4RF Aprisa SR+ User Manual - page 124
122 | Managing the Radio
Aprisa SR+ User Manual 1.5.3
Flow Control
This parameter sets the flow control of the serial port. The default setting is Disabled.
Option
Function
None
The Aprisa SR+ radio port (DCE) CTS is in a permanent ON (+ve)
state.
This does not go to OFF if the radio link fails.
CTS-RTS
CTS / RTS hardware flow control between the DTE and the Aprisa
SR+ radio port (DCE) is enabled.
If the Aprisa SR+ buffer is full, the CTS goes OFF.
In the case of radio link failure the signal goes to OFF (-ve) state.
In terminal server mode, the serial packet is no different from an Ethernet packet and travels through
various packet queues before being transmitted over the air. Thus, the serial flow control has no affect in
terminal server mode.
Inter-Frame Gap (chars)
This parameter defines the gap between successive serial data frames. It is used to delimit the serial data
to define the end of a packet. The Inter-Frame Gap limits are 0 to 20 chars in steps of 0.1 char. The
default setting is 3.5 chars.