RS485/RS232 Half-duplex Wireless Data Transmitter/Receiver Modem
USD $200 - $400 /Set
Min.Order:1 Set
| name | Description | level | remark |
1 | GND | GND | 5V |
|
2 | A(TXD) | RS-485 A or TXD of RS-232 |
|
|
3 | B(RXD) | RS-485 B or RXD of RS-232 |
|
|
4 | NC |
|
|
|
5 | DGND | DGND |
|
|
6 | RXD/TTL | Data receive(TTL level) | TTL |
|
7 | TXD/TTL | Data transmit(TTL level) | TTL |
|
8 | -- | -- |
|
|
9 | Test | Internal test |
|
|
Specification:
Frequency: 230MHz/400MHz/420MHz/450MHz
Frequency stability: ±2.5ppm;
Working mode:Half-duplex
Channel spacing: 25 kHz;
Bit rate:1200/2400/4800/9600/19200bps (option)
Channel rate:1200/2400bps (option)
Transceiver conversion time:<50ms
Receiving sensibility: -117dBm(2400bps)
Working temperature:-40~+80℃; (industrial grade)
Working humidity:10% ~ 90% relative humidity, no condensation
Data format:8E1/8N1/801(other format also available,for example:9 data bits)
Power supply: DC12V(can also custom made according to your request).
Transmission distance: 12Km(matched with magnetic antenna in open air,1.5m length)
Dimension: 85x58x16mm (without radiator);
Receiver technical index:
Receiving sensibility: ≤0.25μV ( 12dB SINAD)
Adjacent channel selectivity: ≥70dB
Intermodulation suppression: ≥65dB
Spurious and image rejection: ≥70dB
Audio output power : 0.5W(8Ω,10% distortion)
Receive distortion:≤3%
Receiver current:≤ 50mA
Dimension:85x58x16mm
Transmitter technical index:
Transmit output power: 5W
Transmit current:<1.5A
Sleep current: <1mA
Clutter and images rejection: ≥70dB
Spurious Response: ≥70dB
Modulation frequency offset:≤3%
Modulation distortion:5mV
Modulation sensibility:≤300mA
Size: 85x58x16mm