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MDF connections to stations and the public switched telephone network
48 Installing and Connecting the MDF and Telephones
Figure 21: 3-pair to 4-pair satellite location connectivity
Figure notes:
1. Part of MDF
2. 3-Pair Connecting Blocks
3. Purple Field
4. White Field
5. Patch Cord or Cross-Connect
Jumpers
6. To Media Gateway (3-Pair
Modularity)
7. A25D Cable (3-Pair Circuits)
8. B25A Cable
9. Connectorized (staggered finger)
Multiple 25-Pair Cable
10. 4-Pair Connecting Blocks
11. Blue Field
12. 258A or BR2580A Adapter
13. Information Outlet
14. 4-Pair Circuit (DIW Station Cable
[D-Inside Wire])
15. Part of Satellite Location
16. 4-Pair Circuits (B25A Cable)
2
2
3
8
8
4
4
9
5
5
10
2
11
7
6
1
12
16
15
14
13
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