diff --git a/Components/mt/MT_SYS.c b/Components/mt/MT_SYS.c
index 514f7bd..7984305 100644
--- a/Components/mt/MT_SYS.c
+++ b/Components/mt/MT_SYS.c
@@ -2141,6 +2141,21 @@ static void MT_SysSnifferParameters( uint8 *pBuf )
  *****************************************************************************/
 static void powerOffSoc(void)
 {
+#if defined(FIRMWARE_CC2530_DEFAULT) || defined(FIRMWARE_CC2530_CC2591_DEFAULT)
+  HAL_DISABLE_INTERRUPTS();
+  STIF = 0; //HAL_SLEEP_TIMER_CLEAR_INT;
+  if (ZNP_CFG1_UART == znpCfg1)
+  {
+    HalUARTSuspend();
+  }
+
+  /* Prep CC2530 power mode */
+  //HAL_SLEEP_PREP_POWER_MODE(3);
+  SLEEPCMD &= ~PMODE; /* clear mode bits */
+  SLEEPCMD |= 3;      /* set mode bits  to PM3 */
+  while (!(STLOAD & LDRDY));
+  SystemReset();
+#else
   HAL_DISABLE_INTERRUPTS();
 
   /* turn off the RF front end device */
@@ -2181,6 +2196,7 @@ static void powerOffSoc(void)
     PCON = halSleepPconValue;
     asm("NOP");
   }
+#endif
 }
 #endif
 
diff --git a/Components/mt/revision_info.h b/Components/mt/revision_info.h
new file mode 100644
index 0000000..c73110c
--- /dev/null
+++ b/Components/mt/revision_info.h
@@ -0,0 +1 @@
+#define CODE_REVISION_NUMBER 20181123
\ No newline at end of file
diff --git a/Components/stack/nwk/nwk_globals.c b/Components/stack/nwk/nwk_globals.c
index ba06b98..85c9cfe 100644
--- a/Components/stack/nwk/nwk_globals.c
+++ b/Components/stack/nwk/nwk_globals.c
@@ -70,10 +70,10 @@
  * CONSTANTS
  */
 // Maximums for the data buffer queue
-#define NWK_MAX_DATABUFS_WAITING    8     // Waiting to be sent to MAC
-#define NWK_MAX_DATABUFS_SCHEDULED  5     // Timed messages to be sent
-#define NWK_MAX_DATABUFS_CONFIRMED  5     // Held after MAC confirms
-#define NWK_MAX_DATABUFS_TOTAL      12    // Total number of buffers
+#define NWK_MAX_DATABUFS_WAITING    32     // Waiting to be sent to MAC
+#define NWK_MAX_DATABUFS_SCHEDULED  20     // Timed messages to be sent
+#define NWK_MAX_DATABUFS_CONFIRMED  20     // Held after MAC confirms
+#define NWK_MAX_DATABUFS_TOTAL      48     // Total number of buffers
 
 // 1-255 (0 -> 256) X RTG_TIMER_INTERVAL
 // A known shortcoming is that when a message is enqueued as "hold" for a
diff --git a/Projects/zstack/ZMain/TI2530ZNP/OnBoard.c b/Projects/zstack/ZMain/TI2530ZNP/OnBoard.c
index 310944f..2413f14 100644
--- a/Projects/zstack/ZMain/TI2530ZNP/OnBoard.c
+++ b/Projects/zstack/ZMain/TI2530ZNP/OnBoard.c
@@ -144,8 +144,17 @@ void InitBoard( uint8 level )
 
 #if defined CC2531ZNP
     znpCfg1 = ZNP_CFG1_UART;
+#elif defined FIRMWARE_CC2530_CC2591_DEFAULT
+    znpCfg1 = ZNP_CFG1_UART;
+    znpCfg0 = ZNP_CFG0_32K_OSC;
 #elif defined CC2530_MK
+    
+  #if defined FIRMWARE_CC2530_DEFAULT
+    znpCfg1 = ZNP_CFG1_UART;
+  #else
     znpCfg1 = ZNP_CFG1_SPI;
+  #endif
+ 
     znpCfg0 = ZNP_CFG0_32K_OSC;
 #else
     znpCfg1 = P2_0;
diff --git a/Projects/zstack/ZNP/CC253x/Source/preinclude.h b/Projects/zstack/ZNP/CC253x/Source/preinclude.h
new file mode 100644
index 0000000..9bbcb1e
--- /dev/null
+++ b/Projects/zstack/ZNP/CC253x/Source/preinclude.h
@@ -0,0 +1,60 @@
+// Shared accross all firmwares
+#define ASSERT_RESET
+#define FAKE_CRC_SHDW
+#define TC_LINKKEY_JOIN
+#define SECURE 1
+#define INTER_PAN 1
+#define INCLUDE_REVISION_INFORMATION
+
+#if defined FIRMWARE_CC2531_DEFAULT
+  #define CC2531ZNP
+  #define NWK_MAX_DEVICE_LIST 20
+  #define MAXMEMHEAP 3199
+  #define OPTIMIZE_LARGE_NETWORK
+
+#elif defined FIRMWARE_CC2531_MAX_DEVICES
+  #define CC2531ZNP
+  #define NWK_MAX_DEVICE_LIST 43
+  #define MAXMEMHEAP 3199
+  #define MAX_NEIGHBOR_ENTRIES 1
+
+#elif defined FIRMWARE_CC2530_DEFAULT
+  #define HAL_LCD FALSE
+  #define HAL_ADC FALSE
+  #define HAL_UART_DMA_RX_MAX 128
+  #define NWK_MAX_DEVICE_LIST 15
+  #define MAXMEMHEAP 3221
+  #define ENABLE_MT_SYS_RESET_SHUTDOWN
+  #define ZTOOL_P1
+  #define CC2530_MK
+  #define OPTIMIZE_LARGE_NETWORK  
+
+#elif defined FIRMWARE_CC2530_CC2591_DEFAULT
+  #define NWK_MAX_DEVICE_LIST 15
+  #define MAXMEMHEAP 3135
+  #define ENABLE_MT_SYS_RESET_SHUTDOWN
+  #define ZTOOL_P1
+  #define HAL_LCD FALSE
+  #define HAL_ADC FALSE
+  #define HAL_UART_DMA_RX_MAX 128
+  #define HAL_PA_LNA
+  #define OPTIMIZE_LARGE_NETWORK
+
+#endif
+
+#if defined OPTIMIZE_LARGE_NETWORK
+  #define CONCENTRATOR_ENABLE 1
+  #define CONCENTRATOR_DISCOVERY_TIME 120
+  #define MAX_RTG_SRC_ENTRIES 65
+  #define SRC_RTG_EXPIRY_TIME 2
+  #define CONCENTRATOR_ROUTE_CACHE 1
+  #define MTO_RREQ_LIMIT_TIME 5000
+  #define LINK_DOWN_TRIGGER 5
+  #define BCAST_DELIVERY_TIME 100
+  #define DEF_NWK_RADIUS 5
+  #define NWK_ROUTE_AGE_LIMIT 15
+  #define DEFAULT_ROUTE_REQUEST_RADIUS 15
+  #define ROUTE_DISCOVERY_TIME 10
+  #define NWK_LINK_STATUS_PERIOD 23
+  #define MAX_NEIGHBOR_ENTRIES 16
+#endif
\ No newline at end of file
diff --git a/Projects/zstack/ZNP/Source/znp.cfg b/Projects/zstack/ZNP/Source/znp.cfg
index 409fadb..823bf43 100644
--- a/Projects/zstack/ZNP/Source/znp.cfg
+++ b/Projects/zstack/ZNP/Source/znp.cfg
@@ -101,4 +101,6 @@
 -DMT_ZDO_EXTENSIONS
 
 /* MT_APP interface - useful when ZAP defines ZAP_ZNP_MT for MT_SYS_APP_MSG pass-through. */
--DMT_APP_FUNC
\ No newline at end of file
+-DMT_APP_FUNC
+
+--preinclude=preinclude.h
\ No newline at end of file
diff --git a/Projects/zstack/ZNP/Source/znp_app.c b/Projects/zstack/ZNP/Source/znp_app.c
index e461086..bde923f 100644
--- a/Projects/zstack/ZNP/Source/znp_app.c
+++ b/Projects/zstack/ZNP/Source/znp_app.c
@@ -390,12 +390,23 @@ static void npInit(void)
     halUARTCfg_t uartConfig;
 
     uartConfig.configured           = TRUE;
+
+#if defined(FIRMWARE_CC2530_DEFAULT) || defined(FIRMWARE_CC2530_CC2591_DEFAULT)
+    uartConfig.baudRate             = HAL_UART_BR_115200;
+#else
     uartConfig.baudRate             = ZNP_UART_BAUD;
-#ifdef ZNP_ALT
+#endif
+
+#if defined(FIRMWARE_CC2530_DEFAULT) || defined(FIRMWARE_CC2530_CC2591_DEFAULT)
     uartConfig.flowControl          = FALSE;
 #else
+  #ifdef ZNP_ALT
+    uartConfig.flowControl          = FALSE;
+  #else
     uartConfig.flowControl          = TRUE;
+  #endif
 #endif
+
     uartConfig.flowControlThreshold = HAL_UART_FLOW_THRESHOLD;
     uartConfig.rx.maxBufSize        = HAL_UART_RX_BUF_SIZE;
     uartConfig.tx.maxBufSize        = HAL_UART_TX_BUF_SIZE;
@@ -404,6 +415,15 @@ static void npInit(void)
     uartConfig.callBackFunc         = npUartCback;
     HalUARTOpen(HAL_UART_PORT, &uartConfig);
     MT_UartRegisterTaskID(znpTaskId);
+
+#if defined FIRMWARE_CC2530_CC2591_DEFAULT
+    //Add TX Setting
+    #ifdef HAL_PA_LNA
+      ZMacSetTransmitPower(TX_PWR_PLUS_19);
+    #else
+      ZMacSetTransmitPower(TX_PWR_PLUS_4);
+    #endif
+#endif
   }
   else
   {