kramer EXT3-U-R USB Receiver User Guide

USB 2 Type A Ports (1 to 4): Connect to USB devices. Connect the receiver directly to the power adapter for USB device charging.
ON LED: Lights green when locally powered by the adapter, orange when powered by PoC.

LINK IN RJ-45 Connector: Connect to the LINK OUT port on the EXT3-U-T.
PROG (Tx, Rx) 5-pin Terminal Block Connector: Connect for firmware upgrade.

RS-232 (Rx, Tx) (with common G pin): Connect for serial extension (9600 baud rate).
12V DC Power Connector: Connect to the power adapter.

Step 3: Mount EXT3-U-R
Install EXT3-U-R using one of the recommended methods provided in the manual.

Step 4: Connect inputs and outputs
Connect your devices to EXT3-U-R following the instructions provided. Always power OFF devices before connecting them.

Wiring the RJ-45 Connectors:
This section defines the TP pinout using a straight pin-to-pin cable with RJ-45 connectors. Ensure proper wiring as per the provided diagram.

Step 5: Connect power
The EXT3-U-R is powered via PoC. Follow safety instructions for power connection.

FAQ

Q: How do I update firmware on EXT3-U-R?
A: To update firmware, connect the PROG (Tx, Rx) terminal block connector for firmware upgrade as detailed in the manual.

Q: Can I use third-party cables with EXT3-U-R?
A: It is recommended to use Kramer cables available at www.kramerav.com/product/EXT3-U-R to avoid any potential damage. Third-party cables may not be compatible.
Q: What baud rate is supported for RS-232 communication?
A: Only 9600 baud rate is supported for RS-232 communication with EXT3-U-R.

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

Step 1: Check what’s in the box

EXT3-U-R USB Receiver
1 Bracket set
4 Rubber feet
1 Quick start guide

Step 2: Get to know your EXT3-U-R

EXT3-U-R

#	Feature		Function
1	LINK LED		Flashes blue when a link is established.
2	AUDIO OUT 3.5mm Mini Jack		Connect to an unbalanced stereo audio acceptor.
3	USB 2 Type A Ports (1 to 4)		Connect to USB devices. Connect the receiver directly to the power adapter in order to charge USB devices.
4	ON LED		Lights green when locally powered by the power adapter. Lights orange when powered by PoC.
5	LINK IN RJ-45 Connector		Connect to the LINK OUT port on the EXT3-U-T.
6	PROG (Tx, Rx)	5-pin Terminal Block Connector (with common G pin)	Connect for firmware upgrade.
7	RS-232 (Rx, Tx)	5-pin Terminal Block Connector (with common G pin)	Connect for serial extension (9600 baud rate).
8	12V DC Power Connector		Connect to the power adapter.

Step 3: Mount EXT3-U-R

Install EXT3-U-R 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-U-R).
Mount the unit in a rack using the recommended rack adapter (see www.kramerav.com/product/EXT3-U-R).

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

In this example EXT3-U-R is connected to the Kramer SWT3-41-U-T transmitter.
Always switch OFF the power on each device before connecting it to your EXT3-U-R.

Devices that are connected to the EXT3-U-R USB ports are powered/charged while connected.

Only 9600 baud rate is supported for RS-232 communication for EXT3-U-R.

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

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
It is recommended that the cable ground shielding be connected/soldered to the connector shield.	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-U-R. Using third-party cables may cause damage!

Step 5: Connect power

EXT3-U-R is powered via POC.

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: