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On the top-left portion of the matrix, there are four sets of ve LED indicators. Each set of

ve LED indicators resides above each of the four output buttons.

LED indicators 1 through 4 represent each input on the matrix. If one of these LED

indicators are illuminated, then that means that the input is active.

The “Off” LED indicates that the output is turned off (masked). Refer to Masking /

Unmasking Outputs (page 18) for more information on masking and unmasking outputs.

Each of the output buttons are used to route inputs to outputs. When an output button is

illuminated, it represent the currently selected output. For example, in the illustration below,

Input 1 has been routed to Output A:

In addition, in the above illustration, Input 2 is routed to Output B, Input 3 is routed to

Output C, and Input 4 is routed to Output D. If the number of the input is the same as the

number of the output, then this is called the “one-to-one” routing state. This is the factory-

default routing state of the matrix.

Basic OperationBasic Operation

Viewing the Routing Status

Ultra HD 600 MHz 4x4 Matrix w/HDR and Audio De-Embedder

4K 60 Hz 4:4:4, HDMI 2.0, HDCP 2.2

1 2 3 4 Off 1 2 3 4 Off 1 2 3 4 Off 1 2 3 4 Off

A B C

Reset Power

Out DOut COut BOut AIn 4In 3In 2In 1

LRP

Out A

Out B Out C

Out D

RS-232

IP Control

USB Power

EXT-UHD600A-44

IR In/Ext

L/R L/R L/R

L/R

24V DC

DS US DS US

USB

LED indicates that Input 3

is the active input

Indicates that Output A is the

currently selected output