private ushort RetrieveSNetId(int timeoutSeconds)
        {
            try {
                Log.Log("Попытка получить SNetID");
                var bytes = Encoding.ASCII.GetBytes("ATS05?\x0D");
                _port.WriteBytes(bytes, 0, bytes.Length);

                var inBytes = _port.ReadBytes(8, timeoutSeconds /*ReadTimeoutSafe*/);

                Log.Log("inBytes = " + inBytes.ToText());
                Log.Log("inBytes[2] = " + inBytes[2] + "  inBytes[2].XtoV = " + inBytes[2].XtoV());
                Log.Log("inBytes[3] = " + inBytes[3] + "  inBytes[3].XtoV = " + inBytes[3].XtoV());
                Log.Log("inBytes[4] = " + inBytes[4] + "  inBytes[4].XtoV = " + inBytes[4].XtoV());
                Log.Log("inBytes[5] = " + inBytes[5] + "  inBytes[5].XtoV = " + inBytes[5].XtoV());

                var result = (ushort)(inBytes[5].XtoV() + inBytes[4].XtoV() * 0x10 + inBytes[3].XtoV() * 0x100 +
                                      inBytes[2].XtoV() * 0x1000);
                Log.Log("SNetId = " + result);
                return(result);
            }
            catch (Exception ex) {
                Log.Log("Не удалось получить SNetId");
                throw new Exception("Не удалось получить SNetId", ex);
            }
        }