The IS-Unity-DP card is a communications card for the NXC Series UPS. It does not support GXT3 Series, this UPS model still use the IS-WEBCARD
The Unity card replaces only IS-WEBL, IS-485L and IS-IPBML cards.
The Unity-DP card (Dual Protocol) allows the customer to select two (2) simultaneous communication protocols, SNMP & modbus, or SNMP & BACnet, or Modbus & BACnet. For relay contact you will still need to order an IS-Relay card.
A link to the User Manual is shown to the right, as a PDF.