3-12 CHAPTER 3: MAKING FMS 100-TX HUB CONNECTIONS

Operation LEDs Table 3-3 interprets the meaning of the hub operation LEDs.

Table 3-3 Hub Operation LEDs

LED

Color

Status

Meaning

 

 

 

 

FAN FAIL

Amber

ON

One or both of the two internal fans

 

 

 

have failed.

OVERTEMP

Amber

ON

The internal temperature exceeds 158° F

 

 

 

(70° C).

COLLISION

Green

ON

The segment is experiencing collisions.

CLS II (Class II)

 

OFF

The FMS 100-TX Hub does not support

 

 

 

Class II configuration. This LED is

 

 

 

nonfunctional.

CLS I (Class I)

Green

ON

The FMS 100-TX Hub supports Class I

 

 

 

configuration, which means that only

 

 

 

one repeater or hub stack can be used

 

 

 

between two end stations.

PWR (Power)

Green

ON

The hub is receiving power.

 

 

 

 

Unit Digital Display The front panel unit digital display (see Figure 3-11) provides a numeric designation for each component in a hub stack, including a Management Unit if one is present. Unit numbers are assigned dynamically as the units are plugged into the stack. The Management Unit ID is assigned after the Power-On Self-Test (POST) has run. The number 1 indicates the device that has no other unit above it; in other words, the hub (or Management Unit) that is on the top of the stack and connected by a hub expansion cable to the component immediately below it.

 

 

 

 

 

STATUS

 

 

UNIT

3C250-TX/Ι

®

 

 

 

 

 

 

 

 

12x

ACTIVITY

 

 

 

 

 

 

 

 

 

FAN FAIL

CLSII

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINK

 

 

 

 

 

 

 

 

 

OVERTEMP

CLSI

 

 

PARTITION

 

 

 

 

 

 

 

 

 

COLLISION

PWR

 

 

1

2

3

4

5

6

7

8

9

10 11 12 13

 

 

 

Figure 3-11 Unit Digital Display

Page 36
Image 36
3Com 100 TX manual FAN Fail

100 TX specifications

The 3Com 100 TX is a leading networking device that revolutionized Ethernet connectivity in both small and large enterprise environments. As a part of the 3Com family, this device was designed to provide reliable and efficient network performance, supporting the growing demands of networking technologies in the late 1990s and early 2000s.

One of the main features of the 3Com 100 TX is its compliance with the 100BASE-TX standard, enabling rapid data rates of up to 100 Mbps. This makes it ideal for high-speed local area networks (LANs) that require swift data transfer among connected devices. The device effectively accommodates the increasing bandwidth needs brought on by resource-heavy applications and the proliferation of internet services.

The 3Com 100 TX employs a Category 5 cabling system, which is crucial in achieving optimal performance. This cabling type allows for improved signal quality and reduced crosstalk, particularly over longer distances. By integrating this technology, the 3Com 100 TX can maintain a reliable point-to-point connection, ensuring minimal packet loss and superior data integrity.

Another significant characteristic of the 3Com 100 TX is its innovative design, which facilitates easy installation and integration into existing network infrastructures. The device features auto-negotiation capabilities, allowing it to automatically detect and adapt to the speed and duplex settings of connected devices. This plug-and-play functionality minimizes configuration time, making it user-friendly for both seasoned network engineers and those new to networking.

In terms of network management, 3Com incorporated various tools to help administrators monitor and troubleshoot network performance efficiently. The device includes diagnostic indicators such as Link and Activity LEDs, providing real-time feedback on connection statuses. This aids in quick identification of potential issues or downtime, ensuring network reliability.

Overall, the 3Com 100 TX remains a noteworthy component in the evolution of Ethernet technology. Its exceptional speed, flexible cabling compatibility, and user-oriented design make it an enduring choice for businesses seeking to enhance their network infrastructure. By investing in such devices, organizations can achieve optimal connectivity, laying a strong foundation for a robust digital ecosystem.