• Qualcomm Atheros IPQ4019 710MHz CPU
• 2×2 On-board MU-MIMO 2.4GHz WiFi radio, up to 300Mbps physical data rate
• 2×2 On-board MU-MIMO 5GHz WiFi radio, up to 867Mbps physical data rate
• MicroSD card slot for expandable storage
• MiniPCIe slot for 3rd WiFi radio support

Specification Table

APPLICATIONS •

802.11n/ac MU-MIMO Access Point • Point-to-MultiPoint High Capacity Wireless Bridge • Transportation Access Point

 Specifications :

Chipset CPU: Qualcomm Atheros IPQ4019 Quad-core ARM Cortex-A7 710 MHz

Reference Design DK04

System Memory 256MB (supports up to 1GB) NOR Flash 32MB

Wireless On-board 2x2 2.4GHz 802.11b/g/n, max 23dBm per chain, and On-board 2x2 5GHz 802.11a/n/ac, max 23dBm per chain, 2x U.FL connectors, diplexer allows dual band concurrent operation

Frequency Range 2.412~2.472GHz and 5.180~5.825GHz,

simultaneous dual band Modulation Techniques 802.11b : DSSS (DBPSK / DQPSK / CCK) 802.11a/g : OFDM (BPSK / QPSK / 16-QAM / 64-QAM) 802.11ac/n : OFDM (BPSK / QPSK / 16-QAM / 64-QAM / 256-QAM)

Interface 2x Gigabit Ethernet LAN RJ45 Port with Auto MDI-X 1x Mini PCI Express v2.0 Slot at 9.2mm Height with PCIe and USB 2.0 signals 1x Serial Port 4 Pin Connector (UART)1 1x Serial Port 6 Pin Connector (High Speed UART) 1x JTAG 20 Pin Connector2 1x USB 3.0 Port Reset Button 1x F/W Reset Button LED 3x LED Indicators : 1x Power and 2x LAN Activity Indicators

Power over Ethernet IEEE 802.3af (48V) / IEEE 802.3at (56V) and Passive PoE 36~56V DC, Supply PSE for pass-through (IEEE 802.3at) DC Power 1x

DC Jack Connector : 12V, 2A Operating Voltage 3.3V, 5V (for PA), and 12V Power Consumption 11.75W (Max)

Supported Operating System QCA Reference Firmware, OpenWRT v18.x

Certification RoHS Compliance

Environmental Temperature Operating : -20ºC to 70ºC , Storage : -40ºC to 90ºC

Environmental Humidity, non-condensing Operating : 5% to 95% , Storage : Max. 90%

Dimensions (W x H x D) 120 x 105 x 15 mm

Extras 1x SIM Card Slot, 1x MicroSD Card Slot

Other Features Supports Dynamic Frequency Selection (DFS) 1.The Serial Port is a 4-pin header (TTL). A Serial Converter is available to change the TTL signals on the board to RS-232 signals for debugging. 2.The JTAG Port is a 20-pin header. A JTAG kit is for writing you

It is done and the self compiled OpenWRT 19 firmware works !!

• Setup a TFTP Server https://openwrt.org/docs/guide-user/troubleshooting/tftpserver
•  
• You have to start the board with UART
• On start you press fast a key
• (ipq44xx)

tftpboot openwrt-ipq40xx-compex_wpj419-nand-squashfs-nand-factory.ubi
nand erase.chip; nand write ${fileaddr} 0x0 ${filesize}
set fsbootargs ubi.mtd=rootfs root=/dev/ubiblock0_1 rootfstype=squashfs
saveenv
res

Everything is working fine

   - Now: you have  OpenWRT with Version 19.07.4 and LINUX Kernel 5.4.77

   - Then i updated the network file /etc/config/network with my tagged VLAN

https://openwrt.org/docs/guide-user/network/vlan/switch_configuration

 (Section: Creating driver-level VLANs)

   - Then i configured my WIFI in /etc/config/wifi

 Now, i have a perfect WIFI with tagged VLAN (802.1q)

 One Problem: i can not install LuCI ☹