2.2 代号

BBS          电子公告牌系统                      Bulletin Board System
CP           集合点                              Consolidation Point
HFC          光纤/同轴电缆混合网络               Hybrid Fiber Coax
IP           因特网协议                          Internet Protocol
ISDN         综合业务数字网                      Integrated Services DigitalNetwork
VSAT         甚小口径卫星通信系统                Very Small Aperture Terminal