EtherHub-24s

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply as explained in the previous section. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fan on back of the unit is unobstructed and running prior to shutdown. If you still cannot isolate the problem, then the internal power supply may be defective. In this case, contact your Accton distributor for assistance.

Installation

Verify that all system components have been properly installed. If one or more components appear to be malfunctioning (e.g., the power cord or network cabling), test them in an alternate environment where you are sure that all the other components are functioning properly.

Port and Cable Assignments

RJ-45 Port Description

RJ-45 station ports (MDI-X) can be attached to any devices which use a standard network interface (e.g., a workstation, server, bridge or router). Similar networking devices (e.g., another hub or switch) can be cascaded by connecting any of the RJ-45 station ports on the hub to a daisy-chain port (MDI) on the other device. Use 100W Category 3, 4 or 5 twisted-pair cable: unshielded or shielded (UTP/STP) cable for all RJ-45 connections on the front panel, and shielded (STP) cable for the stack ports on the rear panel. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).

Pin

Assignment

Assignment (Daisy-Chain

(Station Ports 1 - 24)

Port, other device)

 

1

Input Receive Data +

Output Transmit Data +

2

Input Receive Data -

Output Transmit Data -

3

Output Transmit Data +

Input Receive Data +

6

Output Transmit Data -

Input Receive Data -

4,5,7,8

Not Used

Not Used

Schematics for both straight and crossover twisted-pair cable are shown below.

 

Straight-Through

 

 

 

Crossover

 

(Hub)

(Adapter)

 

(Hub)

(Hub)

1

IRD+

1

OTD+

 

1

IRD+

1

IRD+

2

IRD-

2

OTD-

 

2

IRD-

2

IRD-

3

OTD+

3

IRD+

 

3

OTD+

3

OTD+

6

OTD-

6

IRD-

 

6

OTD-

6

OTD-

EMI Certification

FCC Class A (USA)

Warning: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the

Quick Installation Guide

limits for a Class A digital device pursuant to Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures are required to correct the interference.

You may use unshielded twisted-pair (UTP) for RJ-45 connections - Cat. 3 or greater.

Class A (Canada Department of Communications)

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus", ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur: "Appareils Numérques", NMB-003 édictée par le ministère des Communications.

Class A (Taiwan Bureau of Commodity Inspection)

VCCI Class A Compliance (Japan)

CE Mark Declaration of Conformance for EMI and Safety (EEC)

This is to certify that this product complies with ISO/IEC Guide 22 and EN45014. It conforms to the following specifications:

EMC:

EN55022(1988)/CISPR-22(1985)

class A

 

EN60555-2(1995)

class A

 

EN60555-3

 

 

IEC1000-4-2(1995)

4kV CD, 8kV AD

 

IEC1000-4-3(1995)

3V/m

 

IEC1000-4-4(1995)

1kV - (power line), 0.5kV - (signal line)

This product complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC.

Warning! Do not plug a phone jack connector in the RJ-45 port. This may damage this device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!

6

7

Page 6
Image 6
Accton Technology 24S manual Pin Assignment, Port, other device, Port and Cable Assignments, Straight-Through Crossover

24S specifications

Accton Technology, a prominent player in the networking and telecommunications industry, has introduced the 24S, an advanced Ethernet switching system designed to cater to the increasing demands of modern networking environments. This product stands out for its robust features, cutting-edge technologies, and exceptional performance characteristics, making it an ideal choice for businesses and data centers seeking reliable networking solutions.

The 24S is equipped with 24 high-speed Ethernet ports that support a range of connectivity options. These ports are capable of delivering speeds up to 10 Gbps, providing ample bandwidth for data-intensive applications and ensuring seamless connectivity for a multitude of devices. With a focus on scalability, the 24S can easily accommodate growing network requirements, making it suitable for both small and large enterprises.

One of the standout features of the Accton Technology 24S is its support for advanced Layer 2 and Layer 3 switching capabilities. This allows for efficient traffic management and optimized data flow through the network. The switch offers advanced routing features, including support for Static Routing, RIP, and OSPF, which enhance the ability to manage complex network architectures.

The 24S is also built with redundancy and reliability in mind. It includes powers supply options that ensure uninterrupted operation even in the event of power failures. Furthermore, the switch features hot-swappable components, allowing for easy upgrades and maintenance without downtime, which is critical in mission-critical environments.

Security is another priority for the 24S. The switch comes with built-in security features that include VLAN support, Access Control Lists (ACLs), and DHCP Snooping. These features provide enhanced protection against unauthorized access and ensure that sensitive data remains secure as it traverses the network.

Management and monitoring of the 24S are streamlined through its user-friendly interface. The switch supports a range of management protocols, including SNMP, RMON, and Web-based management, enabling network administrators to easily configure and monitor the system for optimal performance.

In summary, Accton Technology's 24S is a feature-rich Ethernet switch that combines high performance, scalability, and robust security features. With its advanced switching capabilities, redundancy options, and intuitive management tools, the 24S is well-equipped to meet the evolving needs of modern networking, ensuring businesses can operate efficiently and securely in an increasingly digital world. Whether for enterprise applications or data center operations, the 24S represents a significant advancement in networking technology.