VHF/UHF Ethernet Data Radio Modems

Split Port Radio for Leaky Feeders

 

Features

  • Transparent IP links using TCP/IP Gateway feature
  • Diagnostics and configuration using Cruise Control or AT commands over LAN
  • Fast polling facilitating low latency data streams and effective bandwidth utilisation
  • Modbus over IP support
  • Protocol addressing and routing support, DNP-3, Modbus and IEC 870 compatibility
  • Auto-negotiating 10BASE-T and 100BASE-TX Half and Full-duplex Ethernet
  • Operating voltage 9 to 30 VDC
  • I/O support option (4 x Analogue 4-20mA, Digital 0-5V or Relay dry contact)
  • VF Audio-driven option
Radio Network Packet Protocol

Applications

The Crescendo series is suited for applications in Utilities, Mining, Agriculture and Transport industries where reliable long distance data transfer is critical.

The data radio can be used in small or large scale telemetry systems, with almost any PLC, RTU, HMI or DCS vendor for monitoring and control of critical assets.

Telemetry applications include pipeline monitoring, pump station and tank control, irrigation, fan and pressure control, and environmental monitoring.

The radios are also used in complex GPS systems for fleet tracking and management, and high precision correctional systems for machine control and automation.

Specifications

Switching Bandwidth    The user can select any 6.25kHz raster frequencies with the easy-to use inbuilt menu or Windows configuration software.
Data Reliability    User selectable Automatic Repeat Request (ARQ) offers a high level of data reliability. The immediate re-transmission of data ensures that the user will not encounter end-to-end errors or data loss even in hostile environments.
Diagnostics at a Glance    The front panel LEDs display diagnostic information indication such as Receive Signal Strength (RSSI), transmit power, radio temperature and RS232 port status.
Data Mode Options    With data and frame-driven modes available, the Ethernet Crescendo supports point-to-point, point-to-multipoint, Hayes Dial-up and multiple modes of communication.
Easy Network Management    The user is able to view diagnostics and change the settings of other remote radios within a network from a single point.
Data Integrity    Over the air data is encapsulated with Forward Error Correction, data interleaving and Cyclic Redundancy Checksums (CRC) for high level data protection.
Easy Network Configuration    The Cruise Control software allows the user to configure, save and upload radio configuration settings. This allows for multiple radios to be configured more efficiently.
   

PHYSICAL
Dimensions: 188mm x 102mm x 47mm
Weight: 800g
Construction: Powder coated aluminium

MODEM
Serial Data: RS-232 Asynchronous with handshaking
Interface Speed: 300bps to 115200bps software selectable
Error Rate:-104 dBm for less than 1x10-6 BER (9600bps)
-102 dBm for less than 1x10-6 BER (19200bps)

GENERAL
Operating Voltage: 9V to 30V DC (negative ground)
Operating Current:
- Transmit @12V 1.7A nominal @ 5W
- Receive @12V 1A nominal
Operating Temp: -10 to + 60 deg C (-30 to +70 deg C version available in both VHF & UHF)
Operating Humidity: Up to 95% non-condensing relative humidity

      

CONNECTORS
Antenna: BNC Female (50 Ohm), Dual BNC for Split Tx/Rx port option
Ethernet port: RJ45 (Straight through)
Serial: 2 x DB9 RS-232 Female
Power: Phoenix PH1776508 (mating connector supplied)

RADIO
Frequency Range:
VHF: 148 MHz to 174 MHz software programmable
UHF: 380 MHz to 520 MHz 
Air Data Rate: 19.2 kbps (25 kHz channel), 9.6 kbps (12.5 kHz channel)
Duty Cycle: 100%
Channel Bandwidth: 12.5kHz or 25kHz (model specific)
Compliance: Designed to ACA, ETSI (planned) and FCC
Modulation: Nyquist-shaped 4-level FSK
Tx key up Time: less than 1mS
Data Turn-around Time: <10mS
Transmit Power: 1.0mW (0dBm) to 5W (+37dBm)
Mode of Operation: Single-port half duplex, Split-port half duplex

      

VHF OPTIONS
RFI-150 HWHE: Ethernet Enabled Crescendo VHF, Half Duplex, Wide Band, 19200bps
RFI-150 HNME: Ethernet Enabled Crescendo VHF, Half Duplex, Narrow Band, 9600bps
RFI-150 SWHE: Ethernet Enabled Crescendo VHF, Split Antenna Port, Half Duplex, Wide Band, 19200bps
RFI-150 SNME: Ethernet Enabled Crescendo VHF, Split Antenna Port, Half Duplex, Narrow Band, 9600bps

UHF OPTIONS
RFI-450 HWHE: Ethernet Enabled Crescendo UHF, Half Duplex, Wide Band, 19200bps
RFI-450 SWHE: Ethernet Enabled Crescendo UHF, Split Antenna Port, Half Duplex, Wide Band, 19200bps
RFI-450 VF HWHE: Ethernet Enabled VF Crescendo UHF, Half Duplex, Wide Band, 19200bps
RFI-450 VF HNME: Ethernet Enabled VF Crescendo UHF, Half Duplex, Narrow Band, 9600bps
RFI-450 SNME: Ethernet Enabled Crescendo UHF, Split Antenna Port, Half Duplex, Narrow Band, 9600bps
RFI-450 HNME: Ethernet Enabled Crescendo UHF, Half Duplex, Narrow Band, 9600bps

 
RFI-450 E Product Brochure  Quotation