Most manufactures now come up with the IR blast; this is old technology with a new chapter. I remember the old Nokia 6600 having IR port which could do wonders (you could even control your traditional TV)
Safety Integrity Level compliance — a global standard for the safety level of control systems — is a key method manufacturers can use to ensure customers and partners that their products’ control systems are in top working order.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.