3Com 4510G manual Temperature/Humidity, Cleanness, Electromagnetic Susceptibility

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Temperature/Humidity

You must maintain a proper temperature and humidity in the equipment room. Long-term high humidity may lead to bad insulation, electricity leakage, mechanical property changes, and metal corrosion. However, if the relative humidity is two low, captive screws may become loose as the result of contraction of insulation washers and static electricity may be produced in a dry environment to jeopardize the circuits on the device. High temperature is the most undesirable condition, because it accelerates aging of insulation materials and can thus significantly lower reliability and service life of your switch.

For the temperature and humidity requirements of different models, refer to Table 1-1.

Cleanness

Dust is a hazard to the operating safety of your device. The dust accumulated on the chassis can be adsorbed by static electricity and result in poor contact of metal connectors or metal contact points. Especially when the indoor relative humidity is low, electrostatic adsorption is more likely to happen. This can not only shorten the service life of your device but also cause communications failures. The following table lists the dust concentration limit.

Table

2-1Dust concentration limit in the equipment room

 

 

 

 

 

 

 

 

 

Substance

Unit

 

 

Concentration limit

Dust

 

Particles/m³

 

≤ 3 x 104

(no visible dust on the tabletop

 

 

within three days)

 

 

 

 

 

 

 

 

 

 

Note: The dust particle size ≥ 5 μm.

Besides dust, there are rigorous limits on the content of harmful substances in the air that can accelerate the corrosion and aging of metals, such as chloride, acid, and sulfide in the equipment room, and the equipment room must be protected against ingression of harmful gases such as SO2, H2S, NH3, and Cl2. For specific requirements, see the following table.

Table 2-2Harmful gas limits in the equipment room

Gas

Maximum concentration (mg/m3)

SO2

0.2

 

 

H2S

0.006

 

 

NH3

0.05

 

 

Cl2

0.01

 

 

Electromagnetic Susceptibility

The operation of your switch can be affected by external interferences, such as conducted emission by capacitance coupling, inductance coupling, electromagnetic wave radiation, and common impedance (including the grounding system) coupling, and leads (power cords, signaling cables and output wires). To eliminate the interferences, pay attention to the following:

zAs the AC power system is a TN system, use a single-phase three-wire power socket with Protection Earth (PE) to effectively filter interference from the power grid.

2-2

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Contents 3Com Switch 4510G Family Environmental Statement Organization Chapter ContentsAbout This Manual ConventionsCreate Folder Related DocumentationObtaining Documentation Convention DescriptionTable of Contents Page Switch 4510G 24-Port Switch 4510G 48-Port OverviewIntroduction to Switch 4510G Switch 4510G 24-PortSwitch 4510G 48-Port Console Port SpecificationPorts 10/100/1000Base-T Ethernet PortCombo Port SFP PortModel SFP port 10/100/1000Base-T Ethernet port RPS Status LED LEDsSystem Status LED LEDsMark Status Description Port Mode LEDSeven-Segment LED System status Seven-segment LED Description10/100/1000Base-T Auto-Sensing Ethernet Port Status LED Status Description Port mode Ethernet port statusStatus System status Seven-segment LED Description SFP Port Status LED Optional Interface ModulesInterface Module Status LED CX4 Cable Connector type Length Short-haul Dual-Port 10 GE CX4 Interface ModuleDual-Port 10 GE XFP Interface Module Central Max Transceiver Connector Fiber TransmissionDistance One-port 10 GE XFP Interface Module Dual-Port 10 GE SFP+ Interface ModuleConnector Fiber Transmission Cable type Distance Transceiver Central MaxDescription of LEDs of Interface Modules Safety Precautions Installation SiteElectromagnetic Susceptibility Temperature/HumidityCleanness Gas Maximum concentration mg/mInstallation Tools Laser SafetyInstalling the Switch Installation Flow of the SwitchUse Front Mounting Brackets to Install a Switch Introduction to Mounting BracketUse Front Mounting Brackets and a Tray to Install a Switch Connecting the Grounding Cable Mounting the Switch on a WorkbenchWhen a Grounding Strip is Available Page Where a Grounding Conductor Can be Buried Other Installation SitesConnecting the AC Power Cord Connecting the Power CordsSwitch module Power supply mode Connection method 9Connect an AC power cord to a horizontal AC power socket Installing an Interface Module Connecting the RPS Power CordInstalling an Interface Card Removing an Interface ModuleInstalling Dedicated CX4/SFP+ Cable Removing Dedicated CX4/SFP+ CableInstallation Flow for an IRF Installing Switches for an IRFTask Remarks Drawing a Plan for an IRF with Switches For details, see Installing an Interface ModuleSelect the proper interface modules and cables Page Verifying the Installation 22Cable connections for an IRF with 1-port interface modulesRJ-45 Signal Direction DB-9 Setting up the Configuration EnvironmentConnecting the Console Cable Console CableSetting Terminal Parameters Connection Procedure4Set the serial port used by the HyperTerminal connection 6HyperTerminal window Checking before Powering on the Switch Booting the SwitchPowering on the Switch Describes the fields above 2Description on the fields Changing the Startup Mode Enter Y. The system displays the following information BUS Clock Speed 33MHz Memory Size 128MB Mac Address Page Boot Menu Loading Software Through the Boot ROM MenuIntroduction to Loading Modes Press Ctrl + B. The system displays Loading Software Using Xmodem Through Console Port Introduction to XmodemRequired ROM file effective2Properties dialog box Cccccccccccccccccc CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone Loading Software Using Tftp through Ethernet Port Loading host softwareLoad File name Loading Software Using FTP Through Ethernet Port Introduction to FTPDescription Loading Software Using FTP Loading Software Through CLILoading Software Using Tftp Update the Boot ROM program on the switchMissing Boot ROM Password Password Missing FailureMissing User Password Software Loading FailureRPS input Power Supply FailureAC input RPS&AC inputMark State System status LED Fan FailureSteady red Troubleshooting when there is no terminal display Configuration System FailureTroubleshooting when the terminal display is illegible

4510G specifications

The 3Com 4510G is a high-performance, stackable switch designed to meet the demands of modern enterprise networks. This switch is part of the 3Com switch family, known for its reliability, ease of use, and advanced features tailored for both small and medium-sized businesses, as well as larger enterprises.

One of the standout features of the 3Com 4510G is its high-density 10/100/1000 Mbps Gigabit Ethernet ports. With a configuration of up to 48 ports, this switch allows for efficient data transfer and connectivity among devices in the network. The switch also supports Power over Ethernet (PoE), enabling it to deliver power to PoE-enabled devices like IP phones, wireless access points, and security cameras, simplifying deployment and reducing cable clutter.

In terms of performance, the 3Com 4510G offers non-blocking architecture, which ensures that any port can handle its maximum throughput without causing bottlenecks. This switch is equipped with a high-performance switching capacity, allowing for seamless data flow and minimizing latency, which is critical for applications such as voice over IP (VoIP) and video conferencing.

The 3Com 4510G also provides advanced Layer 2 and Layer 3 routing capabilities. It supports features like VLANs, link aggregation, and multicast routing, which enhance network segmentation and optimize traffic management. The switch supports a comprehensive set of security features, including Access Control Lists (ACLs) and port security, to safeguard the network against unauthorized access.

Management is another strong suite of the 3Com 4510G. It supports Simple Network Management Protocol (SNMP) for effective network monitoring and management, as well as a user-friendly web interface and command-line interface (CLI) for easy configuration. Network administrators can easily troubleshoot and maintain the switch through these interfaces, ensuring optimal performance.

Additionally, the 3Com 4510G is designed with energy efficiency in mind, adhering to environmental standards, and thereby reducing operational costs over time.

With its robust feature set, advanced technologies, and high reliability, the 3Com 4510G switch stands out as an excellent choice for organizations looking to build a scalable and efficient network infrastructure. Its combination of performance, ease of management, and security makes it a valuable asset for meeting current and future networking needs.