INOGENI INOTOGGLE Toggle USB 3.0 Switcher User Guide

Toggle USB 3.0 Switcher
Version 1.7
User Guide

TYPICAL APPLICATION

Here is a typical connection diagram used for the TOGGLE device in a videoconferencing setup.

BLOCK DIAGRAM

Here is a simple block diagram of the TOGGLE unit.

DEVICE INTERFACES

Here are the device’s interfaces.

1. RS232 and GPIN interfaces
2. 3 x USB-A ports for devices
3. PC #1 USB-B port
4. PC #2 USB-B port
5. Push-button
6. +12V power input
7. PC #1 led indicator
8. PC #2 led indicator
9. Power indicator

LEDS BEHAVIOR

Here is the leds behavior:

PCx LEDs

OFF| No PC connected.
SOLID| PC is currently selected.
ONE HOST BLINK| PC detected but not currently selected.
BOTH HOST BLINK| The user pushed the button, but the button is locked. Please see the SCLK command.
Power LED
OFF| No power is present on board.
SOLID| Power detected.
BLINK| Over-current detected on USB devices.
LED Intensity| FULL intensity if power is provided through an external power supply.MEDIUM intensity if power is provided through USB connections (PC1 or PC2).

IMPORTANT: If all leds are blinking in sync, this means the unit is in the upgrade process. This happens only while you upgrade the unit.

OPERATING MODES

There are two modes supported by the device. They will be explained here.
Automatic
This is the default mode. This mode will switch automatically to the last PC¹ connected. If the current PC is disconnected, the device will switch back to the other PC if it is detected. Push-button action and remote control are also supported.
Manual
The manual mode will enable you to force a specific PC selection. Push-button action and remote control are also supported. It is possible to turn OFF both PCs in manual mode.
These modes can be set through our INOGENI Control App or through the RS232 interface. The mode will be saved onboard the device.
¹PC: any host computer or laptop.

SPECIFICATIONS

Here is the complete specification.

Physical details

Dimensions (W x L x H)| 70 x 83 x 23 mm
Power supply| 12V
Power consumption| Up to 1.2A
Weight| 113 g
Package content| 2 x USB 3.0 Type-B to Type-A cables.
1 x terminal block connection.
1 x 12V power supply.
Operating temperature| 0° to 45° C (32° to 113° F)
Storage temperature| -40° to 105° C (-40° to 221° F)
Origin| Canada
Warranty| 2 years
General specifications
USB host ports| 2 x Type-B USB 3.0/2.0 compatible.
USB device ports| 3 x Type-A USB 3.0/2.0 compatible.
Serial interface| Baud rate: 9600
For control purposes. See the Serial communication protocol section for more details.
Push-button| Physical switch to select the host.
GPIN| Contact-closure control.
Controlled by open-drain IO (short to ground) or driven IO.
Supported voltage range: 0V to +12V max.
The voltage threshold is 0.7V for HW revision 2.0.
The voltage threshold is 2.3V for HW revision 3.0+²
Device current limit| 1.8A shared current limit for all 3 x USB device ports.
You can monitor current consumption through RS232 and our Control App.
Software
Upgrade| Field upgradable through our INOGENI Control App.
Control| Automatic, manual, or remote control.
The current configuration is saved onboard.

²Please use the Control App from INOGENI to identify the hardware revision of your product.

SERIAL COMMUNICATION PROTOCOL

Here is the complete list of commands provided through the serial connection. The pinout is indicated on the enclosure.
Baud rate: 9600 // Data bits: 8 // Stop bits: 1 // Parity: None // Flow control: None

where X = MAJOR and
Y = MINOR version.| Get a firmware version.
SLCK| 0,1| NA| Set/unset button LOCK
GLCK| NA| 0,1| Get button LOCK status.
SH| 0,1,2| NA| Select PC.
0=OFF
1=PC1
2=PC2
GH| NA| 0,1,2| Get PC selected.
0=OFF
1=PC1
2=PC2
GCAUSE| NA| “HOST_OFF“
“HOST_CHG“
“BTN“
“CMD“| Get last PC switching cause:
– HOST_OFF: No inputs selected. The PC selection process is changing between PC1 and PC2 or both hosts are OFF.
HOST_CHG: PC1 or PC2 appeared/disappeared in mode AUTO;
– BTN: Button has been used to change PC selection.
– CMD: RS232 command has been used to change PC
selection.
GHV| 1,2| “X.YZV“
Where X = units value
YZ = decimal value| Get PCx voltage.
GDI| 1,2,3| “X.YZA“
Where X = units value
YZ = decimal value| Get device X current.
SGMOD| 0,1| NA| Set GPIN mode: (pulse =’0’, level = ‘1’)
GGMOD| NA| 0,1| Get GPIN mode (pulse =’0’, level = ‘1’)
GHPW| 1,2,3| 0,1| Get HUB power status. If report ‘0’, then the HUB had turned OFF the specified USB port (overcurrent).
SAVE| NA| NA| Save settings.
SEV| 0,1| NA| Set/clear events (prints).
SM| 0,1| NA| Set/clear manual mode. (auto=’0’, manual=’1’)
GM| NA| 0,1| Get manual mode status.
DEF| NA| NA| Force factory default settings
RST| NA| NA| Reset MCU.
H| NA| List of all commands| Get user help.

You need to add a carriage return character “\r” at the end of the command string.
All commands without return values will append 2 possible answers: “ACK\n\r” or “NACK\n\r”.
All commands with return values will return the following pattern:

• If command is recognized: “[value]\n\rACK\n\r”
• If a command is not recognized: “NACK\n\r”

NOTE: The user needs to put a space character between the command name and argument. For example, when the user wants to choose HOST#2, you need to send “SH 2\r” to the device. Please note the space character.
GPIN MODE
With the introduction of firmware 1.1+, there are two (2x) GPIN modes: pulse mode and level mode.

• The GPIN pulse mode is the factory default. Each transition from HIGH to LOW on the GPIN pin will force a PC change. See the following picture for the explanation of the mode.
  

• The GPIN level mode uses a level “0” (short to ground) and “1” (open or voltage higher than a threshold) to select a specific PC.
  o A level “0” or short to ground: PC2 is selected.
  o A level “1” or open: PC1 is selected.
  IMPORTANT NOTES ABOUT GPIN
  

• It is recommended to set the Toggle in manual mode with the UART command “sm” when using the GPIN (especially with level mode). If the Toggle is used in auto mode, any changes on the PCx side will affect the PC selected even if the GPIN level mode is used.

• It is also recommended to lock the button with the UART command “slck” when the GPIN is used in level mode.

• For Toggle with a hardware revision of 2.0, you need to connect the external power supply to use the GPIN. The Control App software from INOGENI will report the exact hardware revision.

SETTINGS

Some settings can be saved with the “SAVE” command. These settings are:

• Presence or absence of events on serial ports. Events are used for diagnostics. An event returned by the unit always starts with the string “EVT:” The “SEV” serial command is used to enable/disable the events. This command also automatically saves this setting inside the device.
• Manual or automatic mode for PC selection. The “SM” command is used to switch between manual and automatic modes. This command also automatically saves this setting inside the device.
• If manual mode is selected and the GPIN level mode is disabled: the specific PC selected is also saved. The “SH” command is used to select between PC1, PC2, or OFF. This command also automatically saves this setting inside the device.
• If the button is locked or not. The “SLCK” command is used to select between these modes. *This command also automatically saves this setting inside the device with firmware 1.3+.
• If the GPIN level mode is selected or not. The command “SGMOD” is used to select between these modes. *This command also automatically saves this setting inside the device with firmware 1.3+.
• The “DEF” command restores the default settings of the device. It will take effect immediately. The factory default settings are:

1. No events.
2. Automatic mode for PCx selection.
3. GPIN_LEVEL disabled.
4. Button is unlocked.

• The user can change settings with both the serial port commands and with the ControlApp (see next section).

INOGENI CONTROL APP

You can use our Control App to monitor firmware information, and upgrade and configure your unit.
NOTE: You need to use the USB-B to USB-A cable provided with the box for the Control App to detect the unit.

SUPPORT

Engineered by video professionals, for video professionals, it is your most compatible USB 3.0 device. INOGENI expertise at your fingertips:

• Expert Technical Support team at support@inogeni.com for immediate help or if you have any technical questions about our products.
• Extensive Knowledge Base to learn from other customers’ experiences.

© Copyright 2022 by INOGENI INC. All Rights Reserved.
INOGENI name and logo are trademarks or registered trademarks of INOGENI. Use of this product is subject to the terms and conditions of the license and limited warranty in effect at the time of purchase. Product specifications can change without notice.
INOGENI, Inc.
979 de Bourgogne avenue, suite 530
Québec
G1W 2L4 (QC) Canada

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