User manual

4–4 • Configuration ASI-310 User Manual (Iss. 03)
310-to-ASI Converter Settings
There are two modes for the 310-to-ASI converter:
• Packet Mode — All the bytes of each TS packet are output consecutively, and fill
characters (K28.5) are inserted between packets. When there are no bytes ready for
transmission, K28.5 characters are transmitted.
• Byte Mode — Each SMPTE 310 byte that arrives at the converter input is transmitted on
the ASI output as soon as it is ready. The timing and packet size present in the 310 input
are preserved exactly in the ASI output. 310 Input Bit Rate sets the 310 input data rate to
either 19.39 or 38.78Mbps. This must be set to the correct value if you are using the
310-to-ASI converter. This same variable is available on the ASI to 310 Settings tab,
since this input can also be used as a frequency reference for the 310 output.
To set up the 310-to-ASI converter:
1. Select the 310 to ASI tab.
310 to ASI Tab
2. Use the Output Packet Size to adjust the number of bytes per packet in the ASI output.
This is normally 188 bytes, but you can set it as needed for your application. If the input
packet size is different from the output size you specify, the converter adjusts the
number of dummy error-correction bytes appended to the basic 188-byte payload to
achieve the desired total packet length.
3. Use the 310 Input Bit Rate to set the 310 input data rate. This must be set to the correct
value.