CC3200 2.4GHz RS232 RS485 WiFi Serial Server 20dBm Module
Meet the CC3200 2.4GHz RS232 RS485 WiFi Serial Server 20dBm Module — a compact, robust gateway that turns any RS232 or RS485 serial device into a wireless node on your WiFi network. With a 2.4 GHz transceiver, 20 dBm output, and 802.11 b/g/n support, this module enables reliable remote monitoring and control for industrial, automation, or building-management applications. The small 82 x 62 x 25 mm enclosure houses RS232/RS485 interfaces, a DB-9/screw-terminal package, and a wide 8–28 V DC power supply, making it easy to retrofit legacy devices to modern networks. The E103-W02-DTU from CDEBYTE supports up to 65,536 configurable addresses and a test distance up to 300 meters in open air, ideal for long-range sensor networks. Built to operate from -40°C to 85°C and up to 90% humidity, it’s designed for harsh environments while keeping installation straightforward.
Benefits & Tips
- Turn legacy RS232 or RS485 devices into a wireless WiFi node for remote monitoring and control across your network.
- Leverage long-range capability (up to 300 meters in open air) with the 2.4 GHz band and external SMA-K antenna for reliable coverage.
- Plan large deployments with 65,536 configurable addresses to organize devices by site, zone, or function.
Product specifications
- Working frequency: 2402–2484 MHz (default 2.4 GHz)
- Transmitting power: 20 dBm (~100 mW)
- WiFi version: 802.11 b/g/n
- Test distance: 300 meters (open air, 3 dBi antenna, 2 m height)
- Size: 82 × 62 × 25 mm
- Antenna type: SMA-K, 50 Ω external impedance
- Interface: RS232 / RS485
- Package: DB-9 / Screwing
- Power supply: 10–28 V DC (typical 12 V)
- Transmitting current: 70–84 mA (typ 77 mA) at 20 dBm
- Stand-by current: 13–15 mA
- Operating temperature: -40°C to +85°C
- Operating humidity: 10%–90%
- Storage temperature: -40°C to +125°C
- Model: E103-W02-DTU
- Origin: Mainland China
- Addresses: 65,536 configurable addresses
Package Includes
- 1 x CC3200 2.4GHz RS232/RS485 WiFi Serial Server Module (Model E103-W02-DTU)
Warnings / Reminders
- Provide power within 10–28 V DC; avoid exceeding the recommended range.
- Operate within the specified temperature (-40°C to +85°C) and humidity (10%–90%).
- Comply with local RF regulations for 20 dBm transmit power on 2.4 GHz; use in approved environments.
- Connect RS232/RS485 correctly; RS485 requires proper line biasing and termination as per your device.
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| RF Parameter | Value | Remark |
| Working frequency | 2402~2484 MHz | Default: 2.4GHz |
| Transmitting power | 20 dBm | About 100mW |
| WiFi version | 802.11 b/g/n |
|
| Test distance | 300 meter | In open and clear air, with maximum power, 3dBi antenna gain, height of 2m |
| Hardware Parameter | Value | Remark |
| Size | 82 * 62 * 25 mm |
|
| Antenna type | SMA-K | 50Ω characteristic impedance, external thread |
| Communication interface | RS232 / RS485 |
|
| Package | DB-9 / Screwing |
|
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 10 | 12 | 28 | V |
|
| Transmitting current | 70 | 77 | 84 | mA | 20dBm(100mW) |
| stand-by current | 13 | 14 | 15 | mA |
|
| Operating temperature | -40 | 20 | +85 | ℃ |
|
| Operating humidity | 10 | 60 | 90 | % |
|
| Storage temperature | -40 | 20 | +125 | ℃ |
|
Please note: All electronic and mechanical equipment, devices and machines sold to EU countries are CE certified and carry a two year warranty.