diff --git a/ledpattern/Makefile b/ledpattern/Makefile
index 705a398..ad3456d 100644
--- a/ledpattern/Makefile
+++ b/ledpattern/Makefile
@@ -1,7 +1,7 @@
 default:
 
-PREFIX=/
-BINDIR=$(DESTDIR)$(PREFIX)/bin
+ETCDIR=$(DESTDIR)/etc
+BINDIR=$(DESTDIR)/bin
 PYTHON?=python
 
 all:
@@ -9,6 +9,9 @@
 install:
 	mkdir -p $(BINDIR)
 	cp ledpattern.py $(BINDIR)/ledpattern
+	cp ledtapcode.sh $(BINDIR)/ledtapcode
+	cp ledpatterns $(ETCDIR)/ledpatterns
+	chmod +x $(BINDIR)/ledtapcode
 
 install-libs:
 	@echo "No libs to install."
diff --git a/ledpattern/ledpatterns b/ledpattern/ledpatterns
new file mode 100644
index 0000000..2e0ab63
--- /dev/null
+++ b/ledpattern/ledpatterns
@@ -0,0 +1,12 @@
+HALTED,P,R
+NO_LASER_CHANNEL,P,P
+SET_LASER_FAILED,P,R,R
+LOSLOF_ALARM,P,R,B
+OTHER_ALARM,P,R,P
+GPON_INITIAL,P,B,R
+GPON_STANDBY,P,B,P
+GPON_SERIAL,P,P,R
+GPON_RANGING,P,P,B
+WAIT_ACS,P,B,B
+ALL_OK,P,B,B,B
+UNKNOWN_ERROR,P,R,R,R
diff --git a/ledpattern/ledtapcode.sh b/ledpattern/ledtapcode.sh
new file mode 100755
index 0000000..6841f2f
--- /dev/null
+++ b/ledpattern/ledtapcode.sh
@@ -0,0 +1,107 @@
+#!/bin/sh
+
+. /etc/utils.sh
+
+LEDPATTERN="ledpattern /etc/ledpatterns"
+SYSFS_GPON_PATH="/sys/devices/platform/gpon"
+MONITOR_PATH="/tmp/gpio/ledcontrol"
+LASER_STATUS_FILE="/tmp/laser_i2c_status"
+ALARM_GPON_FILE="$SYSFS_GPON_PATH/info/alarmGpon"
+GPON_INFO_FILE="$SYSFS_GPON_PATH/info/infoGpon"
+HALTED_FILE="$MONITOR_PATH/halted"
+HW_FAILURE="$MONITOR_PATH/hardware_failure"
+LASER_CHANNEL_FILE="$SYSFS_GPON_PATH/misc/laserChannel"
+ACS_FILE="$MONITOR_PATH/acsconnected"
+
+PlayPatternAndExit()
+{
+  state="$1"
+  # ledpattern takes care of all the LED management and state selection.
+  result="$($LEDPATTERN $state)"
+  if [ "$?" -ne 0 ]; then
+    echo "Failed to display pattern $state: $result"
+    exit 1
+  fi
+  exit 0
+}
+
+if [ ! -f "$ALARM_GPON_FILE" ]; then
+  echo "$ALARM_GPON_FILE does not exist"
+  PlayPatternAndExit UNKNOWN_ERROR
+fi
+
+if [ ! -f "$GPON_INFO_FILE" ]; then
+  echo "$GPON_INFO_FILE does not exist"
+  PlayPatternAndExit UNKNOWN_ERROR
+fi
+
+if [ ! -f "$LASER_CHANNEL_FILE" ]; then
+  echo "$LASER_CHANNEL_FILE does not exist"
+  PlayPatternAndExit UNKNOWN_ERROR
+fi
+
+# It is a valid state that there may not be a LASER_STATUS_FILE yet.
+if [ -f "$LASER_STATUS_FILE" ]; then
+  laser_status=$(cat "$LASER_STATUS_FILE")
+  if [ "$laser_status" -ne 0 ]; then
+    echo "Playing SET_LASER_FAILED pattern"
+    PlayPatternAndExit SET_LASER_FAILED
+  fi
+fi
+
+if [ -f "$HW_FAILURE" ]; then
+  echo "Playing HALTED pattern on HW_FAILURE"
+  PlayPatternAndExit HALTED
+fi
+
+if [ -f "$HALTED_FILE" ]; then
+  echo "Playing HALTED pattern on HALTED_FILE"
+  PlayPatternAndExit HALTED
+fi
+
+# Chop the table headers off the output using tail, otherwise grep gets
+# confused later.
+alarm_info=$(cat "$ALARM_GPON_FILE" | tail -n+7)
+los_output=$(echo "$alarm_info" | grep "LOS" | grep "ON")
+lof_output=$(echo "$alarm_info" | grep "LOF" | grep "ON")
+if [ -n "$los_output" ] || [ -n "$lof_output" ]; then
+  echo "Playing LOSLOF_ALARM pattern"
+  PlayPatternAndExit LOSLOF_ALARM
+fi
+other_alarm=$(echo "$alarm_info" | grep "ON")
+if [ -n "$other_alarm" ]; then
+  echo "Playing OTHER_ALARM pattern"
+  PlayPatternAndExit OTHER_ALARM
+fi
+
+gpon_info=$(cat "$GPON_INFO_FILE" | grep "ONU STATE")
+if contains "$gpon_info" "INITIAL"; then
+  echo "Playing GPON_INITIAL pattern"
+  PlayPatternAndExit GPON_INITIAL
+elif contains "$gpon_info" "STANDBY"; then
+  echo "Playing GPON_STANDBY pattern"
+  PlayPatternAndExit GPON_STANDBY
+elif contains "$gpon_info" "SERIAL"; then
+  echo "Playing GPON_SERIAL pattern"
+  PlayPatternAndExit GPON_SERIAL
+elif contains "$gpon_info" "RANGING"; then
+  echo "Playing GPON_RANGING pattern"
+  PlayPatternAndExit GPON_RANGING
+fi
+
+laser_channel=$(cat "$LASER_CHANNEL_FILE")
+if [ ! -f "$ACS_FILE" ] && [ "$laser_channel" -eq "-1" ]; then
+  echo "Playing NO_LASER_CHANNEL pattern"
+  PlayPatternAndExit NO_LASER_CHANNEL
+elif [ ! -f "$ACS_FILE" ] && [ $laser_channel -ne "-1" ]; then
+  echo "Playing WAIT_ACS pattern"
+  PlayPatternAndExit WAIT_ACS
+elif [ -f "$ACS_FILE" ] && [ $laser_channel -ne "-1" ]; then
+  echo "Playing ALL_OK pattern"
+  PlayPatternAndExit ALL_OK
+else
+  # If we get all the way here and nothing triggered on the way then this really
+  # is an unknown error...
+  echo "Nothing triggered? Playing UNKNOWN_ERROR pattern..."
+  PlayPatternAndExit UNKNOWN_ERROR
+fi