T-8110L AGERE [Agere Systems], T-8110L Datasheet - Page 122
T-8110L
Manufacturer Part Number
T-8110L
Description
Manufacturer
AGERE [Agere Systems]
Datasheet
1.T-8110L.pdf
(164 pages)
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Data Sheet
Ambassador T8110L H.100/H.110 Switch
February 2004
12 Connection Control
(continued)
12.2 Switching Operation
(continued)
12.2.2 Standard Switching (continued)
12.2.2.1 Subrate (continued)
Subrate Unpacking of Incoming Bytes
Because the H1x0 bus and the local stream bus are based on byte-oriented TDM data streams, and the T8110L
architecture is geared towards standard byte switching, it is not possible to simultaneously switch subrate portions
of a single byte to different places. This limitation is overcome by application. To gain access to each subrate piece
contained in one incoming byte, that byte must be broadcast onto additional channels, one channel for each sub-
rate piece required. The means of broadcasting is up to the application—either the source device of the packed
subrate byte can broadcast it, or the device receiving that byte can broadcast it over unused channels and loop the
broadcast bytes back in. The example from Figure 25 is extended in Figure 26. This example shows the unpacking
of the packed byte created in Figure 25, output to four different channels.
122
Agere Systems Inc.
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