Contents

Preface

11

Safety Symbols Used in this Document

12

Where to Find Web-based Guides

13

Contacting Allied Telesis

14

Online Support

14

Email and Telephone Support

14

Warranty

14

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14

Returning Products

14

Sales or Corporate Information

14

Management Software Updates

15

Chapter 1: Overview

17

Features

18

Front and Back Panels

19

Ports

20

Twisted Pair Ports

20

Uplink Combo Ports

20

Eco-friendly Switch

21

LEDs

22

Power LED

22

Port LEDs

23

Power Supply

24

Ethernet Switching Basics

25

MAC Address Table

25

Duplex Mode

26

Store and Forward

26

Back Pressure and Flow Control

26

Chapter 2: Installation

29

Reviewing Safety Precautions

30

Selecting a Site for the Switch

32

Cable Specifications

33

Twisted Pair Ports

33

SFP Ports

33

Unpacking the Switch

34

Installing the Switch on a Desktop

35

Installing the Switch on a Wall

36

Installing the Switch in a Rack

39

Installing an SFP Transceiver

42

Cabling and Powering On the Switch

44

Connecting the Twisted Pair Cables

44

Connecting the Fiber Optic Cables

45

Powering On the Switch

46

Starting a Management Session

47

Chapter 3: Troubleshooting

49

5

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Allied Telesis AT-GS950/48 manual Contents

AT-GS950/48 specifications

The Allied Telesis AT-GS950/48 is a robust and high-performance managed Gigabit Ethernet switch designed to meet the demands of modern networks. Ideal for small to medium-sized businesses and enterprise environments, this switch delivers flexible, reliable, and high-speed connectivity while ensuring ease of management.

One of the standout features of the AT-GS950/48 is its offering of 48 Gigabit Ethernet ports, allowing for extensive connectivity options. These ports support auto-negotiation and can automatically detect the highest speed supported by connected devices, ensuring optimal performance. The inclusion of 4 additional SFP (Small Form-factor Pluggable) ports enhances the flexibility of the network design. These SFP ports enable fiber connections, making it easy to extend the network over longer distances or connect to different types of media.

The switch supports advanced Layer 2 features, including VLAN (Virtual Local Area Network) support, which allows network administrators to segment network traffic for enhanced security and performance. The AT-GS950/48 also incorporates features such as Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) that prevent loops in the network and promote redundancy, ensuring uninterrupted service even in complex networking environments.

Additionally, the AT-GS950/48 supports Power over Ethernet (PoE), which enables the switch to deliver power to connected devices such as IP cameras, VoIP phones, and wireless access points through the Ethernet cable, reducing the need for additional power sources. This PoE capability allows for easier installation and flexibility in deploying network devices.

Allied Telesis places a strong emphasis on security, and the AT-GS950/48 reflects this commitment with features like IEEE 802.1X authentication, which secures network access by allowing only authorized users to connect. The switch also provides access control lists (ACLs) to enhance security by filtering traffic based on various criteria.

With built-in web-based management, the AT-GS950/48 enables administrators to easily configure, manage, and monitor the switch through an intuitive interface. It also supports SNMP (Simple Network Management Protocol) for integration into existing network management systems.

In summary, the Allied Telesis AT-GS950/48 combines high port density, advanced networking features, power delivery capabilities, and robust security measures, making it an excellent choice for organizations looking to build a resilient and efficient network infrastructure.