Smart Technologies 800 User Manual

Extending
USBConnections

SMARTBoard® 800 series interactive
whiteboards and systems

FCC warning

This equipment has been tested and found to comply wi th the li mits for a Class A digital device, pur suant to Part 15 of the FCC Rules. Thesel imits are designed to provide
reasonable protection against harmful inter ference when the equipmentis operatedi n a commercial environment. This equipment generates, uses andcan radiate radio
frequency energy and, if not installed and used in accordancewith the m anufacturer’s i nstructions, may cause harmful interference tor adio communications. Operation of
this equipm ent in a residential areai s likely to cause harmful inter ference in which case the user wil l ber equir ed to corr ect the interference at his own expense.

Trademark notice

SMARTBoard, SM ARTGoWire, sm arttech, the SMART l ogoand all SMART taglines are trademarks or r egistered trademarks of SMARTTechnologiesULC in the U.S.
and/or other countries. All third-par ty product and com pany nam es m ay be trademarks of their respective owner s.

Copyright notice

© 2012 SMARTTechnologiesULC. All r ights reserved. No part of this publicationm ay be reproduced, transmi tted, transcr ibed, stored in a retrieval system or translated
into any language in any for m by any m eans without theprior wri ttenconsent of SMARTTechnologiesU LC. Informationi n this manual is subject to change without notice
and does not repr esent a commitm ent on the part of SM ART.

April, 2012

Contents

Chapter 1: Extending the USB of SMARTBoard 800 series interactive whiteboards 1

Extending the USB with a bus-powered (active) extension cable 2
Extending the USB with a CAT5-XT-1100 (active) extender 3
Extending the USB with an SBX800 CAT5-XT extender 5

Chapter 2: Extending the USB of SMARTBoard 800i series interactive whiteboard systems 7

Extending the USB with a bus-powered (active) extension cable 7
Extending the USB with a CAT5-XT-1100 (active) extender 10
Extending the USB with an SBX800 CAT5-XT extender 13

Appendix A: USB 2.0 specification primer 15

USB terminology 15
USB topology 17
Connecting USB devices 18
Powering USB devices 18
USB connectors and cables 19
Extending USB connections 21

Index 23

i

Chapter 1

SMARTBoard 800 series
interactive whiteboards

Extending the USB with a bus-powered (active) extension cable 2

Using a single USB-XT extension cable 2
Using multiple USB-XT extension cables 2

Extending the USB with a CAT5-XT-1100 (active) extender 3

Using a SMARTCAT5-XT-1100 extender 3
Using a CAT5-XT-1100 extender and a self-powered USB hub 3
Using a USB-XT extension cable or a SMARTGoWire™ auto-launch cable with a CAT5-XT-

1100 extender and a self-powered USB hub

Extending the USB with an SBX800 CAT5-XT extender 5

Using an SBX800CAT5-XT extender 5
Using a SMARTGoWire cable with an SBX800 CAT5-XT extender 5

4

This section illustrates how you can extend the USB connection between your computer and your

SMARTBoard® 800 series interactive whiteboard.

If you’re extending the USB connection to a SMARTBoard 800i series interactive whiteboard

system, see Extending the USB of SMARTBoard 800i series interactive whiteboard systems on

page 7.

1

C H A P T E R 1

Extending the USB of SMARTBoar d 800 seriesinteractive whiteboards

Extending the USB with a bus-powered (active) extension cable

You can use the SMARTUSB-XT extension cable to extend the 16' (5 m) USB cable included with

your interactive whiteboard.

Using a single USB-XT extension cable

Computer USB-XT USB cable

Interactive

whiteboard

Using multiple USB-XT extension cables

.....

Computer USB-XT USB-XT USB cable

N OT E S

l These aren’t plenum-rated solutions. Don’t route multiple USB-XT extension cables where

they aren’t accessible, for example, inside walls or ceilings.

l USB cable length must not exceed 16' (5 m). See USB connectors and cables on page 19

l The computer’s USB interface must provide sufficient power for the bus-powered extension

cables. A laptop might not provide sufficient power while running on battery power.

Interactive

whiteboard

l Don’t connect more than three USB-XT extension cables. The combined length of the

extender cables results in too much voltage drop to power another extender.

2

C H A P T E R 1

Extending the USB of SMARTBoar d 800 seriesinteractive whiteboards

Extending the USB with a CAT5-XT-1100 (active) extender

You can use the CAT5-XT-1100 extender to replace the 16' (5 m) USB cable included with your

interactive whiteboard.

Using a SMARTCAT5-XT-1100 extender

Computer

N OT E S

l The maximum Cat 5 cable length in this configuration is 131' (40 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered

CAT5-XT-1100 extender. A laptop might not provide sufficient power while running on battery

power.

CAT5-XT-1100

Cat 5 cable < 131' (40 m)

Interactive

whiteboard

Using a CAT5-XT-1100 extender and a self-powered USB hub

If you need to extend the cable from the CAT5-XT-1100 remote extender unit (REX) to the interactive

whiteboard, you must use a self-powered hub. CAT5-XT-1100 extenders don’t provide sufficient

power for a bus-powered USB extender.

Computer CAT5-XT-1100

Cat 5 cable < 92' (28 m)

3

Self-powered

USB hub

USB cable Interactive

whiteboard

C H A P T E R 1

Extending the USB of SMARTBoar d 800 seriesinteractive whiteboards

N OT E S

l Each USB hub or extender used with the CAT5-XT-1100 extender reduces the maximum

Cat 5 cable length by 40' (12 m). The Cat 5 cable in this configuration is limited to 92' (28 m)

(not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered

CAT5-XT-1100 extenders. A laptop might not provide sufficient power while running on

battery power.

l The length of the USB cable that connects the self-powered hub to the interactive whiteboard

must not exceed 16' (5 m). See Extending USB connections on page 21.

Using a USB-XT extension cable or a SMARTGoWire™ auto-launch
cable with a CAT5-XT-1100 extender and a self-powered USB hub

You can extend the USB connection from the computer to the CAT5-XT-1100 local extender unit

(LEX) using a USB-XT extension cable. You can substitute the SMARTGoWire cable for the

USB-XT extension cable.

Computer USB-XT or

SMARTGoWire

CAT5-XT-1100

Cat 5 cable < 52' (16 m)

Self-powered

USB hub

USB cable Interactive

whiteboard

cable

N OT E S

l Each USB hub or extender used with the CAT5-XT-1100 extender reduces the maximum Cat

5 cable length by 40' (12 m). The Cat 5 cable in this configuration is limited to 52' (16 m) (not

included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered USB-XT

extension cable and the bus-powered CAT5-XT-1100 extenders. A laptop might not provide

sufficient power while running on battery power.

l The length of the USB cable that connects the self-powered hub to the interactive whiteboard

must not exceed 16' (5 m). See USB connectors and cables on page 19.

4

C H A P T E R 1

Extending the USB of SMARTBoar d 800 seriesinteractive whiteboards

Extending the USB with an SBX800 CAT5-XT extender

You can use the SBX800CAT5-XT extender to extend the USB interface of your 800 series

interactive whiteboard.

Using an SBX800CAT5-XT extender

Computer SBX800

CAT5-XT

extender

N OT E S

l The maximum Cat 5 cable length in this configuration is 50' (15.25 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the USBconnection

adaptor. A laptop might not provide sufficient power while running on battery power.

Cat 5 cable

< 50' (15.25 m)

Pen tray

extender

module

Interactive

whiteboard

Using a SMARTGoWire cable with an SBX800 CAT5-XT extender

You can connect the computer to the SBX800 CAT5-XT remote extender unit (REX)using the

SMARTGoWire cable.

Computer SMARTGoWire

cable

5

SBX800

CAT5-XT

extender

Cat 5 cable

< 50' (15.25 m)

Pen tray

extender

module

Interactive

whiteboard

C H A P T E R 1

Extending the USB of SMARTBoar d 800 seriesinteractive whiteboards

N OT E S

l The maximum Cat 5 cable length in this configuration is 50' (15.25 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered

SMARTGoWire cable and the USBconnection adapter. A laptop might not provide sufficient

power while running on battery power.

6

Chapter 2

SMARTBoard 800i series
interactive whiteboard systems

Extending the USB with a bus-powered (active) extension cable 7

Using a single USB-XT extension cable 8
Using multiple USB-XT extension cables 9

Extending the USB with a CAT5-XT-1100 (active) extender 10

Using a CAT5-XT-1100 extender 10
Using a CAT5-XT-1100 extender and a self-powered USB hub 11
Using a USB-XT extension cable or a SMARTGoWire cable and a CAT5-XT-1100 extender 12

Extending the USB with an SBX800 CAT5-XT extender 13

Using an SBX800CAT5-XT extender 13
Using a SMARTGoWire cable with an SBX800 CAT5-XT extender 13

This section illustrates how you can extend the USB connection between your computer and your

SMARTBoard 800 series interactive whiteboard system.

SMARTinteractive whiteboard systems combine a SMARTBoard interactive whiteboard with a

SMART short throw or ultra-short-throw projector, a multiuser pen tray and a control panel that

enables teachers to manage all classroom technology products from the front of the classroom.

If you’re extending the USB connection to SMARTBoard 800 series interactive whiteboards that

aren’t connected to a SMARTprojector, see Extending the USB of SMARTBoard 800 series

interactive whiteboards on page 1.

Extending the USB with a bus-powered (active) extension cable

You can use the USB-XT extension cable to extend the 16' (5 m) USB A to mini-B cable included with

your interactive whiteboard system.

7

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

I M P O R T A N T

Connect your USB cables or extenders to the USB1 receptacle on the interactive whiteboard’s

extended control panel (ECP) module. Do not use the USB2 receptacle.

N OT E S

l You can connect the USB cable or extender to the SMARTBoard 800 series interactive

whiteboard system’s ECP module using the included USB A to mini-B cable or using a

standard USB cable with the mini-USB to USB adapter included with your system.

l SMARTBoard 800 series interactive whiteboard systems have a USB hub integrated into

the ECP module and are therefore compound devices. See USB topology on page 17.

Using a single USB-XT extension cable

Using the USB A to mini-B cable

Computer USB-XT USB A to

mini-B cable

Using a standard USB cable with the USB adaptor

Computer USB-XT Standard

USB cable

Interactive

whiteboard

system

USB

adapter

Interactive

whiteboard

system

8

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

Using multiple USB-XT extension cables

.....

Computer USB-XT USB-XT USB A to

mini B cable

Interactive

whiteboard

system

N OT E S

l These aren’t plenum-rated solutions. Don’t route multiple USB-XT extension cables where

they’re inaccessible, for example, inside walls or ceilings.

l USB cable lengths must not exceed 16' (5 m). See USB connectors and cables on page 19.

l The computer’s USB interface must provide sufficient power for the bus-powered extension

cables. A laptop might not provide sufficient power while running on battery power.

l Don’t connect more than three USB-XT extension cables. See Extending USB connections

on page 21.

9

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

Extending the USB with a CAT5-XT-1100 (active) extender

You can use the CAT5-XT-1100 extender to replace the 16' (5 m) USB A to mini-B cable included with

your interactive whiteboard.

I M P O R T A N T

Connect your USB cables or extenders to the USB1 receptacle on the interactive whiteboard’s

ECP module. Do not use the USB2 receptacle.

N OT E S

l You can connect the USB cable or extender to the SMARTBoard 800 series interactive

whiteboard system’s ECP module using the included USB A to mini B cable or using a

standard USB cable with the mini-USB to USB adaptor included with your system.

l SMARTBoard 800 series interactive whiteboard systems have a USB hub integrated into

the ECP module and are therefore compound devices. See USB topology on page 17.

Using a CAT5-XT-1100 extender

Computer

CAT5-XT-1100

Cat 5 cable < 92' (28 m)

USB

adapter

N OT E S

l The maximum Cat 5 cable length in this configuration is 92' (28 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered

CAT 5-XT-1100 extenders. A laptop might not provide sufficient power while running on

battery power.

Interactive

whiteboard

system

10

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

Using a CAT5-XT-1100 extender and a self-powered USB hub

If you need to extend the cable from a CAT5-XT-1100 remote extender unit (REX) to the interactive

whiteboard, you must use a self-powered hub. CAT5-XT-1100 extenders don’t provide sufficient

power for a bus-powered USB extender.

N OT E

You can connect the USB cable from the hub to the SMARTBoard 800i series interactive

whiteboard system’s ECP module using the included USB A to mini-B cable or using a standard

USB cable with the mini USB to USB adapter included with your system.

Using the USB A to mini-B cable

Computer

CAT5-XT-1100

Cat 5 cable < 40' (12 m)

Self-powered

USB hub

Using a standard USB cable with the USB adaptor

Computer

CAT5-XT-1100

Cat 5 cable < 40' (12 m)

Self-powered

USB hub

USB A to

mini-B cable

Standard

USB cable

Interactive

whiteboard system

USB

adapter

Interactive

whiteboard

system

11

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

N OT E S

l Each USB hub or extender used with the CAT5-XT-1100 extender reduces the maximum

Cat 5 cable length by 40' (12 m). The Cat 5 cable in this configuration is limited to 52' (16 m)

(not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered

CAT5-XT-1100 extenders. A laptop might not provide sufficient power while running on

battery power.

l The length of the USB cable that connects the self-powered hub to the interactive whiteboard

must not exceed 16' (5 m). See Extending USB connections on page 21.

Using a USB-XT extension cable or a SMARTGoWire cable and a
CAT5-XT-1100 extender

You can extend the USB connection from the computer to a CAT5-XT-1100 extender local unit (LEX)

using a USB-XT extension cable. You can substitute the SMARTGoWire cable for the USB-XT

extension cable.

Computer USB-XT or

SMARTGoWire

CAT5-XT-1100

Cat 5 cable < 52' (16 m)

USB

adapter

cable

N OT E S

l Each USB hub or extender used with the CAT5-XT-1100 extender reduces the maximum

Cat 5 cable length by 40' (12 m). The Cat 5 cable in this configuration is limited to 52' (16 m)

(not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the bus-powered USB-XT

extension cable or SMARTGoWire cable and the bus-powered CAT5-XT-1100 extenders. A

laptop might not provide sufficient power while running on battery power.

12

Interactive

whiteboard

system

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

Extending the USB with an SBX800 CAT5-XT extender

You can use the SBX800CAT5-XT extender to extend the USB interface of your SMARTBoard 800i

series interactive whiteboard system.

Using an SBX800CAT5-XT extender

Computer SBX800

CAT5-XT

extender

N OT E S

l The maximum Cat 5 cable length in this configuration is 50' (15.25 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB interface must provide sufficient power for the USBconnection

adapter. A laptop might not provide sufficient power while running on battery power.

Cat 5 cable Pen tray

extender

module

Interactive

whiteboard

system

Using a SMARTGoWire cable with an SBX800 CAT5-XT extender

You can connect the computer to the SBX800 CAT5-XT remote extender unit (REX) using the

SMART GoWire cable.

Computer SMARTGoWire

cable

13

SBX800

CAT5-XT

extender

Cat 5 cable Pen tray

extender

module

Interactive

whiteboard

system

C H A P T E R 2

Extending the USB of SMARTBoar d 800i series interactive whiteboard systems

N OT E S

l The maximum Cat 5 cable length in this configuration is 50' (15.25 m) (not included).

l You can use plenum-rated Cat 5 cable, if required.

l The computer’s USB port must provide sufficient power for the bus-powered

SMARTGoWire cable and the USBconnection adaptor. A laptop might not provide sufficient

power while running on battery power.

14

Appendix A

USB terminology 15
USB topology 17
Connecting USB devices 18
Powering USB devices 18
USB connectors and cables 19

USB connectors 19
USB cables 20
Prohibited cable assemblies 20
USB cable length 21

Extending USB connections 21

Basic USB connection 21
Compound device connection 22
Host with internal non-root hub and compound device connection 22

You can use this section as a reference to common Universal Serial Bus (USB) 2.0 terms, rules and

conventions.

USB terminology

These definitions are derived from the Universal Serial Bus Specification, revision 2.0, and are used

in this document.

Term Definition

Active (device) A device (hub or extension cable) with circuitry for regenerating the USB

signals. For more information, see Powering USB devices on page 18.

Device A logical or physical entity that performs a function. The actual entity

described depends on the context of the reference. At the lowest level,

device may refer to a single hardware component, as in a memory device.

At a higher level, it may refer to a collection of hardware components that

perform a particular function, such as a USB interface device. When used

in a non-specific reference, a USB device is either a hub or a function.

15

A P P E N D I X A

USB 2.0 specification primer

Term Definition

Downstream The direction of data flow from the host or away from the host. A

downstream port is the port on a hub electrically farthest from the host that

generates downstream data traffic from the hub. Downstream interfaces

receive upstream data traffic.

Full-speed USB operation at 12 Mbps

Function A USB device that provides a capability to the host, such as a keyboard,

interactive whiteboard or speakers.

High-speed USB operation at 480 Mbps

Host The host computer system where the USB host controller is installed. This

includes the host hardware platform (CPU, bus, etc.) and the operating

system in use.

Host controller The host’s USB interface hardware and software

Hub A USB device that provides additional connections to the bus

Low-speed USB operation at 1.5 Mbps

Passive

(extension cable)

An extension cable that has no active electronic components. For more

information, see Prohibited cable assemblies on page 20.

Physical device A device that has a physical implementation; for example, speakers,

microphones, and CD players.

Port A USB hub’s downstream connection point where a USB device is

attached

Root hub A USB hub directly attached to the host controller

Upstream The direction of data flow toward the host. An upstream connector on a

device is electrically closest to the host that generates upstream data traffic

from the hub. Upstream interfaces receive downstream data traffic.

16

Root

hub

Hub 1

Hub 2

Hub 3 Hub 4

Hub 5

Hub 7Hub 6

Function

Host (Tier 1)

Tier 2

Tier 3

Tier 4

Tier 5

Tier 6

Tier 7

Function

Function

Function

Function

Function

Function

A P P E N D I X A

USB 2.0 specification primer

USB topology

The USB physical network is a tiered star topology. A hub is at the center of each star. Each wire

segment is a point-to-point connection between the host and a hub or function, or a hub connected to

another hub or function. This figure illustrates the topology of a USB network.

Timing constraints for hub and cable propagation times allow a maximum of seven tiers, including the

root tier. In seven tiers, a maximum of five non-root hubs can be supported in a communication path

between the host and any device. Note that a compound device occupies two tiers; therefore, it

cannot be attached at tier seven where only functions can be used.

17

A P P E N D I X A

USB 2.0 specification primer

Connecting USB devices

USB attachment points are provided by a special class of USB device known as a hub. The

additional attachment points provided by a hub are called ports.

A host includes an embedded hub called the root hub that can provide one or more attachment

points. Hosts may also have other non-root internal hubs to provide further expansion capability.

These internal non-root hubs are tier 2 devices, and limit the number of external hubs that you can use

in a path.

Powering USB devices

A USB host can supply power for USB devices that are directly connected. USB devices that rely on

power from the cable are called bus-powered devices.

USB devices that have their own externally connected power supplies are called self-powered

devices.

When a bus-powered device connects to the host’s USB interface,the host allocates power in

increments called unit loads. A unit load is defined to be 100 mA. A device may be either a low-power

device using one unit load or a high power device, consuming up to five unit loads. When connecting,

all devices default to low-power. If required by the device, the host’s software controls the transition

to high-power by ensuring that adequate power is available. Hosts that are externally powered must

be able to supply up to five unit loads ( 500 mA) of power but may supply significantly more. Battery

powered hosts may supply from one to five unit loads but may limit the power to conserve battery

power.

18

A P P E N D I X A

USB 2.0 specification primer

USB connectors and cables

USB connectors

There are two types of full-size USB connectors: Series-A and Series-B, also known as Type-A and

Type-B, respectively. Either connector type can be a receptacle or a plug.

l Series-A receptacles are used as outputs from host systems and hubs.

l Series-B receptacles are used as inputs to hubs or devices.

l Series-A plugs are always oriented toward the host system and connect to Series-A

receptacles.

l Series-B plugs are always oriented toward a USB hub or device and connect to Series-B

receptacles.

N OT E

Smaller versions of the Series-A and Series-B connectors, called mini-A and mini-B, and micro-A

and micro-B, are available and conform to the same rules as full-size USB connectors.

T I P

Although USB 2.0 specifications require that USB connectors can be “hot plugged” (for example,

you can insert a USB connector with power on without damage to the circuitry), we recommend

that you connect all your devices and cables before you turn on the power. If you connect a device

when the power is already on, and the system doesn’t work correctly, disconnect the power from all

active devices in the USB circuit, and then connect the power again.

19

A P P E N D I X A

USB 2.0 specification primer

USB cables

For full-speed and high-speed connections, USB 2.0 specifications allow two types of cable

assemblies:

l a standard detachable cable that is terminated on one end with a Series-A plug, and terminated

on the opposite end with a Series-B plug

l a captive cable that is terminated on one end with a Series-A plug, and has a vendor-specific

connection on the opposite end for the peripheral

l a standard detachable cable that is terminated on one end with a Series-A plug, and terminated

on the opposite end with a Series-B plug

l a captive cable that is terminated on one end with a Series-A plug, and has a vendor-specific

connection on the opposite end for the peripheral

I M P O R T A N T

Any other cable assemblies are prohibited.

Prohibited cable assemblies

USB 2.0 specifications prohibit specific cable assemblies. Prohibited cable assemblies may work in

some situations, but they cannot be guaranteed to work in all instances.

An example of a prohibited cable is the “extension cable.” This type of cable assembly has a Series-A

plug and a Series-A receptacle or a Series-B plug and a Series-B receptacle. This “passive” extension

cable allows you to connect multiple cable segments, possibly exceeding the maximum permissible

cable length.

Another example of a prohibited cable is one with both ends terminated in either Series-A plugs or

Series-B receptacles, allowing two upstream ports or two downstream devices to be connected

together.

20

Root

Hub

Hub

1

Hub

2

Hub

3

Hub

4

Hub

5

Function

Host

Host ( Tier 1 ) Tier 2 Tier 3 Tier 4 Tier 5 Tier 6 Tier 7

16 ' (5 m) + 16 ' ( 5 m) + 16 ' ( 5 m ) + 16 ' ( 5 m) + 16 ' (5 m ) + 16 ' ( 5 m) = 96 ' ( 30 m )

A P P E N D I X A

USB 2.0 specification primer

USB cable length

The maximum allowable USB cable length is determined primarily by signal attenuation and

propagation delay. A USB cable also carries VBUS and GND wires on each segment to deliver power

to bus-powered devices. VBUS is nominally +5V at the source, and the GND lead provides a

common ground reference between the upstream and downstream devices. The voltage drop across

the VBUS and GND leads can also limit the maximum cable length.

You can purchase or manufacture cables using commonly available wire that conforms to USB 2.0

specifications to a maximum length of approximately 16' (5 m).

Extending USB connections

In USB topology, the hub is the only device that you can use to link USB devices. The distance

between hosts and devices, therefore, is limited by the maximum USB cable length allowed between

devices and the maximum number of hubs allowed in a path.

Basic USB connection

In the following diagram, you can see that if all USB hub connections use 16' (5 m) cables, the

maximum distance between a host’s root hub and a function is 6 × 16' (5 m) = 96' (30 m).

21

Compound device

Root

Hub

Hub

1

Hub

2

Hub

3

Hub

4

Hub

5

Function

Host

Host ( Tier 1 ) Tier 2 Tier 3 Tier 4 Tier 5 Tier 6 Tier 7

16 ' (5 m) + 16 ' (5 m ) + 16 ' (5 m ) + 16 ' (5 m ) + 16 ' (5 m) = 80 ' (25 m )

Host with non - root hub

Compound device

Root

Hub

Hub

1

Hub

2

Hub

3

Hub

4

Hub

5

Function

Host

Host ( Tier 1) Tier 2 Tier 3 Tier 4 Tier 5 Tier 6 Tier 7

16 ' (5 m) + 16 ' (5 m) + 16 ' (5 m ) + 16 ' (5 m ) = 64 ' ( 20 m )

A P P E N D I X A

USB 2.0 specification primer

Compound device connection

In this diagram, you can see that connecting a compound device limits the maximum distance to

5 × 16' (5 m) = 80' (25 m).

N OT E

SMART Board 800 series interactive whiteboard systems are compound devices.

Host with internal non-root hub and compound device connection

In this diagram, you can see that connecting a compound device and a host with an internal non-root

hub further limits the maximum distance to 4 × 16' (5 m) = 64' (20 m).

22

Index

A

active device 15

C

CAT5-XT-1100 and self-powered USB

hub

connecting USB devices 18

3, 11

D

device 15

E

extending 800 series USB

bus-powered extension cable 2
CAT5-XT-1100 active extender 3
SBX800 CAT5-XT extender 5

extending 800i series USB

bus-powered extension cable 7
CAT5-XT-1100 active extender 10
SBX800 CAT5-XT extender 13

extending the USB of 800 series

interactive whiteboards

extending the USB of 800i series

interactive whiteboard systems

extending USB connections 21

S

SMART GoWire with SBX800 CAT5-XT5, 13

U

USB

cable length 21
cables 20
connectors 19
terminology 15
topology 17

USB-XT or SMART GoWire, CAT5-XT-

1100 and self-powered USB hub
USB 2.0 specification primer 15
using multiple USB-XT extenders 2, 9

1

7

4, 12

P

passive device 16
powering USB devices 18
prohibited cable assemblies 20

23

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