Specifications:
1 Features:
l Max. 2W Lower Power Emission
l High receiving sensitivity up to -123dBm/1200bps
l Reliable communication at high rate up to 115200BPS
l 3km-5km line of sight long transmission distance
l 2ms delay at 115200bps
l About 80g light weight
l With RS232&RS485 2 interface, TTL customized
l 0-16 Channels(DIP switch select and PC programming)
2 Pin Definitions
Pins | Definition | Description | Level | Terminal Connection |
1 | VCC | DC 5V | Positive power supply 8-36V can be set in factory | |
2 | Rxd/RS232 | Data Input | RS232 Level | Txd/RS232 |
3 | Txd/RS232 | Data Output | RS232 Level | Rxd/RS232 |
4 | GND | Ground of power supply | Negative power supply | |
5 | SGND | Signal | SGND | Signal |
6 | A/RS485 | RS485 Signal+ | RS485 Level | A/RS485 |
7 | B/RS485 | RS485 Signal- | RS485 Level | B/RS485 |
8 | NC | NC | ||
9 | NC | NC | ||
3 Working Frequency
The DIP switch can select 0~16 channels, and frequency point of 1~15 channels is fixed, and the frequency of the 0 channel can be set and saved arbitrarily through our software. Dial switch to "ON", means "1", dial "OFF" means "0", "1 is high" and "4" is "low.
Channel (1234) | Frequency(MHz) | Channel (1234) | Frequency(MHz) |
0(0000) | 453.25000 | 8(1000) | 449.75000 |
1(0001) | 425.25000 | 9(1001) | 456.75000 |
2(0010) | 428.75000 | 10(1010) | 460.25000 |
3(0011) | 432.25000 | 11(1011) | 463.75000 |
4(0100) | 435.75000 | 12(1100) | 467.25000 |
5(0101) | 439.25000 | 13(1101) | 470.75000 |
6(0110) | 442.75000 | 14(1110) | 474.25000 |
7(0111) | 446.25000 | 15(1111) | 477.75000 |
4 Software Function Setting
4.1 Enter setup mode
Continues to send 3 + numbers at current baud rate, XZ-DT254H enters setup mode, and the serial port outputs OK at this time
Format + + +
Return OK
4.2 Set Channel 0 Frequency
Format >WF0/RX:453.25000/TX: 453.25000
Return
Explain >WF0 means working frequency when writing channel 0
RX: means receiving frequency453.25000 MHz ,please notice frequency needs to be accurate to 5 digits after the decimal point；
TX: means transmitting frequency 453.25000 MHz , please notice frequency needs to be accurate to 5 digits after the decimal point；
XZ-DT254H receiving and transmitting frequency range：420 ~ 480MHz, the same XZ-DT254H receiving and transmitting frequency settings can be the same or different, but modules in the same communication system must have the same receiving and transmitting frequency then they can communicate.
4.3 Baud Rate Setting
Format >WBA
Return
Explain >WB means interface baud rate
A~E means 1200~115200bps；A=1200、B=2400、C=4800、D=9600、E=19200、F=38400、H=115200 4.4 Parity Bits Setting
Format >WVN
Return
Explain >WV means Interface Parity Bit
N、E、O means 8N1、8E1、8O1
4.5 Emission Power Level Setting
Format >WP3
Return
Explain > WP means writing power level
1、2、3 means 0.5W、1W、2W
4.6 Read all Parameters Command
Format >WP3
Return
Explain Output XZ-DT254H current working parameters
4.7 Exit Setup Mode
Format >WE
Return OK
XZ-DT254 exit setup mode，even if XZ-DT254H enter setup mode it will exit when it does not have any command actions at continuous 10S.
5 Technical Parameters:
Frequency Range | 420～480MHz | |
Frequency stability | ≤±2.5PPm | |
Transmit Power | 2W(33dBm) | |
Modulation | GFSK | |
RF Data Rate | 1200～115200bps | |
Interface | RS232&RS485(TTL customized) | |
Power Supply | 5V@2A(8～36V customized in factory) | |
Interface Data Format | 8E1/8N1/801 | |
Transmission Distance | 3km-5km line of sight (if Antenna is put at above 2m height) | |
Receiving Sensitivity | -123dBm@1200bps/106dBm@115200bps | |
Channel Bandwidth | 10KHZ@1200bps/200KHZ@115200bps | |
Working Temperature | -40℃～80℃ (industrial grade) | |
Working Humidity | 10% to 90% relative humidity, no condensation | |
Emission Current | ≤1500mA | |
Receiving Current | ≤50mA | |
Dimension(L/W/H) | 86 X 45 X 20 mm | |
Weight(g) | ≤80g | |
OEM wireless solutions are supportable.Welcome to contact me Sarah if have any queastions. sales(at)thingsend(dot)com
