User’s Manual Wireless Module
Page 3 of 22
1. Introduction
GWF-3M08 is a WLAN module supporting IEEE 802.11 b/g/n standards with max 7-pin
connector supporting USB 2.0 /1.1 interfaces. This is a small form factor and low cost compact
WLAN module designed for the wireless connectivity of products with embedded system.
This module operates in 2.4GHz ISM frequency band, it applies a highly integrated
MAC/BBP and RF single chip RT5370 with 150Mbps PHY rate supporting. This module can be
built-in other embedded applications such as IP Camera, IP set top box, GPS, Internet radio
apparatus, it can be directly soldered on a main PCB.
1.1 Features
802.11b: 1, 2, 5.5, 11Mbps; 802.11g: 6, 9, 12, 24, 36, 48, 54Mbps
802.11n:
(20MHz)
MCS0-7, Support up to 72Mbps
(40MHz) MCS0-7, Support up to 150Mbps
OFDM, Peak rate 150Mbps, Peak throughput 90Mbps.
Security support for 64/128 WEP, WPA, WPA2, TKIP, AES
Operates in 2.4GHz frequency bands. Power Management
WPS and TX external control, WiFi-direct supported.
2. Product Information
2.1 Typical Specification Overview
Standards
IEEE802.11b/g/n (1T1R mode)
Operating Frequency
2.412GHz ~ 2.462GHz.
Protocols
802.11b: CCK, QPSK, BPSK, 802.11g/n: OFDM
Antenna
Built-in On Board PCB antenna
Security
WPA/WP2/WPAI, 64/128/152-bit WEP, WPS
Transmit Output Power
(Typical value to antenna)
11b: 17±1.0dBm @ 11Mbps; 11g: 14±1dBm @ 54Mbps
802.11n: (HT20), 12+/-1dBm, 802.11n: (HT40), 12+/-1dBm
Receive Sensitivity
(Typical value after
antenna)
11b: -84dBm @ 11Mbps; 11g: -72dBm @ 54Mpbs.
802.11n: (HT20), -68dBm@MSC7, (HT40),-67dBm@MSC7
Operating Voltage
5.0V or 3.3VDV± 5%
Operating Current
（
OFDM,
54Mbps
）
5.0V power input,<150mA; 3.3V power input.<250mA
Bus Interface
USB 2.0/1.1
USB Interface
Max: 7 pins, 2.0 mm pitch pin header. Or Max: 7 pins semi-hole.
