Brother Industries Ltd. T77H228 Manuel D’Utilisation

 
The T77H228.00 802.11b/g/n module provides wireless modem functionality utilizing direct 

sequence spread spectrum and OFDM/CCK technology. This module is based on 

Broadcom BCM4319GKUBG P20 solution which is with integrated 2.4GHz IEEE802.11 

b/g/n (MAC/baseband/radio), power amplifiers (PA), and power management unit (PMU).  

 
 
 
 
1.1 Scope 
 
    The wireless LAN is compliant to IEEE 802.11b and IEEE 802.11g and IEEE 802.11n 

standard.  The data rate of 802.11b is up to 11Mbps and fallback rates of 5.5, 2, 1Mbps. 

The data rate of 802.11g is up to 54Mbps and fallback rates of 48,36,24,18,12,9, 6Mbps. 

The data rate of 802.11n is up to 65Mbps and fallback rates of 6.5, 13, 19.5, 26, 39, 52, 

58.5, 65Mbps for HT20. And also provide 13.5, 27, 40.5, 54, 81, 108, 121.5, 135Mbps for 

HT40. 

 
 
 
1.2 Function 

 

•  RoHS and Green Compliant. 
 
•  1X1 IEEE802.11b/g/n based on Broadcom 4319 solution.  

 

•  USB 2.0 Interface, High and Full Speeds supported. 

 

•  Module is powered by the host with a 3.3V +/- 10% supply. 

 

•  Two on-board PCB antennas. 

 

•  DPDT switch for antenna diversity.