High-Quality WD889/WD250 Multi Channel FM Transceiver & Wireless Modem Suppliers, Factories

Product Description

WD Series Power Modules
WD889 Power Module
WD889
Power: 25W
Size (L x W x H): 137 x 135 x 44 mm
WD250 Power Module
WD250
Power: 20W
Size (L x W x H): 124.7 x 76 x 34 mm
MD Series Wireless Modems
MD1200 MODEM
MD1200 MODEM
Data Mode: Transparent
Modulation: FSK (f1=1.3KHz f2=2.1KHz)
Transmission Rate: 75-1200bps self-adaption
BER: 10-7 (S/N=20dB)
Interface: RS232 / RS485 / TTL
Temperature: -40°C ~ +70°C
Voltage: DC +7V ~ +15V or +5V
Current: RS232: <30mA; RS485: <60mA
Installation Size: 59.5 x 39.3 mm
Adapter Model: 250A / WD889 / WD886 etc.
MD4800 MODEM
MD4800 MODEM
Data Mode: Transparent / Intelligent
Modulation: FFSK
Wireless Rate: 1200 / 2400 / 4800 bps
Interface Rate: 1200 / 2400 / 4800 / 9600 bps
Format: Programmable Address / Data Format
BER: 10-7 (S/N=20dB)
Interface: RS232 / RS485 / TTL
Temperature: -40°C ~ +70°C
Voltage: DC +7V ~ +15V or +5V
Current: RS232: <30mA; RS485: <60mA
Installation Size: 59.5 x 39.3 mm
Adapter Model: 250A / WD889 / WD886 etc.
MD19200 MODEM
MD19200 MODEM
Data Mode: Transparent / Intelligent
Modulation: GMSK / CPFSK
Wireless Rate: 9600 / 19200 bps
Interface Rate: 1200 / 2400 / 4800 / 9600 / 19200 bps
Format: Programmable Address / Data Format
BER: 10-7 (S/N=20dB)
Interface: RS232 / RS485 / TTL
Temperature: -40°C ~ +70°C
Voltage: DC +7V ~ +15V
Current: <40mA
Size (L x W): 60 x 50 mm
Adapter Model: 250A / 889 / 886 / 250G / 258G etc.
MD38400 MODEM
MD38400 MODEM
Data Mode: Transparent / Intelligent
Modulation: GMSK / CPFSK
Wireless Rate: 38400 bps
Interface Rate: 38400 bps
Format: Programmable Address / Data Format
BER: 10-7 (S/N=20dB)
Interface: RS232 / RS485 / TTL
Temperature: -40°C ~ +70°C
Voltage: DC +7V ~ +15V
Current: <40mA
Size (L x W): 60 x 50 mm
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 multiple communication interfaces, including RS232, RS485, and TTL, allowing for versatile integration with various industrial systems.
What is the operating temperature range for these industrial modems?
All listed MD series modems are designed for harsh industrial environments and feature a wide operating temperature range of -40°C to +70°C.
What is the difference in data transmission modes between the models?
The MD1200 modem operates strictly in Transparent data transmission mode. The higher-speed models, including MD4800, MD19200, and MD38400, support both Transparent and Intelligent data transmission modes.
What power supply voltage is required for these modems?
The MD1200 and MD4800 modems require a voltage of DC +7V to +15V or +5V. The MD19200 and MD38400 modems operate on a standard DC +7V to +15V power supply.
Which adapter models are compatible with the MD series modems?
Depending on the specific modem model, they are compatible with adapters such as the 250A, WD889, WD886, 250G, and 258G. Please refer to each model's specifications for exact compatibility.

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