diff --git a/client_tcp.go b/client_tcp.go
index fa43f2f..b850de3 100644
--- a/client_tcp.go
+++ b/client_tcp.go
@@ -2,7 +2,7 @@ package nnet
 
 import (
 	"git.noahlan.cn/noahlan/nnet/connection"
-	"git.noahlan.cn/noahlan/ntools-go/core/nlog"
+	"git.noahlan.cn/noahlan/ntool/nlog"
 	"net"
 )
 
diff --git a/engine.go b/engine.go
index 4586778..3a1787a 100644
--- a/engine.go
+++ b/engine.go
@@ -7,8 +7,8 @@ import (
 	"git.noahlan.cn/noahlan/nnet/packet"
 	rt "git.noahlan.cn/noahlan/nnet/router"
 	"git.noahlan.cn/noahlan/nnet/scheduler"
-	"git.noahlan.cn/noahlan/nnet/serialize"
 	"git.noahlan.cn/noahlan/nnet/session"
+	"git.noahlan.cn/noahlan/ntool/ndef"
 	"git.noahlan.cn/noahlan/ntool/nlog"
 	"github.com/panjf2000/ants/v2"
 	"math"
@@ -24,7 +24,7 @@ type Engine struct {
 	dieChan           chan struct{}        // 应用程序退出信号
 	pipeline          connection.Pipeline  // 消息管道
 	packerBuilder     packet.PackerBuilder // 封包、拆包器
-	serializer        serialize.Serializer // 消息 序列化/反序列化
+	serializer        ndef.Serializer      // 消息 序列化/反序列化
 	goPool            *ants.Pool           // goroutine池
 	connManager       *connection.Manager  // 连接管理器
 	lifetime          *lifetime.Mgr        // 生命周期
diff --git a/options.go b/options.go
index b9ddca1..e8ae6d6 100644
--- a/options.go
+++ b/options.go
@@ -5,8 +5,8 @@ import (
 	"git.noahlan.cn/noahlan/nnet/lifetime"
 	"git.noahlan.cn/noahlan/nnet/packet"
 	rt "git.noahlan.cn/noahlan/nnet/router"
-	"git.noahlan.cn/noahlan/nnet/serialize"
-	"git.noahlan.cn/noahlan/ntools-go/core/pool"
+	"git.noahlan.cn/noahlan/ntool/ndef"
+	"git.noahlan.cn/noahlan/ntool/npool"
 	"github.com/panjf2000/ants/v2"
 	"time"
 )
@@ -73,7 +73,7 @@ func WithPackerBuilder(fn packet.PackerBuilder) RunOption {
 }
 
 // WithSerializer 设置消息的 序列化/反序列化 方式
-func WithSerializer(s serialize.Serializer) RunOption {
+func WithSerializer(s ndef.Serializer) RunOption {
 	return func(ngin *Engine) {
 		ngin.serializer = s
 	}
@@ -87,7 +87,7 @@ func WithPool(pl *ants.Pool) RunOption {
 }
 
 // WithPoolCfg 设置工作池配置
-func WithPoolCfg(cfg pool.Config) RunOption {
+func WithPoolCfg(cfg npool.Config) RunOption {
 	return func(ngin *Engine) {
 		ngin.goPool, _ = ants.NewPool(cfg.PoolSize, ants.WithOptions(cfg.Options()))
 	}
diff --git a/server_rtu.go b/server_rtu.go
new file mode 100644
index 0000000..34ef30d
--- /dev/null
+++ b/server_rtu.go
@@ -0,0 +1,47 @@
+package nnet
+
+import (
+	"git.noahlan.cn/noahlan/nnet/connection"
+	"git.noahlan.cn/noahlan/ntool/nlog"
+	"github.com/goburrow/serial"
+	"sync"
+)
+
+func (ngin *Engine) ServerRTU(conf serial.Config) error {
+	err := ngin.setup()
+	if err != nil {
+		nlog.Errorf("%s failed to setup server, err:%v", ngin.LogPrefix(), err)
+		return err
+	}
+
+	port, err := serial.Open(&conf)
+	if err != nil {
+		nlog.Errorf("%s failed to open %s, err:%v", ngin.LogPrefix(), conf.Address, err)
+		return err
+	}
+
+	nlog.Infof("%s now open %s at rate:%d ...", ngin.LogPrefix(), conf.Address, conf.BaudRate)
+	defer func() {
+		_ = port.Close()
+		ngin.Stop()
+	}()
+
+	var wg sync.WaitGroup
+	wg.Add(1)
+
+	ngin.handle(connection.NewRTUConn(port, &conf))
+
+	go func() {
+		for {
+			select {
+			case <-ngin.dieChan:
+				wg.Done()
+			default:
+			}
+		}
+	}()
+
+	wg.Wait()
+
+	return nil
+}
diff --git a/server_tcp.go b/server_tcp.go
index a889f30..073e5dd 100644
--- a/server_tcp.go
+++ b/server_tcp.go
@@ -3,7 +3,7 @@ package nnet
 import (
 	"errors"
 	"git.noahlan.cn/noahlan/nnet/config"
-	"git.noahlan.cn/noahlan/ntools-go/core/nlog"
+	"git.noahlan.cn/noahlan/ntool/nlog"
 	"net"
 )
 
diff --git a/server_ws.go b/server_ws.go
index 584721b..f7e12fc 100644
--- a/server_ws.go
+++ b/server_ws.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"git.noahlan.cn/noahlan/nnet/config"
 	"git.noahlan.cn/noahlan/nnet/connection"
-	"git.noahlan.cn/noahlan/ntools-go/core/nlog"
+	"git.noahlan.cn/noahlan/ntool/nlog"
 	"github.com/gorilla/websocket"
 	"net/http"
 	"os"
diff --git a/test/test_nnet_test.go b/test/test_nnet_test.go
index 001b1a3..543a131 100644
--- a/test/test_nnet_test.go
+++ b/test/test_nnet_test.go
@@ -5,7 +5,7 @@ import (
 	"git.noahlan.cn/noahlan/nnet/packet"
 	"git.noahlan.cn/noahlan/nnet/protocol/nnet"
 	rt "git.noahlan.cn/noahlan/nnet/router"
-	"git.noahlan.cn/noahlan/ntools-go/core/nlog"
+	"git.noahlan.cn/noahlan/ntool/nlog"
 	"sync"
 	"testing"
 )