Paradyne CPX-1000 manual Management Processing, Call Processing Pstn Interface

2. CPX-1000 Voice Services Platform Description 1000-A2-GN22-00

Management Processing

The Management Processor (MP) module is the administrative CPU for the CPX shelf. It acts as a database for the shelf and as an administrative interface for JetCraft, JetVision, and other management interfaces. The MP supports:

Configuration, fault, and security management for the CPX

Configuration management, fault management, and remote software upgrade of the IADs

High-performance, memory-resident database for persistent

￿configuration

Real-time performance and error statics

Call Processing

PSTN Interface

The Embedded Operations Channel (EOC) process on the MP module handles the interface between the CPX shelf and the GR- 303 interface on the Class 5 switch. The EOC supports the following set of management services to the switch using the T1 model and GR-303 protocol stack:

1.The EOC process receives the management requests over the EOC connection to the switch.

2.It then interacts with the management process to complete these requests.

3.The management process notifies the EOC process about changes in the operating status of the CPX-managed objects.

4.The EOC process sends this information to the Class 5 switch.

The Call Processor Engine manages the connections between the CPX shelf and the IADs at subscriber premises.

The Call Processor Engine resides on the redundant Call Processor (CP) modules that handle call processing, call-control signaling, call setup, and call tear-down.

The Timeslot Management Channel (TMC) process on the CP modules receive all call control signaling from both the Class 5 switch and the CP using the Q.921 (LAPD) data link protocol.

The IAD Signaling and Connectivity function manages communication between the CPX and the IADs. The information passed between the CPX and each IAD includes common channel signaling, alarms and events, and software downloads.

The PSTN interface connects the CPX to the Class 5 switch via T1 or STS-1 lines. The Port Controller inserts framing and supervision signals into the TDM data stream. The PSTN interface then directs

2-6 February 2003