1.8°F).
Storage Temperature
–40°C to +70°C (–40°F to +158°F)
Operating Humidity
10% to 90% RH (non-condensing)
Storage Humidity
5% to 95% RH (non-condensing)
Fan Module
Natural heat dissipation for fanless design

Hardware Installation and Reference Guide Product Description
3
Intelligent Temperature
Control
Temperature alarm and overheat protection
EMC Standard
GB/T 9254.1
Safety Standard
GB 4943.1
Dimensions (W x D x H)
160 mm x 86 mm x 28.8 mm (6.30 in. x 3.39 in. x 1.13 in.) (including
the mounting bracket)
Weight
0.46 kg (1.01 lbs) (including the package)
Warning
The RG-MF2920U-4GT1MS is a class-A product. In a domestic environment, this product may cause radio
interference in which case the user may be required to take adequate measures.
1.2.1 Product Appearance
The RG-MF2920U-4GT1MS provides 4 x 10/100/1000M Base-T Ethernet electrical ports and 1 x 1G/2.5G Base-
X optical port on the front panel, and the DC power input port on the bottom panel.
Figure 1-2 Appearance of the RG-MF2920U-4GT1MS

Hardware Installation and Reference Guide Product Description
4
1.2.2 Bottom Panel
Figure 1-3 Bottom Panel of the RG-MF2920U-4GT1MS
Note:
1. DC port input (12 V, 1 A)
2. 10/100/1000Base-T Ethernet port with auto-
negotiation
1.2.3 Rear Panel
Figure 1-4 Rear Panel of the RG-MF2920U-4GT1MS (Device Label Located on the Rear Panel)
Note:
1. 1G/2.5G Base-X port
2. Device label (nameplate)

Hardware Installation and Reference Guide Product Description
5
Note:
1. Button for restoring factory defaults
2. Console port (external serial port converter is
required)
3. Switch status LED
4. Optical port LED
Note
You can press the button for restoring factory defaults for at least 5s, so the configuration can be successful.
1.2.4 Power Supply
The RG-MF2920U-4GT1MS uses the adapter. The rated values are as follows:
Adapter input:
Rated voltage range: 100 V to 240 V
Maximum voltage range: 90 V to 264 V
Frequency: 50 Hz to 60 Hz
Adapter output:
Rated voltage: 12 V
Rated current: 1 A
1.2.5 Heat Dissipation
The RG-MF2920U-4GT1MS adopts natural heat dissipation to ensure that it works properly in a specified
environment. For the RG-MF2920U-4GT1MS, maintain sufficient clearance on both sides of the chassis and
above the chassis for air circulation. Dust the device every three months to avoid blocking ventilation openings
on the housing.
1.2.6 LEDs
LED
Panel
Identification
Status
Description
Status LED
PWR
Off
The switch is not powered on.

Hardware Installation and Reference Guide Product Description
6
Blinking
green
The switch is being initialized. If the LED
blinks continuously, a fault occurs.
Solid green
The switch works properly.
Solid yellow
A switch temperature alarm is generated.
Check the operating environment of the
switch.
Solid red
The temperature exceeds the threshold,
causing the system to restart.
Ethernet
electrical port
LED
G1-G4
Off
The port is not connected.
Solid green
The port is connected at the rate of
10/100/1000 Mbps.
Blinking
green
The port is sending or receiving data at the
rate of 10/100/1000 Mbps.
Optical port LED
SFP
Off
The port is not connected.
Solid green
The port is not connected at the rate of 1
Gbps or 2.5 Gbps.
Blinking
green
The port is sending or receiving data at the
rate of 1 Gbps or 2.5 Gbps.
Solid red
An error occurs when the optical module
sends signals.
Solid yellow
An error occurs when the optical module
receives signals.
1.3 RG-MF2920U-EXTENDULE
Table 1-4 Technical Specifications
Model
RG-MF2920U-EXTENDULE
Supported
Optical Module
1000base-X supported
See Appendix B.
The supported optical module types may update without prior notification. Please
contact Ruijie Networks for any updates.
SFP Port
1000Base-X supported

Hardware Installation and Reference Guide Product Description
7
Power Module
TYPE C (5 V) input:
Rated voltage: 5 V DC
Rated current: 0.6 A
EEE
Not supported
PoE
Not supported
Maximum Power
Consumption
Without PoE load: 2 W
Operating
Temperature
0ºC to 45ºC (32°F to 113°F) at the altitude between 0 m to 1,800 m (0 ft. to
5905.51 ft.)
At the altitude between 1,800 m (5905.51 ft.) and 5,000 m (16404.2 ft.), every
time the altitude increases by 220 m (721.79 ft.), the maximum temperature
decreases by 1°C (1.8°F).
Storage
Temperature
–40°C to +70°C (–40°F to +158°F)
Operating
Humidity
10% to 90% RH (non-condensing)
Storage Humidity
5% to 95% RH (non-condensing)
Fan Module
Natural heat dissipation for fanless design
Intelligent
Temperature
Control
Temperature alarm and overheat protection
EMC Standard
GB/T 9254.1
Safety Standard
GB 4943.1
Dimensions (W x
D x H)
160 mm x 43.6 mm x 22.7 mm (6.30 in. x 1.72 in. x 0.89 in.)
Weight
0.23 kg (0.51 lbs) (including the package)
Warning
The RG-MF2920U-4GT1MS is a class-A product. In a domestic environment, this product may cause radio
interference in which case the user may be required to take adequate measures.
1.3.1 Product Appearance
The RG-MF2920U-EXTENDULE provides 2 x 10/100/1000M Base-T Ethernet electrical ports and 1 x SFP port.
It provides 5 V power input through the TYPE-C port.

Hardware Installation and Reference Guide Product Description
8
Figure 1-5 Appearance of the RG-MF2920U-EXTENDULE
Figure 1-6 Rear Panel of the RG-MF2920U-EXTENDULE (Built-in GE-SFP-LX03-SM1310-BIDI-I Optical
Module)
Note:
1. Type-C port (5 V DC input)
2. SFP port
3. Switch status LED
4. SFP port LED

Hardware Installation and Reference Guide Product Description
9
1.3.2 Power Supply
The RG-MF2920U-EXTENDULE uses DC input. The rated values are as follows:
Rated voltage: 5 V DC (through the Type-C port)
Rated current: 0.6 A
1.3.3 Heat Dissipation
The RG-MF2920U-EXTENDULE adopts natural heat dissipation to ensure that it works properly in a specified
environment. For the RG-MF2920U-EXTENDULE, maintain sufficient clearance on both sides of the chassis
and above the chassis for air circulation. Dust the device every three months to avoid blocking ventilation
openings on the housing.
1.3.4 LEDs
LED
Panel Identification
Status
Description
Status
LED
PWR
Off
The switch is not powered on.
Solid green
The switch is powered on.
Ethernet
electrical
port LED
(switch
mode)
G1-G2
Off
The port is not connected.
Solid green
The port is connected at the rate of
10/100/1000 Mbps.
Blinking green
The port is sending or receiving data at the
rate of 10/100/1000 Mbps.
Optical
port LED
SFP
Off
The port is not connected.
Solid green
The port is connected.
Blinking green
The port is sending or receiving data.

Hardware Installation and Reference Guide Preparing for Installation
10
2 Preparing for Installation
2.1 Safety Precautions
Warning
To avoid personal injury and device damage, carefully read the safety precautions before you install the
RG-PF2920-DPBOX-P.
The following safety precautions may not cover all possible dangers.
2.1.1 Mounting
Avoid exposing the device to high temperatures, dust, or harmful gases. Do not install the device in
environments that are flammable or explosive. Keep the device away from sources of electromagnetic
interference (EMI), such as large radar stations, radio stations, and substations. Do not subject the device to
unstable voltage, vibrations, or excessive noise.
The installation site should be free from water flooding, seepage, dripping, or condensation.
Select the installation site considering communication network planning, technical requirements for
communication equipment, as well as factors such as climate, hydrology, geology, earthquake risk, electrical
power, and transportation.
Cut off all power supplies and unplug all power cords before mounting the switch in a rack or removing the
switch from a rack.
2.1.2 Handling
Avoid handling the device frequently.
Cut off all the power supplies and unplug all power cords before moving or handling the switch.
2.1.3 Electricity
Observe local regulations and specifications during electric operations. Only qualified personnel can perform
such operations.
Before installing the device, check whether there are hidden risks in the operating environment of the device.
For example, check whether the power socket is grounded and whether the ground is wet.
Determine the location of the indoor emergency power supply switch before installing the device. When an
accident occurs, immediately cut off all power supplies.
Do not place the device in a wet position, and keep the device away from liquid.
Warning
Improper or incorrect electric operations may cause a fire, electric shock, and other accidents, and lead
to severe and fatal personal injury and device damage.
Direct or indirect contact through wet objects with high voltage or mains power supply may be fatal.

Hardware Installation and Reference Guide Preparing for Installation
11
2.1.4 ESD
To prevent damage caused by static electricity, pay attention to the following points:
Keep the indoor installation environment clean and dust-free.
Keep the indoor humidity within a certain range.
2.1.5 Laser
The RG-MF2920U supports various types of optical transceivers available in the market, and these optical
transceivers are Class I laser products. Improper use of an optical transceiver may cause damage. Therefore,
pay attention to the following:
When a fiber transceiver works, ensure that the port has been connected with a fiber or covered by a dust
cap to keep out dust and prevent it from burning your eyes.
When an optical transceiver is working, do not look into its port after removing the optical fiber. Otherwise,
your eyes may be hurt.
Warning
Do not approach or look into any optical port under any circumstances. This may cause permanent damage to
your eyes.
2.1.6 Storage
To ensure proper working of the device, store the device in an environment based on the storage temperature
or humidity requirements in specifications.
Caution
If the device has been powered off for more than 18 months, power on the device and run it for consecutive 24
hours to activate the device.
2.2 Installation Site Requirements
The installation site must meet the following requirements to ensure the normal operation and prolonged service
life of the device.
2.2.1 Ventilation
The RG-MF2920U uses natural heat dissipation. Maintain sufficient clearance around the device for heat
dissipation.
2.2.2 Temperature and Humidity
To ensure the normal operationand service life of the switch, maintain anappropriate temperature and humidity
in the environment where the switch is used.
Prolonged exposure of the switch to a high relative humidity environment can result in compromised
insulation of the insulating material, potentially leading to electrical leakage. Additionally, the mechanical

Hardware Installation and Reference Guide Preparing for Installation
12
properties of materials may undergo alterations, and there is an increased risk of corrosion for metal
components.
Extended storage of the switch in a low relative humidity environment can result in the shrinkage of insulating
strips, leading to the loosening of fastening screws. Additionally, the occurrence of static electricity becomes
more likely, which poses a risk of damaging internal circuits of the switch.
Extended exposure of the switch to a high ambient temperature environment can result in amplified damage.
The elevated temperature accelerates the aging process of insulating materials, significantly diminishing the
performance and reliability of the switch while severely impacting its service life.
Table 2-1 Ambient Temperature and Humidity Requirements of the RG-MF2920U-4GT1MS
Operating Temperature
Relative Humidity
0°C to 40°C (32°F to 104°F) (wall mounting)
10% to 90% RH
Table 2-2 Ambient Temperature and Humidity Requirements of the RG-MF2920U-EXTENDULE
Operating Temperature
Relative Humidity
0°C to 45°C (32°F to 113°F) (desktop/wall/rack
deployment)
10% to 90% RH
0°C to 40°C (32°F to 104°F) (ELV box deployment)
2.2.3 Cleanliness
Dust poses a major threat to the device. The indoor dust takes on a positive or negative static electric charge
when falling on the switch, causing poor contact of the metallic joint. Such electrostatic adhesion may occur
more easily when the relative humidity is low, affecting the service life of the switch and causing communication
faults.
Table 2-3 Requirements for the Dust Content and Granularity in the Equipment Room
Dust
Unit
Maximum Quantity
Dust particles (diameter ≥ 0.5 μm)
Particles/m3
3.5 x 106
Dust particles (diameter ≥5 μm)
Particles/m3
3 x 104
Apart from dust, the salt, acid, and sulfide in the air of the equipment room must meet strict requirements.
These harmful substances will accelerate metal corrosion and component aging. Therefore, the equipment
room should be properly protected against the intrusion of harmful gases, such as sulfur dioxide, hydrogen
sulfide, nitrogen dioxide, and chlorine gas.

Hardware Installation and Reference Guide Preparing for Installation
13
Table 2-4 Limit Values for Harmful Gases
Gas
Average (mg/m3)
Maximum (mg/m3)
Sulfur dioxide (SO2)
0.3
1.0
Hydrogen sulfide (H2S)
0.1
0.5
Nitrogen dioxide (NO2)
0.5
1.0
Chlorine (CI2)
0.1
0.3
Note
The average value refers to the average value of harmful gases measured in one week. The maximum value
is the upper limit of the harmful gas measured in one week for up to 30 minutes every day.
2.2.4 Anti-interference
The switch is susceptible to external interference by capacitive coupling, inductive coupling, electromagnetic
waves, common impedance (ground) coupling, or conduction over power lines, signal lines, and output lines.
Pay attention to the following points:
The switch should be located far away from the high-power radio launch pads, radar launch pads, and high-
frequency large-current devices.
Use electromagnetic interference (EMI) shielding such as shielded interface cables to minimize interference
when necessary.
Route interface cables only indoors to prevent signal ports from being damaged byovervoltage or overcurrent
caused by lightning strikes.
2.2.5 EMI
Both external and internal EMI sources have an impact on the device or application system through mechanisms
such as capacitive coupling, inductive coupling, or electromagnetic waves.
EMI can arise through radiation or conduction, depending on the transmission path.
When energy, typically in the form of radio waves, emitted by one component reaches a sensitive component
through space, it is referred to as radiated interference. The source of interference can be a part of the affected
system or a completely electrically isolated unit. Conducted interference occurs when interference is transferred
from one unit to another through cables, which are typically electromagnetic wires or signal cables connecting
the source and the sensor. Conducted interference often disrupts the power supply of the device, but this can
be mitigated by a filter. Radiated interference may affect any signal path in the device, and is difficult to shield
against. EMI requirements are as follows:
Take interference prevention measures for the power supply system.
Keep the device far away from grounding or lightning protection devices for power equipment.
Keep the switch far away from high-power radio transmitters, radar launch pads, and high-frequency large-

Hardware Installation and Reference Guide Preparing for Installation
14
current devices.
2.3 Tools
Table 2-5 Tools
Common Tools
Phillips screwdriver, slotted screwdriver, copper and optical cables, bolts, diagonal
pliers, and cable ties
Special Tools
Anti-ESD tools
Meters
Multimeter
Note
The RG-MF2920U is delivered without a tool kit. The tool kit is customer-supplied.

Hardware Installation and Reference Guide Installing the Switch
15
3 Installing the Switch
Caution
Before reading Chapter 3 Installing the Switch, ensure that you have read Chapter 2carefully.
Verify that requirements described in Chapter 2have been met.
3.1 Installation Procedure
3.2 Before You Begin
Before installation, ensure that the following requirements are met:
The installation environment meets heat dissipation requirements.
The installation environment meets temperature and humidity requirements.
The power supply and required current are available at the installation site.
Ethernet cables have been deployed at the installation site.
The selected power supply meets system power requirements.
Before installing the tail fiber, ensure that the optical module and dust cap of the device have not been
Install switch correctly
Connect power supply
Connect cables
Bundle up cables
Check installation
End

Hardware Installation and Reference Guide Installing the Switch
16
unplugged, and keep the corresponding tail fiber connectors clean.
3.3 Mounting the RG-MF2920U
3.3.1 Precautions
Pay attention to the following points:
Connect the power cords of different colors to the corresponding cable terminals.
Ensure that the connector of the power cord is properly seated in the power port of the switch. After plugging
the power cord into the switch, secure the power cord with power cord retention clip.
Do not place anything on the top of the RG-MF2920U.
Maintain sufficient clearance around the device to ensure good air circulation. Do not stack the device.
Keep the RG-MF2920U away from high-power radio launch pads, radar launch pads, and high-frequency
large-current devices. Take electromagnetic shielding measures to minimize interference when necessary,
for example, use shielded interface cables.
Manage Ethernet cables with a distance of 100 m (328.08 ft.) indoors. Take surge protection measures if
they need to be routed outdoors.
3.3.2 Installation Steps
RG-MF2920U-4GT1MS installation:
(1) Use a screwdriver to remove the 86 mm junction box. (If there is no 86 mm junction box, ignore this step.)
(2) Install the mounting plate.

Hardware Installation and Reference Guide Installing the Switch
17
(3) Connect the optical fiber.
(4) Install the switch.
(5) Connect the power cord and Ethernet cable.