Core Application
Main Backbone for Government Office Buildings (Most Common)
Vertical Backbone Cabling (Core Link in Low-Voltage Shafts)
- PBX/IPPBX main distribution frame in the computer room → Distribution boxes in the low-voltage rooms of each floor. A single 100-pair cable can support hundreds of office extensions, replacing dozens of 4-pair network cables, significantly saving space in cable trays and conduits, and reducing construction costs.
- Applicable Units: Municipal/District Party Committee buildings, various bureaus (Finance Bureau, Natural Resources Bureau, Housing and Construction Bureau, Human Resources and Social Security Bureau), street offices, and township government office buildings.
- Functions: Fixed office landlines for each department, dedicated lines for leaders, fax machines, confidential telephones, and internal free inter-extension calls.