COMSPHERE 3600 Series Data Service Units
4-32
July 1999
3610-A2-GB41-70
•
Case 4 – Backing up ( up to ) three channels at
each tributary via the FEP port-sharing feature
( Figure 4-25 ). In this case, each tributary DSU to
be backed up must be equipped with a DBM and
the MCMP Backup configuration option should be
set to TDM. At the central site, a DSU-DBM-TDM
or DSU-DBM-MCMP unit operating in TDM mode
must be available for each tributary to be backed
up.
Using the FEP port-sharing feature, three channels
from the control DSU-MCMP can be daisy chained
to a set of DSU-DBM-TDM units to provide dial
backup for each tributary DSU. To daisy chain
these units, alternate TDM and digital bridge
interface cables for non-modular devices, and use
crossover cables with modular devices. Essentially,
the backup becomes the dial backup of a set of
point-to-point TDM circuits.
Figure 4-25. Case 4 – Backing Up (Up to) Three Channels via the FEP Port-Sharing Feature
Содержание COMSPHERE 3610
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Страница 47: ...Model 3611 Installation 3 9 3610 A2 GB41 70 July 1999 Figure 3 3 Non Modular TDM or MCMP Installation...
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Страница 64: ...COMSPHERE 3600 Series Data Service Units 4 12 July 1999 3610 A2 GB41 70 Figure 4 8 Digital Sharing...
Страница 67: ...Principles of Operation 4 15 3610 A2 GB41 70 July 1999 Figure 4 10 FEP Port Sharing...
Страница 91: ...Principles of Operation 4 39 3610 A2 GB41 70 July 1999 Figure 4 31 Multipoint DDS Circuit in Partial Backup...
Страница 93: ...Principles of Operation 4 41 3610 A2 GB41 70 July 1999 Figure 4 33 Tributary Addressing via Backup Connections...
Страница 102: ...COMSPHERE 3600 Series Data Service Units 4 50 July 1999 3610 A2 GB41 70 Figure 4 38 Bridged LADS Operation...
Страница 111: ...Principles of Operation 4 59 3610 A2 GB41 70 July 1999 Figure 4 47 Digital Sharing in a Multipoint Circuit...
Страница 113: ...Principles of Operation 4 61 3610 A2 GB41 70 July 1999 Figure 4 49 Digital Sharing in an MCMP Circuit LPDA 2 Monitoring...
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Страница 140: ...COMSPHERE 3600 Series Data Service Units 5 26 July 1999 3610 A2 GB41 70 Figure 5 10 Digital Test...
Страница 149: ...DSU Operations 5 35 3610 A2 GB41 70 July 1999 Figure 5 13 Choosing Mode of Operation and Setting Configuration Options...
Страница 161: ...A 1 3610 A2 GB41 70 July 1999 Data Service Unit Menu A...
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