Справочник Пользователя для Verizon Network Manager Nodes

January 15, 2008

Version 1.08

3-1

The Network Control System (NCS) is a group of interrelated hardware 
and software components that process orders placed in Network Manager.

The following three components form the NCS System:

 
Network Capabilities System (NetCap) provides near real-time processing of 
changes to your toll-free network. These changes transmit to NetCap via 
orders that you create using Network Manager.

Service Control Manager (SCM) links NetCap and the Data Access Points 
(DAPs). A continuous stream of database changes, including scheduled and 
recurring changes to the network, are sent from NetCap to the SCM through 
56Kbps data links. The SCM translates the information that is sent to NetCap into 

switch language for the DAPs, and ensures that all three DAPs are synchronized with identical 
customer records. 

Data Access Points (DAPs) store the call processing information used by Verizon 
switches to route calls. Verizon switches communicate with the DAPs for every 
call, receiving feature database information including routing, termination, and 
special handling instructions. Changes sent by the SCM to the three 
geographically dispersed DAPs take effect in near real-time. All of the DAPs are 

identical, from the hardware and software configurations, to the features databases they use. At 
least one DAP is always available for call processing functions, as each switch in the network is 
connected to the DAPs via six links, two per DAP.