Infobit iTrans WP70HBC User Manual

Model: iTrans WP70HBC

Version: User Manual V1.2

1.0 Overview

1.1 iTrans WP70HBC (Tx)

The iTrans WP70HBC (Tx) is a 2x1 wall plate transmitter featuring USB-C and HDMI inputs. It utilizes HDBT 3.0 technology for uncompressed 4K@60Hz 4:4:4 8-bit SDR and 4K@60Hz 4:2:2 12-bit HDR video transmission. It supports simultaneous transmission of video, audio, USB 2.0, control signals, and power up to 40m/131ft over a single Cat 6A or higher cable. The unit complies with the 2-gang US standard for easy installation. The USB-C port is a full-featured port supporting video, data, and 60W charging when connected to a local power adapter. This transmitter is PoH+ (Power over HDBaseT) capable, receiving power from the remote receiver (iTrans WP70HBC (Rx)) via the category cable, eliminating the need for an additional power adapter. It also provides 60W charging for the connected USB-C computer when an external power adapter is used.

1.2 iTrans WP70HBC (Rx)

The iTrans WP70HBC (Rx) is an HDBT 3.0 receiver designed to work with the iTrans WP70HBC (Tx) transmitter. It transmits uncompressed 4K UHD video and high-speed USB 2.0 signals up to 40m/131ft over a Cat 6A or above cable, supporting up to 4K@60Hz 4:4:4 8-bit resolution. It features one-way PoH+ support, powering the remote transmitter. It also includes an independent audio pass-through and an audio de-embedded output. The RS232 port enables device control and firmware updates. This receiver is ideal for extending USB signals along with HDMI for interactive displays like whiteboards or projectors.

2.0 Features

2.1 iTrans WP70HBC (Tx)

2x1 wall plate switch transmitter over HDBT 3.0 platform.
Supports automatic and manual switching (button & API commands) between USB-C and HDMI + USB-B inputs.
Full-featured USB-C input supports 4K video, USB data delivery, and 60W charging*.
HDMI 2.0 input supports resolutions up to 4K@60Hz 4:4:4 8bit and HDCP 2.2.
Supports transmission of 4K@60Hz 4:4:4 8bit signal up to 40m/131ft and 4K@30Hz 4:4:4 8bit signal up to 70m/230ft via Cat 6A or above cable.
Additional analog pass-through channel for independent audio distribution.
High-speed USB 2.0 pass-through with data rate up to 300Mbps.
RS232 port supports command pass-through, API control, and firmware update.
PoH+ PD function enables transmitter power from an HDBT receiver.
Supports CEC commands for display on/off control.

*Note: USB-C 60W charging requires an additional power adapter connected to the wall plate transmitter.

2.2 iTrans WP70HBC (Rx)

Supports video resolutions up to 4K@60Hz 4:4:4 8bit.
HDCP 2.3 and backwards compatible.
Supports transmission of 4K@60Hz 4:4:4 8bit signal up to 40m/131ft and 4K@30Hz 4:4:4 8bit signal up to 70m/230ft via Cat 6A or above cable.
Additional analog pass-through channel for independent audio transmission.
High-speed USB 2.0 pass-through with data rate up to 300Mbps.
DIP switch for RS232 function configuration.
Supports PoH+ to power the remote transmitter with a PD module.
Supports device control and firmware update through RS-232 port.
Supports CEC commands pass-through.

3.0 Package Contents

1 x iTrans WP70HBC (Tx)
1 x iTrans WP70HBC (Rx)
1 x 2-Gang US Faceplate Cover (with 4 x Screws)
1 x USB 2.0 Type-A to USB Type-B Cable (1.8m)
2 x 3.5mm 3-Pin Phoenix Male Connector
1 x 3.5mm 2-Pin Phoenix Male Connector
1 x Power Adapter for Rx (DC 20V 3A)
1 x Power Adapter for Tx PD (DC 20V 6A)
2 x AC Power Cord with US version (With PSE)
2 x 3-Pin RS-232 Phoenix Male Connector
1 x 2-Pin RS-232 Phoenix Male Connector
4 x Mounting Screws
4 x Mounting Brackets
4 x Rubber Feet

4.0 Specifications

4.1 iTrans WP70HBC (Tx)

Technical	Value
Input	1 x HDMI IN, 1 x USB-C IN
Output	1 x HDBT OUT
Input/Output Video Singal	Input: HDMI up to 4K@60Hz (4:4:4 8-bit), HDCP 2.2; USB-C Up to 4K@60Hz (4:4:4 8-bit), HDCP 2.2 Output: HDBT
Input/Output Resolutions Supported	HDMI/USB-C/HDBT: 4096 x 2160^{2,5,6,7,8(YUV 4:4:4)}, 3840 x 2160^{2,5,8(YUV 4:4:4)}, 2560x1600⁸, 2560x1440⁸, 1920x1200⁸, 1920x1080P⁸, 1680x1050⁸, 1600x1200⁸, 1600x900⁸, 1440x900⁸, 1366x768⁸, 1360x768⁸, 1280x1024⁸, 1280x960⁸, 1280x800⁸, 1280x768⁸, 1280x720⁸, 1024x768⁸, 800x600⁸ 1 = at 23.98 Hz, 2 = at 24 Hz, 3 = at 25 Hz, 4 = at 29.97 Hz, 5 = at 30 Hz, 6 = at 50 Hz, 7 = at 59.94 Hz, 8 = at 60 Hz
Maximum Data Rate	18Gbps
Audio Format	HDMI IN / USB-C IN: Supports multi-channel audio formats, including PCM 2.0/5.1/7.1, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio and DTS:X LINE IN-P: Stereo
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-20°C to 70°C (-4°F to 158°F)
Humidity	10% to 90%, non-condensing
ESD Protection	Human-body Model: ±8kV (Air-gap discharge) / ±4kV (Contact discharge)
Power Supply	PoH+ DC 20V 6A (optional, for USB-C charging)
Power Consumption (Max)	6.6W (USB-C charging not included) 71.6W (USB-C charging included)
Device Dimension	89mm x 105.6mm x 36.25mm / 3.5" x 4.16" x 1.43" (W x H x D)
Product Weight	0.36kg/0.79lb

4.2 iTrans WP70HBC (Rx)

Technical	Value
Input	1 x HDBT IN
Output	1 x HDMI OUT
Input/Output Video Singal Type	Input: HDBT Output: HDMI up to 4K@60Hz (4:4:4 8-bit), HDCP 2.3
Input/Output Resolutions Supported	HDMI/HDBT: 4096 x 2160^{2,5,6,7,8(YUV 4:4:4)}, 3840 x 2160^{2,5,8(YUV 4:4:4)}, 2560x1600⁸, 2560x1440⁸, 1920x1200⁸, 1920x1080P⁸, 1680x1050⁸, 1600x1200⁸, 1600x900⁸, 1440x900⁸, 1366x768⁸, 1360x768⁸, 1280x1024⁸, 1280x960⁸, 1280x800⁸, 1280x768⁸, 1280x720⁸, 1024x768⁸, 800x600⁸ 1 = at 23.98 Hz, 2 = at 24 Hz, 3 = at 25 Hz, 4 = at 29.97 Hz, 5 = at 30 Hz, 6 = at 50 Hz, 7 = at 59.94 Hz, 8 = at 60 Hz
Maximum Data Rate	18Gbps
Audio Format	HDMI OUT: Supports multi-channel audio formats, including PCM 2.0/5.1/7.1, Dolby TrueHD, Dolby Atmos, DTS-HD Master Audio and DTS:X LINE OUT-P/AUDIO OUT: Stereo
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-20°C to 70°C (-4°F to 158°F)
Humidity	10% to 90%, non-condensing
ESD Protection	Human-body Model: ±8kV (Air-gap discharge) / ±4kV (Contact discharge)
Power Supply	DC 20V 3A
Power Consumption (Max)	10.92W
Device Dimension (W x H x D)	212.5mm x 25mm x 110mm / 8.37" x 0.98" x 4.33"
Product Weight	0.46kg/1.01lbs

5.0 Transmission Distance

Straight-through category cable wired to T568B standard is recommended. For a maximum of HDMI 2.0 resolution, Cat 6A U/FTP, F/FTP or S/FTP cable is recommended.

Cable Type	Transmission Distance (Max)	Supported Video
Cat 5e/6	60m/197ft	4K@60Hz 4:2:0 24bpp 4K@30Hz 1080P@60Hz
Cat 5e/6	40m/131ft	4K@60Hz 4:4:4 24bpp 4K@60Hz 4:2:2 36bpp 4K@60Hz 4:2:0 36bbp
Cat 6A or 7 (U/FTP, F/FTP or S/FTP)	70m/230ft	4K@60Hz 4:2:0 24bpp 4K@30Hz 1080P@60Hz
Cat 6A or 7 (U/FTP, F/FTP or S/FTP)	40m/131ft	4K@60Hz 4:4:4 24bpp 4K@60Hz 4:2:2 36bpp 4K@60Hz 4:2:0 36bbp

6.0 Using Patches

Network patches may be applied in the installation, which may affect the transmission distance. The requirements for the patches are as follows:

A maximum of 2 cables can be used during deployment, each not exceeding 5m in length.
Install patches on both ends of the devices.

Diagram Description: A diagram shows a video source connected via HDMI cable to a transmitter. The transmitter is connected to a wall-mounted link segment via a patch cable. The link segment is connected to a receiver via another patch cable. The receiver is connected to a display via an HDMI cable. The diagram also indicates USB-C, USB-A to USB-B, and audio connections.

The lengths of the cables used in three segments shall follow the specification below:

X = Length of the patch cable at TX end ≤ 5 (meter)
Y = Length of the patch cable at RX end ≤ 5 (meter)
Z = Wall segment ≤ Maximum Distance – X – Y (meter)

7.0 Panel Description

7.1 iTrans WP70HBC (Tx)

Front Panel:

Diagram Description: The front panel of the transmitter shows the following numbered ports and indicators:

1: USB-C IN port with a lightning bolt icon (PD - Power Delivery)
2: USB-C IN port with a play button icon (AV - Audio Video)
3: USB-C IN port with a document icon (Data - USB data)
4: HDMI IN port
5: USB-C LINK LED
6: INPUT button
7: DISPLAY button
8: LINE IN-P port
9: USB HOST port
10: HDBT OUT port
11: Power LED
12: 20V DC input
13: RS232 port

#	Name	Description
1	HDMI IN	Connect to an HDMI source.
2	USB-C IN	Connect to a USB-C source (e.g. laptop). This port is a full-featured USB-C port supporting USB 2.0, 4K@60Hz video, and charging up to 60W. For charging, connect a power adapter to the transmitter. Recommended cable: USB-C to USB-C cable supporting USB 3.2 Gen 1 or above.
3	HDMI LED	On: HDMI source is selected. Off: HDMI source is not selected.
4	USB-C LED	On: USB-C source is selected. Off: USB-C source is not selected.
5	LINK LED	On: HDBT link is normal. Off: No HDBT link or link error.
6	Power LED	On: The device is powered on. Off: The device is powered off.
7	INPUT	Input selection button. Press to select an input source between HDMI and USB-C channels.
8	DISPLAY	Button for controlling display on/off. Short press: Turn on the display device. Press and hold for at least 3 seconds: Turn off the display device.
9	LINE IN-P	Connect to an audio source for analog audio pass-through to the receiver.
10	USB HOST	Connect to a USB host (e.g. PC) using the USB-A to USB-B cable provided. Note: This port is bound to the HDMI IN port; when HDMI IN is selected, USB peripheral devices are linked to the USB host device.
11	HDBT OUT	Connect to the HDBT IN port of a receiver.
12	20V	Connect to a DC 20V 6A power adapter (sold separately). Note: For charging a device through the USB-C port, a 20V/6A power adapter must be connected to this port.
13	RS232	Connect to an RS232 device for device control or firmware update. Note: Only the MCU firmware of the transmitter can be updated through this port; Valens firmware needs to be updated through the connected receiver.

Dimensions (Tx): 89mm x 105.6mm x 36.25mm / 3.5" x 4.16" x 1.43" (W x H x D)

7.2 iTrans WP70HBC (Rx)

Front Panel:

Diagram Description: The front panel of the receiver shows the following numbered ports and indicators:

1: Power LED
2: LINK LED
3: VIDEO LED
4: SET button (DIP Switch Configuration)
5: LINE OUT-P port
6: USB DEVICE (2.5A) ports

#	Name	Description
1	Power LED	On/Off: The device is powered on/off.
2	LINK LED	On: HDBT link is normal. Off: No HDBT link or link error.
3	VIDEO	On: Valid video signal is being output. Off: No video signal output.
4	SET	DIP Switch for configuration of RS232 function. Refer to DIP Switch Configuration section for details.
5	LINE OUT-P	Connect to an audio receiver for passing through the analog audio from the transmitter.
6	USB DEVICE (2.5A)	USB 2.0 Type-A ports. Connect to USB devices such as USB camera, mouse, and keypad.

Rear Panel:

Diagram Description: The rear panel of the receiver shows the following numbered ports:

1: 20V DC input
2: RS232 port
3: HDBT IN port
4: HDMI OUT port
5: AUDIO OUT port

#	Name	Description
1	20V	Connect to the power adapter provided. With one-way PoH+ function support, the receiver can recharge the connected transmitter.
2	RS232	Connect to an RS232 device for controlling the receiver, passing through RS232 commands or for firmware upgrade. Note: RS232 function can be configured through the DIP switch; refer to DIP Switch Configuration section for details.
3	HDBT IN	Connect to the HDBT OUT port of a transmitter.
4	HDMI OUT	Connect to an HDMI display.
5	AUDIO OUT	Connect to an audio receiver for audio de-embedding from HDMI OUT.

8.0 Wiring

Warnings:

Before wiring, disconnect the power from all devices.
During wiring, connect and disconnect the cables gently.

Diagram Description: A wiring diagram illustrates the connection between the transmitter and receiver. The transmitter is connected to a laptop via USB-C and to a PC via HDMI. The transmitter also has connections for LINE IN-P, USB HOST, and RS232. The receiver is connected to the transmitter via HDBT IN. The receiver has connections for HDMI OUT, AUDIO OUT, LINE OUT-P, USB DEVICE ports, and RS232. The receiver is connected to a TV via HDMI, an amplifier via audio cables, and a keyboard, mouse, and USB camera/speakerphone via USB. Power is supplied to both units.

To connect for RS232 control or firmware update:

Connect a PC to the RS232 port of the receiver and toggle the DIP switch between up and down positions. You can then send commands to the receiver to control the receiver and the remote transmitter, or perform firmware upgrade.

9.0 Power Supply

Always Connect RX Power: The RX must connect to the 20V 3A power supply at all times, as it only supports power from Rx to Tx.

PD Power is Only from TX: If using USB-C to power the connected PC, connect the 20V 6A power supply at the back of the Tx panel. Note: Cannot power from Tx to Rx.

10.0 RX DIP Switch

The 4-pin DIP switch is designed for configuring the RS232 working mode. Toggle the DIP switch between up and down positions as required according to the table below.

Diagram Description: A rear view of the Infobit HDBaseT 3.0 Receiver shows a 4-pin DIP switch labeled 'SET' with positions for 'RS-232 Control' and 'RS232 HDBaseT FW Update'.

DIP Positions	SET Functions
1 (Up/Down)	Reserved
2 (Up)	RS-232 Control
2 (Down)	RS232 HDBaseT FW Update
3 (Up/Down)	Reserved
4 (Up/Down)	Reserved

By default, pin 2 is set to the up position, enabling RS232 Control mode for controlling the receiver and transmitter, passing RS232 commands, and updating the receiver's MCU firmware. When pin 2 is set to the down position, the receiver is available for Valens firmware update.

Pins 1, 3, and 4 are reserved switches and do not affect the proper working of the RS232 function.

11.0 Automatic Switching

The transmitter provides automatic switching between the two inputs, allowing selection of the desired source with ease. This function follows the LIFO (Last in, first out) rule:

When a video source is connected to the transmitter, this input source becomes the selected video source.
When the currently selected video source is disconnected, the transmitter detects if another input channel is connected. If yes, it switches to that channel and outputs the signal. If not, it maintains the current selection and outputs no signal.

To select a specific input video source:

Disconnect the desired video source from the transmitter and reconnect it.
Use the Input Selection button on the front panel or API commands to select the desired video source.

Note: The automatic signal switching function detects 5V signal input, not valid A/V signal. If a source in standby mode constantly outputs a 5V signal, this function may not work, and the transmitter might not switch to another video source if the currently selected source is in standby. In such cases, turn off the standby source or disconnect it from the transmitter.

12.0 RS232 Control

Users may need to control the transmitter using API commands. Connect a PC or a control system to the RS232 port of the transmitter. The API commands for RS232 control are available in the separate document "API Command Set_iTrans WP70HBC". A professional RS232 serial interface software (e.g., Serial Assist) may be needed.

Before executing API commands via RS232 serial connection, ensure the RS232 interfaces of the device and the control PC are configured correctly.

RS232 Parameters:

Parameters	Value
Baud Rate	115200 bps
Data bits	8 bits
Parity	None
Stop bits	1 bit
Flow control	None

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