Matrix receiver unit: at-hd88m-r – Atlona AT-HD88M-SR User Manual
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6
Matrix Receiver Unit: AT-HD88M-R
Input side
 
 
 
 
Output side
 
 
 
1. +5V DC: spare power jack for over 60m transmission when the receiver AT-HD88M-R may
need external power to work
*
2. A/V SIGNAL: connect a solid Cat-5/5e/6 cable between the respective A/V SIGNAL ports on
the AT-HD88M-S & AT-HD88M-R
3. CHANNEL CONTROL: connect a solid Cat-5/5e/6 cable between the respective CHANNEL
CONTROL
ports on the AT-HD88M-S & AT-HD88M-R
4. INPUT CHANNEL: LED display to show the currently selected HDMI
™
input source
5. INPUT SELECT: push-in button for switching input sources in sequential order 
6. Signal Level 0-7: adjust the 8-level equalization control to the received HDMI
™
signals. The
HDMI
™
signal level varies from 0 (strongest) to 7 (weakest) for respective transmission length
from longest possible range to short distance. It is recommended to switch from 7 to 0 to find 
the optimal visual experience. 
7. HDMI
™
OUTPUT
: connect to HDTV with a HDMI
™
cable
8. IR RECEIVER: plug in the IR receiver
*
The AT-HD88M-R has been tested extensively and found that it doesn’t require external power
supply. If in rare situation you find it cannot work with the AT-HD88M-S, please use any +5V 
power adapter to plug in the power jack and see if it can work. If not, please contact your 
technical support for further service. 
1
Source device’s 
remote control 
AT-HD88M-SR’s 
remote control 
3
2
4 5
7
6
8