diff --git a/scripts/network.gd b/scripts/network.gd
index 6abcee2..90bad02 100644
--- a/scripts/network.gd
+++ b/scripts/network.gd
@@ -7,7 +7,14 @@ const SERIAL_PROTO: = {'uart': spt25.SPT25 }
 
 
 class Serial extends SerialPort:
-    pass
+    func send_to(data: PackedByteArray):
+        write_raw(data)
+    func try_open(parsing_proc: Callable):
+        if not is_open():
+            open(port)
+            if is_open():
+                data_received.connect(parsing_proc)
+                start_monitoring(timeout)
 
 
 class Socket extends PacketPeerUDP:
@@ -71,11 +78,12 @@ func create_tcpsocket(nm) -> SocketTCP:
     return sock
 
 
-func create_serial(nm) -> SerialPort:
+func create_serial(nm) -> Serial:
     var port = repsettings.UnitProfiles[nm][1]
     var baud = repsettings.UnitProfiles[nm][2][0]
-    var sp: = SerialPort.new()
+    var sp: = Serial.new()
     sp.baudrate = baud
+    sp.timeout = 20000
     var rc = sp.open(port)
     if rc != Error.OK:
         log.message(log.ERROR, 'Невозможно открыть порт \"%s\" для \"%s\"' % [port, nm])
@@ -126,9 +134,7 @@ func _ready() -> void:
             units_serial[unit_key] = unit
             units[unit_key] = unit
             serials[unit_key] = serial
-            if serial.is_open():
-                serial.data_received.connect(unit.parse)
-                serial.start_monitoring(20000)
+
 
     tcp_sockets.append([create_tcpsocket('уарэп-5п28'), units_tcp[repsettings.get_unit_key('уарэп-5п28')]])
 
@@ -207,7 +213,7 @@ func _process(_delta: float) -> void:
         var unit = units_serial[key]
         var serial = serials[key]
         match unit.process(tick):
-            Error.OK: serial.write_raw(unit.tx_data)
+            Error.OK: serial.send_to(unit.tx_data)
             Error.FAILED: emit_signal('socket_error', 'ошибка: \"%s\"' % unit.name)
     for sock_unit in tcp_sockets:
         var sock = sock_unit[0]