diff --git a/slsDetectorSoftware/include/slsDetectorUsers.h b/slsDetectorSoftware/include/slsDetectorUsers.h
index c92323ac6..da3ec374d 100755
--- a/slsDetectorSoftware/include/slsDetectorUsers.h
+++ b/slsDetectorSoftware/include/slsDetectorUsers.h
@@ -927,7 +927,7 @@ public:
 	/**
      @short returns external communication mode std::string from index
      \param s index for communication mode
-     \returns  auto, trigger, ro_trigger, gating, triggered_gating, unknown when wrong mode
+     \returns  auto, trigger, ro_trigger, gating, triggered_gating, burst_trigger, unknown when wrong mode
 	 */
 
 	static int getTimingMode(std::string s){			\
@@ -936,6 +936,7 @@ public:
 		if (s== "ro_trigger") return 2;					\
 		if (s== "gating") return 3;						\
 		if (s== "triggered_gating") return 4;			\
+		if (s== "burst_trigger") return 5;				\
 		return -1;							};
 
 
diff --git a/slsDetectorSoftware/src/multiSlsDetector.cpp b/slsDetectorSoftware/src/multiSlsDetector.cpp
index 1acf99192..d6e6c1515 100755
--- a/slsDetectorSoftware/src/multiSlsDetector.cpp
+++ b/slsDetectorSoftware/src/multiSlsDetector.cpp
@@ -2811,7 +2811,17 @@ int multiSlsDetector::powerChip(int ival, int detPos) {
         return detectors[detPos]->powerChip(ival);
     }
 
-    // multi
+    // multi delayed call for safety
+    if (ival >= 0 && getNumberOfDetectors() > 3) {
+        std::vector<int> r;
+        r.reserve(detectors.size());
+        for (auto &d : detectors) {
+            r.push_back(d->powerChip(ival));
+            usleep(1000 * 1000);
+        }
+        return sls::minusOneIfDifferent(r);
+    }
+    // multi parallel 
     auto r = parallelCall(&slsDetector::powerChip, ival);
     return sls::minusOneIfDifferent(r);
 }