Contents

Preface

11

Document Conventions

12

Contacting Allied Telesis

13

Chapter 1: Overview

15

AT-DC2552XS Features

16

AT-DC2552XS Functions

16

AT-DC2552XS Physical Description

19

LEDs

23

SFP+ Slot LED

23

QSFP+ Slot LEDs

24

Power/Fault LED

25

NET MGMT LED

26

FAN Status LEDs

27

AC Power LED

28

Console Port

29

AT-PWR06 Power Supply Module

30

AT-FAN06 Fan Module

32

Chapter 2: Beginning the Installation

33

Installation Overview

34

Reviewing Safety Precautions

35

Planning the Installation

39

Unpacking the Switch

40

AT-DC2552XS Switch

40

AT-PWR06 Power Supply

41

AT-FAN06 Fan Module

42

Chapter 3: Installing the Switch and Modules

43

Installing the Switch on a Desktop

44

Installing the Switch in an Equipment Rack

45

Installing and Replacing AT-PWR06 Power Supply Module

48

Installing Power Supply Module

48

Replacing Power Supply Module

50

Installing Power Supply Blank Cover

51

Installing and Replacing AT-FAN06 Fan Module

52

Installing Fan Module

52

Replacing Fan Module

54

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

55

Installing SFP+ Transceivers and Cables

56

General Guidelines

56

Installing SFP+ Transceiver

57

Installing a SFP+ Direct Attach Cables

59

Installing QSFP+ Transceivers and Cables

61

Installing a QSFP+ Transceiver

61

Installing a QSFP+ MTHTP Cable

63

Chapter 5: Powering the Switch

65

Powering On the Switch

66

Turn Off the switch

68

5

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Allied Telesis AT-FAN06, AT-PWR06, AT-DC2552XS manual Contents