diff --git a/daemon.cpp b/daemon.cpp
index 34ed988..c92ef94 100644
--- a/daemon.cpp
+++ b/daemon.cpp
@@ -61,7 +61,7 @@ int main(int argc, char* argv[]) {
 	mySwitch.setPulseLength(300);
 	usleep(50000);
 	mySwitch.enableTransmit(0);
-	nPlugs=1024;
+	nPlugs=1280;
 	int nState[nPlugs];
 	nTimeout=0;
 	memset(nState, 0, sizeof(nState));
@@ -138,11 +138,11 @@ int main(int argc, char* argv[]) {
 					/**
 					* handle messages
 					*/
-					int nAddr = getAddr(nGroup, nSwitchNumber);
+					int nAddr = getAddrElro(nGroup, nSwitchNumber);
 					printf("nAddr: %i\n", nAddr);
 					printf("nPlugs: %i\n", nPlugs);
 					char msg[13];
-					if (nAddr > 1023 || nAddr < 1) {
+					if (nAddr > 1023 || nAddr < 0) {
 						printf("Switch out of range: %s:%d\n", nGroup, nSwitchNumber);
 						n = write(newsockfd,"2",1);
 					}
@@ -193,11 +193,11 @@ int main(int argc, char* argv[]) {
 					printf("nGroup: %s\n", nGroup);
 					printf("nSwitchNumber: %i\n", nSwitchNumber);
 					printf("nAction: %i\n", nAction);
-					int nAddr = getAddr(nGroup, nSwitchNumber);
+					int nAddr = getAddrInt(nGroup, nSwitchNumber);
 					printf("nAddr: %i\n", nAddr);
 					printf("nPlugs: %i\n", nPlugs);
 					char msg[13];
-					if (nAddr > 16 || nAddr < 1) {
+					if (nAddr > 1279 || nAddr < 1024) {
 						printf("Switch out of range: %s:%d\n", nGroup, nSwitchNumber);
 						n = write(newsockfd,"2",1);
 					}
@@ -318,9 +318,9 @@ void error(const char *msg) {
 }
 
 /**
- * calculate the array address of the power state
+ * calculate the array address of the power state for elro
  */
-int getAddr(const char* nGroup, int nSwitchNumber) {
+int getAddrElro(const char* nGroup, int nSwitchNumber) {
 	int tempgroup = atoi(nGroup);
 	int group = 0;
 	for (int i = 0; i < 5; i++) {
@@ -335,6 +335,13 @@ int getAddr(const char* nGroup, int nSwitchNumber) {
 	return result;
 }
 
+/**
+ * calculate the array address of the power state for intertechno
+ */
+int getAddrInt(const char* nGroup, int nSwitchNumber) {
+	return ((atoi(nGroup) - 1) * 16) + (nSwitchNumber - 1) + 1024;
+}
+
 PI_THREAD(switchOn) {
 	printf("switchOnThread: %d\n", nTimeout);
 	char tGroup[6];
diff --git a/daemon.h b/daemon.h
index bcb8b12..30324dd 100644
--- a/daemon.h
+++ b/daemon.h
@@ -9,7 +9,8 @@ int nTimeout;
 int PORT = 11337;
 
 void error(const char *msg);
-int getAddr(const char* nGroup, int nSwitchNumber);
+int getAddrElro(const char* nGroup, int nSwitchNumber);
+int getAddrInt(const char* nGroup, int nSwitchNumber);
 
 PI_THREAD(switchOn);
 PI_THREAD(switchOff);