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IR-232 IR To RS-232 Interface

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How It Works

		]3:1025 (Push) ]3*1025(Release)
IR Code		RS-232 String

The IR-232 translates the incoming IR command into an equivalent, or native, RS-232 command. Rather than simply repeating the RS-232 command as long as the remote sends the IR code, the IR-232 will send a single command when the button is pushed, and a release code when the button is released.

IR-232 Native Code Structure

Here’s how to interpret the IR-232 native codes:

• Code format: ”]”
• Attention Byte — The “]” character starts the string
• Code Type — Manufacturer ID
  
  

  ID	Manufacturer	Rev
  1	Samsung	1.2
  2	NEC	1.2
  3	Sony	1.2
  4	Sharp, CR (4,9)	1.2
  5	Philips RC5	1.2
  7	JVC	1.2
  8	Mitsubishi, CR (5-8)	1.2
  9	Tivo	1.6

  
  
• Push/Release Byte — “:”= Push, “*” = Release
• Hex Pattern — Typically, the first 2 are product ID (projector, TV, VCR, etc), then the function.
• Carriage Return – a carriage return completes the statement

In addition to sending the native RS-232 codes for push and release, the IR-232 can provide alternate commands to meet your application requirements.

• Native Strings – sends the native RS-232 command
• Custom Strings – sends a custom string, such as a video projector input command
• Short Strings – sends a standard code, such as “!*” for every release, common for panel interface applications
• Nothing – sends nothing, typical for custom control button releases

Direct Control - You are using the IR-232 to directly control a projector, plasma or other device, translating incoming IR commands into custom control strings, using no release strings. If you use 10 characters for each command name and custom RS-232 string, you can store up to 250 commands.

Panel Interface - You are using the IR-232 to integrate an IR wireless remote into a custom control system. The best approach is to use the native Pushes and the Short Release String (“!*”). The Short Release doesn’t use any memory, and you can take advantage of the Release code in programming to ramp volume or continuously change channels when a button is pushed and held.

Assuming you assign a 10-character name to each IR command to document operation, you can create about 500 commands. If you don’t assign a name, and simply use the IR-232 to generate native RS-232 commands and default releases, you can integrate an infinite number of IR to RS-232 commands.

Designed for versatile installation, the compact IR-232 can be operated on a tabletop, attached to a display, or rack-mounted 3-across, mixed with other CR System Tools, using the optional single-rack height RK3 Rack Kit.

For applications that require high-quality S-Video conversion and Closed Captioning, use the IR-232C, another simply smarter CR System Tool solution. .

• Converts composite video input to S-Video signal for improved image quality, employing digital adaptive 2-D Y/C separation filtering, improving gain and phase matching while reducing cross-luminance and noise
• Selects video termination and boosts separate Y/C video gain using front-panel settings
• Offers flexible mounting options for fixed or free-standing applications
• All connectors accessible from one side, simplifies wiring
• Slimline metal enclosure can be attached to video units or any flat surface
• Rack-mounts in optional RK3 Rack Kit, up to 3 units can be mounted side-by-side, connections face back of rack
• Includes 100 mA DC power supply (domestic only)
• Available for NTSC (IR-232) and PAL (IR-232-PAL) video formats