1 2 3 4 5 6 7 8 9 NC RXD TXD DTR GND DSR RTS CTS NC 2.3 9 48VDC 1.4W 2.4 SETUP SETUP 5S 2.5 LED NP301 3 Power Link/ACT Rx/Tx Power Link/ACT Rx/Tx 5 3 mm 6 4 LAN 10Base-T 100Base-TX TCP UDP APR ICMP DHCP