Page 1
HXJZ-862 Mini Power Wireless Module
User’s Manual
Page 2
HXJZ-862 Mini Power Wireless Module User’s Manual
About HXJZ-862
HXJZ-862, the mini power wireless module Enveloped with Epoxy, is used as the wireless data
transmission
in short distance.
With the characteristics of small size, weight, low power consumption, good stability and reliability, it
can provide bidirectional data transmission, test and control for users.
It is used for Wireless meter reading, such as water meter, electric meter and gas meter, parking meter,
intellective card, electronic weighing apparatus, meter for checking 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-862 Features:
1. Low power transmission
The transmission power is ＜100mW, Receiving sensitivity: -110dbm,
Size: 47mm*33mm*14mm.
2. Low power consumption
Receiving current<11mA, transmission current<100mA.
3. ISM frequency band, not need to require frequency point
Carrier frequency of 428---433MHz，also can provide 868/915MHz .
4. High anti-jamming and low BER (Bit er ror Rate)
Based on the FSK modulation mode, it adopts the efficient communication protocol. The 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） >500m when the
antenna is higher than 2m (BER=10-3/9600bps).
6. Transparent data transmission
Transparent data interface is offered, which can be fit for any standard or nonstandard user’s protocol. Any
false data generated in the air can be filtrated automatically (What has been received is exactly what has been
transmitted). Receiving and dispatching switching time <10ms.
7. Multi-channels and Multi-speeds
And The HXJZ-862 module standard disposition provides 8 channels to meet many kinds of
correspondent combination mode of the users. The HXJZ-862 Module may provide many kinds of
correspondence budrate such
as 1200bps, 2400bps, 4800bps , 9600bps, 19200bps and so on.
The wireless transmission speed and the connection baudrate are proportional, to satisfies the
customer equipment of different baudrate.
Page 3
HXJZ-862 Mini Power Wireless Module User’s Manual
8.High speed wireless communications and big data buffe r.
When the airborne speed is bigger than the serial port speed, may transmit infinitely data continuously, and
when the airborne speed is smaller than or was equal to the serial port speed ,may transmit 255 bytes data.
9. 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-862 will automatically
complete the other operations, such as transmission/receiving conversion in the air, control, etc.
10. 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.
11. Watchdog monitor
Watchdog monitors the inner function, so that change the traditional product structure and
improve the product reliability.
12. Antenna choose
Users can choose various antennas setting project and antenna according to the user’s different request.
13. Encapsulation Structure, dustproof, waterproof and static proof
Comprised by plastic DOS shell, epoxy encapsulation, dustproof, waterproof and static
proof good anti-jamming.
Application of HXJZ-862
1. The definition of HXJZ-862’s Interface
HXJZ-862 provide TTL level UART, RS-232, RS-485 Interface, User must specify the interface when
you place an order.
HXJZ-862 educe pipe, the pipe contain four line：
Line
PIN
Description
User terminal
Remarks
Red Line
VCC
Power: +5±0.5V
+5±0.5V
TTL 3V user’s
choose
Black Line
GND
Power supply/Ground
DGND/AGND
Blue Line
RXD/RS-485(B)
Serial data receiving end
TXD/RS-485(B)
Yellow Line
TXD/RS-485(A)
Serial data transmitting end
RXD/RS-485(A)
Page 4
HXJZ-862 Mini Power Wireless Module User’s Manual
If the user needs to use DB9 female socket, standard definition are as follows (also
customization as
user’s request):
DB9 female socket
Pin
Description
User terminal
Remarks
7
VCC
Power: +5±0.5V
+5±0.5V
5
GND
Power supply/Ground
DGND/AGND
3
RXD/RS-485(B)
Serial data receiving end
TXD/RS-485(B)
2
TXD/RS-485(A)
Serial data transmitting end
RXD/RS-485(A)
User’s equipment
+5v regulator n.
power supply
DB9 female socket
HXJZ-862 parameters setting
HXJZ-862 can supply three kinds of interface, TTL, RS232, RS485. You must specify the interface when
you place an order.
HXJZ-862 main parameters: COM baud rate and verify，RF baud rate, Channel and frequency。
You can change these parameters by our RF Module software.
When RF baud rate is faster than COM baud rate，One frame Can transmit limitless data. When RF baud
rate is not faster than COM baud rate ，One frame Can transmit 255 bytes most. You can set the rate according
your need.
The general Power supply is 5V DC.
The communication of Two HXJZ-862 must have the following conditions:
1. the same.channels (i.e. frequency)
2. the same RF rates .
3. The Com baud rate and verify of the RF Module is the same with its equipment or PC.
Parameters default value:
Channel：1
Interface speed rate：9600BPS
Interface verify：none
Speed rate in air：9600BPS
Page 5
HXJZ-862 Mini Power Wireless Module User’s Manual
Channel and frequency list
Channel
Frequency
Channel
Frequency
1
428.0028MHZ
5
432.1685MHZ
2
429.0012MHZ
6
431.5020MHZ
3
433.3020MHZ
7
430.0764MHZ
4
433.9164MHZ
8
434.5308MHZ
Technical specification of HXJZ-862
Modulation mode: FSK
Working frequency: 428---433MHZ
Transmission power: ≤ 100mW
Receiving sensitivity: -110dBm
Receiving current: <11mA/TTL，<11mA/RS485，<16 mA/RS232
Channel speed rate: 1200/2400/4800/9600/19200 Bit/s User can Choose one
Interface speed rate: 1200/2400/4800/9600/19200 Bit/s User can Choose
one Change time for receiving and sending: <10ms
Interface data format: 8E1/8N1/8O1
Power supply: 5±0.5V（RS232/RS485），2.7--3.3V (TTL) DC
Working temperature: -20℃～65℃
Working humidity: 10%～90% relative humidity without condensation
Dimension: 47mm*33mm*14mm（not include antenna）
Attachable Communication with other Model: HXJZ-862/JZ863/JZ864/JZ865/JZ866
Model and name
JZ
862
-T
-U
-U:USBpower
T：TTL interface
2：232 interface
4：485 interface
Nakedboardno
Company
Page 6
HXJZ-862 Mini Power Wireless Module User’s Manual
Optional Antenna:
Trouble and solve ways:
Item
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 diode of polarity protect is bad.
2
No transmit or
No receive
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.
3
Bit error rate
High
a、antenna not match, or touch bad;
b、RF baud rate is not right. c、
Power supply ripple is too great.
4
Indicator light
twinkling
a、Electromagnetism disturb in circumstance.
b、Same frequency disturb in the circumstance.
Loading...