Hexin Technology HXJZ-874 800m-1200m Low Power USB to RF Wireless Module - Manual (Page 2)

HXJZ-874 Mini Power Wireless Module User’s Manual
About HXJZ-874
HXJZ-874, the mini power wireless module Enveloped with Epoxy, 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 bidirectional data sign transmission, test and control.
It is used for Wireless meter reading, such as Water Meter, Ammeter and Gas Meter, Parking Meter,
intellective card, electronic weighi ng apparatus, meter for checking on work attendance, queue wireless meter,
building control, shipping company control, alarm system, intelligent equipment, Automatic data collecting
system; Industrial remote control and remote test building automation, safety and security, powerhouse
equipment wireless monitor, entrance control system, etc.
If necessary, we can provide USB interface to make it easy to settle the question of Power Supply for
Mini computer and PC users.
HXJZ-874 Feature
1. Ultra low power transmission
Transmission power: ＜ 500mW(HXJZ-874B), ＜ 100mW(HXJZ-874A);High receiving sensitivity:
-123dbm,
Size: 70mm*45mm*19mm
2. Low power consumption
Receiving current<45mA, transmission current<360mA( HXJZ-874B),. <100mA(HXJZ-874A),
3. ISM frequency band, not requiring on application of frequency point
Carrier frequency of 428 ---433MHz，also capable of 868/915MHz.
4. High anti-interference and low BER (Bit error Rate)
Based on the GFSK modulation mode, it adopts the efficient communication protocol. T he actual bit error
rate of 10-5 ~ 10-6 can be achieved when channel bit error rate is 10-2.
5. Long transmission distance
Within the range of visibility, the reliable transmission distance is （ BER=10-3/1200bps ）
>3000m(HXJZ-874B) , >800m (HXJZ-874A),when the antenna height is greater than 3m
(BER=10-3/9600bps).
6. Transparent data transmission
Transparent data interface is offered to suit any standard or nonstandard user protocol. Any false data
generated in the air can be filtrated automatically (What has been re ceived is exactly what has been
transmitted). The charge time for receiving and sending <10ms.
7. Multi-channel and speed
The standard HXJZ-874 configuration provides 8 channels. to meet the multiple communication
combination mode of the users. It has baud rate to be chosen such as 1200bps 、2400bps、4800bps、9600bps、
19200bps、38400bps. The wireless transmission rate is direct ratio with baud rate of interface to meet user ’s
equipment requirement.