We are special in communicaiton power supply,switching power supply,radio power supply Communication power supply for trunking system(48vdc , 2u,19'' )Product features:1 ... is available for n+1 redundant structure3) Complete new power factor correcting circuit with a PF value close to ... and trunking base stations for digital systems Communication power supply for trunking system(48vdc , 2u,19'' )