3Com 10/100BASE-T manual Interface RS-232 Port Specifications

Page 17

 

 

Technical Specifications A-3

Interface RS-232 Port

 

 

Specifications

 

 

 

 

Electrical specification

RS-232-C (EIA/TIA-232-E standard)

 

 

 

 

 

Connector

RJ-45, 8 position modular jack

 

 

 

 

 

Configuration

Data Terminal Equipment (DTE)

 

 

 

 

 

Transmission method

Unbalanced RS-232

 

 

 

 

 

Transmission rate

115,200 bps maximum

 

 

 

 

Ethernet 10Base-T/100 Base-TX Ports

 

 

 

 

Data Transfer Rate

10/100 Mbps Auto-negotiated

 

 

 

 

Connector

8-position modular jack, Stewart 88-360808 or

 

 

equivalent

 

 

 

 

Accessing Scheme

CSMA/CD (Carrier Sense Multiple Access with Collision

 

 

Detection)

 

 

 

 

Topology

Star Wired Hub (using multiport repeater)

 

 

 

 

Maximum Nodes

Limited only by repeater used

 

 

 

 

Transmission medium

Unshielded Twisted Pair (UTP) cable type CAT3 or CAT5

 

 

(CAT5 recommended) for 10Base-T applications, CAT5

 

 

for 100Base-TX

 

 

 

 

Network Lobe Distance

100 meters (328 ft.) suggested maximum (Longer

 

 

cabling can be used at the expense of reduced receiver

 

 

squelch levels)

 

 

 

 

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Contents PCI Dual 10/100Base-T Ethernet PCI Dual 10/100Base-T Ethernet 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Overview Conventions DocumentIcon Description Convention DescriptionCompatibility Product DescriptionProduct Installation Tools InstallationInstallation ProcedureDo this Installation Procedure 4CHAPTER 2 Installation Installation Procedure Callout Network Interface Card CablingRS-232 EthernetCallout Description Accessing the UserInterface Color Description/Trouble Clearing Trouble ClearingCertification EMC Technical SpecificationsInterface RS-232 Port Specifications Relative Humidity TemperatureInches Centimeters Length Width Height

10/100BASE-T specifications

3Com 10/100BASE-T is a networking technology that revolutionized data transmission in local area networks (LANs) by combining speed and cost-effectiveness. Introduced in the late 1990s, it emerged as a standard for Ethernet networking, supporting both 10 Mbps and 100 Mbps data rates over twisted-pair cabling. This flexibility made it an attractive solution for businesses seeking to upgrade their network infrastructure without significant investment.

One of the main features of 3Com 10/100BASE-T is its use of Category 5 (Cat 5) cabling, which enables efficient data transmission. This type of cabling is designed to handle the higher frequency signals prevalent in 100BASE-T networks. The technology also supports auto-sensing capabilities, allowing devices to detect and adjust to the best possible connection speed. This ensures compatibility with legacy 10BASE-T devices while enabling faster connections with modern equipment.

Another significant characteristic is its utilization of the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol. This protocol is crucial for managing data packet collisions in the network, ensuring that data is transmitted smoothly and efficiently. By managing the quality of the data stream, 3Com 10/100BASE-T maintains robust performance even in environments with multiple users accessing the network simultaneously.

3Com also prioritized ease of installation and implementation with their 10/100BASE-T solutions. The technology relies on straightforward plug-and-play functionality, allowing network administrators to quickly set up and configure systems without extensive technical expertise. This ease of use contributed significantly to the widespread adoption of the technology across various industries.

Energy efficiency is another notable aspect of 3Com 10/100BASE-T technology, which aligns with the growing focus on sustainable networking solutions. The technology's design minimizes power consumption, making it a more environmentally friendly option for businesses.

In summary, 3Com 10/100BASE-T technology represents a significant evolution in network communication. Its blend of speed, compatibility, and cost-effectiveness, combined with ease of installation and energy efficiency, has kept it relevant in networking discussions even as newer technologies emerge. By balancing performance and practicality, it has laid the groundwork for the high-speed networks we rely on today.