Hi-Link HLK-SW04 Podręcznik użytkownika - Strona 4
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2. Hardware description
2.1 network characteristic
The relay controller is based on HLK-M50 module. HLK-M50 is a cost-effective embedded
serial port-WiFi transmission module developed by HI-LINK Electronics. The module has
built-in TCP/IP protocol stack, which can realize the conversion between user serial port and
wireless network (WIFI) interface, and can transmit data between serial port and network
TCP/UDP connection.
The following table is the parameter specification table for the WiFi module：
Network standard
Wireless transmission
rate
Channel Number
Frequency range
Transmitting power
Connect Port
Antenna type
WIFI work pattern
Wireless security
Configuration mode
Network Connection
Type
Maximum number of
connections under the
TCP Server
Serial port baud rate
Status indicator
Network Parameter
Wireless standard：IEEE 802.11n、IEEE 802.11g、IEEE 802.11b
11n:Up to 150Mbps
11g:Up to 54Mbps
11b:Up to 11Mbps
1～11
2.4～2.4835G
15～20 dBm
1 USB、1 usb port （host）、GPIO
Antenna
Plate-borne antenna/External antenna
Functional parameter
STA/AP
64/128/152 位WEP encryption
WEP、WPA、WPA2（CCMP、TKIP）security mechanism
（Only support WPA2-CCMP in AP mode）
Serial AT command
Serial Port to Network
TCP Server/TCP Client/ UDP Server/ UDP Client
5
1200~3000000bps
Other parameters
A state indicates the output.
Working temp：-20～70℃
Working humidity：10%～90%RH（non condensing ）