Installation Preparation | 3Com 8807, 8814, 8810 specs

48CHAPTER 3: INSTALLATION PREPARATION

Wearing an To prevent the electronic components from being damaged by the electrostatic ESD-Preventive Wrist discharge (ESD), take ESD measures for the area where the switch is located and

Strap note the issues below:

■Always wear an ESD-preventive wrist strap when installing the parts, especially the electric printed circuit boards.

■Hold the circuit board by the edge. Do not touch the components or the electric printed circuit.

Take the following steps to use the ESD-preventive wrist strap.

Step 1: Wear the wrist strap on your wrist.

Step 2: Lock the wrist strap tight around your wrist to keep good contact with the skin.

Step 3: Insert it into the hole peculiar to ESD-preventive wrist strap in the chassis or attach it to the grounding screw of the chassis the alligator clips.

Step 4: Make sure that the ESD-preventive wrist strap is well grounded.

c CAUTION: For the sake of safety, check the resistance of the ESD-preventive wrist strap. The resistance reading should be in the range of 1 to 10 Mohm between human body and the ground.

Safety Some I/O modules of the Switch 8800 Family have optical interfaces. In operating Recommendations status, it is dangerous to stare into the open optical interface because the laser

against Laser being transmitted through the optical fiber produces a small beam of light which has very high power density and is invisible to human eyes; when a beam of light enters the eye, retina may be burned.

c CAUTION: The laser inside the optical fiber may hurt your eyes.

Examining Installation The Switch 8800 Family can only be used indoors. To ensure that the switch works

Sitenormally and to prolong its service lifetime, the following requirements should be met in terms of installation environment.

Temperature/Humidity To ensure the normal operation and service lifetime of a switch, proper Requirements temperature and humidity should be maintained in the equipment room.

Long-lasting high humidity in the equipment room is prone to poor insulation or even leakage of the insulating material. Sometimes, the mechanical performance deterioration, the rustiness and corrosion of some metal parts are also more likely to occur. If the relative humidity is too low, the captive screws may become loose due to the insulation washer contraction. Meanwhile, the electrostatic is likely to be produced in the dry environment, which will jeopardize the CMOS circuit of the switch. The higher the temperature, the greater the damage it will do to the switch. Long-lasting high temperature will speed up the aging process of the insulating materials, greatly lower the reliability of the switch, and therefore affect its service life seriously.

8810, 8814, 8807 specifications

The 3Com 8814, 8810, and 8807 are renowned products from the networking giant 3Com, which played a significant role in the evolution of networking technology in the early 1990s. These devices were instrumental during a time when organizations were transitioning from traditional communication systems to more sophisticated networking solutions.

The 3Com 8814 is a multi-port networking hub designed for small to medium-sized businesses. One of its main features includes a 10Base-T Ethernet capability, allowing for fast and reliable connectivity among various devices within a local area network (LAN). The 8814 supports up to 14 connections, providing scalability for growing businesses. The hub’s ease of use is notable; it features a plug-and-play design, which aids in quick setup without requiring extensive configuration. This plug-and-play functionality, alongside its robust physical and electrical performance, made the 8814 an appealing choice for organizations looking to enhance their networking infrastructure without significant investment.

Moving on to the 3Com 8810, this device is labeled as an intelligent network switch and ushered in advancements in network management and performance. A critical element of the 8810 is its ability to support both 10/100Base-T Ethernet connections, effectively allowing mixed-speed environments. Its built-in management features, enabled by 3Com's networking technologies, offered users the ability to monitor traffic flow, manage bandwidth allocation, and configure network settings through a user-friendly interface. This switch also incorporated advanced features like VLAN support, increasing security and segmentation within networks, which proved invaluable for sophisticated networking environments.

Lastly, the 3Com 8807 represents a more versatile and high-performance switch option suited for larger networks. This model features a stackable design that allows for a broader range of scalability and redundancy. It supports both fast Ethernet and Gigabit Ethernet, ensuring that organizations can expand their network speeds as needed. The 8807 includes features for enhanced fault tolerance and link aggregation, which bolsters reliability and performance under heavy traffic loads. Its integration with 3Com's Network Management Software provided administrators with unprecedented control over their networks, empowering them to optimize performance and troubleshoot issues effectively.

Overall, the 3Com 8814, 8810, and 8807 exemplified the company's commitment to innovation in networking technology, providing businesses with the tools necessary to develop efficient, scalable, and reliable network infrastructures. Each of these devices played a crucial role in shaping the landscape of networking, emphasizing ease of use, management capabilities, and performance.