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Thanks for the articles. I know my question was pretty vague.
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Thanks for the articles. I know my question was pretty vague.

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I have a Panasonic video surveillance multiplexer that has a data input (RJ11) that allows for a controller unit to send commands for various functions ex. Select Cam, Pan, Tilt, Zoom. I'm an experienced .NET/Java developer but haven't ever done any work with hardware communication.<br />
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Can anyone share some links or knowledge on how i'd go about doing something like this?<br />
<br />
I think my biggest hurdle will be figuring out what type of commands i need to send the unit to carry out the various tasks. <br />
<br />
I've thought about taking the unit apart and making my own controller piece to wire directly into the buttons that manually control unit.
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I have a Panasonic video surveillance multiplexer that has a data input (RJ11) that allows for a controller unit to send commands for various functions ex. Select Cam, Pan, Tilt, Zoom. I'm an experienced .NET/Java developer but haven't ever done any work with hardware communication.

Can anyone share some links or knowledge on how i'd go about doing something like this?

I think my biggest hurdle will be figuring out what type of commands i need to send the unit to carry out the various tasks. 

I've thought about taking the unit apart and making my own controller piece to wire directly into the buttons that manually control unit.

Coding for hardware communication via RJ11

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

Hardware includes cell phones and other digital living devices, tablets, computers, servers, peripherals and components, printers and scanners, gaming consoles, networking hardware such as routers, hubs, switches and modems, storage devices and security equipment such as firewalls and other appliances.

Hardware

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).