diff --git a/linux/payload/FreshSupvHandler.cpp b/linux/payload/FreshSupvHandler.cpp
index 995f3441..31f42924 100644
--- a/linux/payload/FreshSupvHandler.cpp
+++ b/linux/payload/FreshSupvHandler.cpp
@@ -7,7 +7,16 @@ using namespace returnvalue;
 
 std::atomic_bool supv::SUPV_ON = false;
 
-FreshSupvHandler::FreshSupvHandler(DhbConfig cfg) : FreshDeviceHandlerBase(cfg), hkSet(this) {}
+FreshSupvHandler::FreshSupvHandler(DhbConfig cfg, CookieIF *comCookie, Gpio uartIsolatorSwitch,
+                                   PowerSwitchIF &switchIF, power::Switch_t powerSwitch,
+                                   PlocSupvUartManager &supvHelper)
+    : FreshDeviceHandlerBase(cfg),
+      hkSet(this),
+      bootStatusReport(this),
+      latchupStatusReport(this),
+      countersReport(this),
+      adcReport(this),
+      uartManager(supvHelper) {}
 
 void FreshSupvHandler::performDeviceOperation(uint8_t opCode) {
   if (!transitionActive and mode == MODE_OFF) {
@@ -17,7 +26,9 @@ void FreshSupvHandler::performDeviceOperation(uint8_t opCode) {
   if (opCode == OpCode::DEFAULT_OPERATION) {
     if (transitionActive) {
       // TODO: Perform transition handling: OFF to ON and ON to OFF.
-
+      // For OFF to ON, command power switch first, then to isolato switch handling, and lastly
+      // ensure succesfull communication
+      // For ON to OFF ????
     } else {
       if (mode == MODE_NORMAL) {
         // Normal mode handling. Request normal datasets and add them to command map.
@@ -117,6 +128,11 @@ ReturnValue_t FreshSupvHandler::initializeLocalDataPool(localpool::DataPool &loc
   return returnvalue::OK;
 }
 
+ReturnValue_t FreshSupvHandler::setHealth(HealthState health) {
+  // TODO: Go to off is the device is commanded faulty.
+  return returnvalue::OK;
+}
+
 ReturnValue_t FreshSupvHandler::executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
                                               const uint8_t *data, size_t size) {
   // TODO: Handle all commands here. Need to add them to some command map. Send command immediately
diff --git a/linux/payload/FreshSupvHandler.h b/linux/payload/FreshSupvHandler.h
index 044a0418..fdb38514 100644
--- a/linux/payload/FreshSupvHandler.h
+++ b/linux/payload/FreshSupvHandler.h
@@ -1,14 +1,21 @@
 #ifndef LINUX_PAYLOAD_FRESHSUPVHANDLER_H_
 #define LINUX_PAYLOAD_FRESHSUPVHANDLER_H_
 
+#include <fsfw/power/PowerSwitchIF.h>
+
+#include "PlocSupvUartMan.h"
 #include "fsfw/devicehandlers/FreshDeviceHandlerBase.h"
+#include "fsfw/power/definitions.h"
+#include "fsfw_hal/linux/gpio/Gpio.h"
 #include "plocSupvDefs.h"
 
 class FreshSupvHandler : public FreshDeviceHandlerBase {
  public:
   enum OpCode { DEFAULT_OPERATION = 0, HANDLE_ACTIVE_CMDS = 1 };
 
-  FreshSupvHandler(DhbConfig cfg);
+  FreshSupvHandler(DhbConfig cfg, CookieIF* comCookie, Gpio uartIsolatorSwitch,
+                   PowerSwitchIF& switchIF, power::Switch_t powerSwitch,
+                   PlocSupvUartManager& supvHelper);
   /**
    * Periodic helper executed function, implemented by child class.
    */
@@ -23,6 +30,8 @@ class FreshSupvHandler : public FreshDeviceHandlerBase {
   ReturnValue_t handleCommandMessage(CommandMessage* message) override;
 
  private:
+  ReturnValue_t setHealth(HealthState health) override;
+
   // HK manager abstract functions.
   LocalPoolDataSetBase* getDataSetHandle(sid_t sid) override;
   ReturnValue_t initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
@@ -36,6 +45,8 @@ class FreshSupvHandler : public FreshDeviceHandlerBase {
                               const uint8_t* data, size_t size) override;
 
  private:
+  PlocSupvUartManager uartManager;
+
   supv::HkSet hkSet;
   supv::BootStatusReport bootStatusReport;
   supv::LatchupStatusReport latchupStatusReport;