Siemens AC75 User Manual
Page 27
AC75 AT Command Set
1.6 Serial Interface Flow Control
s
AC75_ATC_V01.002
Page 27 of 569
10/30/06
Confidential / Released
of data, data throughput, reaction time of the application when handling the buffer, processor performance
and available memory. To give an example, a small buffer size (such as 256 bytes) increases the frequency
of deactivating RTS/CTS and the frequency of flushing the buffer, thus diminishing the efficiency of the appli-
cation.
Also, please consider that RTS/CTS flow control cannot stop the data stream coming from the network, e.g.
in a GPRS or fax connection. So the lack of appropriate hardware flow control increases the risk of losing data
packets if, like in the case of UDP, the connection protocol has no or only minimum error handling functions.
Other network protocols are using high level flow control mechanisms. For example, to prevent loss of data
the TCP protocol uses retransmission algorithms, fax applications usually repeat the transfer of faulty pages.
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- CX65
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- A65
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- Mobile Phone C35i
- 4110
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