Hexin Technology HXJZ-871 800m-1200m Micro Power RS-232/RS-485/TTL to RF Wireless Module - Manual (Page 5)

HXJZ-871 Mini Power Wireless Module User’s Manual
HXJZ-871 Power supply and sleep mode
1. Power supply
HXJZ-871 uses DC power supply with voltage of +5V. It can also share power supply with other
equipment, however, the high quality power supply with desirable ripple factor should be selected. In addition,
the reliable grounding must be used if there is other device in the system equipment. In case of failure to
connect with the earth, it can form its own grounding but it must be absolutely separated from the municipal
electric supply.
2. Sleeping function
HXJZ-871 had sleeping and no-sleeping version.
The current ofHXJZ-871 in the sleeping state is 1Ua. Users must tell which version will be chosen
before place the order in advance (No sleeping is default).
For sleeping version, users can open and close the sleeping function by themselves.
HXJZ-871 with the sleeping function has two awakening way, one is hardware awakening way, another
is interface awakening way (air awakening will be reserved) Hardware awakening is achieved by the Pin 5
input to the high level and input low level to awake.
Awaken from Interface is achieved by users send designate protocol data by HXJZ-871 interface to open
or awake. HXJZ-871 with the function of sleeping is default in close state before leaving factory, so users must
set
by HXJZ-871 software to set the awakening mode to hardware awakening or interface awakening. Users can
also tell us to set in advance.
If users use HXJZ-871 with the sleeping function, but hope not to apply the sleeping function, the users
can
set by HXJZ-871 software to set for no-sleeping state or make HXJZ-871 pin 5 to connect the ground in the
mode of hardware awaken.
HXJZ-871 parameters setting
HXJZ-871 have one interface of TTL、 RS232、 RS485, You must specify the interface when you buy.
HXJZ-871 main parameters: COM baud rate and verify，RF baud rate, Channel and frequency。You can
change these parameters by our RF Module soft. 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.
Two HXJZ-871 communicate must have condition as follow:
1.Their channels (i.e. frequency) are same.
2.Their RF rates are same.
3. RF Module Com baud rate and verify is agree with its equipment or PC that it connects with.
Parameters default value:
Channel NO.：1
Interface speed rate：9600BPS
Interface verify：none
Speed rate in air：2400BPS