RNO

At the heart of the NetMan system are a range of digital data Radio Network Outstation (RNO’s). This is an intelligent data radio modem, which communicates with either the NetMan RTU (in order to collect or transmit digital commands), an analogue input unit (which monitors up to 8 analogue input channels) or an external DNP3 device. In built diagnostics allows the user to test the bit error rate (BER) of any radio path, either during commissioning or during maintenance. All of these devices operate through a NetMan-FSS data concentrator fitted with an digital data Radio Network Concentrator (RNC’s). Each RNO data radio has a unique repeating function allowing the user to cover very large/wide geographical areas without any additional infrastructure cost.

Currently we have a number of NetMan radio network outstations. These are:

RNO 101
An integrated digital data radio, designed to control one switching device such as an air-break switch actuator. It is a combined digital data radio modem, RTU and operator panel. It still offers all the wide area multi-repeating capability characteristic of the NetMan range and can support 2 digital outputs and 8 digital inputs.

RNO 301
An integrated digital data radio, for control and monitoring of multiple switches, designed to work with 1 to 3 extensible RTU-16D cards and support 8 analogue input channels. Each RTU-16D card can support 16 digital inputs and 16 digital outputs, giving the RNO 301 a maximum I/O count of 48DI, 48DO.

RNO 401
 An integrated digital data radio, for control and monitoring of multiple switches, designed to work with 1 to 3 extensible RTU-16D card and support a serially connected DNP3 slave device. The slave DNP3 device is connected transparently back to the main NetMan-FSS data concentrator and can be polled separately to the digital IO. Each RTU-16D card can support 16 digital inputs and 16 digital outputs, giving the RNO 301 a maximum I/O count of 48DI, 48DO.

RNO 501
An integrated digital data radio, designed to work  directly with a slave DNP3 device. In order to reduce the lengthy DNP3 data messages on air, the RNO 501 communicates continually with the slave DNP3 device and sends compressed telegrams over the air to the data concentrator (the NetMan-FSS). At the data concentrator, the telegrams can be converted back in to DNP3 or in to other SCADA protocols, such as IEC870, RP570 etc.