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12; Advanced features
CTS used in hardware flowcontrol:
This is an alternative to the XON/XOFF flowcontrol. When using
the modem for transferring binary files, the XON/XOFF protocol
can't be used, because XON/XOFF may be included in the data.
The table below will show the set up which may be done with
command or from display at front.
"=| Unidirectional local flowcontrol.
The modem sets V.24 signal 106
CTS) OFF when the receive buffer
" 1 from DTE has accumulated 1400
bytes, defined in +S20.
CTS is turned on when the number of
-'lbuffered characters is reduced to
©1600, defined by +520. There is no
flowcontro! on data sent to DTE.
' | Bidirectional local flowcontrol using
RTS/CTS.
Flowcontrol on received
data from DTE is as for \Q2.
Flowcontro! on transmitted data to
DTE.
DTE sets V.24 signal RTS Off if
it is not capable of receiving any
more characters from the modem.
The modem will stop data
transmission to DTE until RTS is
_.s=|
turned On again. Data from line is
{buffered in a 1500 byte buffer.
OPTION 2
OPTION 3
"Read more about flowcontro! in chapter 8
"Flowcontrol and buffering".
LZTR104006 R1.00
12-15
Zat 14.4/14.4-7 and 19.2/19.2-7
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