User guide

August 2001 169
Switching Calls through the MVIP-90 Bus
Using Stream Numbers
When calling any MVIP function, you refer to streams by a 0-15
numbering scheme rather than by their DSix and DSox
numbers, as shown in Table 28. When you use streams in their
conventional direction, the reference number is the same as the
stream number. When you use streams in the reverse direction,
you use the stream number plus eight. For examples of when
you would use a stream in a reverse direction, see Connecting
Line Resources on page 175. The driver use the number
assignment and whether the stream is being used as input or
output to select the appropriate DSix or DSox stream.
Table 28. MVIP Stream Numbering
Used as
Stream Input
Stream
Output
Stream
DSi0 8 0
DSi1 9 1
DSi2 10 2
DSi3 11 3
DSi4 12 4
DSi5 13 5
DSi6 14 6
DSi7 15 7
DSo0 0 8
DSo1 1 9
DSo2 2 10
DSo3 3 11
DSo4 4 12
DSo5 5 13
DSo6 6 14
DSo7 7 15