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Page 220 of 544 System Controller cards
553-3011-100 Standard 14.00 January 2002
External connections to the ethernet port is provided by a 50-pin connector
located in the main cabinet. An NTDK27 Ethernet Adaptor cable adapts this
50-pin connector to the standard 15-pin AUI interface for a MAU.
Network Switching and signalling
Option 11C has thirty DS-30X loops. The main cabinet accommodates the
first ten loops, the first expansion cabinet accommodates the second ten
loops, the second expansion cabinet provides the third ten, the third expansion
cabinet provides the fourth ten, and the fourth expansion cabinet provides the
fifth ten.
Each IPE circuit card has a loop entirely dedicated to it. Every group of four
IPE card slots is programmed as an individual superloop. The superloop
configuration is as follows:
Table 69
Option 11C superloops
Main
Cabinet
First
Expansion
Cabinet
Second
Expansion
Cabinet
Third
Expansion
Cabinet
Fourth
Expansion
Cabinet
Card
Slot
CE
Loop
Super
Loop
Card
Slot
CE
Loop
Super
Loop
Card
Slot
CE
Loop
Super
Loop
Card
Slot
CE
Loop
Super
Loop
Card
Slot
CE
Loop
Super
Loop
1 20 0 11 — 8 21 — 32 31 — 40 41 — 64
2 21 0 12 8 22 32 32 40 42 64
3 22 0 13 12 23 32 33 44 43 64
4 23 0 14 12 24 32 34 44 44 64
5 24 4 15 12 25 36 35 44 45 68
6 25 4 16 12 26 36 36 44 46 68
7 26 4 17 16 27 36 37 48 47 68
8 27 4 18 16 28 36 38 48 48 68
9 28 8 19 16 29 40 39 48 49 72
10 8 20 16 30 40 40 48 50 72