The new IntelliKnight ® SK-IP-2 and SK-IP-2UD are IP communicators, UL listed for monitoring of Silent Knight fire alarm panels.(See compatibility table) The SK-IP-2 has two supervised inputs, and two additional outputs.The SK-IP-2UD version 6.0 adds a modem daughter board (2UD) that supports upload/download over the Internet or a customer's Intranet for IntelliKnight models 5820XL and 5808 FACP’s. These IP Communicators are UL 864 listed for signaling under Other Transmission Technologies and comply with NFPA 72 requirements. Refer to the IP Communicator Series Installation Document PN 53109 for more information.