Specs:
Products features:
Support VHF / UHF user programming (410-470MHZ);
RS-232 and RS-485 custom ttl;
Configurable 1200-9600bps serial data rate, user configurable 240-9600bps air data rate;
Short transmission-reception transfer time;
Long-range transmission distance of 15Km;
The maximum sensitivity down to -136dBm;
Technical parameters:
Technical parameters:
Frequency range
410-470MHZ
Frequency stability
≤ ± 10PPm
Potency of transmission
500mW
Modulation
Lora
Data air
240-9600bps
Interface
RS232 and RS485 (custom TTL)
Power supply
5V @ 2A (8 ~ 36V factory customized)
Data format interface
8E1 / 8N1 / 801
Transmission distance
20km in open and clear air, with maximum power, 5dBi antenna gain, 2m height,
Air data rate: 240bps
Reception Sensitivity
-136dBm @ 240bps / -120dBm @ 9600bps
Channel bandwidth
125KHZ @ 240bps / 250KHz @ 9600bps
Work temperature
-40 ~ 80 (industrial grade)
Working humidity
10% to 90% relative humidity, non-condensing
Emission current
≤ 1.5A (the maximum output current is not less than 2A)
Receive current
≤ 80mA
Dimension (L / W / H)
86X45X20mm
Weight (g)
≤ 500g
Pin Definition:
Pines
BX-LM01
Observation
DB9 male connector
1
VCC (+ 5V)
5 ~ 36V customized
2
RS-232 / RXD
3
RS-232 / TXD
4
GND
Power supply ground
5
AGND
Signal ground
6
RS-485 /
7
RS-485 / B
8
SET_EN (activation set)
9
SQ (receive signal indicator)
Frequency
The default frequency channel is CH0, the frequency of channel 0 can be arbitrarily set and saved by software. Users can enter / rewrite any necessary Rx and Tx frequencies in the software.
Programming software
1.1 Enter configuration mode
Hardware: connect the 8 L Foot with ground and green led keeps lighting, the module enters configuration mode, the serial port rate is 9600 8N1
Software: With the current baud rate, more than 3 numbers are sent continuously, BX-LM01 enters the setting mode, and the serial port output is ok
Format + + +
Return OK
1,2 Frequency setting of channel 0 (this frequency is the operating frequency of 0 channels
Format> WF0 / RX: 453.25000 / TX: 453.25000
Return <Channel_0: RX: 453.25000 / TX: 453.25000
Explanation> WF0 means the working frequency of the writing channel 0
RX: means the receiving frequency is 453.25000MHz, please note that the frequency must be accurate to 5 digits after the decimal point;
TX: means it transmits FREQUENCY OF 453.25000 MHz, please note that the frequency must be accurate to 5 digits after the decimal point;
The receive and transmit frequency settings of the same BX-LM01 may be the same or different, but the modules of the same communication system must have the same receive and transmit frequency. Dip switch can only set frequency on channel 0.
1.3 Configuration Baud Rate Interface
Format> WBA
Return <Com_Rate: 1200L
Explanation> WB means write interface baud rate
A ~ E means1200 ~ 9600bps; A = 1200L B = 1200H C = 2400 D = 4800 E = 9600
Remark: A = 1200L, 1200 interface, 240BPS air transmission, longer distance communication.
1.4 Configuration parity bits
Format> WVN
Return <verify: 8N1
Explanation> WV means Interface Parity Bit
N , E , O means 8N1 , 8E1 , 8O1
1.5 Read all command parameters
Format> R
Return <Channel_0: RX: 453.25000 / TX: 453.25000
<Com_Rate: 1200
<Air_Rate: 1200
<Verify: 8N1
Explanation of the module output current operating parameters
1.6 Exit configuration mode
Format> E
Return OK
BX-LM01 output setting mode, if module enters setting mode, it will go away when it has no command action within 60 seconds.
The applications
Oil and gas production, pipeline monitoring, gas distribution, heat network monitoring
Monitoring System for water, water and wastewater wells
Power scheduling, distribution automation, load control
GPS positioning system, mobile data transmission
Earthquake, meteorology, environmental protection and urban lighting control
Railway, transportation, metallurgy, chemical industry and industrial automation process control
Ship monitoring and control (UMV), robot control data link
Military and police communications
Industrial remote control, telemetry, automated data acquisition system
