Product Manual 232-MCT Mono Caption Tuner Ver.5.1 March 7, 2013 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.
Table of Contents Overview ............................................................................................................................................. 3 Specifications ...................................................................................................................................... 4 Physical ................................................................................................................................................... 4 Front Panel ..................
Overview The Contemporary Research 232-MCT is an economical RS-232/IR controlled video tuner featuring mono audio, 125channel access in CATV, HRC, or IRC modes, closed captioning and intelligent control. Fully programmable, the unit can restore all settings on power-up from non-volatile memory. A list of accessible channels, called channel rings, can be stored in memory, used for convenient channel up/down control and to control direct access to unlisted channels.
Specifications Physical Size: Weight: Enclosure: Mounting: 8.5" [216mm] wide x 1.75" [38mm] height (1RU) x 6.0" [153mm] deep 1.5 lbs [0.
Specifications RF Tuner Frequency Range: Maximum Input: Video Gain: Video Phase: NTSC television 55.25 to 801.25 MHz, 62.
Tuner Setup There are several ways you can set up the 232-MCT tuner via RS-232. Tuner Helper Download this easy-to-use free software tool (Version 3.2.0) from the bottom of the www.crwww.com home page, or the Downloads page. The three tabs you’ll use are: Control – Acts a test control panel, sets up TV Standard and Volume.
Terminal It’s also easy to use an RS-232 Terminal app for setup. The 232-MCT is shipped set to Standard Cable, and the internal channel list is set to 2-126. To limit the channels, use the TR command and enter a list of channels. If your PC is XP and you still have Hyper Terminal, you can enter the setup commands in a Notepad text file, then select the page from HyperTerminal to clone the tuner. Download the HyperTune file from Download for a manual and a sample text file.
RS-232 Control Protocol Overview The 232-MCT full duplex RS232 scheme enables a system programmer to control all TV Tuner functions as well as monitor 3 groups of TV Tuner status. All commands are sent as ASCII strings. No delays between characters or commands are required, as data is interrupt driven and buffered. The 3 status groups are: Channel/Source Select, Audio Levels/Mode and Front Panel. Each of the groups has one ASCII status response string containing all of the status data for that group.
RS-232 Commands S0= Typical Setup Commands Set tune mode S2= TR= Set Unit # Set Tune Ring (TR) Example: ‘>2TR=2,4,7-10’ Q4= Label Mode with Status (0-3) 0=CATV 1=Broadcast 2=HRC 3=IRC 1-9 Limits access to specified channels, 120 chars max You can use dash for sequential channels, include 126 if you are using external AV inputs Stores unit #2 Tune Ring as 2,4,7,8,9,10 Sets on-screen channel label mode. Same as TM, current mode reflected in status, setting TM will also change Q4. (Ver 3.
RS-232 Commands VU VD VL VX VV VT VM Volume and Audio Ramp volume up Ramp volume down Ramps volume to level (0 – 63) Volume Mute off Stop volume ramp Toggle Volume Mute Volume Mute on Example: ‘>VM’ S5= Power-up volume S7= Set audio mode Status SQ Request Q Mode status Unit sends “Q” Mode status string SS ST Request Mode status Request Channel status Example: ‘>ST’ Request Audio status Q-series Commands Unit sends “S” Mode status string Unit sends “T” Channel/Source status string Returns Channel/
Character Generator Commands Before the introduction of the 232-STS, 232-MCT models offered an optional character generator, supporting an on-screen display that is 28 columns (characters) across by 11 rows (lines) down. An imaginary cursor represents the current screen write position. Writing text automatically increments the cursor to the next character space. The character text is always white. TM=
Keypad Channel Command If you’re using an external control system, this command will emulate the pressing of numeric keypad buttons for channel selection, which means you won’t need to use extra elements for capturing channel commands in your programming. The KC command will access any channel, KT will only access a channel stored in the Tune Ring. KC=0 KC=1 KC=9 KC KT=9 KT KD Emulates ‘0’ key, accesses any channel. Emulates ‘1’ key, accesses any channel. Emulates ‘9’ key, accesses any channel.
Tune Ring Commands and Replies $R Request Tune Ring $N=xxx Request Label Asks for reply with list of channels in Tune Ring Example: ‘>$R’ asks for list from Unit 1 Reply:’<1$TR2-31,35,52,126’ Asks for reply with channel text assigned to specific channel Example: ‘>$N31’ asks for label assigned to channel 31 Reply: ‘<1$TN038,ABC’ Terminal Communication Commands EF EN Echo Off Echo On ID Z! Z] Product ID Zap Soft Zap Characters received will not be re-transmitted (power up default) Characters receive
Response Strings Typical: [Attention] [Unit#] [data ...data] [cr] [lf] 232-MCT status response strings contain ASCII characters similar to those used for the same functions in command strings. An ASCII 'carriage return' and ‘line feed' follow each response string. Functions shown as N/A are not applicable; characters will appear in status strings as lower-case x.
RS-232 Cable Connections Single Tuner Control Wiring – Single Unit RS-232 Control Port 5 GND 2 RXD 3 TXD GND TXD RXD Channel Up Channel Down 5 3 2 4 9 9-pin D-sub female RS-232 wiring for control or programming should only use pins 2, 3, 5. Standard null modem cables such as the CC-COM cable that include all wires can be used for programming and control. Multiple Tuners Up to nine tuners can be daisy-chained from one RS-232 control port.
Rack Mounting Two options are available for rack-mounting tuners. RK1 Rack Mount RK2 Rack Mount RK1 Single Unit Rack Mount Size Long Bracket: Size Short Bracket: Weight: Enclosure: Hardware: 9.5" [206mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep 1.0" [22mm] wide x 1.75" [38mm] height (1RU) x 1.75” [38mm] deep 3.25 oz [0.148kg] All aluminum with durable black powder coat paint Qty 4 CS, Phillip, Flathead, 82deg, Black, 8-32 x .
Safety Instructions Read before operating equipment. 1. Cleaning - Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 2. Power Sources - Use supplied or equivalent UL/CSA approved low voltage DC plug-in transformer. 3.
Limited Warranty and Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material and workmanship under normal use for a period of two years from the date of purchase from CR. Should such a defect occur CR will repair or replace, at their option, the defective product at no cost for parts or labor. This warranty extends to product purchased directly from CR or an Authorized CR Dealer.
