The OPTI-UPS .NETpower SNMP CARD and SNMP box provide you with most powerful UPS management and monitoring functions. No more need to have a PC directly connected to UPS for these purposes. A compact card inserted into SNMP card slot of your PS-B(1000~3000VA) or DS-B UPS series or a miniature SNMP box connected to PS800B to make your UPS a fully featured power protection system ready for remote control via Internet/Intranet or even public telephone network.