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Mappings
The mappers map the channel signals to the TUG3 level.
The SONET/(SDH) STS-3/OC-3/STM-1 overhead terminators map the TUG-3 over VC-4 and STM-1E1 over STM-1 Multiplexing
C12 --> VC12 --> TU-12 --x3--> TUG-2 --x7--> TUG-3 --x3--> VC-4 --x1--> AU-4 --x1--> AUG1 --x1--> STM1DS1 over STM-1 Multiplexing
C11 --> VC11 --> TU-11 --x4--> TUG-2 --x7--> TUG-3 --x3--> VC-4 --x1--> AU-4 --x1--> AUG1 --x1--> STM1E1 over OC-3 Multiplexing
VT2 SPE ---> VT2 ---x3---> VT-Group --x7---> STS-1 SPE ---> STS1 ---x3---> STS3 ---> OC3DS1 over OC-3 Multiplexing
VT1.5 SPE ---> VT1.5 ---x4---> VT-Group --x7---> STS-1 SPE ---> STS1 ---x3---> STS3 ---> OC3
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IMPORTANT:
The Ports colored in Red and marked with X are NOT to be used.
SDH only supports 63 E1 ports, thus the ports marked with X are not mapped to SDH.
Therefore, one should not connect any RJ45 cable into those ports when STM1Mux is configured in E1 mode.
Critical Release: STM1Mux Version 1.7 and higher supports KLM Interleaved VM Mapping.
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STM1Mux Port | STS-1 | VT-Group | VT1.5 |
| SMTMux Port | STS-1 | VT-Group | VT1.5 |
| SMT1Mux Port | STS-1 | VT-Group | VT1.5 |
1 | 1 | 1 | 1 |
| 29 | 2 | 1 | 1 |
| 57 | 3 | 1 | 1 |
2 | 1 | 2 | 1 |
| 30 | 2 | 2 | 1 |
| 58 | 3 | 2 | 1 |
3 | 1 | 3 | 1 |
| 31 | 2 | 3 | 1 |
| 59 | 3 | 3 | 1 |
4 | 1 | 4 | 1 |
| 32 | 2 | 4 | 1 |
| 60 | 3 | 4 | 1 |
5 | 1 | 5 | 1 |
| 33 | 2 | 5 | 1 |
| 61 | 3 | 5 | 1 |
6 | 1 | 6 | 1 |
| 34 | 2 | 6 | 1 |
| 62 | 3 | 6 | 1 |
7 | 1 | 7 | 1 |
| 35 | 2 | 7 | 1 |
| 63 | 3 | 7 | 1 |
8 | 1 | 1 | 2 |
| 36 | 2 | 1 | 2 |
| 64 | 3 | 1 | 2 |
9 | 1 | 2 | 2 |
| 37 | 2 | 2 | 2 |
| 65 | 3 | 2 | 2 |
10 | 1 | 3 | 2 |
| 38 | 2 | 3 | 2 |
| 66 | 3 | 3 | 2 |
11 | 1 | 4 | 2 |
| 39 | 2 | 4 | 2 |
| 67 | 3 | 4 | 2 |
12 | 1 | 5 | 2 |
| 40 | 2 | 5 | 2 |
| 68 | 3 | 5 | 2 |
13 | 1 | 6 | 2 |
| 41 | 2 | 6 | 2 |
| 69 | 3 | 6 | 2 |
14 | 1 | 7 | 2 |
| 42 | 2 | 7 | 2 |
| 70 | 3 | 7 | 2 |
15 | 1 | 1 | 3 |
| 43 | 2 | 1 | 3 |
| 71 | 3 | 1 | 3 |
16 | 1 | 2 | 3 |
| 44 | 2 | 2 | 3 |
| 72 | 3 | 2 | 3 |
17 | 1 | 3 | 3 |
| 45 | 2 | 3 | 3 |
| 73 | 3 | 3 | 3 |
18 | 1 | 4 | 3 |
| 46 | 2 | 4 | 3 |
| 74 | 3 | 4 | 3 |
19 | 1 | 5 | 3 |
| 47 | 2 | 5 | 3 |
| 75 | 3 | 5 | 3 |
20 | 1 | 6 | 3 |
| 48 | 2 | 6 | 3 |
| 76 | 3 | 6 | 3 |
21 | 1 | 7 | 3 |
| 49 | 2 | 7 | 3 |
| 77 | 3 | 7 | 3 |
22 | 1 | 1 | 4 |
| 50 | 2 | 1 | 4 |
| 78 | 3 | 1 | 4 |
23 | 1 | 2 | 4 |
| 51 | 2 | 2 | 4 |
| 79 | 3 | 2 | 4 |
24 | 1 | 3 | 4 |
| 52 | 2 | 3 | 4 |
| 80 | 3 | 3 | 4 |
25 | 1 | 4 | 4 |
| 53 | 2 | 4 | 4 |
| 81 | 3 | 4 | 4 |
26 | 1 | 5 | 4 |
| 54 | 2 | 5 | 4 |
| 82 | 3 | 5 | 4 |
27 | 1 | 6 | 4 |
| 55 | 2 | 6 | 4 |
| 83 | 3 | 6 | 4 |
28 | 1 | 7 | 4 |
| 56 | 2 | 7 | 4 |
| 84 | 3 | 7 | 4 |
STM1Mux to NSG Mapping
to NSG Mappging DocumentView file name STM1Mux -Connected-2x-NSG-Mapping (1).pdf
ERRATA
May 29 2014
On releases before 1.7 E1-SDH Port mapping used non-standard OC3 mapping method.
On release 1.7 the E1-SDH Port mapping defaults to KLM (Interleaved Mode) which is one of the standards.
Note: E1-SDH ITU-T Mapping is not supported.Sep 14 2013
All T1 ports are known to work properly in production environment.
There are no known issues on the T1/SONET configuration on firmware v1.2
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