RACOM RipEX - Page 122

○ Flexible //Operating mode = Router
Router mode with Flexible protocol is suitable for Multipoint networks of all topologies with un-
limited number of repeaters on the way, and all types of network traffic where Multi-master ap-
plications and any combination of simultaneous polling and/or report-by-exception protocols can
be used.
Each RipEX can access the Radio channel spontaneously using sophisticated algorithms to
prevent collisions when transmitting to the Radio channel. Radio channel access is a proprietary
combination of CSMA and TDMA; the Radio channel is deemed to be free when there is no
noise, no interfering signals and no frames are being transmitted by other RipEX stations. In
this situation a random selection of time slots follows and a frame is then transmitted on the
Radio channel.
Frame acknowledgement, retransmissions and CRC check, guarantee data delivery and integrity
even under harsh interference conditions on the Radio channel
NOTE: The Flexible protocol was the only Radio protocol used in the RipEX with Router mode
for fw ver. lower than 1.6.x.x (1.5.7.0).
Italicised parameters are described in Common parameters.
Mode
Modulation type
Modulation rate
FEC
ACK
Retries
RSS threshold [-dBm]
RipEX Radio modem & Router – © RACOM s.r.o.122
Advanced Configuration