Radio modem 429 MHz RS-232/RS-485 ICP DAS RFU-400

Thương hiệu: Hexin | Tình trạng: Còn hàng
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RFU-2400 CR 2.4 GHz RS-232/RS-485 Wireless Modem (RoHS)

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Radio modem 429 MHz RS-232/RS-485 ICP DAS RFU-400

Features

  • 429 MHz Radio Frequency

  • 16 RF Channels

  • 4 RF Baud Rates

  • Includes a PA switch that can be used to enhance the RF power

  • Wireless line of sight (LOS) transmission range of up to 1000 meters at an RF Baud Rate of 9600 bps

  • Transparent transmission mode

  • Provides Baud Rates from 1200 to 115200 bps for both the RS-232 and RS-485 interfaces

  • ESD Protection: Contact +/-4 kV

  • Isolation: 3000 VDC for DC-to-DC, 2500 Vrms using a photocoupler

  • DIN-Rail Mountable

  • Operating Temperatures, -25 °C ~ +75 °C

Introduction

The RFU-400 is an RS-232/RS-485 to 429 MHz radio modem that can be used to convert data from an RS-232/RS-485 device to an RF message that can then be transmitted in transparent mode via the 429 MHz ISM frequency band. The RFU-400 provides a maximum line of sight (LOS) transmission distance of 1000 meters (1 km) at an RF Baud Rate of 9600 bps. In order to overcome the interference that may be encountered in harsh environments, the RFU-400 allows the RF transmission Baud Rate to be configured to a minimum of 650 bps, enhancing the capability of the modem to resist noise and other interference. Additionally, the RF channels and Group IDs are adjustable, which is helpful when attempting to avoid interference encountered when two RFU-400 networks are adjacent. The 16 RF channels and 8 Group IDs can be configured in order to distinguish and control the different RFU-400 networks. The majority of these configuration parameters can be adjusted using a combination of the Rotary and DIP switches, thereby providing a simple method of maintaining the system if the RFU-400 modem needs to be replaced.

Application

Specification

RF Interface

Radio Frequency

Channel 0 ~ 9 : 429.8125 MHz ~ 429.9250 MHz
Channel A ~ F: 429.1750 MHz ~ 429.2375 MHz

Baud Rate

115200 bps, 38400 bps, 9600 bps, 650 bps

Transmission Power

PA Off : 10 dBm , PA On : 19 dBm

Antenna

0 dBi Omni directional

Transmission Distance (LoS)

1000 m (at 9600 bps RF Rate)

Group ID

0 ~ 7

Protocols

Transparent transmit

Temporary Buffer Size

512 Bytes

Configuration

Rotary and DIP switch

COM Port Interface

RS-232

TxD, RxD and GND

RS-485

D+, D- ; 3000 VDC for DC-to-DC

Baud Rate (bps)

1200 ~ 115200

Data Format

N81, E81, O81

LED Indicators

RF_Tx

Green

RF_Rx

Yellow

PWR

Red

Isolation

Intra-module Isolation

2500 Vrms for photocoupler (RS-485/RS-232 side)

EMS Protection

ESD

+/- 4 kV Contact

EFT

+/- 1 kV

Surge

+/- 1 kV

Power

Input Voltage Range

+10 VDC ~ +30 VDC

Power Consumption

1 W (Max.)

Mechanical

Flammability

Fire Retardant Materials

Dimensions (W x L x H)

108 mm x 84 mm x 33 mm ( not include antenna )

Antenna Dimensions (L x Ø)

108 mm x 10 mm

Installation

DIN-Rail

Environment

Operating Temperature

-25 °C ~ +75 °C

Storage Temperature

-30 °C ~ +80 °C

Relative Humidity

10 ~ 90% RH, Non-condensing

Download

Manual

Data sheet

Odering information

RFU-400 CR

RS-232 / RS-485 to 429 MHz Radio Modem (RoHS)

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