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COMMUNICATION PROTOCOL (CONTINUED)
PROTOCOL Commands
The following table references the commands the DVR supports (Table 11).
COMMAND
DIRECTION
DSKDN
From DVR
DSKUP
From DVR
DSCDV
To DVR
DSIBT
To DVR
DSBTQ
To DVR
DSBTR
From DVR
DSFWQ
To DVR
DSFWR
From DVR
DSPKM
To DVR
DSPKD
To DVR
DSPKU
To DVR
DSPKF
To DVR
DSPKT
To DVR
DSKDQ
To DVR
DSKUQ
To DVR
DSKFQ
To DVR
DSKTQ
To DVR
DSKDR
From DVR
DSKUR
From DVR
DSKFR
From DVR
DSKTR
From DVR
DSACK
From DVR
DSNAK
From DVR
RESPONSE
N/A
N/A
DSACK/DSNAK
DSBTR/DSNAK
DSBTR/DSNAK
N/A
DSACK/DSNAK
N/A
DSACK/DSNAK
DSACK/DSNAK
DSACK/DSNAK
DSACK/DSNAK
DSACK/DSNAK
DSKDR/DSNAK
DSKUR/DSNAK
DSKFR/DSNAK
DSKTR/DSNAK
N/A
N/A
N/A
N/A
N/A
N/A
Table 11. PROTOCOL Commands
DESCRIPTION
Key pressed
Key released (from press)
Change Display Video
Initiates IBIT System Test (PSM)
Requests last IBIT System Test results
IBIT System Test Response
Request Firmware Version
Firmware Version Response
Program Key Mode
Program Key Down Text Message
Program Key Up Text Message
Program Key Function
Program Key OSD Label Text
Request Program Key Down TX Message
Request Program Key Up TX Message
Request Program Key Function
Request Program Key OSD Label Text
DSKDQ Response
DSKUQ Response
DSKFQ Response
DSKTQ Response
Acknowledge Response; Used if PSM acknowl-
edges command
Not Acknowledged Response; Used if command
was not recognized by PSM or the command
contained errors
MPC-ML2DVR-UM(B) 3/2019
51
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