36CHAPTER 2: I/O AND APPLICATION MODULES

The 3C17527 module has two LEDs for each optical port on its panel.

Table 41 1000 Mbps optical port LEDs on the 3C17527 module

LED

Status

Meaning

 

 

 

LINK

OFF

No link is present.

 

Green

A link is present.

ACT

OFF

No packets are transmitted/received on the port.

 

Orange blinking

Packets are being transmitted/received on the port.

 

 

 

Matching Cable See Table 66 on page 46 for the XFP optical modules that are available for the 10 Gbps XFP optical ports on the 3C17527 module and their matching cable types, which you can select as required.

3C17528 48port 10/100/1000 BASE-T (RJ-45) Module

Specifications

This section provides specifications for the 48-port 10/100/1000 BASE-T (RJ-45) module (3C17528).

The 3C17528 module provides 48 10/100/1000 BASE-T auto-sensing PoE-capable RJ-45 ports.

Table 42 3C17528 module specifications

Item

Specification

 

 

CPU

MPC8245

BootROM

512 KB

SDRAM

128 MB

Physical dimensions (W x D)

366.7 x 340 mm (14.4 x 13.4 in.)

Number of ports

48

Connector

RJ-45

Rate

10/100/1000 Mbps

 

 

Panel and LEDs Figure 20 3C17528 module panel

The 3C17528 module has one LED for each port on its panel.

Table 43 1000 Mbps electrical port LEDs on the 3C17528 module

LED

Status

Meaning

 

 

 

LINK/ACT

ON

A link is present.

 

OFF

No link is present.

 

Blinking

Packets are being transmitted/received on the port.

 

 

 

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3Com 8807, 8814, 8810 3C17528 48port 10/100/1000 BASE-T RJ-45 Module, 3C17528 module has one LED for each port on its panel

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.