Owner's manual

HXJZ-873 Mini Power Wireless Module User’s Manual
10. High speed wireless communication and large data buffer
When the speed rate in the air is quicker than interface’s, allowing to transmit unlimited length data at one
time, when the speed rate is slower or equal the interface’s, allowing the transmission of 255 Bytes long data
frames at one time for more flexible programming by users.
11. Intelligent data control and the user doesn’t need to prepare excessive programs
Even for semi duplex communication, the user doesn’t need to prepare excessive
programs, only receiving/transmitting the data from the interface. HXJZ-873 will automatically
complete the other operations, such as transmission/receiving conversion in the air, control, etc.
12. High reliability, small and light
Single chip radio- frequency integrated circuit and single chip MCU are used for
lessened peripheral circuits, high reliability, and low failure rate.
13. Watchdog monitor
Watchdog monitors the inner function, so that change the traditional product structure and
improve the product reliability.
Application of HXJZ-873
1.Appearance figure
Antenna socket
TX/RX indicator light
Red: TX , Green :RX
HXJZ-873 figure
User interface
2.HXJZ-873 interface definition
1) User’s interface
HXJZ-873 have one interface of TTL/RS232/RS485, user can choose one .
HXJZ-873 standard interface: when the antenna upward , the plastic socket gap
upward ，from left to right,1-9 pin in turn，as below figure: