kramer EXT3-21-XR-TR 4K60 USB/HDMI Switcher Extender Owner’s Manual

: August 15, 2024
: Kramer

Table of Contents

Step 1: Check what’s in the box
Step 2: Get to know your EXT3-21-XR-TR
Step 3: Mount EXT3-21-XR-TR
Step 4: Connect inputs and outputs
Step 5: Connect power
Step 6: Operate EXT3-21-XR-TR
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

EXT3-21-XR-TR Quick Start Guide
This guide helps you install and use your EXT3-21-XR-TR for the first time.
Go to www.kramerav.com/downloads/EXT3-21-XR- TR to download the latest user manual and check if
firmware upgrades are available.

https://de2gu.app.goo.gl/pnuWBxogBxC2htZe9

Step 1: Check what’s in the box

EXT3-21-XR-TR 4K60 USB/HDMI Switcher Extender
1 Power adapter and cord
1 Bracket set
4 Rubber feet
1 Quick start guide

Step 2: Get to know your EXT3-21-XR-TR

Configuring the device as transmitter (Tx) or receiver (Rx, default) is done via the front panel button (or the embedded webpages settings).

#	Feature	Function
1	IR 3.5mm Mini Jack Connector	Connect to an external IR emitter to control

a local IR-controlled device from the remote extender (for example, EXT3-21 -XR-TR ).
Connect to an IR sensor to control a remote IR-controlled device connected to the remote extender side (for example, EXT3-21-XR-TR ).
2| USB-A 3.2| Connect to a USB local peripheral device (for example, a USB camera, a soundbar, microphone and so on).
3| HDMI IN Connector| Connect to an HDMI source.
4| USB-B 3.2 HOST Connector| Connect to a USB host (for example, a laptop) to communicate with the USB peripheral devices (for example, a smart board) connected to USB device ports on either the transmitter or the receiver sides of the extender.
5| HDMI and HDBT LEDs| Each input LED, lights green when a source is selected and active, blue when a source is selected but not active, and Off when a source is not selected.
Note: On transmitter mode, HDBT LED is always Off.
6| Rx INPUT SELECT Button| Press to select an input.
Press and hold for a minimum of 10 seconds to switch between Rx↔Tx mode.
Switching between modes initiates Factory Reset.
7| DISPLAY ON Button| Press to toggle turning the display on and off.
Button LED lights ON after sending a DISPLAY ON message. Button LED lights OFF after sending a DISPLAY OFF message.
8| ACTIVE HOST LED| Lights orange when local USB host is active.
9| ACTIVE Rx LED| Lights blue on active receiver mode.
10| PoE ► LED| Lights green when the device provides PoE to a connected device.
11| NET LED| Indicates networking status:
LED Color| Indicates
Dark| No IP address acquired.
Lights green| A valid IP address has been acquired.
Flashes green for 60s| A means to identify the device in a system, using command #IDV.
Flashes red/green| IP fallback address has been acquired.
#| Feature| Function|
---|---|---|---
12| STATUS| Indicates device status:
LED Color| Indicates
Off (Dark)| Device is powered and no active source connected.
Blue| Device is powered, and an active source is connected.
Green| Device is powered, an active source and acceptor are connected.
13| HDBT PoE RJ-45 Connector| Connect to the HDBT RJ-45 connector on a paired receiver/transmitter device (for example, a second EXT3-21-XR-TR device) that receives or provides PoE.
HDBT provides PoE only when the device is PSU-powered.
14| HDMI OUT Connector| Transmitter Mode: Connect to a local HDMI acceptor (for example, a preview monitor).
Receiver Mode: Connect to an HDMI acceptor.
15| USB-A 3.2 (2 & 3) Connectors| Connect to the USB local peripheral devices (for example, a USB camera, a soundbar, microphone and so on).
16| AUDIO OUT 5-pin Terminal Block Connector| Connect to a balanced stereo analog audio acceptor.
17| RELAY (1& 2) on a 4-pin Terminal Block Connector| Connect to relay- controlled devices (for example, a projector screen).
18| I/O (1 & 2) on a 3-pin Terminal Block Connector (GND is common for I/O and RS-232).| Connect the general input and output ports to connect to I/O-controlled devices (for example, a sensor).
19| RS-232 3-pin Terminal Block Connector| Connect to a serial-controlled device (for example, a projector).
20| 1G LAN PoE RJ-45 Connector| Connect to a PC via a LAN. Receives Power (when PoE powered).
21| RESET Recessed Button| For restoring factory default settings, press the RESET button and connect power to device (keep pressing longer than 6sec after power connection)
Set to Receiver mode by default.
22| PoE LAN/HDBT Selection Switch| Select the PoE providing source, either the LAN (default) or the HDBT port.
23| 48V DC Power Connector| Connect to the power supply (when not PoE powered).

The terms HDMI, HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.

Step 3: Mount EXT3-21-XR-TR

Install EXT3-21-XR-TR using one of the following methods:

Attach the rubber feet and place the unit on a flat surface.
Fasten a bracket (included) on each side of the unit and attach it to a flat surface (see www.kramerav.com/downloads/EXT3-21-XR-TR).
Mount the unit in a rack using the recommended rack adapter (see www.kramerav.com/product/EXT3-21-XR-TR).
Ensure that the environment (e.g., maximum ambient temperature & air flow) is compatible for the device.
Avoid uneven mechanical loading.
Appropriate consideration of equipment nameplate ratings should be used for avoiding overloading of the circuits.
Reliable earthing of rack-mounted equipment should be maintained.
Maximum mounting height for the device is 2 meters.

Step 4: Connect inputs and outputs

Always switch OFF the power on before connecting it to your EXT3-21-XR-TR.
The diagram displays the EXT3-21-XR-TR on the Receiver side. It is also relevant for the Transmitter side.

Connecting the audio output
To a balanced stereo audio acceptor:

To an unbalanced stereo audio acceptor:

Wiring the RJ-45 Connectors
This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45 connectors.

EIA /TIA 568B

PIN	Wire Color
1	Orange / White
2	Orange
3	Green / White
4	Blue
5	Blue / White
6	Green
7	Brown / White
8	Brown

To achieve specified extension distances, use the recommended Kramer cables available at www.kramerav.com/product/EXT3-21-XR- TR.
Using third-party cables may cause damage!

Step 5: Connect power

Connect the power cord to EXT3-21-XR-TR and plug it into the mains electricity. Alternatively, receive power either from the HDBT port or the LAN port.
Safety Instructions (See www.kramerav.com for updated safety information)

Caution:

For products with relay terminals and GPI\O ports, please refer to the permitted rating for an external connection, located next to the terminal or in the User Manual.
There are no operator serviceable parts inside the unit.

Warning: