Configuring An Ascii Output - Spectracom VersaSync User Manual

3.
2.6.4.4

Configuring an ASCII Output

About the ASCII Format Outputs
The ASCII outputs (ATC = ASCII Time Code) provide VersaSync with the ability to output one,
two or three back-to-back ASCII time code data streams that can be provided to peripheral
devices which accept an ASCII RS-232 or RS-485 input data stream for either their external
time synchronization or for data processing. See "Time Code Data Formats" on page 246 for
a description of all supported time code formats.
The RX signal on an output interface is used for triggering the output ASCII message output
when a configured character is received from the peripheral device.
When VersaSync is configured to output only one format message (the second and third
formats configured as "None"), the one configured message will be available on the output
port as either a broadcast message or only upon a request character being received. Ver-
saSync has the ability to output one or two additional data stream messages immediately fol-
lowing the first message. In this configuration, only the first message determines the on-time
point for the entire output string. The on-time points for the second and third messages that are
provided at the same time as the first message are discarded. This unique capability allows Ver-
saSync to be able to simultaneously provide multiple pieces of data from different selected
format messages.
An example of selecting multiple formats is selecting "NMEA GGA" as the first format, "NMEA
RMC" as the second format and "NMEA ZDA" as the third format. Depending on the setting of
the "Mode" field (which determines if the data streams are available every second or upon a
request character being received), at the next second or the receipt of the next request char-
acter, the output port will provide the GGA message followed immediately by the cor-
responding RMC message for that same second, followed immediately by the corresponding
ZDA message for that same second. The first GGA message will provide the on-time point for
the entire output data stream.
To configure an ASCII Output :
1.
2.
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2 VersaSync User Manual Rev. 6.0
Data Bits : Defines the number of Data Bits for the input output.
Parity : Configures the parity checking of the input port.
Stop Bits : Defines the number of Stop Bits for the input port.
Click Submit.
Navigate to INTERFACES > OUTPUTS: ASCII Output 0 , or to INTERFACES >
OPTION CARDS: ASCII Output 0 . The status window will display, providing information
on Signature Control and the message format (s).
Click the Edit button to open the configuration window:
2.6 Configuring Inputs/Outputs
47