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53-1002267-01
18 March 2011

PowerConnect B-FCX
Switch
Hardware Installation Guide

Information in this document is subject to change without notice.
© 2011 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo,, Dell OpenManage , and PowerConnect are trademarks of Dell Inc.; Microsoft,
Windows, and Windows Server are either trademarks or registered trademarks of Microsoft Corporation in the United States and/
or other countries.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or
their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Regulatory Model Codes: FCX624-S, FCX648-S, FCX624-E, FCX624-I, FCX648-E, and FCX648-I

Contents

About This Document
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Supported hardware and software . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Text formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Command syntax conventions . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Notes, cautions, and danger notices . . . . . . . . . . . . . . . . . . . . . viii
Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Getting technical help or reporting errors . . . . . . . . . . . . . . . . . . . . . . ix
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Chapter 1

Product Overview
Hardware features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chapter 2

Installing the PowerConnect B-FCX Switch
Unpacking the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installation precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lifting precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preparing the installation site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cabling infrastructure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installing the device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Desktop installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Rack mount installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Connecting devices in a stack. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Powering on the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Attaching a PC or terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Wiring map for serial cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Installing and replacing a power supply unit. . . . . . . . . . . . . . . . . . . 26
Installing or replacing fan trays on PowerConnect B-FCX624s and
PowerConnect B-FCX648s devices . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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Installing or replacing fan trays on PowerConnect B-FCX624 and
PowerConnect B-FCX648 devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Installing an optional module on PowerConnect B-FCX624s or
PowerConnect B-FCX648s devices . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Installing an optional module in PowerConnect B-FCX624 and
PowerConnect B-FCX648 devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Chapter 3

Checking Network Devices and Testing Connectivity
Assigning permanent passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Setting passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Recovering from a lost password . . . . . . . . . . . . . . . . . . . . . . . . 34
Configuring IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Devices running Layer 2 software . . . . . . . . . . . . . . . . . . . . . . . 35
Devices running Layer 3 software . . . . . . . . . . . . . . . . . . . . . . . 36
Connecting network devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cable specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Connecting to Ethernet or fast Ethernet hubs . . . . . . . . . . . . . . 39
Connecting to workstations, servers, or routers . . . . . . . . . . . . 40
Connecting a network device to a fiber port . . . . . . . . . . . . . . . 40
Testing connectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Pinging an IP address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Observing LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Tracing a route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Troubleshooting network connections . . . . . . . . . . . . . . . . . . . . . . . . 45
Using Virtual Cable Testing to diagnose a cable . . . . . . . . . . . . 46
Digital optical monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Chapter 4

Managing the PowerConnect B-FCX Hardware
Managing temperature settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Using the temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Removing MAC address entries . . . . . . . . . . . . . . . . . . . . . . . . . 53
Displaying PowerConnect B-FCX CPU usage . . . . . . . . . . . . . . . . . . . 53
Hardware maintenance schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Replacing a copper or fiber optic module . . . . . . . . . . . . . . . . . . . . . 54
Removing a copper or fiber optic module . . . . . . . . . . . . . . . . . 54
Cabling a fiber optic module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Cleaning the fiber optic connectors . . . . . . . . . . . . . . . . . . . . . . 55

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Chapter 5

Hardware Specifications
Hardware specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Physical dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . 57
Environmental considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Cooling system and fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Pinouts and signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Cable specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
AC power supply specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 63

Chapter 6

Troubleshooting
Diagnosing switch indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Power and cooling problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
In-band access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Appendix A

Regulatory Statements
USA (FCC CFR 47 Part 15 Warning) . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Industry Canada statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Europe and Australia (CISPR 22 Class A Warning) . . . . . . . . . . . . . . 67
Japan (VCCI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Japan power cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Russia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Regulatory compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Appendix B

Cautions and Danger Notices
Cautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Danger notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

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About This Document

Audience
This document is designed for system administrators with a working knowledge of Layer 2 and
Layer 3 switching and routing.
If you are using a Dell Layer 3 Switch, you should be familiar with the following protocols if
applicable to your network – IP, RIP, OSPF, BGP, ISIS, IGMP, PIM, DVMRP, and VRRP.

Supported hardware and software
The following hardware platform is supported in this release:

•
•
•
•

PowerConnect B-FCX624s
PowerConnect B-FCX648s
PowerConnect B-FCX624
PowerConnect B-FCX648

Document conventions
This section describes text formatting conventions and important notice formats used in this
document.

Text formatting
The following narrative-text formatting conventions are used in this guide.
bold text

Identifies command names
Identifies the names of user-manipulated GUI elements
Identifies keywords
Identifies text to enter at the GUI or CLI

italic text

Provides emphasis
Identifies variables
Identifies document titles

code text

Identifies CLI output

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For readability, command names in the narrative portions of this guide are presented in bold: for
example, show version. In actual examples, command lettercase is often all lowercase. Otherwise,
this manual specifically notes those cases in which a command is case sensitive.
.

Command syntax conventions
The following conventions apply to the command syntax in this guide.
command and
parameters

Commands and parameters are printed in bold.

[]

Optional parameter.

variable

Variables are printed in italics enclosed in angled brackets < >.

...

Repeat the previous element, for example “member[;member...]”

|

Choose from one of the parameters.

Notes, cautions, and danger notices
The following note, cautions, and danger statements are used in this manual. They are listed here
in order of increasing severity of potential hazards.

NOTE
A note provides a tip, guidance or advice, emphasizes important information, or provides a reference
to related information.

CAUTION
A Caution statement alerts you to situations that can be potentially hazardous to you or cause
damage to hardware, firmware, software, or data.

DANGER
A Danger statement indicates conditions or situations that can be potentially lethal or extremely
hazardous to you. Safety labels are also attached directly to products to warn of these conditions
or situations.

Related publications
The following Dell documents supplement the information in this guide:

• PowerConnect B-FCX Series Configuration Guide - Provides configuration procedures, including
configuration information for enterprise routing protocols.

• PowerConnect B-MLXe MIB Reference – Contains the Simple Network Management Protocol
(SNMP) Management Information Base (MIB) objects supported on de devices.

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NOTE

For the latest edition of these documents, which contain the most up-to-date information, refer to
Product Manuals at support.dell.com.

Getting technical help or reporting errors
Dell is committed to ensuring that your investment in our products remains cost-effective. If you
need assistance, or find errors in the manuals, contact Dell Technical Support.

Contacting Dell
For customers in the United States, call 800-WWW.DELL (800.999.3355).

NOTE

If you do not have an active Internet connection, you can find contact information on your purchase
invoice, packing slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options. Availability varies by
country and product, and some services may not be available in your area. To contact Dell for sales,
technical support, or customer service issues:
1. Visit http://support.dell.com.
2. Click your country or region at the bottom of the page. For a full listing of countries and regions,
click All.
3. In the Support menu, click All Support.
Choose the method of contacting Dell that is convenient for you.

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Chapter

Product Overview

1

Hardware features
The following hardware platforms are supported by this release of this guide:

• The PowerConnect B-FCX624s stackable switch has twenty 10/100/1000 Mbps RJ45 ports
plus four Combo ports, which include four 10/100/1000 Mbps RJ45 ports and four 100/1000
Mbps SFP ports. The switch has two management interfaces, a DB9 serial port (Console) on
the front panel and an RJ45 port (Out-of-band Management Interface) on the rear panel. Two
rear-panel power supply receptacles allow for up to two power supply units. Two dedicated 16
GbE CX4 ports on the rear panel allow stacking for up to eight units. The front panel also has a
module slot for an optional two-port 10 Gbps XFP module.

• The PowerConnect B-FCX648s stackable switch has forty four 10/100/1000 Mbps RJ45 ports
plus four Combo ports, which include four 10/100/1000 Mbps RJ45 ports and four 100/1000
Mbps SFP ports. The switch has two management interfaces, a DB9 serial port (Console) on
the front panel and an RJ45 port (Out-of-band Management Interface) on the rear panel. Two
rear-panel power supply receptacles allow for up to two power supply units. Two dedicated 16
Gbps Ethernet CX4 ports on the rear panel allow stacking for up to eight units. The front panel
also has a module slot for an optional two-port 10 Gbps Ethernet XFP module.

• The PowerConnect B-FCX624-E switch has twenty four 10/100/1000 Mbps RJ45 ports plus
four Combo 1 Gbps ports. The device has two management interfaces on the front panel, a
DB9 serial port (Console) and an RJ45 port (Out-of-band Management Interface). The front
panel has a slot for an optional four-port 1GbE SFP module (works as Combo port) or four-port
10 Gbps SFP+ module. On the rear panel a removable fan tray provides a cooling airflow from
the front to the back (FtB) of the device. Two rear-panel power supply receptacles
accommodate up to two power supply units that also support a front-to-back cooling airflow.

• The PowerConnect B-FCX624-I switch has twenty four 10/100/1000 Mbps RJ45 ports plus
four Combo 1 Gbps ports. The device has two management interfaces on the front panel, a
serial port (Console) and an RJ45 port (Out-of-band Management Interface). The front panel
has a slot for an optional four-port 1GbE SFP module (works as Combo port) or four-port 10
Gbps SFP+ module. On the rear panel a removable fan tray provides a cooling airflow from the
back to the front (BtF) of the device. Two rear-panel power supply receptacles accommodate up
to two power supply units that also support a back-to-front cooling airflow.

• The PowerConnect B-FCX648-E switch has forty four 10/100/1000 Mbps RJ45 ports plus four
Combo 1 Gbps ports. The device has two management interfaces on the front panel, a serial
port (Console) and an RJ45 port (Out-of-band Management Interface). The front panel has a
slot for an optional four-port 1GbE SFP module (works as Combo port) or four-port 10 Gbps
SFP+ module. On the rear panel a removable fan tray provides a cooling airflow from the front
to the back (FtB) of the device. Two rear-panel power supply receptacles accommodate up to
two power supply units that also support a front-to-back cooling airflow.

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Hardware features

• The PowerConnect B-FCX648-I switch has forty four 10/100/1000 Mbps RJ45 ports plus four
Combo 1 Gbps ports. The device has two management interfaces on the front panel, a serial
port (Console) and an RJ45 port (Out-of-band Management Interface). The front panel has a
slot for an optional four-port 1GbE SFP module, (works as Combo port) or four-port 10 Gbps
SFP+ module. On the rear panel a removable fan tray provides a cooling airflow from the back
to the front (BtF) of the device. Two rear-panel power supply receptacles accommodate up to
two power supply units that also support a back-to-front cooling airflow.

NOTE

All PowerConnect B-FCX models support Layer 2 and Enterprise Layer 3 protocols (RIP, OSPF, PIM).
PowerConnect B-FCX models can be ordered from the factory as -ADV (Advanded Layer 3) models,
which adds support for the Layer 3 BGP routing protocol.
The following sections describe the physical characteristics of the PowerConnect B-FCX models. For
more details about physical dimensions, power supply specifications, and pinouts, refer to
“Hardware Specifications” on page 57.
The following figures show the front panels of the PowerConnect B-FCX models. For more
information about Combo ports, see “Combination ports” on page 4. For more information about
control features in general, see “Control features” on page 3.

FIGURE 1

PowerConnect B-FCX624s front panel

Slot 3

A/S

FIGURE 2

PowerConnect B-FCX648s front panel

A/S

FIGURE 3

PowerConnect B-FCX624s and PowerConnect B-FCX648s rear panel

FIGURE 4

PowerConnect B-FCX624-E and PowerConnect B-FCX624-I front panel
Reset
Console
Mgmt

2

1

2

Diag

PS
1

3

5

7

9

11

13

15

17

19

21

23

2

4

6

8

10

12

14

16

18

20

22

24

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Hardware features

FIGURE 5

PowerConnect B-FCX648-E and PowerConnect B-FCX648-I front panel
Reset
1
Console
PS
Mgmt
1

2

FIGURE 6

2

Diag

3

5

4

6

7

8

9

11

10

12

13

15

14

16

17

19

18

20

21

23

25

27

29

31

33

35

37

39

41

43

45

47

22

24

26

28

30

32

34

36

38

40

42

44

46

48

PowerConnect B-FCX624-E, PowerConnect B-FCX624-I, PowerConnect B-FCX648-E ,
PowerConnect B-FCX648-I rear panels

CAUTION
For the PowerConnect B-FCX624-E, PowerConnect B-FCX624-I, PowerConnect B-FCX648-E , and
PowerConnect B-FCX648-I devices, be sure that the airflow direction of the power supply unit
matches that of the installed resiliant quad-fan fan tray. The power supplies and fan trays are
clearly labeled with either a green arrow with an “E”, or an orange arrow with an “I” as shown in
Table 1.

TABLE 1

Power supply and fan tray labels for PowerConnect B-FCX624-E, PowerConnect
B-FCX624-I, PowerConnect B-FCX648-E, and PowerConnect B-FCX648-I devices

Device

Label on required power supply

PowerConnect B-FCX624-E and
PowerConnect B-FCX648-E

WA R N I N G

E

POWER SUPPLY/FAN
FRU TYPES MUST
BE THE SAME

Label on required fan tray

E
AIRFLOW

AIRFLOW

PowerConnect B-FCX624-I and
PowerConnect B-FCX648-I

WARNING
POWER SUPPLY/FAN
FRU TYPES MUST
BE THE SAME

AIRFLOW

AIRFLOW

Control features
Each device front panel includes the following control features:

• Serial management interface (the DB9 port labeled Console)
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Hardware features

• Out-of-band RJ45 management Interface

Serial management interface (DB9 Console port)
The serial management interface allows you to configure and manage the device using a
third-party terminal emulation application on a directly-connected PC. A straight-through EIA or TIA
DB9 serial cable (M or F) ships with the device. The serial management interface (the DB9 Console
port) is located in the left corner of the front panel.

Out-of-band RJ45 management interface
The out-of-band RJ45 management interface enables you to configure and manage the device
using a third-party terminal emulation application on a directly-connected PC.

Network interfaces for PowerConnect B-FCX624s and PowerConnect B-FCX648s
PowerConnect B-FCX devices contain the following interfaces:

•
•
•
•

10/100/1000 Mbps ports with RJ45 copper connectors
100/1000 Mbps ports with mini-GBIC slots for SFP MSA-compliant fiber transceivers
Optional 2-port 10Gbps Ethernet XFP module
CX4 stacking ports

Network interfaces for PowerConnect B-FCX624 and PowerConnect B-FCX648
PowerConnect B-FCX devices contain the following interfaces:

•
•
•
•

10/100/1000 ports with RJ45 copper connectors
100/1000 ports with mini-GBIC slots for MSA-compliant SFP transceivers
Optional 4-port 1Gbps Ethernet SFP module
Optional 4-port 10Gbps Ethernet SFP+ module

PowerConnect B-FCX 10/100/1000 BASE-T ports
All PowerConnect B-FCX devices except for the fiber models contain 24 or 48 RJ45 ports that
operate at 10 Mbps or 100 Mbps, half or full duplex, or at 1000 Mbps, full duplex. Because all
ports support automatic MDI or MDI-X operation, you can use straight-through cables for all
network connections to PCs or servers, or to other switches or hubs. In addition, it is ideal and
preferred to use straight-through cable for switch-to-switch connections.
Each of these ports supports auto-negotiation, so the optimum transmission mode (half or full
duplex), and the data rate (10, 100, or 1000 Mbps) can be selected automatically. If a device
connected to one of these ports does not support auto-negotiation, the communication mode of
the port can be configured manually.
Combination ports
PowerConnect B-FCX devices contain four combination ports, which are four Small Form Factor
Pluggable (SFP) network interfaces (1F~4F) that are shared with four of the RJ45 ports (ports 1~4).
In the default configuration, if an SFP transceiver is installed in a slot and has a valid link on its
port, the associated RJ45 port is disabled and cannot be used. The switch can also be configured
to force the use of a combination RJ45 port or SFP slot, as required.

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Hardware features

1

NOTE

PowerConnect B-FCX624 and PowerConnect B-FCX648 devices do not ship with SFP ports. You must
install the optional SFP or SFP+ module for SFP support.
Slot designations
Table 2 lists the slot designations for PowerConnect B-FCX models.

TABLE 2

Stack unit slots for PowerConnect B-FCX stackable devices

Device

Slot 1

Slot 2

Slot 3

PowerConnect
B-FCX624s

20 10/100/1000 Mbps ports plus 4 Combo
ports (RJ45 ports 1-4, or SFP ports 1F-4F)

Two 16 Gbps uplink ports
on rear panel, or two Gbps
XFP ports (optional
module on front panel)

Two Gbps
XFP ports (optional
module on front
panel)

PowerConnect
B-FCX648s

44 20 10/100/1000 Mbps ports plus 4
Combo ports (RJ45 ports 1-4, or SFP ports
1F-4F)

Two 16 Gbps ports on rear
panel, or two Gbps XFP
ports (optional module on
front panel)

Two Gbps
XFP ports (optional
module on front
panel)

PowerConnect
B-FCX624
devices with
optional four-port
1 Gbps SFP
module

20 10/100/1000 Mbps RJ45 ports, plus
4-port 1 Gbps SFP module (optional)
combined with the first four 10/100/1000
Mbps RJ45 copper ports (acting as a
Combo port).

N/A

Optional four-port
1 Gbps SFP
module

PowerConnect
B-FCX648
devices with
optional four-port
1 Gbps SFP
module

40 10/100/1000 Mbps RJ45 ports, plus
4-port 1 Gbps SFP module (optional)
combined with the first four 10/100/1000
Mbps RJ45 copper ports (acting as a
Combo port).

N/A

Optional four-port
1 Gbps SFP
module

PowerConnect
B-FCX624
devices with
optional four-port
10 Gbps SFP+
module

24 10/100/1000 Mbps RJ45 ports

4-port 10 Gbps SFP+
module (optional) on front
panel

N/A

PowerConnect
B-FCX648
devices with
optional four-port
10 Gbps SFP+
module

44 10/100/1000 Mbps ports on front
panel

4-port 10 Gbps SFP+
module (optional) on front
panel

N/A

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SFP interfaces
Table 3 describes the network interfaces supported on PowerConnect B-FCX devices.

TABLE 3

SFP network interfaces

Interface

Show Media Description

Description

1000Base-BX-D

M-GBXD

1000Base-BXD SFP optic
SMF, transmits at 1490nm
and receives at 1310nm,
LC connector, single strand
SMF fiber. This optic
should only be connected
to an E1MG-BXU at the far
end.

1000Base-BX-U

M-GBXU

1000Base-BX-U SFP optic
SMF, transmits at 1310nm
and receives at 1490nm,
LC connector, single strand
SMF fiber. This optic
should only be connected
to an E1MG-BXD at the far
end.

1000Base-LHA

M-LHA

1000Base-LHA SFP optic,
SMF, LC connector, Optical
Monitoring Capable

1000Base-LX

M-LX

1000Base-LX SFP optic,
SMF, LC connector, Optical
Monitoring Capable

1000Base-SX

M-SX

1000Base-SX SFP optic,
MMF, LC connector, Optical
Monitoring Capable

100Base-FX

M-FX

100Base-FX SFP optic
MMF 8 Pack, LC connector,
Optical Monitoring Capable

100Base-FX-IR

M-FX_IR

100Base-FX-IR SFP optic
for SMF with LC connector,
Optical Monitoring
Capable. For distances up
to 15Km.

100Base-FX-LR

M-FX-LR

100Base-FX-LRSFP optic
for SMF with LC connector,
Optical Monitoring
Capable. For distances up
to 40Km.

Optional two-port 10 Gbps XFP uplink module
The PowerConnect B-FCX624s and PowerConnect B-FCX648s devices include a slot on the front
panel for a two-port 10 Gbps XFP uplink module. This module operates at 10 Gbps full duplex
mode.

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1

CAUTION
The optional 10Gbps XFP module is not hot-swappable.

FIGURE 7

Two-port 10 Gbps XFP module

TABLE 4

10 Gbps XFP module port status LEDs

LED

Condition

Status

Link or Act LED (Link or
Activity)

On or flashing Green

Port has a valid link at 10 Gbps. Flashing indicates activity.

Off

The link is down.

Optional Four-port 1 Gbps SFP and 10 Gbps SFP+ modules
The PowerConnect B-FCX624 and PowerConnect B-FCX648 devices include a slot on the front
panel for a four-port 1 Gbps SFP module, or a four-port 10 Gbps SFP+ module. The 1 Gbps SFP
module operates at 1 Gbps full duplex, and the 10 Gbps SFP+ module operates at 10 Gbps full
duplex.
PowerConnect B-FCX624 and PowerConnect B-FCX648 devices can be used in an IronStack by
installing the optional 10 Gbps SFP+ module, and connecting devices using standard duplex LC
cables. These devices cannot be combined in a stack with non-PowerConnect B-FCX devices. For
detailed information about how to configure PowerConnect B-FCX devices in an IronStack topology,
see the PowerConnect B-FCX Series Configuration Guide.

NOTE

The 1 Gbps SFP and 10 Gbps SFP+ modules are not hot-swappable.

FIGURE 8

Four-port 1 Gbps SFP module

FCX-4G

TABLE 5

1F

2F

3F

4F

Four-port 1 Gbps SFP module status LEDs

LED

Condition

Status

Link or Act LED (Link or
Activity)

On or flashing Green

Port has a valid link at 1 Gbps. Flashing indicates activity.

Off

The link is down.

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FIGURE 9

Four-port 10 Gbps SFP+ module

FCX-4XG

TABLE 6

X1

X2

X3

X4

Four-port 10 Gbps SFP+ module status LEDs

LED

Condition

Status

Link or Act LED (Link or
Activity)

On or flashing Green

Port has a valid link at 10 Gbps. Flashing indicates activity.

Off

The link is down.

NOTE
The two left ports on the Four-port 10Gbps SFP+ module do not pass regular Ethernet traffic by
default. The stack disable CLI command must be entered at the global level and the stack disable
CLI command must be configured on these two ports in order for them to pass regular traffic.

16/10 Gbps Ethernet CX4 stacking ports
The PowerConnect B-FCX624s and PowerConnect B-FCX648s devices include two 16/10 Gbps
Ethernet CX4 ports on the rear panel (the stacking ports). The device can perform data
transmission directly through copper links of up to 3 meters.
The Up Link and Down Link LEDs on the front panel indicate operational status. If the Up Link or
Down Link LED is on, the port is connected. If the Up Link or Down Link LED is off, no connection
exists, or the link is down.
Cable specifications for CX4 stacking ports
The following cable specifications apply to the CX4 stacking ports:

• Support for 802.3ak or 10 Gbps Ethernet CX4 standard and 16 Gbps inter-unit stacking (up to
8 units in a stack)

• Support for cables up to 3 meters in length
• Requires latch-style receptacle or SFF-8470 plug
NOTE

PowerConnect B-FCX624-E, PowerConnect B-FCX624-I, PowerConnect B-FCX648-E, and
PowerConnect B-FCX648-I devices can be added to a stack using the first two ports on a four-port
10 Gbps SFP+ module (optional) using standard duplex LC cables.

Port, system, and power status LEDs for PowerConnect B-FCX624s and PowerConnect
B-FCX648s
PowerConnect B-FCX switches include a display panel for key system and port indicators that
simplifies installation and network troubleshooting. The LEDs, which are located on the front panel
for easy viewing, are shown below and described in the following tables.

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FIGURE 10

Port status LEDs

2

1
Slot 3

A/S

1, 2 Port status LEDs

TABLE 7

Port status LEDs

LED

Condition

Status

Ethernet
(1~24/48)
Link or
Activity or Speed

On/Flashing Green

The port has established a valid link at 1000 Mbps. Flashing
indicates the port is transmitting and receiving user packets.

On/Flashing Amber

The port has established a valid link at 10 or 100 Mbps. Flashing
indicates the port is transmitting and receiving user packets.

Off

A link is not established with a remote port.

SFP
(1F~4F)
Link or
Activity

On/Flashing Green

The SFP port has established a valid link. Flashing indicates the
port is transmitting and receiving user packets.

Off

A link is not established with a remote port.

SFP
(1F~4F)
Speed

On Green

The SFP port is operating at 1000 Mbps.

On Amber

The SFP port is operating at 100 Mbps.

Off

A link is not established with a remote port.

FIGURE 11

System status LEDs

1
Slot 3

1

A/S

System status LEDs

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TABLE 8

System status LEDs

LED

Condition

Status

PS1
PS2
(Power Supply
Status)

Green

Power supply is operating normally.

Amber

Power supply fault.

Off

Power off or failure.

Diag
(Diagnostic)

Flashing Green

System self-diagnostic test in progress.

Green

System self-diagnostic test successfully completed.

Amber

System self-diagnostic test has detected a fault. (Blower, thermal or any
interface fault.)

Green

The device is the Active controller. If this LED is flashing green, the
system is initializing.

Amber

Indicates the device is the Standby controller.

Off

Device is operating as a stack member, or is in standalone mode.

Up Link or Down
Link (Stacking
uplink or downlink
port status)

Green

Uplink is operating normally.

Off

Uplink has failed or there is no link.

Stack ID (1-8)

Green

Indicates the device stack ID.

A or S
(Active or Standby)

FIGURE 12

Power status LEDs

1

1

Power status LEDs

TABLE 9
LED

Condition

Status

DC OK

Green

DC output ok

Red

DC output fail

Green

AC input ok

Off

AC input fail

AC OK

10

Power status LEDs

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NOTE

Both “AC OK” and “DC OK” LEDs must be green for the device to function normally.

TABLE 10

Switch status for two installed power supply units

State

LED

PSU1

PSU2

Switch Status

Load Sharing

Four Green PSU
LEDs

AC OK

Green

Green

Running

Yes

DC OK

Green

Green

Single Red ‘DC
OK’ LED

AC OK

Green

Green

Running

No

DC OK

Green

Red

Both ‘DC OK’
LEDs Red

AC OK

Green

Green

Failure

No

DC OK

Red

Red

One PSU with
both ‘AC OK’ ‘DC
OK’ LEDs Off

AC OK

Green

Off

Running

No

DC OK

Green

Off

‘DC OK’ LEDs Red
and Off

AC OK

Green

Off

Failure

No

DC OK

Red

Off

All ‘AC OK’ LEDs
Off

AC OK

Off

Off

No

DC OK

Off

Off

Power Off or
Failure

Port, system, and power status LEDs for PowerConnect B-FCX624 and PowerConnect B-FCX648
PowerConnect B-FCX switches include a display panel for key system and port indicators that
simplifies installation and network troubleshooting. The LEDs, which are located on the front panel
for easy viewing, are shown below and described in the following tables.

FIGURE 13

Port status LEDs

1
Reset
Console
Mgmt

1

2

Diag

PS
1

3

5

7

9

11

13

15

17

19

21

23

2

4

6

8

10

12

14

16

18

20

22

24

2
1

Port status LEDs

TABLE 11

2

SFP or SFP+ port status LEDs

Port status LEDs

LED

Condition

Status

Ethernet
(1~24/48)
Link or
Activity or Speed

On/Flashing Green

The port has established a valid link at 10/100/1000 Mbps.
Flashing indicates the port is transmitting and receiving user
packets.

Off

A link is not established with a remote port.

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TABLE 11

Port status LEDs (Continued)

LED

Condition

Status

SFP
(1F~4F)
Link or
Activity

On/Flashing Green

The SFP port has established a valid 100/1000 Mbps link.
Flashing indicates the port is transmitting and receiving user
packets.

Off

A link is not established with a remote port.

SFP+
(1F~4F)
Link or
Activity

On/Flashing Green

The SFP+ port has established a valid 10 Gbps link. Flashing
indicates the port is transmitting and receiving user packets.

Off

A link is not established with a remote port.

FIGURE 14

System status LEDs

1
1

Reset
Console
Mgmt

1

Diag

System status LEDs

TABLE 12

System status LEDs

LED

Condition

Status

PS1
PS2
(Power Supply
Status)

Green

Power supply is operating normally. It is installed properly and the
power cord is attached to a power source.

Amber

Power supply fault. The power supply may not be installed properly.

Off

Power off or failure.

Flashing Green

System self-diagnostic test in progress.

Green

System self-diagnostic test successfully completed.

Amber

System self-diagnostic test has detected a fault. (Blower, thermal or
any interface fault.)

On/Flashing Green

The port has established a valid link at 10/100/1000 Mbps.
Flashing indicates the port is transmitting and receiving user
packets.

Off

A link is not established with a remote port.

Diag
(Diagnostic)

Out-of-band
Management
Link or Activity

12

2

PS

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FIGURE 15

1

Power status LEDs

1

1

Power status LEDs

TABLE 13

Power status LEDs

LED

Condition

Status

DC OK

Green

DC output ok

Red

DC output fail

Green

AC input ok

Off

AC input fail

AC OK

NOTE

Both “AC OK” and “DC OK” LEDs must be green for the device to function normally.

TABLE 14

Switch status for two installed power supply units

State

LED

PSU1

PSU2

Switch Status

Redundancy

Four Green PSU
LEDs

AC OK

Green

Green

Running

Yes

DC OK

Green

Green

Single Red ‘DC
OK’ LED

AC OK

Green

Green

Running

No

DC OK

Green

Red

Both ‘DC OK’
LEDs Red

AC OK

Green

Green

Failure

No

DC OK

Red

Red

One PSU with
both ‘AC OK’ ‘DC
OK’ LEDs Off

AC OK

Green

Off

Running

No

DC OK

Green

Off

‘DC OK’ LEDs Red
and Off

AC OK

Green

Off

Failure

No

DC OK

Red

Off

All ‘AC OK’ LEDs
Off

AC OK

Off

Off

No

DC OK

Off

Off

Power Off or
Failure

Power supplies
The device has two power receptacles on the rear panel. Each device ships with one power supply
installed. PowerConnect B-FCX624s, PowerConnect B-FCX648s, PowerConnect B-FCX624, and
PowerConnect B-FCX648 devices use a 210W PSU.

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Each power supply has one standard power receptacle for the AC power cable, and AC and DC
status LEDs for easy monitoring and troubleshooting.
A secondary power supply can be installed to provide backup power in case of a failure and for
load-balancing when both power suppies are operational.Load-balancing gives the power supplies
a longer life span. 210W PSU is hot-swappable.
For instructions on installing and replacing a power supply refer to “Installing and replacing a power
supply unit” on page 26. For information on LED status refer to Table 9.

FIGURE 16

PowerConnect B-FCX624s and PowerConnect B-FCX648s AC power supply receptacle

1
1

AC power receptacle

FIGURE 17

PowerConnect B-FCX624 and PowerConnect B-FCX648 AC power supply receptacle

1

1

AC power receptacle

Power supply unit operation
When only one PSU is installed, both "AC OK" and "DC OK" LEDs on the installed PSU must be green
for the PowerConnect B-FCX device to function normally.
When two PSUs are installed, both "AC OK" and "DC OK" LEDs for one of the installed PSUs must be
green for the PowerConnect B-FCX device to function normally.

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Installing the PowerConnect B-FCX Switch

2

CAUTION
The procedures in this manual are intended for qualified service personnel.

CAUTION
Before beginning the installation, see the precautions in “Power precautions” on page 17.

Unpacking the device
PowerConnect B-FCX devices ship with all of the items listed below. Verify the contents of your
shipping container. If any items are missing, please contact the place of purchase.

Package contents
The following items are included in your shipping carton:

•
•
•
•
•
•
•
•
•

PowerConnect B-FCX device
115V AC PDU power cords(C13- C14) (for AC sourced devices)
PowerConnect B-FCXs devices ship with a .5M CX-4 stacking cable
Rack mount kit
Document Kit
Rubber feet Kt
Retainer nuts and screws
Warranty card
A straight-through EIA or TIA DB-9 serial cable (F/F). If you prefer to build your own cable, see
the pinout information in “Attaching a PC or terminal” on page 25.

General requirements
To manage the system, you need a management station, such as a PC running a terminal
emulation application. Connect the management station to the Console serial port on the switch.
Use the serial connection to perform basic configuration tasks, including assigning an IP address
and network mask to the system. This information is required to manage the system using the Web
management interface or Brocade Network Advisor or using the CLI through Telnet.

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Installation tasks

Installation tasks
Follow the steps listed in Table 15 to install your device. Details for each of these steps are
provided on the pages indicated.

TABLE 15

Installation tasks

Task
Number

Task

Where to Find More Information

1

Ensure that the physical environment that will host the
device has the proper cabling and ventilation.

“Preparing the installation site” on
page 18

2

Install any required optional modules into the switch.

“Powering on the system” on page 24

3

Install the Dell device on a desktop, in an equipment rack
(use provided retainer clips and screws).

“Installing the device” on page 19

4

Once the device is physically installed, plug the device into
a nearby power source that adheres to the regulatory
requirements outlined in this manual.

“Powering on the system” on page 24

5

Attach a terminal or PC to the Dell device. This will enable
you to configure the device through the Command Line
Interface (CLI).

“Attaching a PC or terminal” on page 25

6

No default password is assigned to the CLI. For additional
access security, assign a password.

“Assigning permanent passwords” on
page 33

7

Before attaching equipment to the device, you need to
configure an interface IP address to the subnet on which it
will be located. Initial IP address configuration is
performed using the CLI with a direct serial connection.
Subsequent IP address configuration can be performed
using the Web management interface.

“Configuring IP addresses” on page 35

8

Once you power on the device and assign IP addresses,
the system is ready to accept network equipment.

“Configuring IP parameters for devices
running Layer 3 software” on page 37

9

Test IP connectivity to other devices by pinging them and
tracing routes.

“Testing connectivity” on page 43

10

Continue configuring the device using the CLI or the Web
management interface. You also can use Brocade
Network Advisor to manage the device.

PowerConnect B-FCX Series Configuration
Guide

11

Secure access to the device.

PowerConnect B-FCX Series Configuration
Guide

Installation precautions
Follow all precautions when installing a Dell device.

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Installation precautions

General precautions
CAUTION
All fiber-optic interfaces use Class 1 lasers.

CAUTION
Do not install the device in an environment where the operating ambient temperature might
exceed 40 C (104 F).

CAUTION
Make sure the air flow around the front and sides of the device is not restricted.

CAUTION
Never leave tools inside the device.

Lifting precautions
CAUTION
Make sure the rack or cabinet housing the device is adequately secured to prevent it from
becoming unstable or falling over.

Power precautions
CAUTION
Use a separate branch circuit for each AC power cord, which provides redundancy in case one of
the circuits fails.

CAUTION
To avoid high voltage shock, do not open the device while the power is on.

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Preparing the installation site

CAUTION
Ensure that the device does not overload the power circuits, wiring, and over-current protection.
To determine the possibility of overloading the supply circuits, add the ampere (amp) ratings of all
devices installed on the same circuit as the device. Compare this total with the rating limit for the
circuit. The maximum ampere ratings are usually printed on the devices near the input power
connectors.

CAUTION
Disconnect the power cord from all power sources to completely remove power from the device.

CAUTION
If the installation requires a different power cord than the one supplied with the device, make
sure you use a power cord displaying the mark of the safety agency that defines the regulations
for power cords in your country. The mark is your assurance that the power cord can be used
safely with the device.

Preparing the installation site
Cabling infrastructure
Ensure that the proper cabling is installed at the site. Refer to “Hardware Specifications” on
page 57 for a summary of supported cabling types and their specifications.

Installation location
Before installing the device, plan its location and orientation relative to other devices and
equipment. Switches can be mounted in a standard 19-inch equipment rack that meets EIA-310D
standards, or on a flat surface. Be sure to follow the guidelines below when choosing a location.
The site should meet the following requirements:
• Maintain temperatures within 0 to 40C (32 to 104F) and humidity levels within 5% to 95%,
non-condensing.

• Allow a minimum of 3 in. of space between the sides and the back of the device and walls or
other obstructions for proper air flow.

• Allow at least 3 in. of space at the front and back of the device for the twisted-pair, fiber-optic,
and power cabling.

• Be accessible for installing, cabling and maintaining the devices.
• Allow the status LEDs to be clearly visible.
• Allow for twisted-pair cable to be always routed away from power lines, fluorescent lighting
fixtures and other sources of electrical interference, such as radios and transmitters.

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2

• Allow for the unit to be connected to a separate grounded power outlet that provides 110 to
240 VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each device and is powered from an
independent circuit breaker. As with any equipment, a filter or surge suppressor is
recommended.

Installing the device
You can install Dell devices on a desktop or in an equipment rack, use appropriate retainer nuts
and screws provided.

CAUTION
Make sure the rack or cabinet housing the device is adequately secured to prevent it from
becoming unstable or falling over.

Desktop installation
FIGURE 18

Attaching the adhesive feet

1. Attach the four adhesive feet to the bottom of the first switch.
2. Set the device on a flat desktop, table, or shelf near an AC power source. Make sure that
adequate ventilation is provided for the system. A 3 inch clearance is recommended on each
side.
3. If installing a single switch only, refer to “Powering on the system” on page 24.
4. If installing multiple switches, attach the adhesive feet to each one. Place each device squarely
on top of the one below, in any order.

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Preparing the installation site

Rack mount installation
NOTE
You need a #2 Phillips screwdriver for installation.

NOTE

For additional support for the stack of switches, refer to the Dell 1U shelf, Dell part number-G118R,
which is ordered separately.
Before mounting the switch in a rack, pay particular attention to the following factors:

• Temperature: Since the temperature within a rack assembly may be higher than the ambient
room temperature, check that the rack-environment temperature is within the specified
operating temperature range. (Refer to “Operating Environment” on page 57.)

• Mechanical loading: Do not place any equipment on top of a rack-mounted unit.
• Circuit overloading: Be sure that the supply circuit to the rack assembly is not overloaded.
• Grounding: Rack-mounted equipment should be properly grounded. Particular attention should
be given to supply connections other than direct connections to the mains.
Use the following setps to mount devices in rack.
1. Remove the rack mount kit from the shipping carton. The kit contains two L-shaped mounting
brackets and mounting screws.
2. Attach the mounting brackets to the sides of the device as illustrated in Figure 19 and
Figure 20.

NOTE

PowerConnect B-FCX624 and PowerConnect B-FCX648 brackets are mounted using three screws,
as shown in Figure 20.

FIGURE 19

20

Attaching the Brackets for PowerConnect B-FCX624s and PowerConnect B-FCX648s

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Preparing the installation site

FIGURE 20

Attaching the brackets for PowerConnect B-FCX624 and PowerConnect B-FCX648

3. Install retainer nuts into the non-threaded holes. And use 10-32 screws to fasten brackets into
the rack. Attach the device in the rack as illustrated in Figure 21.

FIGURE 21

Installing the device in a rack

4. If installing a single switch only, proceed to “Powering on the system” on page 24.
5. If installing multiple switches, mount them in the rack, one below the other, in any order.

Connecting devices in a stack
PowerConnect B-FCX624s and PowerConnect B-FCX648s devices
Figure 5 shows how the stack cables are connected between switches in a stack. The connection is
based on 10G/16G Gigabit Ethernet, using CX4 cables. PowerConnect B-FCX devices support
linear and ring stack topologies, and can also operate as standalone devices.

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Preparing the installation site

In a linear stack topology there is a single stack cable connection between each switch that carries
two-way communications across the stack. In ring stack topology, an extra cable is connected
between the top and bottom switches forming a “ring” or “closed-loop.” The closed-loop cable
provides a redundant path for the stack link, so if one link fails, stack communications can be
maintained. Figure 5 illustrates a ring-topology stacking configuration.
You can form a stack containing up to eight PowerConnect B-FCX units. To connect switches in a
stack, perform the following steps:
1. Plug one end of a stack cable into one of the CX4 stacking ports of the top unit.
2. Plug the other end of the stack cable into one of the stacking ports of the next unit.
3. Repeat steps 1 and 2 for each unit in the stack. Form a simple chain starting with a stacking
port on the top unit and ending at a stacking port on the bottom unit (stacking up to eight
units).
4. (Optional) To form a ring stack topology, plug one end of a stack cable into the remaining
stacking port on the bottom unit and the other end into the remaining stacking port on the top
unit.

FIGURE 22

22

Connecting switches in a linear (top) and ring (bottom) topology stack

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Preparing the installation site

5. One device in the stack will operate as the Active Controller, one will operate as Standby
Controller, with the rest of the units operating as stack members. For information about how to
configure your stack, see the PowerConnect B-FCX Series Configuration Guide.

PowerConnect B-FCX624 and PowerConnect B-FCX648 devices
Figure 23 and Figure 24 show how stacking cables are connected between PowerConnect
B-FCX624 and PowerConnect B-FCX648 devices in a stack. The connection is based on 10 Gbps
SFP+ using LC-LC MM Fiber cables. These devices support linear and ring stack topologies with the
optional SFP+ modules installed, and can also operate in standalone mode.

NOTE
PowerConnect B-FCX624 and PowerConnect B-FCX648 devices must have a 4-port 10 Gbps SFP+
module (optional) installed to operate in a stack.
Figure 25 shows a stack containing PowerConnect B-FCX624 , PowerConnect B-FCX648 devices
and another PowerConnect B-FCX device. Using PowerConnect B-FCX624 and PowerConnect
B-FCX648 devices in this type of mixed stack requires your to reconfigure the default stacking ports
on the other PowerConnect B-FCX device. For more information, see the FastIron Configuration
Guide.
You can form a stack containing up to eight PowerConnect B-FCX624 and PowerConnect B-FCX648
units. To connect switches in a stack, perform the following steps:
1. Plug one end of an LC-LC MM Fiber cable into one of the SFP+ stacking ports of the top unit.
2. Plug the other end of the cable into one of the stacking ports of the next unit.
3. Repeat steps 1 and 2 for each unit in the stack. Form a simple chain starting with a stacking
port on the top unit and ending at a stacking port on the bottom unit (stacking up to eight
units). See Figure 23
4. (Optional) To form a ring stack topology, plug one end of an LC-LC MM Fiber cable into the
remaining stacking port on the bottom unit and the other end into the remaining stacking port
on the top unit. See Figure 24.

FIGURE 23

Connecting PowerConnect B-FCX624-E and PowerConnect B-FCX648-E devices in a
linear stack topology
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Powering on the system

FIGURE 24

Connecting PowerConnect B-FCX624-E and PowerConnect B-FCX648-E devices in a
ring stack topology
Reset
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Mgmt
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FIGURE 25

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Connecting PowerConnect B-FCX624-E and PowerConnect B-FCX648-E devices in a
mixed stack with an PowerConnect B-FCX624s device
FastIron FCX648S

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Powering on the system
After you complete the physical installation, you can power on the system.
1. Remove the power cable from the shipping package.
2. Attach the AC power cable to the AC connector on the rear panel.
3. Insert the power cable plug into a 115V, 120V, or 240V outlet.

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Attaching a PC or terminal

2

NOTE

To turn the system off, simply unplug the power cable or cables.

NOTE

The socket should be installed near the equipment and should be easily accessible.

NOTE
If the outlet is not rated 115/120V, stop and get the appropriate cable for the outlet.

Attaching a PC or terminal
To assign an IP address, you must have access to the Command Line Interface (CLI). The CLI is a
text-based interface that can be accessed through a direct serial connection to the device and
through Telnet connections. The CLI is described in detail in the PowerConnect B-FCX Series
Configuration Guide.
Access the CLI by attaching a serial cable to the Console port. After you assign an IP address, you
can access the system through Telnet, the Web management interface, or Brocade Network
Advisor.
Use the following steps to attach a management station to the serial port.
1. Connect a PC or terminal to the serial port of the system using a straight-through cable. The
serial port has a male DB-9 connector. See Figure 26.

NOTE

You need to run a terminal emulation program on the PC.
2. Launch the terminal emulation program and set the following session parameters:

•
•
•
•
•

Baud: 9600 bps
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None

The EIA or TIA 232 serial communication port serves as a connection point for management by a
PC or SNMP workstation. Dell devices come with a standard male DB-9 connector, shown in
Figure 26.

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2

Installing and replacing a power supply unit

FIGURE 26

Serial Port (DB-9 DTE) Pin-Out

1

5

6

9

Most PC serial ports also require a cable with a female DB-9 connector. Terminal connections will
vary, requiring either a DB-9 or DB-25 connector, male or female. Serial cable options between a
Dell device and a PC or terminal are shown in Table 16.

Wiring map for serial cable
TABLE 16

Serial cable wiring

Switch 9-Pin Serial Port

Null Modem

PC 9-Pin DTE Port

2 TXD (transmit data)

---------------------------->

2 RXD (receive data)

3 RXD (receive data)

<----------------------------

3 TXD (transmit data)

5 SGND (signal ground)

<-------------------------->

5 SGND (signal
ground)

No other pins are used.

NOTE

As indicated in Table 16, some of the wires should not be connected.

Installing and replacing a power supply unit
CAUTION
For the PowerConnect B-FCX624 and PowerConnect B-FCX648 devices,be sure that the airflow
direction of the power supply unit matches that of the installed fan tray. The power supplies and
fan trays are clearly labeled with either a green arrow with an “E”, or an orange arrow with an “I”
as shown in Table 1 on page 3.

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Installing and replacing a power supply unit

FIGURE 27

Installing a power supply unit

Use the following steps to install a power supply unit in the switch.
1. Remove the blank metal plate (or a previously installed PSU) from the appropriate slot by
removing the two screws with a flat-head screwdriver.
2. Before opening the package that contains the PSU, touch the bag to the switch casing to
discharge any potential static electricity. Dell recommends using an ESD wrist strap during
installation.
3. Remove the PSU from the anti-static shielded bag.
4. Holding the PSU level, guide it into the carrier rails on each side and gently push it all the way
into the slot, ensuring that it firmly engages with the connector.
5. When you are sure the PSU has properly engaged the connector, tighten the retainer screws to
secure the in PSU the slot.
When the device is powered on, the PSU AC and DC LEDs on the PSU back panel should turn green
to confirm that the PSU is correctly installed and supplying power.

CAUTION
If you do not install a PSU in a slot, you must keep the slot panel in place. If you run the device
with an uncovered slot, the system will overheat.

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Installing or replacing fan trays on PowerConnect B-FCX624s and PowerConnect B-FCX648s devices

Installing or replacing fan trays on PowerConnect B-FCX624s and
PowerConnect B-FCX648s devices
FIGURE 28

Installing a fan tray on a PowerConnect B-FCX624s or PowerConnect B-FCX648s
device

Perform the following steps to install a fan tray in the switch.
1. Remove the installed fan tray from the slot by removing the two screws with a crosshead or
Philips screwdriver.
2. Before opening the package that contains the new fan tray, touch the bag to the switch casing
to discharge any potential static electricity. It is recommended that you wear an ESD wrist strap
during installation.
3. Remove the fan tray from the anti-static shielded bag.
4. Holding the fan tray level, guide it into the carrier rails on each side and gently push it all the
way into the slot, ensuring that it firmly engages with the connector.
5. When you are sure the fan tray has properly engaged the connector, tighten the retainer screws
to secure the fan tray in the slot.

NOTE
The fans are controlled by software, and their speed is set according to the environmental
temperature surrounding the switch.

Installing or replacing fan trays on PowerConnect B-FCX624 and
PowerConnect B-FCX648 devices
CAUTION
For PowerConnect B-FCX624 and PowerConnect B-FCX648 devices, be sure that the airflow
direction of the power supply unit matches that of the installed fan tray. The power supplies and
fan trays are clearly labeled with either a green arrow with an “E”, or an orange arrow with an “I”
as shown in Table 1 on page 3.

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Installing or replacing fan trays on PowerConnect B-FCX624 and PowerConnect B-FCX648 devices

FIGURE 29

Installing a fan tray on a PowerConnect B-FCX624-E, PowerConnect B-FCX624-I,
PowerConnect B-FCX648-E, and PowerConnect B-FCX648-I device

Fan trays are hot-swappable. Perform the following steps to install a fan tray in the switch.
1. Remove the installed fan tray from the slot by removing the two screws with a crosshead or
Philips screwdriver.
2. Before opening the package that contains the new fan tray, touch the bag to the switch casing
to discharge any potential static electricity. It is recommended that you wear an ESD wrist strap
during installation.
3. Remove the fan tray from the anti-static shielded bag.
4. Holding the fan tray level, guide it into the carrier rails on each side and gently push it all the
way into the slot, ensuring that it firmly engages with the connector.
5. When you are sure the fan tray has properly engaged the connector, tighten the retainer screws
to secure the fan tray in the slot.

NOTE

The fans are controlled by software, and their speed is set according to the environmental
temperature surrounding the switch.

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Installing an optional module on PowerConnect B-FCX624s or PowerConnect B-FCX648s devices

Installing an optional module on PowerConnect B-FCX624s or
PowerConnect B-FCX648s devices
FIGURE 30

Installing an optional module

PowerConnect B-FCX624s and PowerConnect B-FCX648s switches support an optional two-port 10
Gbps Ethernet XFP module.
Perform these steps to install an optional module.
1. Remove the blank metal plate (or an installed module) from the slot by removing the two
screws with a Phillips screwdriver.
2. Before opening the package that contains the module, touch the bag to the switch casing to
discharge any potential static electricity. It is recommended that you wear an ESD wrist strap
during installation.
3. Remove the module from the anti-static shielded bag.
4. Holding the module level, guide it into the carrier rails on each side and gently push it all the
way into the slot, ensuring that it firmly engages with the connector.
5. When you are sure the module has properly engaged the connector, tighten the retainer
screws to secure the module in the slot.
6. When the switch is powered on, the LEDs will function as described in “Port, system, and
power status LEDs for PowerConnect B-FCX624s and PowerConnect B-FCX648s” on page 8.

CAUTION
If you do not install a module in a slot, you must keep the slot panel in place. If you run the device
with an uncovered slot, the system will overheat.

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Installing an optional module in PowerConnect B-FCX624 and PowerConnect B-FCX648 devices

Installing an optional module in PowerConnect B-FCX624 and
PowerConnect B-FCX648 devices
PowerConnect B-FCX624 and PowerConnect B-FCX648 switches support an optional four-port 1
Gbps SFP module or four-port 10 Gbps SFP+ module. The 10 Gbps SFP+ module allows you to use
your device in a stack. Figure 31 shows how to install an optional SFP or SFP+ module.

FIGURE 31

Installing an optional module in PowerConnect B-FCX624-E, PowerConnect
B-FCX624-I, PowerConnect B-FCX648-E, and PowerConnect B-FCX648-I devices

CAUTION
Optional SFP and SFP+ modules are not hot-swappable. Be sure to power-down your device
before you install or replace a module.
Perform these steps to install an optional module.
1. Remove the blank metal plate (or a installed module) from the slot by removing the two screws
with a Phillips screwdriver.
2. Before opening the module package, touch the bag to the switch casing to discharge any static
electricity. It is recommended that you wear an ESD wrist strap during installation.
3. Remove the module from the anti-static shielded bag.
4. Hold the module level, guide it into the carrier rails and gently push it into the slot until it firmly
engages with the connector.
5. When the module is engaged, tighten the retainer screws to secure the module in the slot.
6. When the switch is powered on, the LEDs will follow the LED status as described in “Port,
system, and power status LEDs for PowerConnect B-FCX624 and PowerConnect B-FCX648” on
page 11.

NOTE

If you want ports 1 and 2 on the 10 Gbps module to pass regular Ethernet traffic, you must first
disable stacking on these ports. For more information, see the PowerConnect B-FCX Series
Configuration Guide

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Installing an optional module in PowerConnect B-FCX624 and PowerConnect B-FCX648 devices

CAUTION
If you do not install a module in a slot, you must keep the slot panel in place. If you run the device
with an uncovered slot, the system will overheat.

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Checking Network Devices and Testing Connectivity

3

CAUTION
The procedures in this manual are for qualified service personnel.

Assigning permanent passwords
By default, the CLI is not protected by passwords. To secure CLI access, Dell strongly recommends
assigning passwords. See the PowerConnect B-FCX Series Configuration Guide.

NOTE

You cannot assign a password using the Web Management Interface. You can assign passwords
using Brocade Network Advisor if an enable password for a Super User has been configured on the
device.
The CLI contains the following access levels:

• User EXEC – The level you enter when you first start a CLI session. At this level, you can view
some system information but you cannot configure system or port parameters.

• Privileged EXEC – This level is also called the Enable level and can be secured by a password.
You can perform tasks such as manage files on the flash module, save the system
configuration to flash, and clear caches at this level.

• CONFIG – The configuration level. This level lets you configure the system IP address and
configure switching and routing features. To access the CONFIG mode, you must already be
logged into the Privileged level of the EXEC mode.
You can set the following levels of Enable passwords:

• Super User – Allows complete read-and-write access to the system. This is generally for system
administrators and is the only password level that allows you to configure passwords.

NOTE

You must set a super user password before you can set other types of passwords.

• Port Configuration – Allows read-and-write access for specific ports but not for global
(system-wide) parameters.

• Read Only – Allows access to the Privileged EXEC mode and CONFIG mode but only with read
access.

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Assigning permanent passwords

Setting passwords
1. At the opening CLI prompt, enter the following command to change to the Privileged level of the
EXEC mode:
PowerConnect> enable

2. Access the CONFIG level of the CLI by entering the following command:
PowerConnect# configure terminal
PowerConnect(config)#

3. Enter the following command to set the super user password:
PowerConnect(config)# enable super-user-password 

NOTE

You must set the super user password before you can set other types of passwords.
4. Enter the following commands to set the port configuration and read-only passwords:
PowerConnect(config)# enable port-config-password 
PowerConnect(config)# enable read-only-password 

NOTE

If you forget your super user password, refer to “Recovering from a lost password” on page 34.
Syntax: enable super-user-password | read-only-password | port-config-password 
Passwords can be up to 32 characters long.

Recovering from a lost password
By default, the CLI does not require passwords. However, if someone has configured a password
for the device but the password has been lost, you can regain super user access to the device using
the following procedure.

NOTE

Recovery from a lost password requires direct access to the serial port and a system reset.
Use the following procedure to recover from a lost password.
1. Start a CLI session over the serial interface to the Dell device.
2. Reboot the device.
3. While the system is booting, before the initial system prompt appears, enter b to enter the boot
monitor mode.
4. Enter no password at the prompt. (You cannot abbreviate this command.)
5. Enter boot system flash primary at the prompt. This command causes the device to bypass the
system password check.
After the console prompt reappears, assign a new password.

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Configuring IP addresses

Configuring IP addresses
You must configure at least one IP address using the serial connection to the CLI before you can
manage the system using the other management interfaces.
Dell devices support both classical IP network masks (Class A, B, and C subnet masks, and so on)
and Classless Interdomain Routing (CIDR) network prefix masks.

• To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.

• To enter a prefix number for a network mask, enter a forward slash ( / ) and the number of bits
in the mask immediately after the IP address. For example, enter “209.157.22.99/24” for an
IP address that has a network mask with 24 significant (“mask”) bits.
By default, the CLI displays network masks in classical IP address format (example:
255.255.255.0). You can change the display to the prefix format. See the PowerConnect B-FCX
Series Configuration Guide.

Devices running Layer 2 software
Use the following procedure to configure an IP Address on a device running Layer 2 software.
1. At the opening CLI prompt, enter enable.
PowerConnect> enable

2. Enter the following command at the Privileged EXEC level prompt (for example,
PowerConnect#), then press Enter. This command erases the factory test configuration if still
present:
PowerConnect# erase startup-config

CAUTION
Use the erase startup-config command only for new systems. If you enter this command on a
system you have already configured, the command erases the configuration. If you accidentally
do erase the configuration on a configured system, enter the write memory command to save the
running configuration to the startup-config file.
3. Access the configuration level of the CLI by entering the following command:
PowerConnect# configure terminal (Privileged EXEC Level)
PowerConnect(config)# (Global CONFIG Level)

4. Configure the IP address and mask for the switch.
PowerConnect(config)# ip address 192.22.3.44 255.255.255.0

5. Set a default gateway address for the switch.
PowerConnect(config)# ip default-gateway 192.22.3.1

NOTE

You do not need to assign a default gateway address for single subnet networks.
Syntax: enable []
Syntax: configure terminal

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Configuring IP addresses

Syntax: [no] ip address  
or
Syntax: [no] ip address /
Syntax: ip default-gateway 

Devices running Layer 3 software
Before attaching equipment to a Layer 3 Switch, you must assign an interface IP address to the
subnet on which the router will be located. You must use the serial connection to assign the first IP
address. For subsequent addresses, you also can use the CLI through Telnet or the Web
management interface.
By default, you can configure up to 24 IP interfaces on each port, virtual interface, and loopback
interface. You can increase this amount to up to 64 IP subnet addresses per port by increasing the
size of the subnet-per-interface table.
The following procedure shows how to add an IP address and mask to a router port.
1. At the opening CLI prompt, enter enable.
PowerConnect> enable

2. Enter the following command at the CLI Privileged EXEC level prompt, then press Enter. This
command erases the factory test configuration if still present:
PowerConnect# erase startup-config

CAUTION
Use the erase startup-config command only for new systems. If you enter this command on a
system you have already configured, the command erases the configuration. If you accidentally
do erase the configuration on a configured system, enter the write memory command to save the
running configuration to the startup-config file.
3. Access the configuration level of the CLI by entering the following command:
PowerConnect# configure terminalPrivileged EXEC Level
PowerConnect(config)# Global CONFIG Level

4. Configure the IP addresses and mask addresses for the interfaces on the router.
PowerConnect(config)# int e 2
PowerConnect(config-if-e1000-2)# ip address 192.22.3.44 255.255.255.0

NOTE

You can use the syntax ip address / if you know the subnet mask length.
In the above example, you could enter ip address 192.22.3.44/24.
Syntax: enable []
Syntax: configure terminal
Syntax: [no] ip address   [secondary]
or
Syntax: [no] ip address / [secondary]

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3

Use the secondary parameter if you have already configured an IP address within the same
subnet on the interface.

Configuring IP parameters for devices running Layer 3 software
This section describes how to configure IP parameters for devices running Layer 3 software.
Configuring IP addresses
You can configure an IP address on the following types of Layer 3 switch interfaces:

• Ethernet port
• Virtual routing interface (also called a Virtual Ethernet or “VE”)
• Loopback interface
By default, you can have up to 24 IP addresses on each interface, but you can increase this number
to 128 IP addresses.

NOTE
Once you configure a virtual routing interface on a VLAN, you cannot configure Layer 3 interface
parameters on individual ports in the VLAN. Instead, you must configure the parameters on the
virtual routing interface itself.
Dell devices support both classical IP network masks (Class A, B, and C subnet masks, and so on)
and Classless Interdomain Routing (CIDR) network prefix masks.

• To enter a classical network mask, enter the mask in IP address format. For example, enter
“209.157.22.99 255.255.255.0” for an IP address with a Class-C subnet mask.

• To enter a prefix network mask, enter a forward slash ( / ) and the number of bits in the mask
immediately after the IP address. For example, enter “209.157.22.99/24” for an IP address
that has a network mask with 24 significant bits (ones).
By default, the CLI displays network masks in classical IP address format (for example:
255.255.255.0). You can change the display to prefix format.
Assigning an IP address to an Ethernet port
Enter the following commands to assign an IP address to port 1/1/1.
PowerConnect(config)# interface ethernet 1/1/1
PowerConnect(config-if-1/1/1)# ip address 192.45.6.1 255.255.255.0

NOTE

You also can enter the IP address and mask in CIDR format, as follows:
PowerConnect(config-if-1/1/1)# ip address 192.45.6.1/24

Syntax: [no] ip address  
or
Syntax: [no] ip address /
Assigning an IP address to a loopback interface
Loopback interfaces are always up, regardless of the states of physical interfaces. They can add
stability to the network because they are not subject to route flap problems that can occur due to
unstable links between a Layer 3 Switch and other devices. You can configure up to four loopback
interfaces on a Layer 3 switch.

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Configuring IP addresses

You can add up to 24 IP addresses to each loopback interface.

NOTE

If you configure the Dellswitch to use a loopback interface to communicate with a BGP4 neighbor,
you must also configure a loopback interface on the neighbor and configure the neighbor to use that
loopback interface to communicate with theDell switch.
To add a loopback interface, enter commands such as those shown in the following example:
PowerConnect(config)# exit
PowerConnect(config)# int loopback 1
PowerConnect(config-lbif-1)# ip address 10.0.0.1/24

Syntax: interface loopback 
The  parameter specifies the virtual interface number. You can specify from 1 to the
maximum number of virtual interfaces supported on the device. To display the maximum number
of virtual interfaces supported on the device, enter the show default values command. The
maximum is listed in the System Parameters section, in the Current column of the virtual-interface
row.
Assigning an IP address to a virtual routing interface
A virtual interface is a logical port associated with a Layer 3 Virtual LAN (VLAN) configured on a
Layer 3 switch. You can configure routing parameters on the virtual interface to enable the Layer 3
switch to route protocol traffic from one Layer 3 VLAN to the other, without using an external router.
This section describes how to configure an IP address on a virtual interface.

NOTE

The switch uses the lowest MAC address on the device (the MAC address of port 1 or 1/1/1) as the
MAC address for all ports within all virtual interfaces you configure on the device.
Enter commands similar to the following to add a virtual interface to a VLAN and configure an IP
address on the interface.
PowerConnect(config)# vlan 2 name IP-Subnet_1.1.2.1/24
PowerConnect(config-vlan-2)# untag 1/1/1 to 1/1/4
PowerConnect(config-vlan-2)# router-interface ve1
PowerConnect(config-vlan-2)# interface ve1
PowerConnect(config-vif-1)# ip address 1.1.2.1/24

The first two commands in this example create a Layer 3 protocol-based VLAN name
“IP-Subnet_1.1.2.1/24” and add a range of untagged ports to the VLAN. The router-interface
command creates virtual interface 1 as the routing interface for the VLAN. The last two commands
change to the interface configuration level for the virtual interface and assign an IP address to the
interface.
Syntax: router-interface ve 
Syntax: interface ve 

Deleting an IP address
Enter a command similar to the following to delete an IP address.
PowerConnect(config-if-1/1/1)# no ip address 1.1.2.1

This command deletes IP address 1.1.2.1. You do not need to enter the subnet mask.

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3

To delete all IP addresses from an interface, enter the following command:
PowerConnect(config-if-1/1/1)# no ip address *

Syntax: no ip address  | *

Connecting network devices
Dell devices support connections to other vendors’ routers, switches, and hubs, as well other Dell
devices.

Connectors.
For port pinouts, refer to “Pinouts and signalling” on page 61.

Cable specifications
Refer to “Cable specifications” on page 62 for cable lengths and types.

Connecting to Ethernet or fast Ethernet hubs
For copper connections to Ethernet hubs, a 10/100BaseTX or 1000BaseT switch, or another Dell
device, a crossover cable is required (Figure 32 and Figure 33). If the hub is equipped with an
uplink port, it will require a straight-through cable instead of a crossover cable.

NOTE

The 802.3ab standard (automatic MDI or MDIX detection) calls for automatic negotiation of the
connection between two 1000Base-T ports. In this case a straight-through cable may work just as
well as a crossover cable. For more information about this feature, see the PowerConnect B-FCX
Series Configuration Guide.

FIGURE 32

UTP crossover cable

10/100BASE-TX Crossover Cable
White/Orange Stripe
Orange

End A

1
2
3
4
5
6
7
8

White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe

1
2
3
4
5
6
7
8

End B

Brown

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FIGURE 33

Straight-through cable

g
10/100BASE-TX Straight-through Cable
White/Orange Stripe
Orange

End A

1
2
3
4
5
6
7
8

White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe

1
2
3
4
5
6
7
8

End B

Brown

Connecting to workstations, servers, or routers
Straight-through UTP cabling is required for direct UTP attachment to workstations, servers, or
routers using network interface cards (NICs).
Fiber cabling is required for direct attachment to Gigabit NICs or switches and routers through fiber
ports. Refer to “Connecting a network device to a fiber port” on page 40.

Automatic MDI or MDIX detection
All 10/100 and Gbps Ethernet Copper ports on the devices support automatic Media Dependent
Interface (MDI) and Media Dependent Interface Crossover (MDIX) detection. This feature is
enabled on all 10/100 and Gigabit copper ports by default. For each port, you can disable auto
MDI or MDIX, designate the port as an MDI port, or designate the port as an MDIX port.
For more information about this feature and how configure it, refer to PowerConnect B-FCX Series
Configuration Guide.

Connecting a network device to a fiber port
For direct attachment from the device to a Gbps NIC, switch, or router, using a fiber optic
transceiver, you will need fiber cabling with an LC connector.
To connect the device to another network device using a fiber port, you must do the following tasks:

• Install a fiber optic transceiver (XFP, SFP, or SFP+)
• Cable the fiber optic transceiver
The following sections describe these tasks.

Fiber Optic transceivers
Table 17 lists supported XFP transceivers (for stacking and non-stacking PowerConnect B-FCX
models). Table 18 shows supported SFP and SFP+ transceivers. For information about cabling for
transceivers, see Table 24.

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TABLE 17

Supported XFP transceivers for PowerConnect B-FCX624s and PowerConnect
B-FCX648s

10 Gigabit Optic

Distance

Supported for stacking

10GBase-SR

300m

Yes

10GBase-LR

10km

No

10GBase-ER

40km

No

TABLE 18

3

Supported SFP transceivers for PowerConnect B-FCX624 and PowerConnect
B-FCX648

10 Gigabit Optic

Distance

Supported for stacking

10GSFPP-SR

300m

Yes

10GSFPP-LR

10km

No

Installing a transceiver
You can install a new transceiver in an XFP, SFP, or SFP+ slot while the device is powered on and
running.
While installing a transceiver, wear an ESD wrist strap with a plug for connection to a metal surface.

NOTE

For safety reasons, the ESD wrist strap should contain a series 1 meg ohm resistor.

CAUTION
All fiber optic interfaces use Class 1 lasers.
Use the following setps to install a transceiver.
1. Put on the ESD wrist strap and ground yourself by attaching the clip end to a metal surface
(such as an equipment rack) to act as ground.
2. Remove the new transceiver from the protective packaging.
3. Gently insert the transceiver into the slot until it clicks into place. Transceivers are keyed to
prevent incorrect insertion.

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FIGURE 34

Installing a transceiver in PowerConnect B-FCX624s and PowerConnect B-FCX648s
devices

Slot 3

A/S

FIGURE 35

Installing a transceiver in PowerConnect B-FCX624 and PowerConnect B-FCX648

Cabling a fiber optic transceiver
Use the following steps to cable a fiber optic transceiver.
1. Remove the protective covering from the fiber-optic port connectors and store the covering for
future use.
2. Before cabling a fiber optic transceiver, Dell strongly recommends cleaning the cable
connectors and the port connectors. For more information, refer to “Cleaning the fiber optic
connectors” on page 43.
3. Gently insert the cable connector (a tab on each connector should face upward) into the
transceiver connector until the tabs lock into place.
4. Observe the link and active LEDs to determine if the network connections are functioning
properly. For more information about the LED indicators, refer to Table 19.

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Cleaning the fiber optic connectors
To avoid problems with the connection between the fiber optic transceiver (SFP, SFP+, or
mini-GBIC) and the fiber cable connectors.
When not using an SFP connector, make sure to keep the protective covering in place.

Testing connectivity
Test for connectivity by observing the LEDs related to network connection.

Pinging an IP address
To verify that a PowerConnect B-FCX device can reach another device through the network, enter a
command similar to the following at any level of the CLI.
PowerConnect> ping 192.33.4.7

Syntax: ping  [source ] [count ] [timeout ] [ttl ] [verify]
[no-fragment] [quiet] [data <1-to-4 byte hex#, e.g. abcdef00>] [numeric] [size ]
[brief [max-print-per-sec ]]

NOTE

If you address the ping to the IP broadcast address, the device lists the first four responses.

Observing LEDs
After you install the network cables, you can observe certain LEDs to determine if the network
connections are functioning properly. Table 19 outlines the LEDs related to the network
connections, the desired state of each LED, possible abnormal states of each LED, and what to do
if an LED indicates an abnormal state.

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TABLE 19

Network connection-related LED states

LED

Desired
State

Meaning

Abnormal State Meaning or Action

Ethernet
(1-24/48)
Link or
Activity or
Speed

On or
Blinking
(Green or
Amber)

A link is established with
the remote port and user
packets are being
transmitted or received.

Off

A link is not established with the remote port. You can do the
following:
• Verify that the connection to the other network device has
been properly made. Also, make certain that the other
network device is powered on and operating correctly.
• Verify that the port has not been disabled through a
configuration change. You can use the CLI. If you have
configured an IP address on the device, you also can use
the Web management interface or Brocade Network
Advisor.
• For the combination ports (ports 1~4), check that the
shared SFP port (1F~4F) is not being used.
• If the other actions don’t resolve the problem, try using a
different port or a different cable.

SFP
(1F~4F)
Link or
Activity

On Green

A link is established with
the remote port.

Off

A link is not established with the remote port. You can do the
following:
• Verify that the connection to the other network device has
been properly made. Also, make certain that the other
network device is powered on and operating correctly.
• Verify that the transmit port on the Dell device is
connected to the receive port on the other network device,
and that the receive port on the Dell device is connected
to the transmit port on the other network device. If you are
not certain, remove the two cable connectors from the
port connector and reinsert them in the port connector,
reversing their order.
• Dust may have accumulated in the cable connector or port
connector. For information about cleaning the connectors,
refer to “Cleaning the fiber optic connectors” on page 43.
• Verify that the port has not been disabled through a
configuration change.
• Check that the configuration has not forced the use of the
RJ45 port shared with the SFP port.
• If the other actions don’t resolve the problem, try using a
different port or a different cable.

SFP
(1F~4F)
Speed

On (Green
or Amber)

A link is established with
the remote port.

Off

A link is not established with the remote port. You can do the
following:
• Check the Link LED to make sure the link is still
established with the remote port. If not, take the actions
described in the Meaning or Action column for the Link
LED.

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TABLE 19

3

Network connection-related LED states (Continued)

LED

Desired
State

Meaning

Abnormal State Meaning or Action

SFP+
(1F~4F)
Link or
Activity

On Green

A link is established with
the remote port.

Off

A link is not established with the remote port. You can do the
following:
• Verify that the connection to the other network device has
been properly made. Also, make certain that the other
network device is powered on and operating correctly.
• Verify that the transmit port on the Dell device is
connected to the receive port on the other network device,
and that the receive port on the Dell device is connected
to the transmit port on the other network device. If you are
not certain, remove the two cable connectors from the
port connector and reinsert them in the port connector,
reversing their order.
• Dust may have accumulated in the cable connector or port
connector. For information about cleaning the connectors,
refer to “Cleaning the fiber optic connectors” on page 43.
• Verify that the port has not been disabled through a
configuration change.
• Check that the configuration has not forced the use of the
RJ45 port shared with the SFP port.
• If the other actions don’t resolve the problem, try using a
different port or a different cable.

SFP+
(1F~4F)
Speed

On (Green
or Amber)

A link is established with
the remote port.

Off

A link is not established with the remote port. You can do the
following:
• Check the Link LED to make sure the link is still
established with the remote port. If not, take the actions
described in the Meaning or Action column for the Link
LED.

If a problem persists after taking these actions, contact Dell Technical Support.

Tracing a route
To determine the path through which a Dell device can reach another device, enter a command
similar to the following at any level of the CLI on the device.
PowerConnect> traceroute 192.33.4.7

Syntax: traceroute  [maxttl ] [minttl ] [numeric] [timeout ]
[source-ip ]
The CLI displays trace route information for each hop as soon as the information is received.
Traceroute requests display all responses to a given TTL. In addition, if there are multiple equal-cost
routes to the destination, the Dell device displays up to two responses by default.

Troubleshooting network connections
• For the indicated port, verify that both ends of the cabling (at the device and the connected
device) are snug.

• Verify that the device and the connected device are both powered on and operating correctly.

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• Verify that you have used the correct cable type for the connection:
- For twisted-pair connections to an end node, use straight-through cabling.
- For fiber optic connections, verify that the transmit port on the device is connected to the
receive port on the connected device, and that the receive port on the device is connected
to the transmit port on the connected device.

• Use the CLI to verify that the port has not been disabled through a configuration change. If you
have configured an IP address on the device, you also can use the Web management interface
or Brocade Network Advisor.

• If the other procedures don’t resolve the problem, try using a different port or a different cable.

Using Virtual Cable Testing to diagnose a cable
These devices support Virtual Cable Test (VCT) technology. VCT technology enables you to diagnose
a conductor (wire or cable) by sending a pulsed signal into the conductor, then examining the
reflection of that pulse. This method of cable analysis is referred to as Time Domain Reflectometry
(TDR). By examining the reflection, the device can detect and report cable statistics such as local
and remote link pair, cable length, and link status.

Configuration notes
• This feature is supported on copper ports only. It is not supported on fiber ports.
• The port to which the cable is connected must be enabled when you issue the command to
diagnose the cable. If the port is disabled, the command is rejected.

• If the port is operating at 100 Mbps half-duplex, the TDR test on one pair will fail.
• If the remote pair is set to forced 100 Mbps, any change in MDI or MDIX may cause the device
to interpret the Multilevel Threshold-3 (MLT-3) as a reflected pulse, in which case, the device
will report a faulty condition. In this case, Dell recommends that you run the TDR test a few
times for accurate results.

Command syntax
To diagnose a cable using TDR, enter a command such as the following at the Privileged EXEC level
of the CLI.
PowerConnect# phy cable-diag tdr 1/1/1

This command diagnoses the cable attached to port 1/1/1.
Syntax: phy cable-diag tdr 

Viewing the results of the cable analysis
To display the results of the cable analysis, enter a command similar to the following at the
Privileged EXEC level of the CLI.
PowerConnect# show cable-diag tdr 1/1/1

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The output from this command appears below.
PowerConnect# show cable-diag tdr 1/1/1
Port
Speed Local pair Pair Length Remote pair
--------- ----- ---------- ----------- ----------1/1/1
1000M Pair A
<50M
Pair B
Pair B
<50M
Pair A
Pair C
<50M
Pair D
Pair D
<50M
Pair C

Pair status
----------Terminated
Terminated
Terminated
Terminated

Syntax: show cable-diag tdr 
Table 20 defines the fields shown in this output.

TABLE 20

Cable statistics

This Line...

Displays...

Port

The port that was tested.

Speed

The current line speed of the port.

Local pair

The local link name.

Pair Length

The cable length when terminated, or the distance to the point of fault when the line
is not up.

Remote pair

The remote link name.

Pair status

The status of the link. This field displays one of the following:
Terminated: The link is up.
Shorted: A short is detected in the cable.
Open: An opening is detected in the cable.
ImpedMis: The impedance is mismatched.
Failed: The TDR test failed.

•
•
•
•
•

Digital optical monitoring
You can configure your device to monitor optical transceivers in the system, either globally or by
specified port. When this feature is enabled, the system monitors the temperature and signal
power levels for the optical transceivers in the specified ports. Console messages and syslog
messages are sent when optical operating conditions fall below or rise above the XFP, SFP, and
SFP+ manufacturer’s recommended thresholds. For more information about digital optical
monitoring, refer to PowerConnect B-FCX Series Configuration Guide.

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Managing the PowerConnect B-FCX Hardware

4

CAUTION
The procedures in this manual are for qualified service personnel.

Managing temperature settings
This section describes how to display temperature settings on the device and how to change the
temperature warning and shutdown levels.

Using the temperature sensor
The device ships with three built-in temperature sensors that cause the device to generate a Syslog
message and SNMP trap if the temperature exceeds a specified warning level or shutdown level. If
the device temperature exceeds the safe threshold (shutdown level), the device will reboot.
The software reads the temperature sensors based on the device poll time, which is by default 60
seconds. If the temperature equals or exceeds the shutdown temperature for five consecutive polls
by the software, the software will reboot the device to prevent damage.
You can use the CLI or Web management interface to perform the following tasks:

• Display the temperature of the device
• Change the warning and shutdown temperature levels
• Change the device poll time

Displaying the temperature
By default, the software polls the temperature sensor every 60 seconds to get the current
temperature. This poll rate is controlled by the device poll time, which also controls how often the
software polls other system components.
To display the temperature of a device, enter the show chassis command at any level of the CLI.
PowerConnect# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA - AC - Regular) present, status ok
Power supply 2 not present
Fan ok, speed (auto): [[1]]<->2<->3
Fan speed switching temperature thresholds:
1 -> 2 @ 61 deg-C
1 <- 2 @ 56 deg-C
2 -> 3 @ 67 deg-C
2 <- 3 @ 62 deg-C
MAC 1 Temperature Readings:
Current temperature : 50.5 deg-C

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Warning level.......: 80.0 deg-C
Shutdown level......: 90.0 deg-C
CPU Temperature Readings:
Current temperature : 49.0 deg-C
Boot Prom MAC : 0012.f2d4.69c0
Management MAC: 0012.f2d4.69c0

Syntax: show chassis

Displaying Syslog messages for temperature
The software sends a Syslog message and an SNMP trap if the temperature crosses the warning or
shutdown thresholds. The following methods describe how to view the system log on the device. If
you have configured the device to use a Syslog server or SNMP trap receiver, see the
documentation for the server or receiver.
To display the system log, enter the show log command at any CLI level.
PowerConnect# show log
Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)
Buffer logging: level ACDMEINW, 8 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warning
Static Log Buffer:
Dynamic Log Buffer (50 entries):
at 0 days 0 hours 2 minutes 0 seconds, level alert
Temperature 48.0 C degrees, warning level 45.0 C degrees, shutdown level 55.0 C
degrees
at 0 days 0 hours 1 minutes 0 seconds, level alert
Temperature 40.0 C degrees, warning level 35.0 C degrees, shutdown level 45.0 C
degrees

Changing temperature warning and shutdown levels
The default warning temperatures and the default shutdown temperatures for the device are:
- Warning temperature is 85 Deg-C (measured on mainboard)
- Shutdown temperature is 90 Deg-C (measured on mainboard)

NOTE

These temperatures reflect the temperature of the board inside the device.
To change the temperature at which the device sends a warning, enter a command similar to the
following at the Privileged EXEC level of the CLI:
PowerConnect# temperature warning 1 85

Syntax: temperature warning  
The  can be 1 – 8.
The  can be 0 – 125
To disoplay the current temperature readings, enter the temp command as shown.

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4

PowerConnect# temperature
temperature
temperature sensor commands
PowerConnect# temperature warning
warning
Temperature at which the module sends a warning
PowerConnect# temperature warning
DECIMAL
Stack Number
PowerConnect# temperature warning 1 87
PowerConnect# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA - AC - Regular) present, status ok
Power supply 2 not present
Fan ok, speed (auto): [[1]]<->2<->3
Fan speed switching temperature thresholds:
1 -> 2 @ 61 deg-C
1 <- 2 @ 56 deg-C
2 -> 3 @ 67 deg-C
2 <- 3 @ 62 deg-C
MAC 1 Temperature Readings:
Current temperature : 51.5 deg-C
Warning level.......: 87.0 deg-C
Shutdown level......: 90.0 deg-C
CPU Temperature Readings:
Current temperature : 51.0 deg-C
Boot Prom MAC : 0012.f2d4.69c0
Management MAC: 0012.f2d4.69c0

Changing the shutdown temperature
You can change the shutdown temperature using the fan-threshold command as shown. The valid
range is 0-125 deg-C.
PowerConnect(config)# stack unit 1
PowerConnect(config-unit-1)# fan-threshold mp speed-3 62 95
PowerConnect(config-unit-1)# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA - AC - Regular) present, status ok
Power supply 2 not present
Fan ok, speed (auto): [[1]]<->2<->3
Fan speed switching temperature thresholds:
1 -> 2 @ 61 deg-C
1 <- 2 @ 56 deg-C
2 -> 3 @ 67 deg-C
2 <- 3 @ 62 deg-C
MAC 1 Temperature Readings:
Current temperature : 56.5 deg-C
Warning level.......: 85.0 deg-C
Shutdown level......: 95.0 deg-C
CPU Temperature Readings:
Current temperature : 53.0 deg-C
Boot Prom MAC : 0012.f2d4.69c0
Management MAC: 0012.f2d4.69c0
PowerConnect(config-unit-1)#

Syntax: fan-threshold speed-3 mp  
The device will automatically reset and reload the software when the internal temperature reaches
or exceeds the configured shutdown level for five minutes. The system is also capable of registering
negative temperature settings.

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Managing temperature settings

To change the temperature at which the PowerConnect B-FCX sends a warning, you must change
the fan speed threshold. To view the current temperature thresholds, enter the show chassis
command:
PowerConnect# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA-AC-Regular)present, status ok
Power supply 2 not present
Fan ok, speed (auto): 1<->[[2]]<->3
Fan ok, speed (auto): 1<->[[2]]<->3
Fan speed switching temperature thresholds:
1 -> 2 @ 53 deg-C
1 <- 2 @ 37 deg-C
2 -> 3 @ 55 deg-C
2 <- 3 @ 50 deg-C
MAC 1 Temperature Readings:
Current temperature : 53.0 deg-C
MAC 2 Temperature Readings:
Current temperature : 53.0 deg-C
Temperature Readings:
Current temperature : 53.0 deg-C
Warning level.......: 60.0 deg-C
Shutdown level......: 80.0 deg-C
CPU Temperature Readings:
Current temperature : 47.5 deg-C

Enter a command to the following to change the temperature shutdown level from 80 deg-C to 90
deg-C.
PowerConnect#stack unit 1
PowerConnect(config-unit-1)#fan-threshold mp speed-3 50 90

Syntax: fan-threshold speed-3 mp  
The  can be 0 – 125.
Enter the show chassis command to confirm the change:
PowerConnect# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA-AC-Regular)present, status ok
Power supply 2 not present
Fan ok, speed (auto): 1<->[[2]]<->3
Fan ok, speed (auto): 1<->[[2]]<->3
Fan speed switching temperature thresholds:
1 -> 2 @ 53 deg-C
1 <- 2 @ 37 deg-C
2 -> 3 @ 55 deg-C
2 <- 3 @ 50 deg-C
MAC 1 Temperature Readings:
Current temperature : 53.0 deg-C
MAC 2 Temperature Readings:
Current temperature : 53.0 deg-C
Temperature Readings:
Current temperature : 53.0 deg-C
Warning level.......: 60.0 deg-C
Shutdown level......: 90.0 deg-C
CPU Temperature Readings:
Current temperature : 47.5 deg-C

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Displaying PowerConnect B-FCX CPU usage

Changing the temperature polling interval
The software reads the temperature sensor and polls other hardware sensors according to the
value set for the poll time, which is 60 seconds by default. You can change the poll time using the
CLI.
To change the poll time, enter a command similar to the following at the global CONFIG level:
PowerConnect(config)# chassis poll-time 2 200

Syntax: chassis poll-time 
The  can be 1 – 8
The  can be 0 – 65535.

Removing MAC address entries
You can remove the following types of learned MAC address entries from the system MAC address
table:

•
•
•
•

All MAC address entries
All MAC address entries for a specified Ethernet port
All MAC address entries for a specified VLAN
A specified MAC address entry in all VLANs

For example, to remove entries for the MAC address 000d.cb80.00d in all VLANs, enter the
following command at the Privileged EXEC level of the CLI:
PowerConnect# clear mac-address 000d.cb80.00d0

Syntax: clear mac-address  | ethernet  | vlan 
If you enter the clear mac-address command without any parameters, the software removes all
MAC entries.
Use the  parameter to remove a specified MAC address from all VLANs. Specify the
MAC address in the following format: HHHH.HHHH.HHHH.
Use the ethernet  parameter to remove all MAC addresses for a specified Ethernet port.
Use the vlan  parameter to remove all MAC addresses for a specified VLAN.

Displaying PowerConnect B-FCX CPU usage
You can display the amount of the PowerConnect B-FCX CPU in use. To do so, enter the show cpu
command at any level of the CLI:
PowerConnect# show cpu
31 percent busy, from 3248 sec ago
1
sec avg: 10 percent busy
5
sec avg: 10 percent busy
60 sec avg: 10 percent busy
300 sec avg: 10 percent busy

Syntax: show cpu

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Hardware maintenance schedule

Hardware maintenance schedule
PowerConnect B-FCX switch hardware components require minimal maintenance. Dell
recommends cleaning the fiber-optic connectors on a fiber-optic port and the connected fiber cable
each time you disconnect the cable.
You can replace the copper and fiber optic modules (SFPs or mini-GBICs).

Replacing a copper or fiber optic module
You can remove an SFP from a slot and replace it with a new one while the PowerConnect B-FCX is
powered on and running.
This section provides information about the following tasks:

• Removing a copper or fiber optic module
• Installing a new copper or fiber optic module
• Cabling a fiber optic module

Removing a copper or fiber optic module
You can remove a copper or fiber SFP (also called a mini-GBIC) from a slot while the PowerConnect
B-FCX is powered on and running.
While removing a copper or fiber optic module, be sure to wear an ESD wrist strap with a plug for
connection to the ESD connector on the PowerConnect B-FCX.

CAUTION
For safety reasons, the ESD wrist strap should contain a series 1 meg ohm resistor.
To remove a copper or fiber optic module from an SFP slot, do the following.
1. Put on the ESD wrist strap and ground yourself by attaching the clip end to a metal surface
(such as an equipment rack).
2. Disconnect the copper or fiber cable connector from the port connector.
3. Unlock the copper or fiber optic module by pulling the bail latch forward, away from the front
panel of the module.
On 1000BaseSX ports, the bail latch is enclosed in a black sleeve, and on 1000BaseLX ports,
the bail latch is enclosed in a blue sleeve.

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Replacing a copper or fiber optic module

FIGURE 36

Unlocking the bail latch

1

1

Bail Latch

FIGURE 37

Removing the bail latch

NOTE

The bail latch may be attached to either the top or the bottom of the mini-GBIC.
4. Grasp the bail latch and pull the copper or fiber optic module out of the port.

FIGURE 38

Remove fiber optic module

5. Store the copper or fiber optic module in a safe, static-free place or in an anti-static bag.
6. Install a new copper or fiber optic module in the port.

Cabling a fiber optic module
For instructions on cabling a fiber optic module refer to “Cabling a fiber optic transceiver” on
page 42.

Cleaning the fiber optic connectors
For instructions on cleaning a fiber optic module refer to “Cleaning the fiber optic connectors” on
page 43.

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Replacing a copper or fiber optic module

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5

Hardware Specifications

Hardware specifications
This chapter provides the hardware specifications for PowerConnect B-FCX devices.

Physical dimensions and weight
Table 21 lists the physical dimensions and weight for the PowerConnect B-FCX devices.

TABLE 21

Physical dimensions and weight

Model

Height

Width

Depth

Weight

PowerConnect
B-FCX624s,
PowerConnect
B-FCX648s

4.4 cm
1.7 in

44 cm
17.32 in

38.6 cm
15.19 in

4 kg (8.8 lbs)

PowerConnect
B-FCX624

4.4 cm
1.7 in

44 cm
17.32 in

43.5 cm
17.13 in

5.35 kg (11.79 lbs)

PowerConnect
B-FCX648

4.4 cm
1.7 in

44 cm
17.32 in

43.5 cm
17.13 in

5.71 kg (12.59 lbs)

Environmental considerations
For optimal performance, operate or store your device in compliance with the following
environmental conditions.

Operating Environment
Table 22 provides the operating environment specifications.

TABLE 22

Operating environment

Operating Temperature

Relative Humidity

Operating Altitude

0 – 40 C (32 – 104 F)

5 to 95%, @ 40 C (104.9F), non-condensing

0 – 3000 meters (10,000 feet)

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Storage environment
Table 23 provides the storage environment specifications.

TABLE 23

Storage environment specifications

Storage Temperature

Storage Humidity

Storage Altitude

40× to 70× C
(-40× to 158× F)

95% maximum,
non-condensing

3,000 meter (10,000 feet)
maximum

Cooling system and fans
The fans cool the CPU, main memory, and voltage regulators. For the PowerConnect B-FCX624s
and PowerConnect B-FCX648s switches, the fans use either a push or pull configuration to move
the air from the right side of the device to the left side of the device.

• Total cooling capacity: 80 to 130 watts
• Total air flow: 34.3 CFM
• Operating noise: ideal 51 dB-A
For the PowerConnect B-FCX624E and PowerConnect B-FCX648E models, the air flows from the
front to the back (FtB) of the device. For the PowerConnect B-FCX624I and PowerConnect
B-FCX648I models, the air flows from the back to the front (BtF) of the device.

• Total cooling capacity: 180 Watts
• Total air flow: 85.2 CFM
• Operating noise: ideal 60 dB-A
NOTE
Operating noise is based on the ISO 7779 standard.
Figure 39 shows the airflow for the PowerConnect B-FCX624s and PowerConnect B-FCX648s
models. Figure 40 shows airflow for PowerConnect B-FCX624-E and PowerConnect B-FCX648-E
devices and Figure 41 shows airflow for PowerConnect B-FCX624-I and PowerConnect B-FCX648-I
devices.

CAUTION
For the PowerConnect B-FCX624E, PowerConnect B-FCX624I, PowerConnect B-FCX648E, and
PowerConnect B-FCX648I devices, be sure that the airflow direction of the power supply unit
matches that of the installed fan tray. The power supplies and fan trays are clearly labeled with
either a green arrow with an “E”, or an orange arrow with an “I” as shown in Table 1 on page 3.
For an illustration of the fan tray labels, see “Power supply and fan tray labels for PowerConnect
B-FCX624-E, PowerConnect B-FCX624-I, PowerConnect B-FCX648-E, and PowerConnect
B-FCX648-I devices” on page 3.

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FIGURE 39

5

PowerConnect B-FCX624s and PowerConnect B-FCX648s device airflow

1

2
1 Air Inflow
2 Air outlet

FIGURE 40

PowerConnect B-FCX624-E and PowerConnect B-FCX648-E device airflow

2

Mgmt

Cons Reset
ole

PS

1

2

Diag

1
3
5
7
9
11
13

2

15

4

17

6

19

8

21

10

23

12
14
16
18
20
22

24

1
1 Air Inflow
2 Air outlet

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FIGURE 41

PowerConnect B-FCX624-I and PowerConnect B-FCX648-I device airflow

1

Mgmt

Cons Reset
ole

PS

1

2

Diag

1
3
5
7
9
11
13

2

15

4

17

6

19

8

21

10

23

12
14
16
18
20
22

2

24

1 Air Inflow
2 Air outlet
For a complete list of regulatory compliances refer to “Regulatory compliance” on page 69.

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Pinouts and signalling
This section describes the pinout diagrams for the DB-9 connector and RJ45 port jacks.

Serial (Console) port pinouts
The Console port is a standard male DB-9 connector, as shown in Figure 42.

FIGURE 42

Serial port pinouts

1

6

5

9

Most PC serial ports require a cable with a female DB-9 connector. However, terminal connections
will vary, requiring a cable with either a DB-9 or DB-25 connector, male or female.
Serial cable options between the PowerConnect B-FCX switch and a PC or terminal are shown in
Figure 43.

NOTE
As indicated in Figure 43 and Figure 44, some of the wires should not be connected. If you do
connect the wires that are labeled “Reserved”, you may get unexpected results with some terminals.

FIGURE 43

Console port pin assignments showing cable connection options to a terminal or PC

DB-9 to DB-9
Female Switch

Terminal or PC

DB-9 to DB-25
Female Switch

1

1

2

2

2

3

3

3

3

2

4

4

5

5

6

6

7

7

7

4

8

8

8

5

9

9

1

4

Reserved

Reserved

5
6

9

Reserved

Reserved

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Terminal or PC
Reserved

Reserved

8

20
7

Reserved

Reserved

6

22

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Hardware specifications

FIGURE 44

Pin assignment and signalling for 10/100BaseTX and 1000BaseT ports

100BaseTX and 1000BaseT

10BaseT
Pin Number MDI-X ports

Pin Assignment

8

1

1

8

1
2
3
4
5
6
7
8

Pin Number MDI-X ports

1
2
3
4
5
6
7
8

RD+
RDTD+
Not used
Not used
TDNot used
Not used

RD+
RDTD+
CMT
CMT
TDCMT
CMT

Cable specifications
Table 24 lists the specifications for the cables used with the 10/100 Ethernet ports. For
information about supported transceivers, see Table 17 and Table 18.

NOTE
Cable installation and network configuration will affect overall transmission capability. The numbers
provided below represent the accepted recommendations of the various standards. For
network-specific recommendations, consult your local Dell reseller or system engineer.

TABLE 24

Cable length summary
Cable Type

Connector Type

Core Diameter
(microns)

Modal Bandwidth
(MHz*km) or
Wavelength (nm)

Range (meters)

1000Base-BX-D

Single-mode
Fiber (SMF)

LC connector for SFP module

9

1490 nm

2 – 10000 (10km)

1000Base-BX-U

SMF

LC connector for SFP module

9

1310 nm

2 – 10000 (10km)

1000Base-LHA

SMF

LC connector for SFP module

9

1550 nm

2 – 70000 (70km)

1000Base-LHB

SMF

LC connector for SFP module

9

1550 nm

2 – 120000
(120km)

1000Base-LX

Multi-mode
Fiber (MMF)

LC connector for SFP module

62.5

500

2 – 550

MMF

50

400

2 – 550

MMF

50

500

2 – 550

SMF

9

1300 nm

2 – 10000

62.5/125

200

.5 – 275

MMF

62.5/125

500

.5 – 550

MMF

50/125

900

.5 – 595

MMF

50/125

1500

.5 – 740

MMF

50/125

2000

.5 – 860

1000Base-SX

62

MMF

LC connector for SFP module

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TABLE 24

5

Cable length summary (Continued)
Cable Type

Connector Type

Core Diameter
(microns)

Modal Bandwidth
(MHz*km) or
Wavelength (nm)

Range (meters)

1000Base-T

Copper

RJ-45 jack for standard
unshielded twisted pair (UTP
or Category 5)

n/a

n/a

up to 100 meters

100Base-BX-U
100Base-BX-D

SMF

LC connector for SFP module

9

1310/1490

10000 (10 km)

100Base-FX

MMF

LC connector for SFP module

62.5

500

up to 2000 (2 km)

100Base-FX-IR

MMF

SC

62.5

125

2 km (1.24 miles)

100Base-FX-LR

SMF

SC

9

125

20 km
(12.43 miles)

10GBase-CX4

Infiniband 4x
copper

XAUI connector

n/a

n/a

up to 15

10G SFP+

TWNX

SFP

n/a

n/a

up to 15

Power cords
All devices ship with US-compatible power cords unless otherwise specified at the time of order.
United Kingdom- and European-compatible power cords are also available.

AC power supply specifications
All devices ship with one removable AC power supply unit with a standard IEC type (IEC320) input
connector, operating 100 VAC to 240 VAC input, universal or wide input. Table 25 lists the AC power
supply specifications for these devices.

NOTE

For Class 1, 2, or 3 power usage, these devices can support up to 48 ports.

TABLE 25

AC power supply specifications
Input voltage range

Input current
(PSU x 1)

Inrush current

Power draw

Max output power
(PSU x1)

PowerConnect
B-FCX624s

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

93.67 W

210 W

PowerConnect
B-FCX648s

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

122.62 W

210 W

PowerConnect
B-FCX624-E

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

57.36 W

210 W

PowerConnect
B-FCX624-I

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

57.36 W

210 W

PowerConnect
B-FCX648-E

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

57.36 W

210 W

PowerConnect
B-FCX648-I

100 - 240 VAC

1.2 - 2.8 Amps

< 75 Amps peak
maximum

57.36 W

210 W

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6

Troubleshooting

Diagnosing switch indicators
TABLE 26

Troubleshooting chart

Symptom

Action

Power LED is Off

•
•
•

Power LED is Amber

Internal power supply has failed. Contact Technical Support.

Diag LED is Amber

•
•

The switch self test has detected a fault.
Power cycle the switch to try and clear the condition. If the condition persists,
contact Technical Support.

Link LED is Off

•
•
•

Verify that the switch and attached device are powered on.
Be sure the cable is plugged into both the switch and corresponding device.
Verify that the proper cable type is used and its length does not exceed specified
limits.
Check the adapter on the attached device and cable connections for possible
defects. Replace the defective adapter or cable if necessary.

•

Internal power supply is disconnected.
Check connections between the switch, the power cord, and the wall outlet.
Contact Technical Support.

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. 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 fans on the unit are 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
Technical Support for assistance.

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

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Diagnosing switch indicators

In-band access
You can access the management agent in the switch from anywhere within the attached network
using Telnet, a Web browser, or other network management software. However, you must first
configure the switch with a valid IP address, subnet mask, and default gateway. If you have trouble
establishing a link to the management agent, check to see if you have a valid network connection.
Then verify that you entered the correct IP address. Also, be sure the port through which you are
connecting to the switch has not been disabled. If it has not been disabled, then check the network
cabling that runs between your remote location and the switch.

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Regulatory Statements

A

USA (FCC CFR 47 Part 15 Warning)
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.

CAUTION
Changes or modifications made to this device which are not expressly approved by Dell could
void the user’s authority to operate the equipment.

Industry Canada statement
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.
English Translation of above statement
This Class A digital apparatus complies with Canadian ICES-003.

Europe and Australia (CISPR 22 Class A Warning)
This is a Class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.

Japan (VCCI)

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A

Japan power cord

English translation of above statement
This is Class A product based on the standard of the Voluntary Control Council For Interference by
Information Technology Equipment (VCCI). If this equipment is used in a domestic environment,
radio disturbance may arise. When such trouble occurs, the user may be required to take corrective
actions.

Japan power cord

English translation of above statement
ATTENTION: Never use the power cord packed with your equipment for other products.

Korea
Class A statement
A 급 기기 ( 업무용 방송통신기기 ): 이 기기는 업무용 (A 급 ) 으로 전자파적합등록
을 한 기기이오니 판매자 또는 사용자는 이 점을 주의하시기 바라며 , 가정외의 지역
에서 사용하는 것을 목적으로 합니다 .
English Translation of Above Statement
Class A device (Broadcasting Communication Device for Office Use): This device obtained EMC
registration for office use (Class A), and may be used in places other than home. Sellers and/or
users need to take note of this.

Russia
       "C     
     : 29   2009 .  29   2012 .

68

"  -2--0560,

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A

English translation of above statement
Certificate of Conformity in "Certification System in the field of telecommunications" #
ОС-2-СПД-0560, validity from the 29 of October 2009 to the 29 of October 2012.

Regulatory compliance
Table 27 lists the Electromagnetic Compatibility (EMC), Immunity standards, and safety agency
approvals for the PowerConnect B-FCX family of switches.

TABLE 27
.

Regulatory Compliance and Safety Approvals

Certifications
Emissions:
• ICES-003, Electromagnetic Emission
• FCC Part 15 Class A
• EN 55022/CISPR 22 Class A
• VCCI Class A
• EN 61000-3-2, Power Line Harmonics
• EN 61000-3-3, Voltage Fluctuation & Flicker
• EN 61000-6-3, Electromagnetic Compatibility, Generic Standard
• AS or NZS CISPR 22, Electromagnetic Compatibility
Immunity:
• EN 61000-6-1, Electromagnetic Compatibility, Generic Standard
• EN 55024, Information Technology equipment - Immunity
Characteristics
Safety:
• BI-NAT-CSA 60950-1-07/UL 60950-1-07
• EN 60950-1:2006 +A11:2009
• IEC 60950-1:2005

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Cautions and Danger Notices

B

Cautions
A caution calls your attention to a possible hazard that can damage equipment.
“Vorsicht” weist auf die Gefahr einer möglichen Beschädigung des Gerätes in.
Une mise en garde attire votre attention sur un risque possible d'endommagement de
l'équipement. Ci-dessous, vous trouverez les mises en garde utilisées dans ce manuel.
Un mensaje de precaución le advierte sobre un posible peligro que pueda dañar el equipo. Las
siguientes son precauciones utilizadas en este manual.
CAUTION

Do not install the device in an environment where the operating ambient temperature
might exceed 40° C (104° F).

VORSICHT

Das Gerät darf nicht in einer Umgebung mit einer Umgebungsbetriebstemperatur von
über 40° C (104° F) installiert werden.

MISE EN GARDE

N'installez pas le dispositif dans un environnement où la température d'exploitation
ambiante risque de dépasser 40° C (104° F).

PRECAUCIÓN

No instale el instrumento en un entorno en el que la temperatura ambiente de
operación pueda exceder los 40°C (104°F).

CAUTION

Make sure the air flow around the front, sides, and back of the device is not restricted.

VORSICHT

Stellen Sie sicher, dass an der Vorderseite, den Seiten und an der Rückseite der
Luftstrom nicht behindert wird.

MISE EN GARDE

Vérifiez que rien ne restreint la circulation d'air devant, derrière et sur les côtés du
dispositif et qu'elle peut se faire librement.

PRECAUCIÓN

Asegúrese de que el flujo de aire en las inmediaciones de las partes anterior, laterales y
posterior del instrumento no esté restringido.

CAUTION

Use a separate branch circuit for each AC power cord, which provides redundancy in case
one of the circuits fails.

VORSICHT

Es empfiehlt sich die Installation eines separaten Stromkreiszweiges für jede
Wechselstrom-Elektroschnur als Redundanz im Fall des Ausfalls eines Stromkreises.

MISE EN GARDE

Utilisez un circuit de dérivation différent pour chaque cordon d’alimentation C.A. Ainsi, il y
aura un circuit redondant en cas de panne d’un des circuits.

PRECAUCIÓN

Use un circuito derivado separado para cada cordón de alimentación de CA, con lo que se
proporcionará redundancia en caso de que uno de los circuitos falle.

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72

Cautions

CAUTION

Ensure that the device does not overload the power circuits, wiring, and over-current
protection. To determine the possibility of overloading the supply circuits, add the ampere
(amp) ratings of all devices installed on the same circuit as the device. Compare this total
with the rating limit for the circuit. The maximum ampere ratings are usually printed on
the devices near the input power connectors.

VORSICHT

Stromkreise, Verdrahtung und Überlastschutz dürfen nicht durch das Gerät überbelastet
werden. Addieren Sie die Nennstromleistung (in Ampere) aller Geräte, die am selben
Stromkreis wie das Gerät installiert sind. Somit können Sie feststellen, ob die Gefahr
einer Überbelastung der Versorgungsstromkreise vorliegt. Vergleichen Sie diese Summe
mit der Nennstromgrenze des Stromkreises. Die Höchstnennströme (in Ampere) stehen
normalerweise auf der Geräterückseite neben den Eingangsstromanschlüssen.

MISE EN GARDE

Assurez-vous que le dispositif ne risque pas de surcharger les circuits d'alimentation, le
câblage et la protection de surintensité. Pour déterminer le risque de surcharge des
circuits d'alimentation, additionnez l'intensité nominale (ampères) de tous les dispositifs
installés sur le même circuit que le dispositif en question. Comparez alors ce total avec la
limite de charge du circuit. L'intensité nominale maximum en ampères est généralement
imprimée sur chaque dispositif près des connecteurs d'entrée d'alimentation.

PRECAUCIÓN

Verifique que el instrumento no sobrecargue los circuitos de corriente, el cableado y la
protección para sobrecargas. Para determinar la posibilidad de sobrecarga en los
circuitos de suministros, añada las capacidades nominales de corriente (amp) de todos
los instrumentos instalados en el mismo circuito que el instrumento. Compare esta suma
con el límite nominal para el circuito. Las capacidades nominales de corriente máximas
están generalmente impresas en los instrumentos, cerca de los conectores de corriente
de entrada.

CAUTION

Use the erase startup-config command only for new systems. If you enter this command
on a system you have already configured, the command erases the configuration. If you
accidentally do erase the configuration on a configured system, enter the write memory
command to save the running configuration to the startup-config file.

VORSICHT

Verwenden Sie den Befehl "Erase startup-config" (Löschen Startup-Konfig) nur für neue
Systeme. Wenn Sie diesen Befehl in ein bereits konfiguriertes System eingeben, löscht
der Befehl die Konfiguration. Falls Sie aus Versehen die Konfiguration eines bereits
konfigurierten Systems löschen, geben Sie den Befehl "Write Memory" (Speicher
schreiben) ein, um die laufende Konfiguration in der Startup-Konfig-Datei zu speichern.

MISE EN GARDE

N'utilisez la commande erase startup-config que pour les nouveaux systèmes. Si vous
entrez cette commande sur un système que vous avez déjà configuré, elle efface la
configuration. Si vous effacez la configuration par accident sur un système configuré,
entrez la commande write memory pour enregistrer la configuration actuelle dans le
fichier startup-config.

PRECAUCIÓN

Use el comando erase startup-config (borrar configuración de inicio) para sistemas
nuevos solamente. Si usted introduce este comando en un sistema que ya ha
configurado, el comando borrará la configuración. Si usted borra accidentalmente la
configuración en un sistema ya configurado, introduzca el comando write memory
(escribir memoria) para guardar la configuración en ejecución en el archivo
startup-config.

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Danger notices

CAUTION

Never leave tools inside the chassis.

VORSICHT

Lassen Sie keine Werkzeuge im Chassis zurück.

MISE EN GARDE

Ne laissez jamais d'outils à l'intérieur du châssis.

PRECAUCIÓN

No deje nunca herramientas en el interior del chasis.

CAUTION

Changes or modifications made to this device that are not expressly approved by the
party responsible for compliance could void the user's authority to operate the
equipment.

VORSICHT

Falls dieses Gerät verändert oder modifiziert wird, ohne die ausdrückliche Genehmigung
der für die Einhaltung der Anforderungen verantwortlichen Partei einzuholen, kann dem
Benutzer der weitere Betrieb des Gerätes untersagt werden.

MISE EN GARDE

Les éventuelles modifications apportées à cet équipement sans avoir été expressément
approuvées par la partie responsable d'en évaluer la conformité sont susceptibles
d'annuler le droit de l'utilisateur à utiliser cet équipement.

PRECAUCIÓN

Si se realizan cambios o modificaciones en este dispositivo sin la autorización expresa de
la parte responsable del cumplimiento de las normas, la licencia del usuario para operar
este equipo puede quedar anulada.

Danger notices
A danger notification calls your attention to a possible hazard that can cause injury or death. The
following are the warnings used in this manual.
"Gefahr" weist auf eine mögliche Gefährdung hin, die zu Verletzungen oder Tod führen können. Sie
finden die folgenden Warnhinweise in diesem Handbuch:
Un danger attire votre attention sur un risque possible de blessure ou de décès. Ci-dessous, vous
trouverez les avertissements utilisés dans ce manuel.

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B

Danger notices

Una señal de peligro le llama la atención sobre cualquier posible peligro que pueda ocasionar
daños personales o la muerte. A continuación se dan las advertencias utilizadas en este manual.

74

DANGER

The procedures in this manual are for qualified service personnel.

GEFAHR

Die Verfahren in diesem Handbuch sind nur für qualifiziertes Wartungspersonal
gedacht.

DANGER

Les procédures décrites dans ce manuel doivent être effectuées par le personnel de
service qualifié uniquement.

PELIGRO

Los procedimientos de este manual se han hecho para personal de servicio
cualificado.

DANGER

Before beginning the installation, see the precautions in “Power precautions” on
page 17.

GEFAHR

Vor der Installation siehe Vorsichtsmaßnahmen unter " Power Precautions "
(Vorsichtsmaßnahmen in Bezug auf elektrische Ablagen) auf den Seiten 3-4.

DANGER

Avant de commencer l'installation, consultez les précautions décrites dans " Power
Precautions " (Précautions quant à l'alimentation), pages 3-4.

PELIGRO

Antes de comenzar la instalación, consulte las precauciones en la sección " Power
Precautions" (Precauciones sobre corriente) que se encuentra en las páginas 3-4.

DANGER

All fiber optic interfaces use Class 1 lasers.

GEFAHR

Alle Glasfaser-Schnittstellen verwenden Laser der Klasse 1.

DANGER

Toutes les interfaces en fibres optiques utilisent des lasers de classe 1.

PELIGRO

Todas las interfaces de fibra óptica utilizan láser de clase 1.

DANGER

Make sure the rack or cabinet housing the device is adequately secured to prevent it
from becoming unstable or falling over.

GEFAHR

Stellen Sie sicher, dass das Gestell oder der Schrank für die Unterbringung des
Geräts auf angemessene Weise gesichert ist, so dass das Gestell oder der Schrank
nicht wackeln oder umfallen kann.

DANGER

Vérifiez que le bâti ou le support abritant le dispositif est bien fixé afin qu'il ne
devienne pas instable ou qu'il ne risque pas de tomber.

PELIGRO

Verifique que el bastidor o armario que alberga el instrumento está asegurado
correctamente para evitar que pueda hacerse inestable o que caiga.

DANGER

Mount the devices you install in a rack or cabinet as low as possible. Place the heaviest
device at the bottom and progressively place lighter devices above.

GEFAHR

Montieren Sie die Geräte im Gestell oder Schrank so tief wie möglich. Platzieren Sie
das schwerste Gerät ganz unten, während leichtere Geräte je nach Gewicht (je
schwerer desto tiefer) darüber untergebracht werden.

DANGER

Montez les dispositifs que vous installez dans un bâti ou support aussi bas que
possible. Placez le dispositif le plus lourd en bas et le plus léger en haut, en plaçant
tous les dispositifs progressivement de bas en haut du plus lourd au plus léger.

PELIGRO

Monte los instrumentos que instale en un bastidor o armario lo más bajos posible.
Ponga el instrumento más pesado en la parte inferior y los instrumentos
progresivamente más livianos más arriba.

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Danger notices

DANGER

Disconnect the power cord from all power sources to completely remove power from the
device.

GEFAHR

Ziehen Sie das Stromkabel aus allen Stromquellen, um sicherzustellen, dass dem
Gerät kein Strom zugeführt wird.

DANGER

Débranchez le cordon d'alimentation de toutes les sources d'alimentation pour couper
complètement l'alimentation du dispositif.

PELIGRO

Para desconectar completamente la corriente del instrumento, desconecte el cordón
de corriente de todas las fuentes de corriente.

DANGER

If the installation requires a different power cord than the one supplied with the device,
make sure you use a power cord displaying the mark of the safety agency that defines
the regulations for power cords in your country. The mark is your assurance that the
power cord can be used safely with the device.

GEFAHR

Falls für die Installation ein anderes Stromkabel erforderlich ist (wenn das mit dem
Gerät gelieferte Kabel nicht passt), müssen Sie sicherstellen, dass Sie ein Stromkabel
mit dem Siegel einer Sicherheitsbehörde verwenden, die für die Zertifizierung von
Stromkabeln in Ihrem Land zuständig ist. Das Siegel ist Ihre Garantie, dass das
Stromkabel sicher mit Ihrem Gerät verwendet werden kann.

DANGER

Si l'installation nécessite un cordon d'alimentation autre que celui fourni avec le
dispositif, assurez-vous d'utiliser un cordon d'alimentation portant la marque de
l'organisation responsable de la sécurité qui définit les normes et régulations pour les
cordons d'alimentation dans votre pays. Cette marque vous assure que vous pouvez
utiliser le cordon d'alimentation avec le dispositif en toute sécurité.

PELIGRO

Si la instalación requiere un cordón de corriente distinto al que se ha suministrado con
el instrumento, verifique que usa un cordón de corriente que venga con la marca de la
agencia de seguridad que defina las regulaciones para cordones de corriente en su
país. Esta marca será su garantía de que el cordón de corriente puede ser utilizado con
seguridad con el instrumento.

DANGER

For safety reasons, the ESD wrist strap should contain a series 1 meg ohm resistor.

GEFAHR

Aus Sicherheitsgründen sollte ein EGB-Armband zum Schutz von elektronischen
gefährdeten Bauelementen mit einem 1 Megaohm-Reihenwiderstand ausgestattet
sein.

DANGER

Pour des raisons de sécurité, la dragonne ESD doit contenir une résistance de
série 1 méga ohm.

PELIGRO

Por razones de seguridad, la correa de muñeca ESD deberá contener un resistor en
serie de 1 mega ohmio.

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