diff --git a/bsp_q7s/core/InitMission.cpp b/bsp_q7s/core/InitMission.cpp
index a5b2b548..96a43a81 100644
--- a/bsp_q7s/core/InitMission.cpp
+++ b/bsp_q7s/core/InitMission.cpp
@@ -206,7 +206,7 @@ void initmission::initTasks() {
 #endif /* OBSW_ADD_STAR_TRACKER == 1 */
 #endif
 
-  //acsCtrl->startTask();
+  // acsCtrl->startTask();
 
   sif::info << "Tasks started.." << std::endl;
 }
diff --git a/fsfw b/fsfw
index 933da2f6..9b770602 160000
--- a/fsfw
+++ b/fsfw
@@ -1 +1 @@
-Subproject commit 933da2f655717b66c1056e764c47a2eee473a137
+Subproject commit 9b77060295c9c32ebfc2e7cf6517eb2e66216191
diff --git a/mission/devices/ACUHandler.cpp b/mission/devices/ACUHandler.cpp
index 239a0c7a..60e26302 100644
--- a/mission/devices/ACUHandler.cpp
+++ b/mission/devices/ACUHandler.cpp
@@ -273,7 +273,8 @@ ReturnValue_t ACUHandler::initializeLocalDataPool(localpool::DataPool &localData
   return HasReturnvaluesIF::RETURN_OK;
 }
 
-ReturnValue_t ACUHandler::deviceSpecificCommand(DeviceCommandId_t cmd) {
+ReturnValue_t ACUHandler::childCommandHook(DeviceCommandId_t cmd, const uint8_t *commandData,
+                                           size_t commandDataLen) {
   switch (cmd) {
     case PRINT_CHANNEL_STATS: {
       printChannelStats();
diff --git a/mission/devices/ACUHandler.h b/mission/devices/ACUHandler.h
index 0d93c5fe..f3af5eae 100644
--- a/mission/devices/ACUHandler.h
+++ b/mission/devices/ACUHandler.h
@@ -28,7 +28,8 @@ class ACUHandler : public GomspaceDeviceHandler {
 
   virtual void fillCommandAndReplyMap() override;
 
-  virtual ReturnValue_t deviceSpecificCommand(DeviceCommandId_t cmd) override;
+  virtual ReturnValue_t childCommandHook(DeviceCommandId_t cmd, const uint8_t* commandData,
+                                         size_t commandDataLen) override;
 
  private:
   static const DeviceCommandId_t PRINT_CHANNEL_STATS = 51;
diff --git a/mission/devices/GPSHyperionHandler.cpp b/mission/devices/GPSHyperionHandler.cpp
index 37b11bcb..9bea91b0 100644
--- a/mission/devices/GPSHyperionHandler.cpp
+++ b/mission/devices/GPSHyperionHandler.cpp
@@ -30,9 +30,7 @@ void GPSHyperionHandler::performControlOperation() {
 #endif
 }
 
-LocalPoolDataSetBase *GPSHyperionHandler::getDataSetHandle(sid_t sid) {
-  return &gpsSet;
-}
+LocalPoolDataSetBase *GPSHyperionHandler::getDataSetHandle(sid_t sid) { return &gpsSet; }
 
 ReturnValue_t GPSHyperionHandler::checkModeCommand(Mode_t mode, Submode_t submode,
                                                    uint32_t *msToReachTheMode) {
diff --git a/mission/devices/GomspaceDeviceHandler.cpp b/mission/devices/GomspaceDeviceHandler.cpp
index eea1368a..c2abd330 100644
--- a/mission/devices/GomspaceDeviceHandler.cpp
+++ b/mission/devices/GomspaceDeviceHandler.cpp
@@ -36,7 +36,7 @@ ReturnValue_t GomspaceDeviceHandler::buildTransitionDeviceCommand(DeviceCommandI
 ReturnValue_t GomspaceDeviceHandler::buildCommandFromCommand(DeviceCommandId_t deviceCommand,
                                                              const uint8_t* commandData,
                                                              size_t commandDataLen) {
-  ReturnValue_t result;
+  ReturnValue_t result = childCommandHook(deviceCommand, commandData, commandDataLen);
   switch (deviceCommand) {
     case (GOMSPACE::PING): {
       result = generatePingCommand(commandData, commandDataLen);
@@ -82,7 +82,7 @@ ReturnValue_t GomspaceDeviceHandler::buildCommandFromCommand(DeviceCommandId_t d
       break;
     }
     default:
-      return deviceSpecificCommand(deviceCommand);
+      return DeviceHandlerIF::COMMAND_NOT_IMPLEMENTED;
   }
   return HasReturnvaluesIF::RETURN_OK;
 }
@@ -195,6 +195,10 @@ ReturnValue_t GomspaceDeviceHandler::generateSetParamCommand(const uint8_t* comm
                << std::endl;
     return result;
   }
+  result = setParamCallback(setParamMessageUnpacker);
+  if (result != HasReturnvaluesIF::RETURN_OK) {
+    return result;
+  }
   /* Get and check address */
   uint16_t address = setParamMessageUnpacker.getAddress();
   if (address > maxConfigTableAddress) {
@@ -335,6 +339,16 @@ void GomspaceDeviceHandler::generateRebootCommand() {
   rawPacketLen = cspPacketLen;
 }
 
+ReturnValue_t GomspaceDeviceHandler::childCommandHook(DeviceCommandId_t cmd,
+                                                      const uint8_t* commandData,
+                                                      size_t commandDataLen) {
+  return DeviceHandlerIF::COMMAND_NOT_IMPLEMENTED;
+}
+
+ReturnValue_t GomspaceDeviceHandler::setParamCallback(SetParamMessageUnpacker& unpacker) {
+  return HasReturnvaluesIF::RETURN_OK;
+}
+
 ReturnValue_t GomspaceDeviceHandler::generateResetWatchdogCmd() {
   WatchdogResetCommand watchdogResetCommand;
   size_t cspPacketLen = 0;
@@ -386,10 +400,6 @@ LocalPoolDataSetBase* GomspaceDeviceHandler::getDataSetHandle(sid_t sid) {
   }
 }
 
-ReturnValue_t GomspaceDeviceHandler::deviceSpecificCommand(DeviceCommandId_t cmd) {
-  return DeviceHandlerIF::COMMAND_NOT_IMPLEMENTED;
-}
-
 void GomspaceDeviceHandler::setModeNormal() { mode = MODE_NORMAL; }
 
 ReturnValue_t GomspaceDeviceHandler::printStatus(DeviceCommandId_t cmd) {
diff --git a/mission/devices/GomspaceDeviceHandler.h b/mission/devices/GomspaceDeviceHandler.h
index c9c08609..22b97ef7 100644
--- a/mission/devices/GomspaceDeviceHandler.h
+++ b/mission/devices/GomspaceDeviceHandler.h
@@ -1,6 +1,8 @@
 #ifndef MISSION_DEVICES_GOMSPACEDEVICEHANDLER_H_
 #define MISSION_DEVICES_GOMSPACEDEVICEHANDLER_H_
 
+#include <mission/devices/devicedefinitions/GomSpacePackets.h>
+
 #include "fsfw/devicehandlers/DeviceHandlerBase.h"
 #include "mission/devices/devicedefinitions/GomspaceDefinitions.h"
 #include "returnvalues/classIds.h"
@@ -101,9 +103,12 @@ class GomspaceDeviceHandler : public DeviceHandlerBase {
   virtual LocalPoolDataSetBase *getDataSetHandle(sid_t sid) override;
 
   /**
-   * @brief   Can be used by gomspace devices to implement device specific commands.
+   * @brief   Can be overriden by child classes to implement device specific commands.
+   * @return Return DeviceHandlerIF::COMMAND_NOT_IMPLEMENTED to let this handler handle
+   *   the command or RETURN_OK if the child handles the command
    */
-  virtual ReturnValue_t deviceSpecificCommand(DeviceCommandId_t cmd);
+  virtual ReturnValue_t childCommandHook(DeviceCommandId_t cmd, const uint8_t *commandData,
+                                         size_t commandDataLen);
 
  private:
   /**
@@ -112,6 +117,8 @@ class GomspaceDeviceHandler : public DeviceHandlerBase {
    */
   ReturnValue_t generateSetParamCommand(const uint8_t *commandData, size_t commandDataLen);
 
+  virtual ReturnValue_t setParamCallback(SetParamMessageUnpacker &unpacker);
+
   /**
    * @brief	Function to generate the command to get a parameter from a
    * 			gomspace device. Command will be sent to the ComIF over the
diff --git a/mission/devices/PDU1Handler.cpp b/mission/devices/PDU1Handler.cpp
index a1486588..e7e91fbf 100644
--- a/mission/devices/PDU1Handler.cpp
+++ b/mission/devices/PDU1Handler.cpp
@@ -1,6 +1,7 @@
 #include "PDU1Handler.h"
 
 #include <fsfw/datapool/PoolReadGuard.h>
+#include <mission/devices/devicedefinitions/GomSpacePackets.h>
 
 #include "OBSWConfig.h"
 
@@ -67,6 +68,55 @@ void PDU1Handler::letChildHandleHkReply(DeviceCommandId_t id, const uint8_t *pac
 #endif
 }
 
+void PDU1Handler::assignChannelHookFunction(ChannelSwitchHook hook) {
+  this->channelSwitchHook = hook;
+}
+
+ReturnValue_t PDU1Handler::setParamCallback(SetParamMessageUnpacker &unpacker) {
+  using namespace PDU1;
+  if (channelSwitchHook != nullptr and unpacker.getParameterSize() == 1) {
+    switch (unpacker.getAddress()) {
+      case (CONFIG_ADDRESS_OUT_EN_TCS_BOARD_3V3): {
+        channelSwitchHook(0, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_SYRLINKS): {
+        channelSwitchHook(1, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_STAR_TRACKER): {
+        channelSwitchHook(2, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_MGT): {
+        channelSwitchHook(3, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_SUS_NOMINAL): {
+        channelSwitchHook(4, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_SOLAR_CELL_EXP): {
+        channelSwitchHook(5, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_PLOC): {
+        channelSwitchHook(6, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_ACS_BOARD_SIDE_A): {
+        channelSwitchHook(7, unpacker.getParameter()[0]);
+        break;
+      }
+      case (CONFIG_ADDRESS_OUT_EN_CHANNEL8): {
+        channelSwitchHook(8, unpacker.getParameter()[0]);
+        break;
+      }
+    }
+  }
+  return HasReturnvaluesIF::RETURN_OK;
+}
+
 void PDU1Handler::parseHkTableReply(const uint8_t *packet) {
   uint16_t dataOffset = 0;
   PoolReadGuard pg(&pdu1HkTableDataset);
diff --git a/mission/devices/PDU1Handler.h b/mission/devices/PDU1Handler.h
index 0715b078..911e65be 100644
--- a/mission/devices/PDU1Handler.h
+++ b/mission/devices/PDU1Handler.h
@@ -4,6 +4,8 @@
 #include "GomspaceDeviceHandler.h"
 #include "devicedefinitions/GomspaceDefinitions.h"
 
+using ChannelSwitchHook = void (*)(uint8_t channel, bool on);
+
 /**
  * @brief	This is the device handler for the PDU1.
  *
@@ -27,6 +29,8 @@ class PDU1Handler : public GomspaceDeviceHandler {
   virtual ReturnValue_t initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
                                                 LocalDataPoolManager& poolManager) override;
 
+  void assignChannelHookFunction(ChannelSwitchHook hook);
+
  protected:
   /**
    * @brief   In MODE_NORMAL, a command will be built periodically by this function.
@@ -35,9 +39,12 @@ class PDU1Handler : public GomspaceDeviceHandler {
   virtual void letChildHandleHkReply(DeviceCommandId_t id, const uint8_t* packet) override;
   ReturnValue_t printStatus(DeviceCommandId_t cmd) override;
 
+  ReturnValue_t setParamCallback(SetParamMessageUnpacker& unpacker) override;
+
  private:
   /** Dataset for the housekeeping table of the PDU1 */
   PDU1::PDU1HkTableDataset pdu1HkTableDataset;
+  ChannelSwitchHook channelSwitchHook = nullptr;
 
   void printHkTable();
   void parseHkTableReply(const uint8_t* packet);