POWERSHIELD COMMUNICATION CARDS PowerShield Communication cards allow control and monitoring of multiple UPSs through SNMP protocol over LAN network or internet connection. When local UPS communications beyond the standard USB or RS232 are required, dry contact relay cards are available. Features: •Real-time dynamic graphs of UPS data (voltage, frequency, load level, battery level) . •Warning notifications via audible alarm, broadcast, mobile messenger, e-mail and SNMP traps •Historic data log stored in centralized PC database . •Simple firmware upgrade with one click . •Password security protection and remote access management. •Supports optional environmental monitoring detector for temperature, humidity and smoke in external SNMP card. •2 year product warranty.