22CHAPTER 1: PRODUCT OVERVIEW

Table 15 Management 10Base-T/100Base-TX port specifications

Item

Description

Max. transmission segment over the selected medium

Service

100 m (328 ft.) over the category-5 twisted pair cable (crossover cable is required).

System program upgrade and network management

The following table describes the status LEDs for the management 10Base-T/100Base-TX port.

Table 16 Status LEDs for the management 10Base-T/100Base-TX port

LED

Status

 

 

 

 

LINK

OFF

No link is present.

 

ON

A link is present.

ACT

OFF

No packets are transmitted/received on the port.

 

Blinking

Packets are being transmitted/received on the port.

 

 

 

RS232/485 port

The RS232/485 port uses RJ-45 connector, for connecting external PoE power frame when supported and monitoring its status.

Table 17 RS232/485 port specifications

Item

Description

 

 

Connector

RJ-45

Number of ports

One RS 232 port and one RS485 port

Service

The port for monitoring and communication with the external subsystem,

 

such as external PoE power supply module

 

 

Console port

The Console port uses an RJ-45 connector. It can be connected to a background terminal for system debugging, maintenance, management, and host software loading.

Table 18 Console port specifications

Item

Description

 

 

Connector

RJ-45

Standard

Asynchronous EIA/TIA-232

Baud rate

9600 bps (default)

Transmission

15 m (49 ft.)

segment

 

Service

Connects a serial port of a local PC and runs terminal emulation on the

 

PC.

 

 

n You can choose your own baud rate for the Console port.

AUX port

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3Com 8814, 8807, 8810 manual AUX port, Status LEDs for the management 10Base-T/100Base-TX port

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.

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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.