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DirecTV DTV-MD0-0058 User Manual

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DIRECTV Set-top box information for the installer
 
DIRECTV Proprietary 
 
November 17, 2005 
Version 1.1.a 
Page 17 of 49 
DTV-MD-0058 
5  Data Port Command Details 
All parameters specified by square brackets “[ ]” are one (1) byte in length.   
5.1 Standby (0x81) 
Command Label 
Standby 
Command Byte 
0x81 
Input Parameter(s) 
None 
Return Data Stream 
None 
Return Response 
ACK_FCNOK 
: Always Success 
Return Value 
0x0000   
: Always Success 
Description 
The STB will execute a Standby command by placing the STB in the "low power" 
mode where the audio and video processing is disabled. 
This command has the same effect as turning the box "off" by pressing the front panel 
power button. 
 
 Example #1: 
Scenario –Turn off the STB.   
Input Standby Command  0xFA 0x81  
Input 0xFA 0x87 
Description 
Command Initializer 
Command ID 
 
Return Data – 0xF0 0xF4 
Input 0xF0 
0xF4 
Description Command 
acknowledgements 
Command 
successful 
5.2 Active (0x82) 
Command Label 
Active 
Command Byte 
0x82 
Input Parameter(s) 
None 
Return Data Stream 
None 
Return Response 
ACK_FCNOK 
: Always Success 
Return Value 
0x0000   
: Always Success