An Alarm Receiving Center (ARC) is a secure, 24-hour control room with trained experts which can receive and process alarm signals from remote sites. It is also known as a Central Monitoring Station (CMS).

Alarm Monitoring Software (called "ARC Software" here) is a system designed to receive alarm signals and to process those signals with a Standard Operating Procedure (SOP) for the operator.

Sur-Gard is a standard alarm protocol from Tyco. It is defined as an alarm uploading protocol, mainly used in the command center.

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There are four ways to integrate ARC Software with Hikvision's Alarm Panel, CCTV products, and other technologies: DC09(SIA), Hik IP Receiver, HPNetSDK, and Hik IP Receiver Pro.

DC09(SIA): A standard protocol developed by the Security Industry Association for the purpose of defining how to send events from premises equipment to an Alarm Receiving Center.

HIK IP Receiver: Hikvision's Windows-based converter that provides capability of converting Hikvision's private uplink protocol (ISUP) to other industrial protocols.

HIK IP Receiver Pro: Hikvision's Windows-based converter which realizes conversion to different industrial protocols through Hikvision's Cloud-based P2P service (Hik-ProConnect).

HPNetSDK: Hikvision's specific SDK designed for ARC integration through P2P connections.

Here is the detailed architecture: