RDF-L-ETH (Light - Ethernet TCP/IP)

RDF-L-ETH is the low cost data collection equipment designed to serve secondary and small transmission and reception sites where you have a DSL connection. It’s the heart and the hands of the Garda remote control system. Uncompromised reliability, versatility and small price are RDF-L-ETH main characteristics.
RDF-L-ETH is the ideal solution whenever you have a reduced number of physical data and controls to manage, and you have a DSL connection on site.
RDF-L-ETH, targeted at small broadcasting installations, manages a limited amount of physical I/O : nr. 8 analog inputs (8 or 10 bit resolution), nr. 8 digital inputs (on-off) and nr. 8 relays (digital output). They are configurable, both locally and remotely, and are programmable to generate alarms or run simple routines, called macros. Furthermore, the I/O state can be read, both on site and remotely, at any time.
The analog inputs have 6 programmable thresholds: 2 for alarms, 2 for pre-alarms and 2 for history.
Contact closure inputs can be set as open or closed.
Alarms are sent immediately to the control center software, the NetPOD, which will activate warning procedures via SMS, phone calls, and e-mail according to timelines, responsibility, area, etc. Should the control center not be momentary in reach of the remote system, the embedded memory will store a queue of 500 alarms to grant the RDF with a long off-line autonomy.
The connection to the control center can use a number of media, taking advantage of two serial ports plus a MSK modulator/demodulator.
RDF is equipped with a main connection route and one or more backup routes: this feature is unbeatable in harsh environments, like remote broadcast sites, where very bad weather conditions or very long distance may disrupt the communication.
One very special communication media is the UHF/VHF radio, when the RDF becomes a store and forward unit. It is practically a router for the next … and the next… and the next…RDF. Each unit acts as a front-end plus a communication unit.

Ethernet capability with high reliability at reasonable cost

COMMUNICATION MEDIA

• TCP/IP Ethernet 10/100 (*)
• RS232 half or full duplex up to 57kbaud asynchronous (*)
• GSM modem (M2M)
• PSTN modem
• Wireless UHF with ‘store and forward’ mode
• Wireless VHF with ‘store and forward’ mode
• Dedicated audio channel, mono and bidirectional (radio links)
• Modem baseband (4 wires)
• GPRS modem
• CDMA modem

NB (*) This media will always be present

BACKUP COMMUNICATION MEDIA

NB Backup not available in low cost series

BASE UNIT CHARACTERISTICS

• N° 8 analog inputs w/ 8 or 10 bit resolution, input voltages from 0 to 5 VDC
• N° 8 optically isolated digital inputs 5mA (max 24V) w/ selectable polarity
• N° 8 single state output relay, max current 1A @ 24 VCC
• N° 6 internal inputs for auto diagnostic purposes
• N° 1 RS232 port for general purposes or modem connection
• N° 1 RS232 for PC connection
• N° 1 Ethernet 10/100 port

EXPANDIBILITY

NB On low cost series the RS485 is not available, so it isn’t possible to expand and to connect the RDF with other devices or RS485 cards