Connecting PGND Wire and Power Cord 59

Step 6: Align the mounting ears with the square holes in the posts of the cabinet, and fasten the screws in the holes to fix the switch in the cabinet.

Connecting PGND

Wire and Power Cord

Connecting PGND Wire

c CAUTION: For the safety of operators and equipment, the switch must be well grounded. The resistance reading between switch chassis and the ground must be less than 1 ohm.

Common grounding environment

Step 1: Remove the screw from the grounding hole in the switch chassis.

Step 2: Wear the connector of the PGND wire accompanied with the switch on the grounding screw.

Step 3: Insert the grounding screw into the grounding hole and screw it down.

Step 4: Connect the other end of the ground wire to the ground bar of the switch.

n Generally, the cabinets installed in equipment rooms are equipped with ground bar. In this case, you can connect the PGND wire of the switch to the ground bar for it.

Other grounding environment

Following are some methods for grounding the switch in different grounding environments that you are likely to encounter when installing the switch at different places.

n Rather than specifying the switch model or showing the actual location of the switch power input or grounding screw, the following figures are primarily intended for illustrating the switch grounding, either via grounding screw or power input, in specific grounding environments.

■If a ground bar is available, attach one end of the yellow-green PGND wire of the switch to a grounding bolt of the ground bar and fasten the captive nuts. Note that the fire main and lightning rod of a building are not suitable for grounding the switch. The PGND wire of the switch should be connected to the grounding device in the equipment room. (For the Switch 8800 Family, the grounding screw is on the rear panel. Connect it as illustrated in Figure 38).

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3Com 8810, 8807, 8814 manual Connecting Pgnd Wire and Power Cord, Connecting Pgnd Wire Common grounding environment
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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.
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