Contemporary Research 232-STSi User Manual
Product Manual
232-STSi
Stereo PAL TV Tuner, S-Video
Version 6.3 January 26, 2010
4355 Excel Pkwy, Suite 600, Addison, TX, 75001
Phone: 972-931-2728 • Toll-Free: 888-972-2728 • Fax: 972-931-2765
E-Mail: Sales@crwww.com • Website: www.crwww.com
Overview ............................................................................................................................................. 3
Specifications ...................................................................................................................................... 4
Physical ................................................................................................................................................... 4
RF Tuner .................................................................................................................................................. 4
IC-RC Remote Control (Optional) ............................................................................................................... 4
Front Panel .............................................................................................................................................. 4
Rear Panel ............................................................................................................................................... 5
Internal Character Generator/Captioning .................................................................................................... 5
Includes ................................................................................................................................................... 5
Options .................................................................................................................................................... 5
Front Panel Programming ................................................................................................................... 6
Modes 10 and above ................................................................................................................................. 6
Front Panel Programming Commands ................................................................................................ 7
Channel Tuning and Presets ............................................................................................................... 8
RS-232 Control Protocol ..................................................................................................................... 9
Overview ................................................................................................................................................. 9
General protocol specifications .................................................................................................................. 9
Command String Structure ........................................................................................................................ 9
General RS-232 Commands ...................................................................................................................... 10
Character Generator Commands ............................................................................................................... 13
Keypad Channel Command ...................................................................................................................... 14
IC-RC Remote Emulation.......................................................................................................................... 14
Preset Commands and Replies.................................................................................................................. 15
Terminal Communication Commands ........................................................................................................ 15
RS-232 Command Hints and Tips .............................................................................................................. 15
Response Strings .............................................................................................................................. 16
Channel/Source Status Response String (T): ............................................................................................. 16
Audio Status Response String (V): ............................................................................................................ 16
Front Panel Mode Status Response String (S): ........................................................................................... 16
Q Mode Response String (Q): ................................................................................................................... 16
RS-232 Cable Connections ................................................................................................................ 17
Single Tuner ............................................................................................................................................ 17
Multiple Tuners........................................................................................................................................ 17
Rack Mounting .................................................................................................................................. 18
RK1 Single Unit Rack Mount ..................................................................................................................... 18
RK2 Side-by-Side Rack Kit ........................................................................................................................ 18
Safety Instructions ........................................................................................................................... 19
Limited Warranty and Disclaimer ..................................................................................................... 20
Contemporary Research 2 232-STSi PAL TV Tuner
The Contemporary Research 232-STSi Stereo S-Video PAL Tuner is a versatile RS-232 controlled PAL TV tuner featuring high-
quality S-Video video and balanced A2/NICAM stereo audio output, switchable composite AV input, closed-captioning
and on-screen text, 125 Channel Preset memory, front-panel operation and feedback, and intelligent RS-232 control.
Designed for global applications, the 232-STSi is CE listed and receives PAL B/G/ H, D/K, and I standards, as well as
SECAM B/G, D/K, and L.
The 232-STSi features a new, versatile solution for auto-tuning broadcasts that allows the user to mix and match
different TV standards. For example, a viewer in Germany (PAL B/G, A2 audio) can also save presets for Belgian
broadcasts (PAL B/G, NICAM audio). Channel preset search, TV standard, add, and delete can be controlled from
optional iC-RC remote or control system programming.
An onboard character generator displays on-screen text for closed captioning, channel names, interactive menus, and
system feedback. Switchable inputs for composite video and stereo audio are included for display of PC graphics, VCR,
camera or other A/V sources. AV from inputs and off-air broadcast are output as composite video, S-Video and Stereo,
Mono, or Dual audio.
Tunes PAL CATV and off-air frequencies, storing up to 125 Channel Presets in memory, firmware version 6.2
adds SECAM L tuning.
Operates with free Tuner Helper software, available from www.crwww.com
Features intelligent auto-tuning of TV frequencies, with the ability to save channel presets that include the
frequency and TV Standard
Outputs S-Video signal for improved image quality for monitors, large-screen displays and video projectors,
employing adaptive comb and anti-aliasing filtering, as well as cross-color and cross-luminance reduction
Delivers balanced A2/NICAM Stereo audio with programmable volume, as well as Mono and Dual A/B audio
Switches between tuner and composite stereo AV inputs, output as composite and S-Video NTSC video
Operates using one of several control pathways:
o Full bi-directional RS-232 control and status feedback, AMX and Crestron modules available
Control up to 9 232-Series tuners from a single RS-232 control port
o PC control using free .NET Tuner Helper software (great for saving tuner channels and setup
information)
o Front-panel programming options for tuning, RS-232 and operation setup
o Optional IC-RC IR wireless remote, discrete IR and wired IR codes
o Contact closure channel up/down
Displays Line 22 closed-captioning and on-screen text channel names, interactive menus, and system
feedback
Restores all operation status after loss of power from data stored in non-volatile memory
Inserts blue screen video image when unit senses loss of video level
Mounts in 19" rack with optional RK1 or RK2 kit for dual side-by-side installation
Upgradeable firmware via S12 Flash program, downloadable from www.crwww.com
Includes IR In jack for external sensor or wired IR
Contemporary Research 3 232-STSi PAL TV Tuner
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: Rack mounting for one or two units side-by-side optional (RK1, RK2)
RF Tuner
Channels: Up to 125 Channel Presets in non-volatile memory
Frequency: 48 to 863 MHz, 50 KHz fine tune resolution
PAL: PAL B/G/H A2 and NICAM, D/K A2 and NICAM, I NICAM
SECAM: SECAM B/G A2, D/K, A2 and NICAM audio
SECAM L: No closed captioning, on-screen text or blue screen, or S-Video
Maximum Input: +20dBmV max, +10dBmV nominal
Video Gain: ±5% maximum, 2% typical
Video Phase: ±3 degrees maximum, 2 degrees typical
IC-RC Remote Control (Optional)
Keypad: Channel selection, press Enter to select channel
Volume: Up, Down and Mute
Channel: Channel Up, Down
Presets: Up, Down, Left, Right, and Top keys search, add, and delete channel presets
CC: Selects Closed Captioning
Input: Toggles between External AV input and tuner channel
Front Panel
RS-232 LEDs: Yellow LEDs light when RS-232 data is transmitted (TX) or received (RX)
Mute A/V: Mutes audio and video (blanks video)
Mute LED: Red LED lights when A/V is muted
Volume: Up and down buttons raises and lowers volume or selects programming mode
Channel: Up and down buttons select channel presets 1-125, 126 selects external AV inputs
IR LED: Red LED lights when receiving IR data, internal IR sensor below or from external
receiver (optional)
Display: Red LED 3 digit, 7 segment LED display for channels and modes
Stereo LED indicates Stereo and Dual modes
Contemporary Research 4 232-STSi PAL TV Tuner
Specifications
Rear Panel
Power In: 2.1mm coaxial jack (inside center conductor positive), 475 mA maximum
10.5 to 14.5 VDC, 12 VDC typical (may be unregulated)
RS-232 Control: DB-9 male connector
User selectable 300 to 19,200 (9600 default) baud, 8 data bits, no parity, 1 stop bit
Employs standard ASCII strings from any terminal program, PC, or control system
Can accept non-standard RS-232, including 0 to +5 VDC operation
Closures: 2 momentary closure inputs - Channel Up (Pin 4), Down (Pin 9), GND (Pin 5)
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
GND: Grounding lug
Antenna/Cable: IEC, female, 75 ohm impedance
Video Input: RCA female, NTSC composite
Audio Inputs: 2 RCA female stereo unbalanced, 20K ohms impedance
Maximum level +8dBu, (2V RMS), Reference: 0 dBu = .775 V RMS
Video Output: RCA composite output, 1V p-p at 75 ohm impedance,
S-Video Output: Mini DIN 4-pin, Y - 1V p-p at 75 ohms, C - 0.286 V p-p at 75 ohms (PAL only)
Audio Outputs: 5-Pin captive screw terminal, stereo, 200 ohm balanced/100 ohm unbalanced
Selectable for stereo, mono and dual modes
Stereo/Dual: Total Harmonic Distortion (THD): 0.6% maximum, 0.3% typical
Response: 30Hz to 14KHz, Channel Separation: 40dB minimum, 45dB typical
Mono: Total Harmonic Distortion (THD) 0.6%, 0.2% typical
Response: 20Hz to 20KHz
Level: +4 dBu (1.2V RMS) balanced, 0 dBu (.8V RMS) unbalanced, typical at max volume
+11.5 dBu (2.9V RMS) balanced, +8 dBu (2V RMS) unbalanced peak max output
Volume: 0 to -62 dB and mute in 64 steps
Internal Character Generator/Captioning
Characters: ASCII with international symbols
Format: White text over video or white text with black background over video,
Up to 32 characters, 13 lines
Function: Closed captioning, channel labels, interactive menus, messages, and system feedback
Captioning: Line 22 modes CC1-CC4, TT1-TT4, On/On with Mute/Off modes, CG text times out to
show captioning
Muting: Displays blue video image when loss of video is sensed
Includes
12 VDC power supply, 850 mA, 110/220 VAC, includes adapters for Euro, UK, Australian and US-style plugs
Plug-in adapter for unbalanced stereo RCA wiring
Options
CC-232 RS-232 Cable
IC-RC Wireless IR Remote, IR-RXC External IR Receiver also available, accepts Xantech® and other IR sensors
RK1 Kit for mounting single unit in 19" rack, RK2 Kit for mounting two units side-by-side in 19" rack
Contemporary Research 5 232-STSi PAL TV Tuner
To Enter a Front Panel Programming Mode:
1. Press and hold the Mute A/V button such that the red LED light above is lit (indicating Mute On).
2. Press Volume Up.
3. Release all buttons, the 232-STSi will now be in the front panel programming mode.
4. The front panel display is dedicated to programming information display while in this mode.
5. Changes are saved in non-volatile memory as they are entered.
6. The Volume up/down buttons scroll through programming modes 0 through 9 and 10+.
7. The Channel up/down buttons scroll through possible parameters for each mode.
To Exit the Front Panel Mode
Push and release the Mute All A/V button.
Modes 10 and above
When you select programming mode 10 and above, the Mode digit and decimal point will flash. For example, if
Mode 14 is selected, the display will show a flashing 4. - followed by the current parameter setting.
The Modes 10 – 14 are identical to RS-232 Commands Q0 – Q4.
Contemporary Research 6 232-STSi PAL TV Tuner
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