Tuning commands – Contemporary Research ICE-HE User Manual

Page 17

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Contemporary Research

17

ICE-HE Ethernet Head End

Tuning Commands

Command

Description

ICC

IRC

ICC

VDC

PRZ

PSC

ZS2

ICC1

IR

Operating
Parameters

TM “$A5,<dh>,<dl>,3,‟TM‟,<setting>” (7 bytes)

Sets up key functions in the unit
bit 7 = Selects TV frequency tuning mode, 0=CATV,1=Broadcast
bit 6 – 3 = 0
bit 2 = Channel up/down operation, 0=Tune Ring,

1=Send IR Keypad response

bit 1 = Numeric channel labels, 0=num labels off, 1=num labels on)
bit 0 = Alpha channel labels, 0=alpha labels off, 1=alpha labels on

4

4

1

1

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
3 = IRC

X

X

Marquee
Chan

T2 “$A5,<dh>,<dl>,3,‟T2‟<channel> ” (7 bytes)

Sets default channel selected when unit powers up

X

X

X

Video Loss
Detection

Q2 "$A5,<dh>,<dl>,3,'Q2',<video loss mode>" (7 bytes)

Selects response when a loss of video signal is detected
0=Both audio and video muted (default-blue screen for video)
1=Audio muted only
2=Video muted only
3=No muting (do nothing on loss of video)

X

X

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
3 = IRC

X

X

X

Tune Ring

TR Ex3: “$A5,<dh>,<dl>,9,‟TR‟, $82,5,7,$89,13” sets channels 2-5, 7, and

9-13. You can
specify a range using MSB bit for the first channel; the next byte is the
last.

X

X

1

1

1

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 TM
command.

Ex1: “$A5,<dh>,<dl>,6,„TN‟, „7‟, „PBS‟ ” unit displays PBS when 7 selected
Ex2: “$A5,<dh>,<dl>,3,„TN‟, „7‟ ” Clears alpha label for channel 7
Ex3: “$A5,<dh>,<dl>,4,„TN‟,0,0” Clears all alpha labels

X

X

X

X

Display
Label

TC “$A5,<dh>,<dl>,2,‟TC‟ ” (6 bytes) – Displays channel label for about 15 sec

X

X

X

X

Notes

1
4

1-way units do not send the TM K keypad responses for bit 2
IRC/VDC ignores TM Bit 7 (tuning), SO command sets tuning mode

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