Reyee Ruijie RG-NBS5200 Series Installation and operating manual

Ruijie RG-NBS5200 Series Switches
RG-NBS5200-24GT4XS&RG-NBS5200-24SFP/8GT4XS&
RG-NBS5200-48GT4XS
Hardware Installation and Reference Guide
DocumentVersion:V1.1
Date: 2022-11-16
Copyright © 2023RuijieNetworks

Copyright
Copyright © 2023RuijieNetworks
All rights arereservedin this documentand this statement.
Without the priorwritten consentof Ruijie Networks,anyorganization orindividual shallnotreproduce,extract,
back up,modify, or propagate the content of this document in anymanneror in anyform, or translate it into other
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All other trademarks or registered trademarks mentioned in this document areowned bytheir respective owners.
Disclaimer
The products,services, or features you purchase are subjectto commercial contracts and terms, and some or all
of the products,services, or features describedin this documentmaynot be available for you to purchase oruse.
Except for the agreementinthe contract,RuijieNetworks makes noexplicitorimplicitstatementsorwarranties
with respectto the contentof this document.
The content of this documentwill beupdated from time to time due to product version upgrades or other reasons,
Ruijie Networks reserves therightto modifythe contentof the documentwithoutanynoticeor prompt.
This manualis designedmerelyas a userguide.RuijieNetworks has triedits bestto ensuretheaccuracyand
reliabilityof the content when compilingthis manual,butit does notguaranteethat the content of the manual is
completelyfree of errors or omissions,andall the information in this manual doesnotconstituteanyexplicit or
implicitwarranties.

Preface
Thank you for usingourproducts.This manualwill guideyou through theinstallation ofthe device.
This manualdescribesthefunctionaland physicalfeatures andprovides thedevice installation steps,hardware
troubleshooting,moduletechnicalspecifications,andspecifications andusageguidelines forcables andconnectors.
Audience
It is intended for the users who have some experience in installing and maintaining network hardware. At the same time, it
is assumed thattheusers arealreadyfamiliarwiththerelatedterms andconcepts.
Obtaining Technical Assistance
Ruijie Networks website:https://www.ruijienetworks.com/
Technical supportwebsite:https://www.ruijienetworks.com/support
Case portal:https://caseportal.ruijienetworks.com
Community:https://community.ruijienetworks.com
Technical supportemail:[e-mail]
Skype: [e-mail]
Related Documents
Document
Description
Configuration Guide
Describes networkprotocolsand related mechanismsthatsupportedbythe
product, with configurationexamples.
Command Reference
Describes the relatedconfigurationcommands,including command modes,
parameterdescriptions,usage guides,andrelatedexamples.
Conventions
1. Signs
The signs usedinthis documentaredescribedas follows.
Warning
An alert that calls attention to importantrules and information thatif not understoodorfollowed can resultin
data loss orequipmentdamage.
Caution
An alert that calls attention to essentialinformation thatifnot understoodorfollowedcanresultin function
failureor performancedegradation.
Note
An alert that contains additionalorsupplementaryinformationthatif not understoodorfollowed willnotleadto
serious consequences.

Specification
An alert that contains a descriptionofproductor version support.
2. Note
This manualprovides installationsteps,troubleshooting,technical specifications,andusageguidelines for
cables and connectors. It is intended for users whowant to understand the above and have extensive experience
in networkdeploymentandmanagement,andassumethatusers arefamiliarwithrelatedterms andconcepts.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
4
1 Product Overview
Ruijie RG-NBS5200 series switches aremainlyapplicable to the small and medium-sized enterprise (SME) networks to
provide services according to business needs to ensure transmission ofkeydata. The RG-NBS5200 series switches
provide various interfaces tomeet differentnetwork constructionscenarios.
RG-NBS5200 Series Switches
Model
10/100/1000
Base-T Ethernet Port
1000Base-XSFP
Port
10G SFP+ Port
Console Port
Power
Supply
RG-NBS5200-2
4GT4XS
24
N/A
4
N/A
Single
RG-NBS5200-2
4SFP/8GT4XS
8 (combo)
24
4
N/A
Single
RG-NBS5200-4
8GT4XS
48
N/A
4
N/A
Single
1000Base-Tis downwardcompatiblewith 100Base-TXand10Base-T.
The combo port consists of one 1000Base-XSFP port and one 10/100/1000Base-T Ethernet port. That is, onlyone
port of them is availableat one time.
1.1 RG-NBS5200-24GT4XS
Technical Specifications
Model
RG-NBS5200-24GT4XS
CPU
Built-inCPU, single-core processor,and800MHz
BOOTROM
N/A
Flash Memory
256MB
SDRAM
DDRIII 512 MB
Optical Module
The coppercable is not supported.See AppendixB.
The supported module typemay change at anytime. ConsultRuijieNetworksforthe latest
information.
SFP+ Port
10GBase-R
1000Base-X
Power Supply
AC input
Ratedvoltage range: 100 V to 240V
Maximum voltage range: 90V to 264 V
Frequency: 50/60 Hz
Ratedcurrent: 1.5 A
Input Leakage
≤3.5 mA

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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Current
EEE
Supported
PoE
Not supported
Power
Consumption
28 W
Temperature
Operating temperature:0°Cto 50°C (32°F to +122°F)
Storagetemperature:-40°Cto +70°C(-40°F to +158°F)
Humidity
Operatinghumidity:10% to 90% RH
Storagehumidity: 5% to 95%RH
Fan
Adaptive speedadjustment
Temperature
Alarm
Not supported
Certification
CE
Dimensions (W x
D x H)
440mmx 207.5mmx 43.6 mm(withthe front panel)
Weight
2.9 kg
Device operationina residentialenvironmentmaycause radio interference.
The device is notsuitableforuse in locations where children are likelyto bepresent.
Product Appearance
On the front panel,the RG-NBS5200-24GT4XS Ethernet switchprovides twenty-four 10/100/1000Base-TEthernet
ports andfour SFP+ ports.On the back panel,it provides anAC powerport.
Figure1-1 Appearanceof the RG-NBS5200-24GT4XS
Front Panel
Figure1-2 Front Panelof the RG-NBS5200-24GT4XS

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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5
Note:
1. Resetbutton
2. System status LED
3. 10/100/1000 Base-TEthernetport
4. 10GE SFP+ port
5. Nameplateonthe bottom of the device
The switchrestarts afterthe resetbutton is pressedforless than2seconds.
The switch restores the default factory settings after the reset button is pressed for more than 5 seconds (until the
status LEDblinks).
Back Panel
Figure1-3 Back Panelof the RG-NBS5200-24GT4XS
Note:
1. Power cordretentionclips
2. Three-holeAC powerreceptacle
3. Protective earthingterminal
The device relies onthe separateprotectiveearthingterminal.
The device installation mustbe permanentlygrounded.
The device must be intended to be used in a location with equipotential bonding (such as a telecommunication
center, a dedicated computerroom,ora restricted access area).
Heat Dissipation
The RG-NBS5200-24GT4XSadopts side-to-rearheatdissipation,therebyensuring normaloperation.Youmust
reserve10 cm distancespaceatboth sides andthebackplaneof the cabinetto allowairflow. It is recommendedthat
you cleanthe device onceevery 3 months to avoid dustfrom blockingvents.
Figure1-4 Flow Scheme ofHeat Dissipation

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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LED
LED
Panel Identification
State
Meaning
System status LED
Status
Off
The switchis not receiving power.
Blinking green
(0.5 Hz)
The switch is running,butis not connected to
RuijieCloud.
Blinking green (10
Hz)
The switchis beingupgradedorinitialized.
Solid green
The switchis connectedto RuijieCloud.
10/100/1000Base-T
Ethernet port status
LED
1–24
Off
The port is not connected.
Solid green
The port is connected ata rate of 10/100/1000
Mbps.
Blinking green
The port is receiving or transmitting traffic.
SFP+ port status
LED
25F–28F
Off
The port is not connected.
Solid green
The port is connected.
Blinking green
The port is receiving or transmitting traffic.
1.2 RG-NBS5200-24SFP/8GT4XS
Technical Specifications
Model
RG-NBS5200-24SFP/8GT4XS
CPU
Built-inCPU, single-core processor,and800MHz
BOOTROM
N/A
Flash Memory
256MB
SDRAM
DDRIII 512 MB
Optical Module
The coppercable is not supported.See AppendixB.
The supportedmoduletypemay changeat anytime. ConsultRuijie Networksforthe

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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latestinformation.
SFP Port
100Base-FX
1000Base-X
SFP+ Port
10GBase-R
1000Base-X
PowerSupply
AC input
Ratedvoltage range:100V to 240V
Maximum voltage range: 90V to 264 V
Frequency: 50/60 Hz
Ratedcurrent: 2 A
Input Leakage
Current
≤3.5 mA
EEE
Supported
PoE
Not supported
Power
Consumption
42 W
Temperature
Operating temperature:0°C to 50°C (32°F to +122°F)
Storagetemperature:-40°Cto +70°C (-40°F to +158°F)
Humidity
Operatinghumidity:10% to 90% RH
Storagehumidity: 5%to 95%RH
Fan
Adaptive speedadjustment
Temperature
Alarm
Not supported
Certification
CE
Dimensions (W x
D x H)
440mm x 267.5mm x 43.6 mm (withthe frontpanel)
Weight
3.35 kg
Device operationina residentialenvironmentmaycause radio interference.
The device is not suitable forusein locations wherechildrenarelikelyto bepresent.
Product Appearance
On the front panel,the RG-NBS5200-24SFP/8GT4XS Ethernetswitchprovides twenty-four SFP ports (eight Gigabit
comboports)andfour SFP+ ports. On the back panel,it provides an AC powerport.
Figure1-5 Appearanceof the RG-NBS5200-24SFP/8GT4XS

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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Front Panel
Figure1-6 Front Panel of the RG-NBS5200-24SFP/8GT4XS
6
Note:
1. Resetbutton
2. System status LED
3. 1000Base-XSFP port
4. Comboport
5. 10GE SFP+ port
6. Nameplateonthe bottom of the device
The switchrestarts afterthe resetbutton is pressedfor less than2seconds.
The switch restores the default factory settings after the reset button is pressed for more than 5 seconds (until the
status LEDblinks).
Back Panel
Figure1-7 Back Panelof RG-NBS5200-24SFP/8GT4XS
Note:
1. Power cordretentionclips
2. Three-holeAC powerreceptacle
3. Protective earthingterminal
The switchrestarts afterthe resetbutton is pressedforless than2seconds.
The switch restores the default factory settings after the reset button is pressed for more than 5 seconds (until the
status LEDblinks).

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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The device must be intended to be used in a location with equipotential bonding (such as a telecommunication
center, a dedicated computerroom,ora restrictedaccess area).
Heat Dissipation
The RG-NBS5200-24SFP/8GT4XS adopts fanfor heatdissipation,therebyensuringnormal operation.Youmust
reserve10 cm distancespaceatboth sides andthebackplaneof the cabinetto allowairflow. It is recommendedthat
you cleanthe device onceevery three months to avoid dustfrom blockingvents.
Figure1-8 Flow Scheme ofHeat Dissipation
LED
LED
Panel Identification
State
Meaning
System status LED
Status
Off
The switchis not receiving power.
Blinking green
(0.5 Hz)
The switch is running,butis not connected to
Ruijie Cloud.
Blinking green (10
Hz)
The switchis beingupgradedorinitialized.
Solid green
The switchis connectedto RuijieCloud.
10/100/1000Base-T
Ethernet port status
LED
17–24(comboports)
Off
The port is not connected.
Solid green
The port is connectedat a rate of 10/100/1000
Mbps.
Blinking green
The port is receiving or transmitting traffic.
SFP port status LED
1F–24F
Off
The port is not connected.
Solid green
The port is connected.
Blinking green
The port is receiving or transmitting traffic.
SFP+ port status
25F–28F
Off
The port is not connected.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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LED
Panel Identification
State
Meaning
LED
Solid green
The port is connected.
1.3 RG-NBS5200-48GT4XS
Technical Specifications
Model
RG-NBS5200-48GT4XS
CPU
Built-inCPU, dual-coreprocessor,and1GHz
BOOTROM
N/A
Flash Memory
256MB
SDRAM
DDRIII 1 GB
Optical Module
The coppercable is not supported.See AppendixB.
The supported module typemay change at anytime. ConsultRuijieNetworksforthe latest
information.
SFP+ Port
10GBase-R
1000Base-X
Power Supply
AC input
Ratedvoltage range: 100 V to 240V
Maximum voltage range: 90V to 264 V
Frequency: 50/60 Hz
Ratedcurrent: 2 A
Input Leakage
Current
≤3.5 mA
EEE
Supported
PoE
Not supported
Power
Consumption
46W
Temperature
Operating temperature:0°C to 50°C (32°F to +122°F)
Storagetemperature:-40°Cto +70°C (-40°F to +158°F)
Humidity
Operatinghumidity:10% to 90% RH
Storagehumidity: 5% to 95% RH
Fan
Adaptive speedadjustment
Temperature
Alarm
Not supported
Certification
CE
Dimensions (W x
D x H)
440mmx 267.5mmx 43.6 mm(withthe front panel)
Weight
3.6 kg
Device operationina residentialenvironmentmaycause radio interference.
The device is not suitable forusein locations wherechildrenarelikelyto bepresent.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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Product Appearance
On the frontpanel, the RG-NBS5200-48GT4XS Ethernet switch provides forty-eight 10/100/1000Base-T Ethernet ports
andfour SFP+ ports.On the back panel,it provides anAC powerport.
Figure1-9 Appearanceof the RG-NBS5200-48GT4XS
Front Panel
Figure1-10 Front Panel of the RG-NBS5200-48GT4XS
5
Note:
1. Resetbutton
2. System status LED
3. 10/100/1000 Base-TEthernetport
4.10GE SFP+ port
5. Nameplate on thebottom of the device
The switchrestarts afterthe resetbutton is pressedforless than2seconds.
The switch restores the default factory settings after the reset button is pressed for more than 5 seconds (until the
status LEDblinks).
The device must be intended to be used in a location with equipotential bonding (such as a telecommunication
center, a dedicated computerroom,ora restrictedaccess area).
Back Panel
Figure1-11 Back Panel of the RG-NBS5200-48GT4XS

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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Note:
1. Power cordretentionclips
2. Three-holeAC powerreceptacle
3. Protective earthingterminal
The device relies onthe separateprotectiveearthingterminal.
The device installation mustbe permanentlygrounded.
Heat Dissipation
RG-NBS5200-48GT4XSadopts side-to-rearheatdissipation,therebyensuringnormaloperation.Youmustreserve10
cm distancespace atbothsides and the backplane of the cabinet to allow airflow. It is recommended that you clean the
device onceevery three months to avoid dustfrom blockingvents.
Figure1-16 Flow Scheme of Heat Dissipation
When you installdevices,reserve1 RU (44.45cm) distancespace betweenneighboringdevices toallowairflow.
LED
LED
Panel Identification
State
Meaning
System status LED
Status
Off
The switchis not receivingpower.
Blinking green
(0.5 Hz)
The switch is running,butis not connected to
Ruijie Cloud.
Blinking green (10
Hz)
The switchis beingupgradedorinitialized.
Solid green
The switchis connectedto RuijieCloud.
10/100/1000Base-T
Ethernet port status
LED
1–48
Off
The port is not connected.
Solid green
The port is connected at a rate of 10/100/1000
Mbps.
Blinking green
The port is receiving or transmitting traffic.
SFP+ port status
LED
49F–52F
Off
The port is not connected.
Solid green
The port is connected.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Product Overview
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LED
Panel Identification
State
Meaning
Blinking green
The port is receiving or transmitting traffic.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Preparation Before Installation
15
2 Preparation Before Installation
2.1 SafetySuggestions
To avoid personalinjuryanddevice damage,carefullyread the safetysuggestionsbefore you installtheRG-NBS5200
series.
The followingsafetysuggestionsmaynotcover allpossibledangers.
2.1.1 Installation
Keepthe chassis cleanandfreefrom anydust.
Do not place the equipmentina walking area.
Do not wear loose clothes or accessories that may be hooked or caught by the device during installation and
maintenance.
Turn off allpowersuppliesandremovepowersockets andcables before installingoruninstalling the device.
2.1.2 Movement
Do not frequentlymovethe device.
When movingthe device, note the balanceand avoid hurtinglegs andfeetor strainingtheback.
Before movingthe device,turn off all powersupplies and dismantleallpowermodules.
2.1.3 Electricity
Observe local regulations and specifications when performing electric operations. Relevant operators must be
qualified.
Before installing the device, carefullycheck anypotential danger in thesurroundings, such as ungrounded power
supply,and damporwet groundor floor.
Before installing the device, find out the location of the emergency power supply switch in the room. First cut off
the powersupplyin the case of an accident.
Try to avoid maintainingtheswitchthatis poweredon alone.
Be sureto make a carefulcheck before you shutdownthe powersupply.
Do not place the device ina damplocation.Donot let anyliquid enterthe chassis.
Any nonstandard and inaccurate electric operation may cause an accident such as fire or electrical shock, thus
causing severeevenfatal damages to humanbodiesand the device.
Direct or indirecttouch through a wet object on high-voltageand mains supplymaybringa fatal danger.
If a power supply system is equipped with a leakage protector (leakage current switch or breaker), the rated
leakage action current of each leakage protector is twice greater than the maximum leakage current of all the
power supplies in the system. For example, if a system is equipped with twenty identical power supplies, the
leakage current ofeach power supplyis equal to or less than 1.5 mA, and the total leakage current ofthe system

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Preparation Before Installation
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is 30 mA. A leakage protector with 30 mA rated action current supports less than ten power supplies (that is,
action current of the leakage protector/2/maximum leakage current of each powersupply= 30/2/1.5 = 10). In other
words, the leakage protector with 30 mA rated action current supports no more than ten power supplies. In this
case, the twenty power supplies in the system require at least two leakage protectors with 30 mA rated action
current and each leakage protectorsupports ten power supplies. If powersupplies ina system differ inmodels, the
rated leakage action currentof each leakage protectordivided bytwo is greater than thesum ofmaximum leakage
current of all the powersupplies. The rated leakage non-action current of a leakage protectormust be 50% of the
leakage action current. The leakage protector with 30mArated leakage action currentis used as an example.The
rated leakage non-action current must be 15 mA. When the leakage current falls below 15 mA, the protector
should not act. Otherwise, misoperation may easily occur due to high sensitivity and thus the leakage protector
trips,devices are poweredoff,and services areinterrupted.
To guarantee personal safety, the rated leakage action current of each leakage protector in the system must be
equal to or less than 30 mA(human bodysafety current is 30 mA). When twice ofthe total leakage current of the
system is greaterthan30 mA, the system mustbeequipped withtwoor moreleakageprotectors.
For details of the leakagecurrentvalue of each powersupplymodel,see Chapter 1Product Overview.
2.1.4 ESD
To prevent ElectronicStatic Discharge(ESD),pay attentionto the following points:
Propergroundingofgroundingscrews onthebackpanelof the device, andthree-wiresingle-phasesocketwith
protective earth wire (PE) usedas the AC powersocket.
Indoordustprevention
Properhumidityconditions
2.1.5 Laser
The RG-NBS5200 series switches support varying models of optical modules (Class I laser products) sold on the
market.Improperuseof opticalmodules maycausedamage. Therefore,payattention to the followingpoints:
When a fiber transceiver works, ensure that the port has been connected to an optical fiber or is covered with a
dustcap, to keep outdustand avoid burning your eyes.
When the optical module is working, do not pull out the fiber cable or look directly into the transceiver. The
transceiveremits laserlightthatmayhurt your eyes.
Do not stare into any optical port under any circumstances because this may cause permanent damage to your
eyes.
2.1.6 Battery
The RG-NBS5200 series switches support the button cell battery. Improper use of battery may cause damage.
Therefore, payattention to the followingpoints:
There is the potential risk of fire or explosion or device damage if the battery of an incorrect type is replaced.
Replace thebattery only withthe sametype.
Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, can result in an
explosion.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Preparation Before Installation
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The battery may experience an extremely high or low temperature or a low air pressure at a high altitude during
use,storage ortransportation.
Leaving the batteryin an extremelyhigh temperature and/or low air pressure surrounding environment mayresult
in anexplosionorthe leakageof flammable liquidorgas.
2.2 InstallationSite Requirements
The installationsite mustmeetthefollowing requirementtoensure normal workingand aprolongeddurablelife ofthe
switch.
2.2.1 Ventilation
For the RG-NBS5200 series,asufficientspace (atleast10 cm distancefrom both sides and theback planeof the
cabinet)shouldbe reservedat the ventilationopenings toensurenormal ventilation.After various cables have been
connected,they shouldbe arranged intobundles orplacedonthecablingrack to avoid airflowblocking.It is
recommended thatyou cleanthe switchatregularintervals (likeonce every three months). Inparticular,avoid dust
from blockingthe screenmeshonthebackof the cabinet.
2.2.2 Temperature and Humidity
To ensure the normal operation and prolong theservice lifeofthe RG-NBS5200 series switch, keep proper temperature
andhumidityin the equipmentroom.
If the equipment room has temperature and humiditythat do not meet the requirements for a long time, the equipment
maybe damaged.
In an environment with a high humidity, insulating materials may have bad insulation or even leaking electricity.
Sometimesthematerialsmaysufferfrom mechanicalperformancechangeandmetallicparts maygetrusted.
In an environment with a low humidity, insulating strips maydryand shrink. Static electricitymayoccur easilyand
endangercircuits onthedevice.
In an environment with a high temperature, the router is subject to more serious harm. Its performance may
degrade significantlyandvarious hardwarefaults mayoccur.
The ambient temperature and humidity of the RG-NBS5200 series switch must meet the requirements listed in Table
2-1.
Table2-1 Temperatureand HumidityRequirements ofthe RG-NBS5200 Series Switch
Temperature
Relative Humidity
0°C to 50°C (32°F to 122°F)
10%to 90%
The requirements for thesampling site ofthe temperature and humidityin the operating environment ofthe device
are as follows:
There is noprotective plate at the front or back of the rack.
The vertical heightis 1.5 m above the floor.
The distancefrom thefront panelof the device is 0.4 m.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Preparation Before Installation
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2.2.3 Cleanness
Dust poses a severe threat to the running of the device. The indoor dust falling on the device maybe absorbed bythe
static electricity, causing bad contact of the metallic joint. Such electrostatic absorptionmayoccur more easilywhen the
relative humidity is low. This affects the device lifecycle and causes communication faults. Table 2-2 lists the
requirementsforthe dustcontentandgranularityin the equipmentroom.
Table2-2 Requirements forthe DustContentand Granularityin the EquipmentRoom
Apart from dust, the salt,acidand sulfidein
Dust
Unit
Density
Diameter ≥0.5 μm
Particles/m3
≤3.5 x 106
Diameter ≥5 μm
Particles/m3
≤3 x 104
Apart from dust, the salt, acid, and sulfide in the air in the equipment room must also meet strict requirements. This is
because such poisonous substances may accelerate the corrosion of the metal and the aging of some parts. The
equipment room should be protected from the intrusion of harmful gases such as sulfur dioxide, sulfured hydrogen,
nitrogen dioxide,and chlorine.Table2-3 lists therequirements.
Table2-3 Requirements forHarmful Gases intheEquipmentRoom
Gas
Average (mg/m3)
Maximum (mg/m3)
SO2
0.3
1.0
H2S
0.1
0.5
NO2
0.5
1.0
Cl2
0.1
0.3
The average and maximum values aremeasured for a week. Theswitch cannot be placed in theenvironment with
the maximum densityfor over 30minutes every day.
2.2.4 Interference Resistance
The switch is vulnerable to external interface caused bycapacity coupling,inductance coupling, electromagnetic wave
radiation, common impedance (including grounding system) coupling, and conducting wires (including power cords,
signal andoutputwires). Therefore,note the following points:
The AC power supplying system is the TN system. The single-phase three-wire socket with protecting grounding
must be used as the socket for the power supply to enable the device’s upper filter circuit to effective filte r the
powerinterface.
The switch should be far from high-power radio transmitting stations, radar stations and high-frequency and
large-currentdevices.
Electromagnetic shielding methods should be applied when necessary, such as using the shielded cable as the
interfacecable.
Cables must be connected to interfaces inside the room to prevent damage to the device’s signal ports caused by
over-voltage and over-current generated bythunderand lightning.

Ruijie RG-NBS5200 SeriesSwitchesHardware Installation andReferenceGuide Preparation Before Installation
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2.2.5 Grounding
A good grounding system is the basis for stable and reliable operation of the device, preventing lightning strokes and
resisting interference. Carefully check the grounding conditions at the installation site according to the grounding
requirements,andperform groundingoperationsproperlyas required.
Effective grounding of the switch guarantees lightning protection and interference resistance. Therefore, connect
the groundinglineofthe switchproperly.
SafetyGrounding
The device using AC power supply must be grounded by using the yellow/green s afety grounding cable. Otherwise,
when the insulating resistance decreases the power supply and the enclosure in the equipment, electric shock may
occur.
The building must provide the protective grounding connection to ensure that the device is connected to the
protectionlocation.
The installation and maintenance personnel must check whether the A.C. socket is well connected to the
protection location ofthe building. If not,use a protective grounding wire to connect the grounding end of the A.C.
socketto the building's protection location.
The power supplysocket must be installed in a place that is near to the device and where users can operate the
device easily.
Before device installation,ensurethatthe ground is connectedatfirst anddisconnectedfinally.
The sectionalareaofthe protective groundingwireshouldbeatleast0.75mm2(18 AWG).
Usethe 3-corepowersupplyline. The sectionalarea ofeachpin shouldbeatleast0.75 mm 2or 18AWG.
Lightning Grounding
The surge protection system of a facility is an independent system that consists of the lightning rod, down conductor,
and connector to the grounding system, which usually shares the power reference ground and ground cable. The
lightning dischargegroundis targetedforthe facility.
EMC Grounding
The grounding required for EMC design includes theshielding ground, filter ground,noise and interferencesuppression,
and level reference.All the above constitute the comprehensive grounding requirements. The resistance of earth wires
should be less than 1 Ω. The RG-NBS5200 series switch back plane is reserved with one grounding pole, as shown in
Figure2-1.
Figure2-1 Groundingof the RG-NBS5200