Specifications

5-17
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
Chapter 5 Preparing SRM Cards for Communications
Linking Service Module Lines to SRM Channels, VTs, or VCs
Table 5-8 shows how each SRM link is mapped to a tributary unit group 2 (TUG-2) and a tributary unit
(TU) or VC within a SDH line when the administrative unit 3 (AU3) tributary group type is selected.
Note You cannot mix T1 and E1 signals in a single TUG-2.
41 6283 64
42 7284 74
Table 5-7 SRM SONET Virtual Tributary Mapping (continued)
SRME Link
Number VTG No. VT No.
SRME Link
Number VTG No. VT No.
Table 5-8 SRM SDH AU3 TUG-2 and TU/VC Mapping
SRME Link
Number TUG-2 No.
TU-12/VC-12
No.
SRME Link
Number TUG-2 No.
TU-12/VC-12
No.
1 1133 12
2 2134 22
3 3135 32
4 4136 43
5 5137 53
6 6138 63
7 7139 73
8 1240 13
9 2241 23
10 3242 33
11 4243 41
12 5244 51
13 6245 61
14 7246 71
15 1347 11
16 2348 21
17 3349 31
18 4350 42
19 5351 52
20 6352 62
21 7353 72
22 1154 12
23 2155 22
24 31
56 32
25 4157 43