Wikipedia:
Stop bits sent at the end of every character allow the receiving signal hardware to detect
the end of a character and to resynchronise with the character stream.
Idle [bytes]
Default = 5 [0 - 2000]
This parameter defines the maximum gap (in bytes) in the received data stream. If the gap exceeds
the value set, the link is considered idle, the received frame is closed and forwarded to the network.
MRU [bytes]
Default = 1600 [1 - 1600]
MRU (Maximum Reception Unit) — an incoming frame is closed at this size even if the stream of bytes
continues. Consequently, a permanent data stream coming to a COM results in a sequence of MRU-
sized frames sent over the network.
Note 1:
very long frames (>800 bytes) require good signal conditions on the Radio channel and the
probability of a collision increases rapidly with the length of the frames. Hence if your application can
work with smaller MTU, it is recommended to use values in 200 – 400 bytes range.
Note 2:
this MRU and the MTU in Radio settings are independent. However MTU should be greater
or equal to MRU.
Flow control
List box: None, RTS/CTS
Default = None
RTS/CTS (Request To Send / Clear To Send) hardware flow control (handshake) between the DTE
(Data Terminal Equipment) and RipEX (DCE - Data Communications Equipment) can be enabled in
order to pause and resume the transmission of data. If RX buffer of RipEX is full, the CTS goes down.
Note:
RTS/CTS Flow control requires a 5-wire connection to the COM port.
Protocol*
List box: possible values
Default = None
Each SCADA protocol used on serial interface is more or less unique. The COM port daemon performs
conversion to standard UDP datagrams used in RipEX Radio network. Each protocol has its individual
configuration parameters, which are described in separate Help page (accessible from configuration
light box Protocol - click on Protocol, then on Help). Protocol “None” simply discards any data received
by the COM port or from the network, which means that the respective COM port is virtually disconnected
from the RipEX.
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© RACOM s.r.o. – RipEX Radio modem & Router
Advanced Configuration
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