AVT MAGIC AC1, Руководство по аппаратному и программному обеспечению

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PAGE 57
W i n d o w s P C S o f t w a r e
5.7.2.1.2 Data Interfaces
Under Data Interfaces you can configure the two available data interfaces
which allow a transmission of transparent data in parallel to the Audio signal.
FIG. 31 CONFIGURATION OF THE DATA INTERFACE
The configuration options for
Data Interface 1
and
Data Interface 2
are idet-
ical. The parameters must match with the settings of the corresponding data
source.
• Via the dropdown list Mode you can select the interface type RS232 or
RS485 .
The RS232 interface can be used with a maximum cable length of 15m and
is available at many data end devices. The transmission is unsymmetrical,
i.e. only one wire is used for the transmit and one for the receive channel.
The procedure is more interference-prone and limits the maximum cable
length.
In contrast to this, the RS485 interface works with symmetrical transmis-
sion (one pair of wires each for transmit and receive direction), whereby
the transmission is less interference-prone and cable lengths of maximum
100m are possible.
• As baud rate the values 300 , 1200 , 2400 , 4800 , 9600 , 19200 and 38400 can
be adjusted.
• Under Parity you select the desired parity: None , Even or Odd .
• The number of the Stop Bits can be set to 1 or 2 .
• The number of the Data Bits can be set to 8 or 9 .
NOTE
It depends on the selected Audio
Transmission Mode
(see
CHAPTER Fig. 35) if a data transmission is possible.