Hi-Link HLK-WR02 - RS232 Interface; LAN and WAN Interface

Shenzhen Hi-Link Electronic Co.,Ltd
http://www.hlktech.comTel:+86 0755-83575155 Fax+86 0755-83575189
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Fig 2-2 HLK-WR02Interface
2.3.1 RS232
The following figure shows a schematic diagram of the external interface of RS232.
Interface,the definition is as follows:
Fig 2-3 RS232 PIN
No Function Direction Explaination
1 N/C N/C None
2 RXD Input Data reciving input
3 TXD Output Data sending output
4 N/C N/C None
5 GND Input Ground
6 N/C N/C None
7 N/C N/C None
8 N/C N/C None
2.3.2 LAN Interface and WAN interface
HLK-WR02 serial wifi server provides two network interface, WAN port and LAN port, the
interface is a standard form of RJ-45 interface. RJ-45 interface definition is shown as
below：