Itsworkzone ™ What are Protocols? Protocols are a language that a device uses to communicate with the outside world. Every device has a protocol that is created by the device manufacture. We interface with the device in question at the protocol level. That means you can have as many different devices in your system as you want, regardless of device manufacture. Back to Itsworkzone™ Copyright 2000 National Intelligent Traffic Systems - 5131 Post Road, Suite 302 - Dublin OH,43017 1.800.304.9422