HXJZ-875 Low Power Wireless Module User’s Manual
HXJZ-875 Low Power Wireless Module User’s Manual About HXJZ-875 HXJZ-875, the Low power wireless module, is used as the wireless data transmission in short distance. With the small size, weight and power consumption and good stability and reliability, it has the function of bi-directional data sign transmission, test and control.
HXJZ-875 Low Power Wireless Module User’s Manual 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. 12.
HXJZ-875 Low Power Wireless Module User’s Manual Low level to sleep, High 1 SLE Sleep control (input) end ------------------- level awake (can be space) 2 TXD TTL/RS232: data transmitting User’s PC receive 3 RXD TTL/RS232: data receiving User’s PC transmite 4 ------- ------------------------- --------------------------------- 5 GND 6 A RS-485/A 7 B RS-485/B 8/9 ----------- 2 -------------------- --------------- 1 GND GND GND 2 +5V Power+ Power+ Connect to the ground
HXJZ-875 Low Power Wireless Module User’s Manual its own grounding, but it must be absolutely separated from the municipal electric supply. 3) Saving power model HXJZ-875 have three Saving power models: awaken from Hardware. Awaken from Hardware: When HXJZ-875 sleeping in this saving power model, the current is under 1mA. Sleeping status: when you input low level at NO. 1 pin, it can sleep, don’t transmit or receive data. Normal work status: when you input High level at NO.
HXJZ-875 Low Power Wireless Module User’s Manual Technical specification of HXJZ-875 Modulation mode: GFSK Working frequency: 433MHZ Transmission power: 2W/1W Receiving sensitivity: -123dBm Transmitting current:: <1.5A Receiving current: <50mA Channel speed rate: 1200/2400/4800/9600/19200/38400Bit/s, User can Choose one Interface speed rate: 1200/2400/4800/9600/19200/38400Bit/s, User can Choose one Change time for receiving and sending: <20ms Interface data format: 8E1/8N1/8O1 Power supply: 5± 0.
HXJZ-875 Low Power Wireless Module NO. Trouble Trouble causes and solve ways 1 No shine of Indicator light a、Power Line badness touch . b、Power is bad. c、Power line meet in reverse, or 2 No transmit or No receive 3 Bit error High rate 4 Indicator twinkling light User’s Manual diode of polarity protect is bad. a、Radio is badness touch with PC/terminal. b、Radio with TTL/RS232/RS485 not match terminal. c、RX frequency and TX frequency is not same.
