Add docs for Vanderbilt SPC hub/sensor/alarm. (#2666)

source/_components/spc.markdown

@@ -0,0 +1,34 @@
+---
+layout: page
+title: "SPC"
+description: "Instructions how to setup Vanderbilt SPC devices within Home Assistant."
+date: 2017-05-18 08:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: Hub
+ha_release: 0.45
+logo: vanderbilt_spc.png
+---
+
+Home Assistant has support to integrate your [Vanderbilt SPC](http://www.spc-intruder-detection.com/ssp-spc/) alarm panel and any connected motion, door and smoke sensors.
+
+Integration with SPC is done through a third-party API gateway called [SPC Web Gateway](http://www.lundix.se/smarta-losningar/) which must be installed and configured somewhere on your network.
+
+Home Assistant needs to know where to find the SPC Web Gateway API endpoints, to configure this add the following section to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+spc:
+  api_url: API_URL
+  ws_url: WS_URL
+```
+
+Configuration variables:
+
+- **api_url** (*Required*): URL of the SPC Web Gateway command REST API, e.g. `http://<ip>:8088`.
+- **ws_url** (*Required*): URL of the SPC Web Gateway websocket, e.g. `ws://<ip>:8088`.
+
+Supported sensors will be automatically discovered and added, however they will be hidden by default.
+