Hexin Technology HXJZ-862A 500m Micro Power RS-232/RS-485/TTL to RF Wireless Module - Manual (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