administration data network

aircraft data network

BDN Bell Data Network

B-ISDN Broadband – Integrated Service Data Network

Broad band Integrated Service Data Network (B-ISDN)

Broadband Data Network

Cable Broadband Data Network

Cellular Digital Packet Data Network

circuit switched data network

Circuit Switched Public Data Network

Circuit Switched Public Data Network CSPDN

Circuit-Switched Data Network(CSDN)

Circuit-switched Public Data Network

Circuit-Switched Public Data Network CSPDN

Clock synchronization network

common data network

common user data network

Communications data network

corporate data network