Smart Gateway L Serial Specification

Product Name: L-Serial Smart Gateway

Model Name: DSGW-040

Model list



Bluetooth 5.2











Wi-Fi 2.4G



LTE Cat1


Li battery







1. Introduction


1.1 Purpose& Description

It is a smart Gateway with DC power supply. It can be used in various scenarios flexibly. It can control BLE

device remotely, receives the data sent by the BLE devices and sends it to servers. The Wi-Fi data rate can

be up to 580Mbps and BLE data rate can be up to 2Mbps. It can also supports the 5V adapter power supply,

It reserves the ZigBee3.0 function ,Z-WAVE, Sub-G,4G LTE function.

1.2 Product Feature Summary

  • Support 5V adapter power supply

  • Support IEEE802.11ac, IEEE802.11n, IEEE802.11g, IEEE 802.11b Protocol

  • Support Network Communication of 4G Module (LTE-TDD/LTE-FDD)

  • RAM 64MB (can be upgrade to 128M) Free Space: 16MB (if RAM128M, Free Space is 80M) (Development

  • Space for user)

  • Flash 16MB Free Space: 8MB (Development Space for user)

  • Support Bluetooth 5.2

  • Support ZigBee 3.0

  • Support Z-wave

  • Support Sub-G, 915MHZ,868MHZ,433MHZ,315MHZ

  • Supporting waterproof and dustproof

  • One WAN/LAN variable network port

  • Backup Li battery

1.3 Hardware block diagram

2. Mechanical Requirement


2.1 Drawings

2.2 Interface

2.3 Item list












Power Adapter

Network Cable


3. Specifications


3.1 Technical Specification



Power Supply

Reset button

Network Interface

Indicator LEDs

Operating Temperature


Wi-Fi Performance

Support DC Input , input Voltage range is 4.5V to 5V. Power seat aperture is 3.5mm. The needle diameter is 1.35 mm and is positive. Power adapter:100-240V, 50/60HZ, Output is 5V/2A


1).Power LED normally on when powered on 2).Zigbee/BLE/Z-WAVE LED is flash  when the signal come  3).Wi-Fi LED normally on after connecting to Wi-Fi for 1-2 sec



  • IEEE wireless LAN standard:

IEEE802.11n; IEEE802.11g; IEEE 802.11b

  • Data Rate:

IEEE 802.11b Standard Mode:1,2,5.5,11Mbps

IEEE 802.11g Standard Mode:6,9,12,18,24,36,48,54 Mbps

IEEE 802.11n: MCS0~MCS7 @ HT20/ 2.4GHz band

                        MCS0~MCS7 @ HT40/ 2.4GHz band

  • Sensitivity:

HT40 MCS7 : -70dBm@10% PER(MCS7) /2.4GHz band

HT20 MCS7 : -71dBm@10% PER(MCS7) /2.4GHz band

  • Transmit Power:

IEEE 802.11n: 16dBm @HT20/40 MCS7 /2.4GHz band

IEEE 802.11g: 16dBm @54MHz

IEEE 802.11b: 18dBm @11MHz

  • Wireless Security: WPA/WPA2, WEP, TKIP, and AES

  • Working mode : Bridge、Gateway、AP Client

  • Range: 50 meters minimum, open field

  • Transmit Power: 17dBm

  • Highest Transmission Rate: 300Mbps

  • Frequency offset: +/- 50KHZ

  • Frequency Range (MHz): 2412.0~2483.5

  • Low Frequency (MHz): 2400

  • High Frequency (MHz): 2483.5

  • E.i.r.p (Equivalent Isotopically Radiated power) (mW)<100mW

  • Bandwidth (MHz): 20MHz/40MHz


The reset button is hole button. After pressing the reset button for more than 5 seconds, the Gateway will be restored to the factory settings.

Zigbee Performance

  • TX Power: 17.5dBm

  • Range: 100 meters minimum, open filed

  • Receiving Sensibility:-94dBm

  • Frequency offset: +/-20KHZ

  • Frequency Range (MHz):2401.0~2483.5

  • Low Frequency (MHz):2400

  • High Frequency (MHz):2483.5

  • E.i.r.p (Equivalent Isotopically Radiated power) (mW)<100mW

  • Bandwidth (MHz):5MHz

  • Modulation: OQPSK

3.2 Performance Requirement

Bluetooth Performance

  • TX Power: 19.5dBm

  • Bluetooth: 19.5dBm

  • Range: 150 meters minimum, open filed

  • Receiving Sensibility: -80dBm@0.1%BER

  • Frequency offset: +/-20KHZ

  • Frequency Range (MHz): 2401.0~2483.5

  • Low Frequency (MHz): 2400

  • High Frequency (MHz): 2483.5

  • E.i.r.p (Equivalent Isotopically Radiated power) (mW)<10mW

  • Bandwidth (MHz): 2MHz

  • Modulation: GFSK

LTE Cat M1

  • Operation Frequency Band: 850/900/1800/1900MHZ

LTE Cat1

  • LTE FDD: B2/B4/B5/B12/B13

  • WCDMA: B2/B4/B5​

  • LTE FDD Datarate: 10(DL)/5(DL)

Z-wave Performance

  • TX power up to13dBm (20mW)

  • RX sensitivity: @100kbps-97.5dBm

  • Range: 100 meters minimum, open filed

  • Default Frequency: 916MHz( Different country with different frequency)   Pls check the Z-wave frequency band table

  • Global:LTE:FDD:B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28

  • North America: LTE TDD:B2/B4/B12/B13

  • LTE TDD:B39 (for cat.M1only)

4100mAH  (It can last 4 hours without DC power )

Li battery


10/100M bps







RF Factory Test Mode

Setting the Board into the test mode, using the Iqexl-ws that can test the Wi-Fi, Zigbee, Bluetooth, LTE.

Please refer to the DUSUN Test Specification for details.

  • TX Power up to 20 dBm

  • 915MHZ,GFSK, RX sensitivity: -126.4dBm@600bps

  • 868MHZ, GFSK, RX sensitivity: -121.4dBm@2.4Kbps

  • 433MHZ,OOK , RX sensitivity: -107dBm@4.8Kbps

  • 315MHZ, GFSK, RX sensitivity: -111.9dBm@38.4Kbps

3.3 Z-wave Frequency band table

Setting the corresponding z-wave frequency band according to the Development user manual

4. QA Requirements


4.1 Quality and Testing Information

Information Description

Standard(Yes) custom(No)

ESD Testing

RF Antenna Analysis

Environmental Testing

Reliability Testing

Operate temperature






FCC, CE, Zigbee, Bluetooth(BQB), RoHs


5. Software requirement


This software will be based on MTK platform. It runs on the OpenWrt system. And the Features:

  • Wi-Fi

  • Zigbee 3.0

  • Bluetooth 5

  • Z-Wave

  • LTE

  • OTA

  • MQTT

5.1 Defines

5.1.1 Boot up

When insert the power , The green and yellow Led are lighting, the Yellow LED is go out and the green LED is

blink, the green led is lighting, the gateway boot up successfully.

5.1.2 Reset

Keep pressing the button for 5s. All matching information is eliminated.

5.1.3 Indicator LED

  • Green LED: it is used to indicate system startup

  • Yellow LED: it is used to indicate the operating the Zigbee and Z-wave. When the gateway communicate with sensor, the led will be blink. If let the gateway go into pairing mode, the led will be blink.

  • Red LED: it is used to indicate gateway connect with cloud, if the gateway connect with successfully, the Red LED is go out, failed is lighting.

5.2 Wi-Fi Configuration

The Wi-Fi support the AP mode and client mode. It can be switched.

The name of AP : xxxxxxx

Pass word : xxxxxxx

5.3 Zigbee Configuration

The Zigbee stack is version 3.0, it can support ZHA, Greenpower, ZLL, ZSE etc.

It support most cluster of Zigbee devices. Like door sensor, leakage sensor, Motion sensor, Tem&Hum sensor,

smart plug, smart lamp, smoke sensor, curtain etc. It can used web or command to add the device.

5.4 Bluetooth Configuration

The Bluetooth is core 5.0, it supports BLE 5. It can used web or command to add the device.

5.5 Z-Wave Configuration

Z-Wave is a standard module, it supports most cluster of Z-Wave devices. It can used web or command to add

the device.

5.6 LTE Configuration

The gateway power on , the LTE will set up , and check if there is a sim card, then scan the network and join it.

It can used the web or command to change the APN to adapt to different countries.

5.7 OTA

The gateway can be upgradeable over the network.

5.8 MQTT

The gateway support the MQTT protocol to connect the cloud.

6. Application Scenarios


Application NO

Function Introduction


Model Name

Firmware Version

Wi-Fi and Bluetooth Scanner




Work with Beacon for Indoor Positioning




Manage, monitor and control smart household




Application List

6.1 AP-01 Monitor Shopping and Street Activity

The smart gateway can be used to detect iPhone and Android devices, which can be detected without the need of being connected to an specific Access Point, enabling the detection of any smartphone, laptop or handsfree device which comes into the coverage area of this smart gateway and in general any device which works with Wi-Fi or Bluetooth interfaces. Users have to do nothing to be detected as the Wi-Fi and Bluetooth radios integrated in their smartphones.

Working Scenario

Schematic Diagram

Example of information monitored by the Wi-Fi Scanner

Example of information monitored by the Bluetooth Scanner

6.2 AP-02 Beacons for Indoor guidance and location

Exemplary deployment of a beacon infrastructure

The beacon attached to the asset to be tracked sends BLE signals to Smart Gateway that are installed in the building. The Gateway processes the provided data and sends it via Wi-Fi, Ethernet to Server. Here, the position is displayed on a map and motion statistics can be retrieved.

6.3 AP-03 Smart Home IoT

The Smart Gateway Working Scenario

The Smart Gateway as the brain of the smart home connects wirelessly with a wide range of smart devices and make them work together.

  • Control lights, electronics, and small appliances from anywhere.

  • Set devices to turn on and off at different times of day.

  • Receive alerts when there’s unexpected activity in your home.

  • Set connected lights to turn on and off as people come and go.

  • Monitor moisture and temperature.

7. Certification







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Smart Gateway L Serial Specification