Version 7.0 457 Mediant 3000
User's Manual 22. Digital PSTN
Trunk ETSI GR-253 Timeslots
TUG-3
TUG-2 TU-12 TUG-3 TUG-2 TU-12 TUG-3 TUG-2 TU-12
37 2 6 1 2 2 3 1 6 2
38 2 6 2 2 3 3 2 6 2
39 2 6 3 2 4 3 3 6 2
40 2 7 1 2 5 3 1 7 2
41 2 7 2 2 6 3 2 7 2
42 2 7 3 2 7 3 3 7 2
43 3 1 1 3 1 1 1 1 3
44 3 1 2 3 2 1 2 1 3
45 3 1 3 3 3 1 3 1 3
46 3 2 1 3 4 1 1 2 3
47 3 2 2 3 5 1 2 2 3
48 3 2 3 3 6 1 3 2 3
49 3 3 1 3 7 1 1 3 3
50 3 3 2 3 1 2 2 3 3
51 3 3 3 3 2 2 3 3 3
52 3 4 1 3 3 2 1 4 3
53 3 4 2 3 4 2 2 4 3
54 3 4 3 3 5 2 3 4 3
55 3 5 1 3 6 2 1 5 3
56 3 5 2 3 7 2 2 5 3
57 3 5 3 3 1 3 3 5 3
58 3 6 1 3 2 3 1 6 3
59 3 6 2 3 3 3 2 6 3
60 3 6 3 3 4 3 3 6 3
61 3 7 1 3 5 3 1 7 3
62 3 7 2 3 6 3 2 7 3
63 3 7 3 3 7 3 3 7 3
22.10.1.2 T1 Trunk Enumeration (Sonet Mappings)
The following table is used for converting internal OC-3 numbering to sequential trunk
numbering for API references. The three numbers - STS-1 (K), TUG2 (L) and TU (M) - set
the position of the T1 (V-1.5) trunk inside the OC-3 frame.
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