Telephonic communications – Centralized switching system – Structure of equipment
Reexamination Certificate
2004-10-25
2009-12-22
Deane, William J (Department: 2614)
Telephonic communications
Centralized switching system
Structure of equipment
C379S325000
Reexamination Certificate
active
07636434
ABSTRACT:
When replacing an old exchange with a new one, one or more of a small unit (board or magazine) of the old exchange is removed at a time, and replaced by new equipment controlled through a different communications channel than the old equipment. This enables reuse of the existing MDF as well as the cabling from the MDF to the old exchange, which saves cost and also eliminates the need for a lot of changes to cabling documentation and support systems for handling cabling information. When upgrading as described, the new line boards can be designed to provide both voice and DSL services, or else can be made smaller or with higher capacity, so that extra space is freed up for placement of DSL equipment. The new equipment is installed in the same place as the old line board, or at least close enough to the corresponding cabling so that existing line connectors can be used.
REFERENCES:
European Search Report for EP04 44 5112 dated Mar. 24, 2005.
ATM Port Adapter and Interface Module Installation Guide, ′Online! 2001, XP002322310, Chapter 2.
Cisco BPX 8600 Series Installation and Configuration, ′Online! Aug. 2002 , XP002322311, Chapter 13.
Cisco MGX Route Processor Module Installation and Configuration Guide, ′Online! Oct. 2001, XP002322229, Chapter 3.
Doe Stephen
Johnson Peter
Lindgren Magnus
Burleigh Roger S.
Deane William J
Telefonaktiebolaget L M Ericsson (Publ)
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