RK210 Digital System

The RK210 is a multi-purpose digital system which Elber has developed in order to offer different and flexible solutions for the transport of streams over microwave links. It is composed of a standard chassis which can house up to four plug-in boards.
The RMX4 plug-in board is an ASI aggregator, which accepts up to 4 input signals, assigns each input to a transport channel and generates a proprietary composite ASI signal at the output. The maximum number of channels is 8, and the maximum output bitrate is 210 Mbit/s.
To obtain the original signals, a DMX4 plug-in board will be used; it is an ASI de-aggregator, which accepts a proprietary composite ASI signal as input and gives back the DVB-ASI original streams.
For microwave link 1+1 in frequency diversity configuration, a hitless switch system has been developed; it needs an ASID4 board at the transmitting site and a HS210 board at the receiving site.
The ASID4 receives a ASI signal and inserts some time mark on output A and B; these marks will be used and removed by the HS210 to align the two streams and make the correct switch without losing any data.
The ASID4 acts also as a ASI distributor on output C and D.
The AS-02 board is an intelligent ASI switch which is used in hot standby configurations. Every input is powered by the respective receiving chain (Receiver + Demodulator); in the case of equipment power supply failure, a relay will drive the main signal (input A) at the output. In normal conditions, the switch is performed on the basis of the identification of the stream through a PID.
The structure of the RK210 system led Elber, on customers' request, realize other boards converting any kind of signal into a composite ASI stream and transport it over its microwave link.
Programming and monitoring of the main parameters, could be done through local interface (keypad and display interface on the front panel), and remotely (RS485 interface or Ethernet).