Edge device. An edge device is a device which provides an entry point into enterprise or service provider core networks. Examples include routers, routing switches, integrated access devices (IADs), multiplexers, and a variety of metropolitan area network (MAN) and wide area network (WAN) access devices.
1 Sinus barotrauma occurs when there is a difference in pressure between the air in the sinuses and the pressure outside. 2  You may experience pain around your cheek bones or above your eyes.  You may also experience headaches.
When they do occur, sick sinus syndrome symptoms may include: 1  Slower than normal pulse (bradycardia) 2  Fatigue. 3  Dizziness or lightheadedness.  Fainting or near 1  fainting. Shortness of breath.  Chest 1  pains. A sensation of rapid, fluttering heartbeats (palpitations)