3Com Router 6000 Family

Chapter 2

Installation Manual

Preparing for Installation

The equipment room should meet the rigorous limits on salt, acid and sulfide to eliminate corrosion and premature aging of some parts, as shown in the following table.

Table 2-3Harmful gas limits in the equipment room

Gas

Max. (mg/m3)

SO2

0.2

H2S

0.006

NH3

0.05

Cl2

0.01

2.1.3 ESD Prevention

By design, the router is ESD preventative; but excessive buildup of static electricity can still damage the card circuitry and even the entire device.

On the communication network connected to the router, static electricity is primarily introduced from the outside electrical fields, such as the outdoor high-voltage power cabling and lightning, and from the inside system, such as indoor environment, floor material and the equipment frame. To avoid damage, ensure that:

z z z z

z

z

The equipment is well connected to earth. The equipment room is dust-proof.

Maintain adequate temperature and humidity.

Wear an ESD-preventive wrist strap and clothes when contacting the circuit board.

Place the removed circuit board upward on the ESD-preventive workbench, or into a static shielded bag.

Hold the circuit board by its edge when observing or moving it, avoiding direct contact with the elements on it.

2.1.4 Electromagnetic Compatibility

All interference sources, from the outside or from the inside of the router/application system, adversely affect the router in the conduction patterns of capacitance coupling, inductance coupling, electromagnetic wave radiation, and common impedance (including grounding system) coupling. To prevent the interference, do the following:

zTake effective measures against interference from the power grid.

zUse an earthing system or lightning protection grounding different from that for the power supply equipment and keep them as far as possible.

zKeep the router far away from strong power wireless launchers, radar launchers and high frequency and high-current equipment.

zUse electromagnetic shielding when necessary.

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3Com 3C13840, 3C13880 manual ESD Prevention, Electromagnetic Compatibility, Gas Max. mg/m

3C13840, 3C13880 specifications

The 3Com 3C13880 and 3C13840 are notable components within the realm of networking technology, primarily designed for enterprise-grade solutions. These devices belong to the 3Com family, which has long been recognized for its commitment to developing robust networking products tailored to facilitate efficient data transfers and improve connectivity across various platforms.

One of the standout features of the 3C13880 is its high-performance capabilities. This model supports advanced functions such as load balancing and fault tolerance, critical for maintaining optimum network performance in high-demand environments. Additionally, it supports various protocols, including Ethernet and Token Ring, making it versatile and adaptable to existing infrastructure. The device accommodates a wide range of network transmissions, ensuring seamless integration and operation within diverse network ecosystems.

In terms of connectivity, the 3C13880 is equipped with multiple ports, allowing for extensive device interconnectivity. This feature is particularly beneficial in large organization settings, where multiple devices, such as servers and workstations, need to communicate effectively. Coupled with high-speed data transmission rates, this model ensures minimal latency, enhancing overall network efficiency.

On the other hand, the 3C13840 is designed with a focus on cost-efficiency without sacrificing performance. This model provides essential networking features suitable for smaller business environments or those seeking budget-friendly options. It delivers reliable throughput and the ability to support a moderate number of users, making it ideal for small to mid-sized offices.

Both the 3C13880 and 3C13840 incorporate technologies that prioritize security and reliability. Features such as VLAN support and QoS settings help optimize network performance while ensuring the security and integrity of data are maintained. The devices also support management tools that allow administrators to monitor network performance in real time, facilitating quick troubleshooting and enhancing overall network management.

In summary, both the 3Com 3C13880 and 3C13840 devices stand out in networking technology by offering unique features tailored to different organizational needs. While the 3C13880 appeals to enterprises needing high performance and robust capabilities, the 3C13840 provides an accessible option for those requiring effective and budget-conscious networking solutions. The legacy of 3Com continues to be evident in these products, reflecting their innovative approach to addressing the dynamic demands of modern networking.