Frame relay switches interconnect via point-to-point lines or an ATM backbone. Frame relay provides Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs). They are logical ...

But there are other reasons to use transfer switches as well as ... can be connected to a different circuit or power source in [Maarten]’s house. The relay coil is energized by the primary ...

Menlo Micro has released another MEMS electro-mechanical relay, this time a single-pole four-throw (SP4T) dc-18GHz switch. MM5120 will handle 25W ... (left), the second contact is in the relaxed ...