Contemporary Research ICW-STA User manual

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www.contemporaryresearch.com
Product Manual
ICW-STA
Video Display Controller
Ver. 2.0 January 20, 2003

Contemporary Research Corporation 2 ICW-STA
Table of Contents
Overview............................................................................................................................................. 3
Specifications...................................................................................................................................... 4
Physical .................................................................................................................................................4
Front Panel ............................................................................................................................................4
Rear Panel.............................................................................................................................................4
RF Tuner ...............................................................................................................................................5
ICW-Net ................................................................................................................................................5
Status Indication ....................................................................................................................................5
Optional Internal Character Generator......................................................................................................5
Accessories............................................................................................................................................5
Installation ......................................................................................................................................... 6
AC Power...............................................................................................................................................6
RF Coax and iCW-Net Connection ............................................................................................................6
A/V Setup ..............................................................................................................................................6
External IR Sensor..................................................................................................................................7
Programming the IC-RC Remote..............................................................................................................7
Audio Settings........................................................................................................................................7
On-Screen Menus...................................................................................................................................8
RS-232 Control Protocol ..................................................................................................................... 9
Overview ...............................................................................................................................................9
Command String Structure ......................................................................................................................9
RS-232 Commands ........................................................................................................................... 10
RS-232 Responses ............................................................................................................................ 13
Response String Structure..................................................................................................................... 13
iC-Net Zones ..................................................................................................................................... 15
System Map ...................................................................................................................................... 16
Typical RF and ICC-Net Signal Flow ................................................................................................. 17
iCW-Net Wiring ................................................................................................................................. 18
RK1 Single Rack Kit .......................................................................................................................... 19
Physical ............................................................................................................................................... 19
RK2 Side-by-Side Rack Kit................................................................................................................ 20
Safety Instructions ........................................................................................................................... 21
Limited Warranty and Disclaimer ..................................................................................................... 22

Contemporary Research Corporation 3 ICW-STA
Overview
The Contemporary Research ICW-STA is a versatile iCW-Net controlled TV tuner featuring optional on-
screen text, stereo audio, 125 channel access, front-panel operation and feedback, and intelligent
control. Fully programmable, the unit can restore all settings on power-up from non-volatile memory.
A list of channels can be stored in memory, used to provide convenient channel up/down operation
and restrict direct access to other channels.
An optional onboard character generator provides on-screen text for channel names, interactive
menus, and system feedback. Switchable inputs for NTSC video and stereo audio are included for
display of PC graphics, a character generator information channel, camera or other A/V sources.
High-speed 2-way control and feedback is carried over a wired twisted-pair network using Category 5
or Category 3 wiring and connectors. Compatible with the Contemporary Research ABC Media
Retrieval System and iC Commander software, the ICW-STA can be networked with up to 4000 TV
and Video Display controllers. For custom systems applications, all ICW-STA units and other CR
devices can be accessed from a single RS-232 port on an ICC-HE or ICW-HE Head-End Network
Controller.
•Tunes up to 125 CATV HRC/IRC or broadcast channels
•Delivers stereo audio with programmable volume, bass, and treble levels, as well as stereo,
mono and SAP audio modes
•Stores programmable tuning ring in memory for simplified channel up/down access
•Networks with up to 4,000 TVs through an ICC-HE or ICW-HE Head-End Network Controller
—2-way commands and response carried over Category 3 or 5 wiring
—Units instantly respond to individual, zone, and all-call commands
•Displays on-screen channel labels, interactive text menus, and system feedback with onboard
character generator
•Provides front-panel control for power, volume, and channel and LED feedback for power and
iC-Net operation
•Includes stereo A/V inputs to display video from PCs, overheads, cameras and other video
sources
•Restores all operation status after loss of power from data stored in non-volatile memory
•Enables and disables front-panel control via iC-Net protocol
•Mounts free-standing or in 19” equipment rack with optional mounting brackets

Contemporary Research Corporation 4 ICW-STA
Specifications
Physical
Size: 8.5" [216mm] wide x 1.75" [38mm] height (1RU) x 6.0" [153mm] deep
Weight: 1.5 lbs [0.68kg]
Enclosure: All aluminum with durable black powder coat paint
Mounting: Surface mounting with optional RK2 mounting kit
Front Panel
Push Buttons: Channel up and down, Volume up and down, and Mute A/V
Indicators: Mute A/V: Red LED lights when mute is on
Net: Green LED for iCW-Net bus, flashes once per second if active
COM: Yellow LED stays on, flashes when receiving IR data
ERR: Red LED indicates a problem within the VDC
Channel/Mode: 3 digit, 7 segment red LED status display
Rear Panel
Power In: 2.1mm coaxial jack (inside center conductor positive), 350 mA maximum
11.5 to 16.5 VDC, 12 VDC typical (may be unregulated)
North American version includes UL/CSA listed wall power supply
RS-232 Control: Not operational in this model
iCW-Net RJ-45 input for iCW-Net connection
IR In: 3.5mm stereo jack for optional IR-RXC IR Receiver
Sleeve= DC power+ from power jack input, limited to less than 100mA
Ring=DC power– (GND)
Tip= IR data signal
Antenna/Cable: ‘F’, female, 75 ohm impedance
External Inputs: Video - RCA female jack, NTSC composite
Audio – 2 RCA female jacks, unbalanced stereo, 20K ohms impedance
A/V Outputs: Video - RCA female jack, NTSC composite
Audio – 2 RCA female jacks, unbalanced stereo, 1K ohms impedance
Audio Response: BTSC Stereo Total Harmonic Distortion (THD): 1% maximum, 0.3% typical
BTSC Stereo Channel Separation: 25dB minimum, 30dB typical
BTSC Stereo Response: 50Hz to 12KHz
Mono Total Harmonic Distortion (THD): 0.5% maximum, 0.1% typical
Mono mode frequency response: 20Hz to 20KHz
Audio Level: 500mV RMS typical output level at max volume
Volume level 0dB to –62dB and mute in 64 steps

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RF Tuner
Frequency Range: NTSC television 55.25 to 801.25 MHz, 62.5KHZ fine tune resolution
Maximum Input: +20dBmV
Video Gain: ±5% maximum, 2% typical
Video Phase: ±3 degrees maximum, 2 degrees typical
ICW-Net
Connector RJ-45 female 8-pin Telco jack
RS-485 type data requiring at least 2 twisted wire pairs with shield or fifth conductor
Recommended Wire: CAT3/CAT5 compatible unshielded, max 3000 feet [914m] from iC Head End
Status Indication
The Net and Power LEDs have special modes that help system setup and troubleshooting.
Power LED Off = LED off, On =LED Blinks
Net LED Blinks once per second when it is receiving network data
LED Response
Off – DC power to unit missing or other internal power problem
Solid On – no network communication
Blinks once per second - communicating over network
The Head-End Network Controller sends out a “heartbeat” command once every
second that will flash the Net LED.
Optional Internal Character Generator
Characters: ASCII
Format: White text over video or white text with black background over video
Function: Channel labels, interactive menus, messages, and system feedback
Accessories
Includes: 12 VDC power supply, 400 mA (Domestic shipments only)
Accessories: Internal Character Generator
IC-RC Wireless IR Remote
IR-RXC External IR Receiver (required for use of IC-RC)
RK1, RK2 Kit for rack-mounting STA

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Installation
AC Power
1. Insert DC power supply plug into 12 VDC jack on the VDC.
2. Plug power adaptor into AC wall outlet.
3. The Net LED should turn on and stay lit (indicates no network communication).
RF Coax and iCW-Net Connection
1. Connect the RF Coax cable into the Antenna/Cable input on the STA.
2. Connect the iCW-Net RJ-45 plug into the iCW-Net input on the STA.
3. If the iCW-Net signal is operating, the Net LED will now blink once per second.
A/V Setup
1. Connect video and stereo audio outputs of the STA into the video and audio inputs of the projector.
2. The ICW-STA may be switched to provide mono audio (see SO Mono/Stereo command on page 10), in
mono mode, both audio outputs will provide mono sound.

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External IR Sensor
The ICW-STA does not include front-panel IR sensors. An IR In jack is provided on the back for installation of
an optional external IR-RXC IR Receiver. The external sensor is switchable for 38 KHz and 57 KHz sensing..
1. Install the IR-RXC in a good location for IR reception.
2. Set the IR-RXC IR sensor to 38 KHz or 57 KHz sensing.
a. Sleeve= DC power+ from power jack input, limited to less than 100mA
b. Ring=DC power– (GND)
c. Tip= IR data signal
3. Run the wire to the IR In jack on the STA.
Programming the IC-RC Remote
In order to complete the setup of the STA, you’ll need the IC-RC IR Remote to use the On-Screen Menus.
Typically, the remote is shipped ready to communicate to the STA (Code 9). Just in case, here’s how to set the
format of IR codes in the remote:
1. Press and hold the Select button and a numeric key for the code # below.
2. Release the two keys at the same time.
3. The remote will now send the selected codes.
4. Remote will keep the codes, even if battery power is lost.
IR Code Format Code
Zenith Smart TV 1
Philips Smart TV 2
RCA Smart TV 3
Contemporary Research 38 KHz 4
Contemporary Research 57 KHz (default) 9
Audio Settings
The ICW-STA includes high-quality stereo audio control for volume levels, power-up volume preset,
stereo/mono modes, as well as bass and treble gain. The settings can be changed by RS-232 control and
programming through the Head-End Network controller’s RS-232 port. Refer to commands listed on page 12.
Bass Level Settings
Level Gain(dB) Level Gain (dB)
19 16.5 9 1.5
18 15.0 8 0
17 13.5 7 -1.5
16 12.0 6 -3.0
15 10.5 5 -4.5
14 9.0 4 -6.0
13 7.5 3 -7.5
12 6.0 2 -9.0
11 4.5 1 -10.5
10 3.0 0 -12.0
Treble Level Settings
Level Gain (dB)
8 12
7 9
6 6
5 3
4 0
3 -3
2 -6
1 -9
0 -12

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On-Screen Menus
The remaining installation steps use the optional IR remote, IR-RXC IR Receiver, and the optional character
generator of the STA.
1. Touch Menu, then 999, then Enter.
2. The text CR MENU> should appear on the screen.
3. Key in one of the commands shown below, then press Enter to activate.
4. Note that, in Menu mode, the Channel Down key acts as a backspace/delete key.
Command Function
45678 Display firmware version
45679 Display the unit’s Device #. At this point, you can use the Channel Down key as a
Delete key, enter a new device # with the remote’s numeric keypad, then hit Enter
to save the new number.
65478 Reset unit, similar to disconnecting power then restarting.
65487 Initialize to factory default settings: Power on, unlocked, display channel 11, channel
ring set to 4, 5, and 11, Group 0, stereo.
65480 Enable constant Net transmit to the Head-End. This is used for measuring the signal
strength of the unit’s RF output. Press Enter to stop transmitting, or the unit will
automatically stop after 50 seconds.
65482 Shows Net RX if receiving the iC-HE’s “heartbeat” pulse once per second, !NET RX
if not.

Contemporary Research Corporation 9 ICW-STA
RS-232 Control Protocol
Overview
RS-232 control for up to 4000 Tuners, TV Controllers, and Display Controllers is provided through an iC-series
Head-End Network Controller. The ICC-HE Head-End manages iC-Net communication over RF Coax to ICC2-
format controllers as well as ICW-format controllers over twisted-pair Cat3/5 wiring. The ICW-HE Head-End
operates on the twisted-pair network only.
Each unit is assigned a unique device number from 1 to 4000 to which control commands are addressed. The
devices are organized into 16 zones of 255 devices. All the devices in each zone will respond to a single “virtual
device number” — one device number that represents all devices in each zone. There is also a global device
number, 4095, that will command all devices in the system. This feature dramatically speeds up system
operation and programming, because one command can affect an entire group of devices—or all. To take
advantages of this feature, review the section iC-Net Zones in this manual.
In ABC Media Retrieval Systems, we reserve the first group of devices, 1-255, for components operating on a
connected control system. Zones 1-16 are used for CR TV Controllers, Video Display Controllers and Tuners. As
it’s unlikely any system will use all 4000 devices, this may be a good device standard for your system as well.
The Remote RS-232 port on the Head-End Network Controller can communicate from 1200 to 38.4K baud. The
factory default setting is 19.2K baud, 8 data bits, No parity, and 1 stop bit.
Command String Structure
Characters in command strings are expressed in a combination of hex and ASCII characters. For clarity, the
following protocol examples use the following conventions:
•Single-byte hex numbers are preceded by the ‘$’ symbol
•ASCII characters or strings are enclosed in single quotes
•Numbers not marked as hex or ASCII are a single decimal byte
•Parameters shown in < > brackets are single byte
•A series of multiple commands or parameters are set apart by [ ] brackets
•Commas separate the bytes, but are not part of the protocol
•Double quotes enclose the command string, but are not part of the protocol
Command format:
“$A5,<dh>,<dl>,<ncb>,<cmd1>,<para> [<cmdN>]"
$A5 Starts the command
<dh> The zone or high order byte of the device
<dl> The unit or low order byte of the device (0 for global zone)
<ncb> The number of command bytes to follow
<cmd1> The first command byte
<para> Command parameters (not used by all commands)
[<cmdN>] Multiple commands can be concatenated, with byte count added to <ncb>

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RS-232 Commands
Command Description
Power Off P0 “$A5,<dh>,<dl>,2,’P0’ ” (6 bytes) Mutes all A/V
Power On P1 “$A5,<dh>,<dl>,2,’P1’ ” (6 bytes) Unmutes all A/V
Power Toggle PT “$A5,<dh>,<dl>,2,’PT’ ” (6 bytes) Toggles Mute A/V on/off
Operating
Parameters
TM “$A5,<dh>,<dl>,3,’TM’,<setting>” (7 bytes)
Sets up key functions in the STA
bit 7 – 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
Volume VL “$A5,<dh>,<dl>,3,’VL’,<vol level>” (7 bytes)
Sets volume level
0 = Mute
1 – 63 = Minimum level (1) to maximum volume (63)
Power-up
Volume
S5 "$A5,<dh>,<dl>,3,'S5',<volume>" (7 bytes)
Sets volume level when STA powers up
0 = restore to previous level
1 – 63 = Set from minimum (1) to maximum level (63)
Marquee Chan T2 “$A5,<dh>,<dl>,3,’T2’<channel> ” (7 bytes) – Sets default power-up channel
Sets default channel selected when unit powers up
Mono/Stereo S0 “$A5,<dh>,<dl>,3,’S0’, <mode>” (7 bytes) 0=mono, 1=stereo
Bass Gain S7 “$A5,<dh>,<dl>,3,’S7’, <mode>” (7 bytes) Sets bass gain, see chart on page 8
Treble Gain S9 “$A5,<dh>,<dl>,3,’S9’, <mode>” (7 bytes) Sets treble gain, see chart on page 8
Ts & Qs T-series channel commands select a channel and display the channel label on the
TV, while Q-series commands don’t show the on-screen text.
T Channel Up TU “$A5,<dh>,<dl>,2,’TU’ ” (6 bytes) – Tunes to next channel up in Tune Ring
T Channel Dwn TD “$A5,<dh>,<dl>,2,’TD’ ” (6 bytes) – Tunes to next channel down in Tune Ring
Force T Channel TC “$A5,<dh>,<dl>,3,’TC’, <channel>” (7 bytes) – Tunes to a specific channel
124 = RGB 2 input on TV
125 = RGB input on TV
126 = Select STA external A/V input (also selects TV video input)
127 = Select S-Video Input
0 = Blank video output to TV
255 = Unblank TV video (restore to previous channel)
Tip: Not all inputs are available on every TV make and model.
Select T Channel TT “$A5,<dh>,<dl>,2,’TT’ <channel>” (7 bytes) – Tunes channel if included in TR
Channel ? T? “$A5,<dh>,<dl>,2,’T?’ ” (6 bytes) – Request response for current channel
Q Channel Up QU “$A5,<dh>,<dl>,2,’QU’ ” (6 bytes) – Tunes to next channel up in Tune Ring
Q Channel Dwn QD “$A5,<dh>,<dl>,2,’QD’ ” (6 bytes) – Tunes to next channel down in Tune Ring
Force Q Chan QC “$A5,<dh>,<dl>,3,’QC’, <channel>” (7 bytes) – Tunes to a specific channel
Same special-function channels as in the T Channel Select section above
Select Q Chan QT “$A5,<dh>,<dl>,2,’QT’,<channel>” (7 bytes) – Tunes channel if included in TR

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.

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Command Description
Write Text DM “$A5,<dh>,<dl>,<ncb>,‘DM’, <start line>,<text color>,<background color>,
<background>,<size and shadow>,<timeout>,<message bytes>” (variable bytes)
Clears current text, displays text message over video (default) or blank background.
The built-in character generator can accept up to 40 characters of text (including
carriage returns), 28 characters per line. Use a hex $0D or decimal 13 in the text as
a carriage return, which will advance CG to the next line, first space on the right.
Start Line - 1-11
Text Color - 1-7= White
Text Background Color – 0-7=Transparent (no background)
Full screen background – 0=normal insert over video, 1=blank screen (blue)
Size and Shadow – 0-3=small text with drop shadow
Time-Out – 0=15-second display, 1=persistent
Persistent text stays on screen until the next DM, or new Menu or channel.
Ex1: “$A5,<dh>,<dl>,10,‘DM’, 2,7,0,0,1,0,’TEST’ ” displays the word TEST on the
second line, white text, inserted over video, small size with drop shadow, and timing
out after 15 seconds.
Ex2: “$A5,<dh>,<dl>,2,‘DM’ ” clears on-screen display, also clears persistent text
The STA uses white text and clear backgrounds when it receives a Text or
Background Color parameter between 1 and 7, and accepts values 0-3 for text size
and shadow. This allows compatibility with Smart TVs mixed in the same system
that can display other colors and fonts.
Fast Write DN “$A5,<dh>,<dl>,<ncb>,’DN’, <text> ” (variable bytes)
Clears display, writes specified text starting at column 1, row 1. $0D and hex $EA,
$EB, $DC, and $DB can be included, operate same as matching commands below.
Write Here DW “$A5,<dh>,<dl>,<ncb>,’DW’, <text> ” (variable bytes)
Writes specified text starting at present cursor position. Accepts same Hex as DN.
Row, Column DG “$A5,<dh>,<dl>,4,’DG’, <row>, <column>” (8 bytes)
Moves the cursor to the specified row and column position. If row is 0, then row will
not be changed, and if column is 0, then column will not be changed.
Cursor Column E7 “$A5,<dh>,<dl>,3,’E7’, <column>” (7 bytes) – sends cursor to specified column.
Cursor Row E8 “$A5,<dh>,<dl>,3,’E8’, <row>” (7 bytes) – sends cursor to specified row.
Return EB “$A5,<dh>,<dl>,2,’EB’ ” (6 bytes)
Moves cursor down to the first column of the next row.
Clear All EA “$A5,<dh>,<dl>,2,’EA’ ” (6 bytes)
Clears display, sends cursor to column 1, row 1.
Clear to End DC “$A5,<dh>,<dl>,2,’DC’ ” (6 bytes)
Clear on-screen display from cursor to end of screen, position stays the same.
Clear Line DB “$A5,<dh>,<dl>,2,’DB’ ” (6 bytes)
Clear on-screen display from cursor to end of line, cursor position stays the same.
Clear Spaces E9 “$A5,<dh>,<dl>,3,’E9’, <num spaces>” (7 bytes)
Clears specified number of spaces, starting from cursor to the right.
Text Timeout DQ “$A5,<dh>,<dl>,3,’DQ’, <time>” (7 bytes)
Sets screen timeout to specified time in seconds (1-254). If time is 0 or 255, any
text on the screen will persist indefinitely, or until cleared.

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RS-232 Responses
iC-Net devices will send a response over the network whenever there is there is a change in status or command
from an IR remote or front panel.
Response String Structure
Characters in response strings are expressed in a combination of hex and ASCII characters. For clarity, the
following protocol examples use the following conventions:
•ASCII characters or strings are shown enclosed in single quotes
•Numbers shown that are not in single quotes are a single decimal byte
•Parameters shown in < > brackets are single byte
•A series of multiple commands or parameters are set apart by [ ] brackets
•Commas separate the bytes, but are not part of the protocol
•Double quotes enclose the command string, but are not part of the protocol
Command format:
“ ‘<’,<dh>,<dl>,<nrb>,<rb1>, <para1> [<rbN>]"
‘>’ Starts the response
<dh> The zone or high order byte of the device
<dl> The unit or low order byte of the device (0 for global zone)
<nrb> The number of response bytes to follow
<rb1> The first response byte
<para1> Associated parameters, if any
[<rbN>] Multiple responses may be included
Response Description
New Channel T “ ‘<’,<dh>,<dl>,2,'T',<new channel>" (6 bytes)
Sent in response to T? command.
IR Function F “ ‘<’,<dh>,<dl>,2,'F',<IR Function>" (6 bytes)
Sent unit receives a new function command is pressed (1-8) or released (0) from the
IR remote.
0 = Release
1 = Play
2 = Stop
3 = Pause
4 = Fast Forward
5 = Rewind
8 = Record

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Response Description
IR Key K “ ‘<’,<dh>,<dl>,2,'K',<IR Key>" (6 bytes)
Sent when unit receives a new key command is pressed (10-116) or released (0) from
the IR remote.
0 = Release 105 = Media Menu
10 - 19 = Numeric keypad entry 0 – 9 106 = Cursor Right
21 = Enter 107 = Cursor Left
22 = Channel Up 108 = Cursor Up
23 = Channel Down 109 = Cursor Down
29 = Menu 110 = Media Select
101 = Previous Channel 116 = Timer
The 0 – 9, Channel Up/Down functions are sent only if enabled in the TM command
(Bit 2 = 1). The Channel Up/Down responses will be sent if the Tune Ring contains no
channels – see Ex2 in the Tune Ring command section.
IR Menu M “ ‘<’,<dh>,<dl>,5,'M',<msh>, <msl>, <mph>, <mpl>" (9 bytes)
Sent when unit receives a new Menu command is pressed or released (0) from the IR
remote. Menu Selection high and low bytes are in <msh> and <msl>. Menu Parameter
high and low bytes are in <mph> and <mpl>.
A Menu command is initiated by pressing the Menu key, followed by a numeric entry,
then the Enter or Channel Up key. During the Menu process, the Channel Down key
acts as a backspace or delete key.
Some selections that need only a single numeric entry and will have a parameter value
of zero (0). Those keys are 0, 8, 9, 18, 20, 30, 900, 911, and 912.
Menu selections that will prompt the user to enter a second parameter entry are:
1 = Select Media
2 = Password
3 = Chapter Search
4 = Frame Search
11 = Channel
21 = Page Zone
22 = Page Room
25 = Go
21 = Attach Zone
32 = Attach Room
Tip: The Menu entries are active even if the TV power is off.
Device
Response
SP " '<',0,0,4,'SP',<number devices present>,<number devices expected> (8 bytes)
Sent in response to HE status query.
Tip: If the number of present and expected devices match, the green Net LED on the
HE will blink once per second. If the two numbers do not agree, the LED blinks twice
per second.

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iC-Net Zones
To simplify controlling groups of devices, iC-Net is divided into 16 zones of 255 devices. All the
devices within each zone can be controlled simultaneously by sending a command to a single “virtual
device number”.
For example, noting the zone chart below, if we send a Power On command to device #256, any TV
controller numbered between 257 and 511 will instantly turn on. If we send a Power Off command to
device #4095, all devices in the system will turn off.
This is an immensely powerful feature, because most systems can only address one device at time. So
if you need to turn off all 50 TV in a zone, you would need to send 50 commands. In addition to the
hassles of creating multiple commands, there would be a long delay between the first and last
command. One command, instant response is easier.
As we noted before, ABC Media Retrieval Systems reserve Zone 0 for devices used in the central
control system, 1 -15 for iC-Net devices. This structure may be useful for your application, or you
could use Zone 0 just like any other iC-Net zone.
Zone First Device Last Device Virtual Device
0 1 255 0
1 257 511 256
2 513 767 512
3 769 1023 768
4 1025 1279 1024
5 1281 1535 1280
6 1537 1791 1536
7 1793 2047 1792
8 2049 2303 2048
9 2305 2559 2304
10 2561 2815 2560
11 2817 3071 2816
12 3073 3327 3072
13 3329 3583 3328
14 3585 3839 3584
15 3841 4000 3840
All Zones 4095
Tip: You've probably figured out that you never want to assign a virtual device number to an
actual device in the system. If you assigned #1536 to a device, all the TV controllers in Zone
6 would respond every time you sent a command to that one device.

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System Map
One of the key tasks for iC-Net integrators is to create logical System Map, assigning device
numbers to TV controllers so they fall into physical zones useful to the client. The device mapping
could be sorted by type or location; whichever suits the application.
iC-Net Zone Zone Room Device
1 W 1st Floor 256
W151 260
W152 261
W153 262
W154 263
2 W 2nd Floor 512
W251 560
W252 561
W253 562
W254 563
3 E 1st Floor 768
E151 860
E152 861
E153 862
E154 863
4 E 2nd Floor 1024
E251 1060
E252 1061
E253 1062
E254 1063
5 Coffee Areas 1280
G100 1300
G150 1350
G151 1351
6 Day Care 1536
TV 1 1600
TV 2 1601
7 Hallways 1792
W1 1800
W2 1801
E1 1803
E2 1804
8 Office 2048
Admin 2049
A/V Center 2050
All Zones All 4095

Contemporary Research Corporation 17 ICW-STA
Typical RF and ICC-Net Signal Flow
The diagram below shows the structure of a typical Contemporary Research media retrieval system.
One of the key aspects for iCC-Net communication is to provide a forward and return (sub-channel)
path for data.

Contemporary Research Corporation 18 ICW-STA
iCW-Net Wiring
Use Category 3 or Category 5 wire, 4 pair, unshielded, 24 AWG.
The iCC-HE and iCW-HE Head-End Network Controllers include three iCW-Net ports for
twisted-pair wired networking. Control wiring can be home-run to ports or run in a star format,
using punch-down blocks to distribute signals to multiple iCW-Net devices. Open wiring runs do not
need termination.
Head-End
iCW-Net #1
Screw Terminals iCW Series
iCW-Net
RJ-45
PWR+
RXD+
RXD-
TXD+
TXD-
GND
8
7
6
5
4
3
2
1
TXD+
TXD-
GND
RXD+
RXD-
NC
NC
NC
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
Punch-down Blocks
RJ-45 Harmonicas
Wall Plates
RXD+
RXD-
GND
TXD+
TXD-
NC
NC
NC
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
BRN/WHT
WHT/BRN
GRN/WHT
WHT/BLU
BLU/WHT
WHT/GRN
ORG/WHT
WHT/ORG
8
7
6
5
4
3
2
1
iCW-Net #2, #3
RJ-45
TXD+
TXD-
GND
RXD+
RXD-
NC
NC
NC
6
5
4
3
2
1
8
7
6
5
4
3
2
1
BRN/WHT
WHT/BRN
GRN/WHT
WHT/BLU
BLU/WHT
WHT/GRN
ORG/WHT
WHT/ORG

Contemporary Research Corporation 19 ICW-STA
RK1 Single Rack Kit
Mounts One Unit in a Rack Mount
Physical
Size Long Bracket: 9.5" [206mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep
Size Short Bracket: 1.0" [22mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep
Weight: 3.25 oz [0.148kg]
Enclosure: All aluminum with durable black powder coat paint
Hardware: Qty 4 CS, Phillip, Flathead, 82deg, Black, 8-32 x .25”
Attach the long and short rack ears to the side and towards the front of the unit with the four (4)
supplied 8-32 by ¼” (black) countersunk screws.

Contemporary Research Corporation 20 ICW-STA
RK2 Side-by-Side Rack Kit
Mounts two units side by side in one rack unit
1. Remove top cover of the first 232-STA by removing the ten (10) black screws.
2. Attach cover of first 232-STA to the side of the second unit with three (3) supplied 4-40 by
1/4" (silver colored) panhead screws and split lock washers. Note that only one side of the
second 232-STA has the (3) built in nuts to accept the screws above.
3. Reinstall the bottom/chassis of the first unit underneath its cover and attach with just eight (8)
of the screws removed in step 1.
4. Attach short rack ears to the side and towards the front of each unit with the four (4) supplied
8-32 by 1/4" (black) countersunk screws.