diff --git a/board/aarch64/r2s/README.md b/board/aarch64/r2s/README.md
index 9e495350..55dd6290 100644
--- a/board/aarch64/r2s/README.md
+++ b/board/aarch64/r2s/README.md
@@ -8,6 +8,46 @@ The R2S does not have any onboard eMMC, so the only way to boot Infix on
 it is using and SD card.
 
 
+LEDs
+----
+
+The front system LEDs work as follows in Infix:
+
+| **Stage**      | **SYS** | **LAN** | **WAN** |
+|----------------|---------|---------|---------|
+| Power-on       | dimmed  | off     | off     |
+| Linux loading  | on      | off     | off     |
+| System loading | 1 Hz    | off     | off     |
+| System up      | off     | on      | off     |
+| WAN address    | off     | on      | on      |
+| Locate         | 1 Hz    | 1 Hz    | 1 Hz    |
+| Fail safe      | 5 Hz    | off     | off     |
+| Panic          | 5 Hz    | 5 Hz    | 5 Hz    |
+
+Powering on the device the SYS LED is turned on faintly (dimmed).  It
+remains dimmed while U-Boot loads the kernel, and turns bright red when
+the kernel starts.  It remains steady on until the system has started
+the LED daemon, `iitod`, which sets it blinking at 1 Hz while the rest
+of the system starts up.  When the system has come up successfully, the
+SYS LED is turned off and the green LAN LED turns on.  The WAN LED will
+turn on (green) when the WAN interface is up and has an IP address.
+
+> Compared to the `x86_64` Qemu target, it takes a while to parse all
+> YANG models and load `startup-config`, but the whole process should
+> not take more than 60 seconds, and usually a lot less.
+
+If a "find my device" function exists, it will blink all LEDs at 1 Hz.
+
+If `startup-config` fails to load Ínfix reverts to `failure-config`,
+putting the device in fail safe (or fail secure) mode.  Indicated by
+the SYS LED blinking at 5 Hz instead of turning off.
+
+If Infix for some reason also fails to load `failure-config`, then all
+LEDs will blink at 5 Hz to clearly indicate something is very wrong.
+
+In all error cases the console shows the problem.
+
+
 How to Build
 ------------
 
diff --git a/board/aarch64/r2s/rootfs/etc/iitod.json b/board/aarch64/r2s/rootfs/etc/iitod.json
new file mode 100644
index 00000000..ef95038a
--- /dev/null
+++ b/board/aarch64/r2s/rootfs/etc/iitod.json
@@ -0,0 +1,91 @@
+{
+    "input": {
+	"path": {
+	    "locate":       { "path": "/run/led/locate" },
+
+	    "status-prime": { "path": "/run/led/status-prime" },
+	    "status-ok":    { "path": "/run/led/status-ok" },
+	    "status-err":   { "path": "/run/led/status-err" },
+	    "status-crit":  { "path": "/run/led/status-crit" },
+
+	    "fault-prime":  { "path": "/run/led/fault-prime" },
+	    "fault-ok":     { "path": "/run/led/fault-ok" },
+	    "fault-err":    { "path": "/run/led/fault-err" },
+	    "fault-crit":   { "path": "/run/led/fault-crit" },
+
+	    "wan-up":       { "path": "/run/led/wan-up" },
+
+	    "startup":   { "path": "/run/finit/cond/run/startup/success" },
+	    "fail-safe": { "path": "/run/finit/cond/run/failure/success" },
+	    "panic":     { "path": "/run/finit/cond/run/failure/failure" }
+	},
+	"udev": {
+	    "power-a": { "subsystem": "power_supply" },
+	    "power-b": { "subsystem": "power_supply" }
+	}
+    },
+
+    "output": {
+	"led-group": {
+	    "port-link-act": {
+		"match": ["*:green:tp", "*:green:sfp", "*:green:port" ],
+
+		"rules": [
+		    { "if": "true", "then": { "trigger": "netdev", "link": 1, "rx": 1, "tx": 1 } }
+		]
+	    },
+	    "port-alarm": {
+		"match": ["*:yellow:tp", "*:yellow:sfp", "*:yellow:port" ],
+
+		"rules": [
+		]
+	    }
+	},
+	"led": {
+	    "nanopi-r2s:red:sys": {
+		"rules": [
+		    { "if": "locate",    "then": "@blink-1hz" },
+		    { "if": "panic",     "then": "@blink-5hz" },
+		    { "if": "fail-safe", "then": "@blink-5hz" },
+		    { "if": "startup",   "then": "@off" },
+		    { "if": "true",      "then": "@blink-1hz" }
+		]
+	    },
+
+	    "nanopi-r2s:green:lan": {
+		"rules": [
+		    { "if": "locate",  "then": "@blink-1hz" },
+		    { "if": "panic",   "then": "@blink-5hz" },
+		    { "if": "startup", "then": "@on" }
+		]
+	    },
+
+	    "nanopi-r2s:green:wan": {
+		"rules": [
+		    { "if": "locate", "then": "@blink-1hz" },
+		    { "if": "panic",  "then": "@blink-5hz" },
+		    { "if": "wan-up", "then": "@on" }
+		]
+	    }
+	}
+    },
+
+    "aliases": {
+	"on": {
+	    "brightness": true
+	},
+	"off": {
+	    "brightness": false
+	},
+	"blink-1hz": {
+	    "trigger": "timer",
+	    "delay_on": 500,
+	    "delay_off": 500
+	},
+	"blink-5hz": {
+	    "trigger": "timer",
+	    "delay_on": 100,
+	    "delay_off": 100
+	}
+    }
+}