Contemporary Research Corporation
11
ICW-STA
Command
Description
Tuner Mode
SO
"$A5,<dh>,<dl>,3,'S0',<tune mode>" (7 bytes)
Sets tuner mode to CATV or Broadcast/Antenna
0 = CATV
1 = Broadcast/Antenna
2 = HRC
Tune Ring
TR
“$A5,<dh>,<dl>,<ncb>,’TR’, [<chan 1>, <chan N>]” (variable bytes)
This command stores a Tune Ring, a series of preset channels accessed by channel
up/down commands.
Ex1:
“$A5,<dh>,<dl>,6,’TR’, 5,4,8,11” sets ring to channels 5, 4, 8 and 11
Tip:
The ring follows the stored order, channels do not have to be in ascending
order
x Ex2:
“$A5,<dh>,<dl>,2,’TR’ ” clears the Tune Ring, locks unit to current channel
Tip:
In the above mode, the IR Keypad channel up/down response to the Head-
End, so the system will know the user is trying to change channels. In
response, the system could change channels on a media sources, like a VCR
or satellite.
Ex3:
“$A5,<dh>,<dl>,8,’TR’, $82,5,$87,11” sets channels 2-5 and 7-11. You can
specify a range using MSB bit for the first channel; the next byte is the last.
Channel Labels TN
“$A5,<dh>,<dl>,<ncb>,‘TN’,<channel>,<label>” (variable bytes)
Stores an ASCII string as the channel label. The text will appear briefly when the
channel is selected, if the feature has been activated by STA Setup command (TM).
Ex1:
“$A5,<dh>,<dl>,3,‘TN’, ‘7’, ‘PBS’ ” STA displays PBS when 7 is selected
Ex2:
“$A5,<dh>,<dl>,3,‘TN’, ‘7’ ” Clears alpha label for channel 7
Ex3:
“$A5,<dh>,<dl>,3,‘TN’,0,0” Clears all alpha labels
Display Label
TC
“$A5,<dh>,<dl>,2,’TC’ ” (6 bytes) – Display current channel label for about 15 sec.
Control Lock
LM
“$A5,<dh>,<dl>,3,'LM',<control>” (7 bytes)
Locks out front panel and IR remote control functions.
Bit 7 Selects IR remote control operation (0=enabled, 1=disabled)
Bit 6 Selects volume control operation (0=enabled, 1=disabled)
Bit 5 - 1 Always 0
Bit 0 Always 0
Device Status
SP
"$A5,0,0,3,'SP'" (6 bytes)
Queries the Head-End for the number of devices present on the network and the
number of devices expected.