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China WD889/WD250 Multi Channel FM Transceiver & Wireless Modem - Reliable Suppliers & Factory Options Available
WD889:25W Size: (L x W x H)137x135x44mm
WD250:20W Size: (L x W x H)124.7x76x34mm
MD1200 MODEM
- Data transmission mode:Transparent
- Modulation mode:FSK (f1=1.3KHz f2=2.1KHz)
- Transmission rate:75-1200bps self-adaption
- BER:10-7(S/N=20dB)
- Communication interface:RS232/RS485/TTL
- Temperature:-40℃～+70℃
- Voltage:DC+7～+15V or +5V
- Current:RS232: <30mA; RS485: <60mA
- Installation size:59.5x39.3mm
- Adapter model:250A/WD889/WD886 etc.
MD4800 MODEM
- Data transmission mode:Transparent/Intelligent
- Modulation mode:FFSK
- Wireless transmission rate:1200/2400/4800bps
- Interface transmission rate:1200/2400/4800/9600bps
- Address code/Data format:Programmable setting
- BER:10-7(S/N=20dB)
- Communication interface:RS232/RS485/TTL
- Temperature:-40℃～+70℃
- Voltage:DC+7～+15V or +5V
- Current:RS232: <30mA; RS485: <60Ma
- Installation size:59.5x39.3mm
- Adapter model:250A/WD889/WD886 etc.
MD19200 MODEM
- Data transmission mode:Transparent/Intelligent
- Modulation mode:GMSK/CPFSK
- Wireless transmission rate:9600/19200bps
- Interface transmission rate:1200/2400/4800/9600/19200bps
- Address code/Data format:Programmable setting
- BER:10-7(S/N=20dB)
- Communication interface:RS232/RS485/TTL
- Temperature:-40℃～+70℃
- Voltage:DC+7～+15V
- Current:<40mA
- Size (L x W):60x50mm
- Adapter model:250A/889/886/250G/258G etc.
MD38400 MODEM
- Data transmission mode:Transparent/Intelligent
- Modulation mode:GMSK/CPFSK
- Wireless transmission rate:38400bps
- Interface transmission rate:38400bps
- Address code/Data format:Programmable setting
- BER:10-7(S/N=20dB)
- Communication interface:RS232/RS485/TTL
- Temperature:-40℃～+70℃
- Voltage:DC+7～+15V
- Current:<40mA
- Size (L x W):60x50mm
- Adapter model:250A/889/886/250G/258G etc.
Frequently Asked Questions
What communication interfaces do these MD series modems support?
The MD series modems (including MD1200, MD4800, MD19200, and MD38400) support RS232, RS485, and TTL communication interfaces, ensuring high compatibility with various industrial systems.
What are the supported data transmission modes?
The MD1200 modem supports Transparent data transmission mode. The MD4800, MD19200, and MD38400 modems support both Transparent and Intelligent data transmission modes.
What is the working temperature range for these industrial modems?
All models are designed for harsh industrial environments and can reliably operate in a wide temperature range from -40℃ to +70℃.
What voltage supply is required for the MD series modems?
The MD1200 and MD4800 modems operate on DC +7V to +15V or +5V. The MD19200 and MD38400 modems operate on DC +7V to +15V.
Which adapter models are compatible with these modems?
Depending on the model, they are compatible with adapters such as the 250A, WD889, WD886, 250G, and 258G. Check the specific product specifications for exact compatibility.
What modulation modes do these modems use?
The MD1200 uses FSK modulation, the MD4800 uses FFSK modulation, and the MD19200 and MD38400 models use GMSK/CPFSK modulation modes.