Management
8360
Router
10/100BASE-T
USB
PPP
DCC
R
/DCC
M
Structured/Unstructured E1
nx64 kbit/s
2xE0
DCC Radio Terminal
Figure 89 DCN interfaces
The internal IP traffic is transported on nx64 kbit/s channels on the TDM bus in
the backplane. The internal channels are automatically established at power up.
6.7.2.1 DCN in SDH
4665
4665
1-9
10-274
1-3
4
5-9
RSOH
AU Pointers
MSOH
Payload
+
RFCOH
Figure 90 Frame
The following channels can be used for DCN transportation in SDH:
• 128 kbit/s default channel available on radio side only (2*64 kbit/s in the
RFCOH).
• 192 kbit/s channel available on line side and radio side by using EOC or
DDC bites of the Regenerator Section Overhead Frame (RSOH) of the
SDH Frame.
115
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
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