PCBA

Quad-E4G PCBA

OpenWrt Embedded 4G/WiFi Board
DETAIL

CPU

MT7621A (dual-core 880 MHz MIPS)

RAM

DDR3 256 MB (up to 512 MB)

Flash

SPI NOR 32 MB

(option: second SPI NOR 64MB)

HDD

1x microSD slot (SD-XC)

Ethernet

5x Gigabit ethernet with ESD protection

Module slots

3x mini PCIe (buses: PCIe + USB 2.0)

1x M.2 key-B (buses: USB 3.0/2.0)

SIM slots

1x micro SIM (mini PCIe #1)

1x micro SIM (mini PCIe #2)

1x micro SIM (mini PCIe #3)

1x micro SIM + 1x mini SIM (M.2)

External SIM headers

2.00 mm pitch

USB

1x USB 2.0 A

Serial console

1x micro USB
Driver free

LEDs

1x Power

1x System/Status

1x WAN

4x LAN

1x mini PCIe #1

1x mini PCIe #2

1x mini PCIe #3

1x M.2

Extra PIN header

I2C bus

UART 2, UART 3

Available GPIO

Button

1x Rest

1x WiFi on/off

1x User define

1x Power on/off switch

Battery

RTC battery

Power supply

DC 24V

Passive PoE (LAN1 and WAN)

Option: Standard PoE (WAN)

Dimensions

140 x 210 x 16 mm


Features
  • MT7621A Dual-Core 880 MHz
  • Dual flash U-Boot support
  • DDR3 256 MB System Memory
  • 5x Gigabit LAN RJ45 with ESD Protection
  • 3x MiniPCIe Slots 
  • 1x M.2 Slot for LTE Modem
  • 5x SIM Card Slot
  • 1x SD Card Slot
  • 1x USB 2.0 Port
  • 1x RTC Battery
  • 1x Micro USB Console
  • Built-in Hardware Watchdog
  • Support Standard & Passive PoE

Block Diagram

GPIO Assignment



MiniPCIe PIN Assignment


PoE PIN Assignment


M.2 PIN Assignment