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Advanced USB Features

This document describes the advanced USB features

supported by Agility iPATH Version 3.3 and 4.0.

Agility™ iPATH™

ACR1000A-T-R2 ACR1002A-R ACR1000A-CTL-24 ACR1000A-CTL-192

ACR1002A-T ACR1000A-CTL ACR1000A-CTL-48 ACR1000A-CTL-288

ACR1012A-T ACR1000A-CTL-8 ACR1000A-CTL-96 ACR1000A-CTL-ULC

ACR1000A-R-R2

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

www.blackbox.com • info@blackbox.com

Customer

Support

Information

724-746-5500 | blackbox.com Page 2

Agility iPATH Advanced USB Features Update

We‘re here to help! If you have any questions about your application

or our products, contact Black Box Tech Support at 724-746-5500

or go to blackbox.com and click on “Talk to Black Box.”

You’ll be live with one of our technical experts in less than 60 seconds.

Disclaimer:

Black Box Network Services shall not be liable for damages of any kind, including, but not limited to, punitive, consequential or cost of cover damages, resulting

from any errors in the product information or specifications set forth in this document and Black Box Network Services may revise this document at any time

without notice.

Table of Contents

1. Introduction ...........................................................................................................................................................................3

1.1 Device Merging ................................................................................................................................................................3

1.2 Port Control .....................................................................................................................................................................3

1.3 USB Quirks ......................................................................................................................................................................3

1.4 Flow Control ...................................................................................................................................................................3

1.5 Known Device Codes ......................................................................................................................................................4

2. Setup Guide ..........................................................................................................................................................................5

2.1 Point-to-Point ................................................................................................................................................................5

2.2 iPATH Control ................................................................................................................................................................ 6

724-746-5500 | blackbox.com Page 3

Agility iPATH Advanced USB Features Update

1. Introduction

This document explains the operation of the advanced USB features that have been included in the Agility KVM Switch and the

iPATH unit from firmware version 3.0 and above.

For the advanced USB features to work, both endpoints must be on the same firmware version above 3.0.

For USB Flow control to be enabled, all endpoints need to be at version 3.5 or above.

There are four parts to the advanced USB features:

• Device merging

• Port reservation

• Flow control

• USB quirks or advanced features.

1.1 Device Merging

Merging is the process of combining multiple equivalent USB human interface devices to appear to the host computer as a single

device. You can merge HIDs to increase efficiency.

As long as the HID devices have the same Vendor ID (Vid) and Product ID (Pid), then the 13-device limit on devices connecting to

a single USB hub can be overcome. (This is the USB specification.)

The TX unit can enumerate 13 different devices, but you can have many more devices connected to it. Merging is the default set-

ting on the Agility receiver. There are USB devices and drivers that do not behave correctly if merging is applied. Some drivers are

looking for individual serial numbers of the device. To support these devices or functionality based on the individual serial number,

disable merging for devices attached to identified Rx Unit ports. All devices attached to a port that has the merge capability dis-

abled will be treated as individual devices.

1.2 Port Control

The Agility Transmitter reports itself as a 13-port USB hub. The 13 devices are allocated ports on this hub by the lowest available

port basis. Though this is sequential, it is random in nature in that the next device to connect gets the next available port. This

can cause issues where by a driver is looking for a device on a set USB port. This port can be changed, when receivers are

switched away and reconnected to the transmitter, and the device driver will no longer able to find the device. To overcome this

issue, you can reserve a number of USB ports on the Transmitter and then assign the reserved ports to a particular device on the

receiver. This feature is often necessary when using dual touch screens on an Agility receiver. If the touch screens’ port numbers

changed (because the port numbers are used to assign a screen to a particular head) the control of the screens might swap over.

When you reserve a port for a particular screen, this no longer happens.

1.3 USB Quirks

When you use Agility, a number of USB devices have been found to function incorrectly. The reasons for these problems have

many root causes, from issues with delays, specific configuration settings, and many more. As part of the on-going support for

Agility products we are actively looking for solutions. Many of these solutions are only applicable to specific devices. Rather than

require the Agility system to be constantly updated with new device drivers, the advanced USB settings allow a number of

patches to be applied depending on the issue identified.

The patches are controlled in the USB Advanced Settings by adding a kernel or user code in the appropriate field. There are two

different input methods depending upon whether you are using the Agility in a point-to-point configuration along with the

receivers’ web interface, or whether the Agility Receivers and Agility Transmitters are under iPATH control. iPATH requires the

codes to be entered as a decimal value and the Agility units require them to be entered as a Hex value.

1.4 Flow Control

USB flow control is included in Version V3.5 of the Agility firmware. Flow control is required for a number of more complex USB

peripherals, including some touch screens and mutli-function/combined devices.

Produktspecifikationer

Varumärke:	Black Box
Kategori:	Växla
Modell:	ACR1000A-R-R2
Färg på produkten:	Grijs
Snäll:	Geventileerd blind paneel
Husmaterial:	Staal
Antal per paket:	1 stuk(s)
Rackkapacitet:	21U
Harmoniserad systemkod (HS):	85389099