About hxjz-871, Features – Hexin Technology HXJZ-871 800m-1200m Micro Power RS-232/RS-485/TTL to RF Wireless Module User Manual
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HXJZ-871 Mini Power Wireless Module User’s Manual
About HXJZ-871
HXJZ-871, a Mini power wireless module, is used as the wireless data transmission in short distance.
With the characteristics of small size, light 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 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.
Features:
1.Ultra low power transmission
The highest transmission power is 100mW, high receiving sensitivity: -121dbm,
Size: 44mm*27mm*8mm
2. ISM frequency band, not requiring on application of f requency point
Carrier frequency of 433MHz,also capable of 868/915MHz.
3. High anti-interference and low BER (Bit error Rate)
Based on the GFSK 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.
4. Long transmission distance
Within the range of visibility, the reliable transmission distance is(BER=10-3/1200bps)
>800m when the
antenna is higher than 3M.
5. Transparent data transmission
Transparent
data
interface
is
offered,
which
can
be
fit
for
nonstandard
user
protocol.
Any
false
data generated
in
the
air
can
be
filtrated
automatically
(What
has
been
received
is
exactly
what
has
been transmitted). The change time for receiving and sending <10ms.
6. Multi-channel and speed
The HXJZ-871 provides 8 channels to meet the multiple communication combination mode of the users.
The
JZ861 Module can provide many kinds of correspondence baud rate such as 1200bps, 2400bps,
4800bps,
9600bps, 19200bps and 38400bps.
The wireless transmission speed and the connection baud rate are proportional, to satisfies the customer
equipment of different baud rate.
7. High speed wireless communication and Large data buffer
When the RF baud rate is bigger than the COM baud rate, allowing to transmit unlimited data at one time,
and when the RF baud rate is smaller than or was equal to the COM baud rate ,may transmit 255 bytes data
8. 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-871 will automatically
complete the other operations,