Last spring, I wrote about MatchX.io MatchBox LoRaWAN gateway with GPS, WiFi, and Ethernet connectivity. The gateway is equipped based on a Mediatek WiFi module running Linux (OpenWrt/LEDE), Semtech chips for the LoRa part, and support up to 65,535 nodes, such as the as well as MatchStick, MatchModule, and MatchCore sensors provided by the company.
I’ve just received MatchBox gateway for review, but I’m still waiting for 920-925MHz LoRa nodes as they are going through the FCC certification process, and I also have to wait for clarifications regarding local regulations. So in the meantime, I’ll check out the gateway hardware.
The gateway is shipped with a power supply, power cord, two antennas, an installation guide,…
as well as three screws and pegs to wall mount the gateway and power supply, and in case you want to install the gateway on a pole, as shown below, for greater range (up to 20km LOS), a clamping collar is also provided.
The power supply has 100-240V 50/60Hz input and 24V DC / 0.5 output. It includes two Ethernet ports, the “PoE” port to connect to the gateway, and the LAN port which you can connect to your broadband or 3/4G router.
One end of the router includes two antenna connects for GPS and LoRa.
On the picture above, we can see the model (MX1702) has FCC certification, and since the company is based in Berlin (hence the photo with the television tower above), CE certification has also been passed, but another model number (MX1701) is used due to the different frequencies.
The other end of the gateway has a cover revealing the PoE port, a USB 2.0 port for storage, a USB type C port for debugging, and a Link LED. Installation is easy, as you just to plug a standard Ethernet cable – although a shielded one is recommended – into the PoE ports of the gateway and the power supply.
Put back the cover to protect the ports of the gateway from elements and insects. You could also use another Ethernet cable to connect the gateway to your router, but using WiFi is also possible.
At this stage, I normally open the device to check out the hardware design, but an enclosed letter asked me not to because the enclosure of rated IP65 and ultrasonically welded to it may not be waterproof anymore after I reassemble it.
The letter also explains how to register the gateway with its serial number at https://matchx.io/cloud using the cloud services in Europe, North America, Oceania, Korea, Japan/SEA (South East Asia), or India, so the service is basically available worldwide, provided your country allows it.
So instead of tearing it down myself, I asked the company to send some high-resolution photos of the board.
A Hi-Link HLK-7688A module is used on the board for WiFi with two u.FL antenna connectors (ANT4 and ANT3), and a PCB antenna. That module should be based on MediaTek MT7688A MIPS processor, but MatchX reports the processor is actually MT7628A. Both SoCs are very similar, but the latter supports 2×2 MIMO.
LoRa functionality is implemented with four Semtech chips:
- SX1301 Base Band Processor for Data Concentrator for Long-Range Communication Network
- 2x SX1257 RF I/Q Multi-PHY Mode Transceiver 860-1000MHz
- SX1272 long-range, low power RF Transceiver 860-1000MHz with LoRa Technology
LoRa circuitry is then connected to ANT2 u.FL connector.
On the other side of the board, the most notable part is Ublox MAX-7Q GNSS module supporting GPS/QZSS, GLONASS, and connected to ANT1 antenna connector.
You’ll find more details on Matchx.io website, and in the others parts of the review namely “MatchX MatchBox LoRa Gateway Setup (for AS923) and Installation” and “AS923 LoRa GPS Tracking with MatchX MatchBox Gateway and RAK811 LoRa GPS Tracker Board“.