PowerDsine PowerDsine was acquired by Microsemi in January of 2007. Its initial products were Ringing generators, as well as xDSL Remote Power Feeding Modules. PowerDsine supplied PoE Injectors, PoE Test Equipment and PoE ICs. Today, Microsemi Power Over Ethernet (PoE) switches offer industry leading solutions for any PoE situation. Their PoE switch portfolio enables delivery of up to 95 watts of flexible and reliable power over Ethernet to WLAN access points, VoIP phones, IP cameras, thin/zero clients and other Ethernet devices.