#1: Power input, DC, 5V or 9 ~ 15V
#2: Two Ethernet ports
WAN and
LAN
#3: Programmable PUSH button
#4: GPIOs, SPI, I2C, SLIC, UART, LED, COLD_RESET, 3.3v/5v/raw_vcc
#5: Sensors I/Os
#6: USB host
#7: JTAG and GPIOs
#8: Processor, MIPS 24K, 400Mhz
#9: LEDs(WiFi,
WAN,
LAN, SYS, Heart Beat, PWR)
#10: Main antenna, chip antenna or external antenna
#11: Diversity antenna
#12: 5V ESD protection
#13: 14 positions screw terminal