Atlona AT-H2H-88M User Manual

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ARC enables a source connected to a display to route audio to an AVR or zone amp.

The S/PDIF port is used for two audio options, ARC or matrix source audio de-embedding. When 
using one, the other is disabled. By default the matrix comes with ARC turned off on all ports, this 
enables the S/PDIF to de-embed audio from the matrix source. To switch between ARC and matrix 
source audio, ARC must be turned on or off. Enable or disable ARC through RS-232 (see page 18) 
or front panel (see below).

1. Check to be sure the display supports ARC
2. Enable ARC on the HDMI output of the matrix through RS-232 (see page 18) or front panel 
    (see steps above)
3. Connect the HDMI Matrix output port to the ARC labeled input port on the display
 

NOTE: The Matrix must be connected to the display’s HDMI ARC input

4. Connect the source to a non ARC HDMI input port on the display
5. Connect the S/PDIF port to an AVR or Zone Amp
 

NOTE: The S/PDIF port used must be the same output number as the HDMI port connected 

 

            to the display

Steps

HDMI
Bidirectional HDMI w/ARC signal
S/PDIF audio loop-out

AT-H2H-88M

AT-H2H-88M

DC 24V

ENTER

POWER

EDID

MEMORY

ALL

DEFAULT

CANCEL

FUNCTION

1

2

3

5

6

7

8

4

COAXIAL OUT

HDMI OUT

HDMI IN

RS-232

ETHERNET

IR IN

FIRMWARE

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

Select output number
(1-4/8) to set ARC mode

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AT-H2H-XXM 
Select Input Number

Select Function Option

Hold for
5 seconds

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Output: # Current: On
Select mode 1: On 2: Off

Output: # Current: On
Select mode 1: On 2: Off

Output: # Current: Off
Select mode 1: On 2: Off

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