82CHAPTER 6: SWITCH MONITORING AND MAINTENANCE

4Hold the handle of the PSU and pull the PSU gently out of the chassis along the guides.

Figure 57 Remove and install the AC PSU

Installing an AC PSU

1Hold the handle of the PSU with one hand and the bottom of the PSU with another hand, and gently slide the PSU into the chassis along the guides until it is secure in the backplane.

2Fasten the screws at both sides of the PSU panel with a flathead screwdriver.

3Check that the power switch on the panel is in the “OFF” position and the clamp holding the power cord connector is pulled up.

4Insert the AC power cord included with the switch into the socket on the PSU.

5Pull the clamp down to hold the power cord.

Replacing and Cleaning This section describes how to clean and replace the Switch 8800’s AC PSU air filter. the PCU’s Air Filter

c CAUTION: We strongly recommend that you clean the air filter semimonthly to guarantee adequate ventilation.

Removing and cleaning the air filter of PSU

1Hold the air filter by the upper and lower edges with your index finger and thumb.

2Gently pull the air filter out of the chassis.

3Take the black air filter mesh out.

4Clean and dry (but do not rub) the mesh.

5Place the dry black mesh back into position.

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3Com 8814, 8807, 8810 manual Installing an AC PSU, Removing and cleaning the air filter of PSU

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.