Paradyne Jetstream CPX-1000 Installation And Operation Manual page 28

2. CPX-1000 Voice Services Platform Description
MP Module
EOC
Process
CP
Modules
Q.931 (LAPD) Link Layer
Control
T1 Interface Controller
2-4
Management
Processing
Processing
PSTN Interface
T1 Modules
Voice Bus
Voice
Echo
Cancellation
and
Compression
Figure 2–2. CPX Functional Diagram (T1 Interface)
Process
Call
Engine
TMC
Packet Interface
ATM Modules
Voice
1000-A2-GN22-00
CPX-1000
Shelf
IAD
Signalling and
Connectivity
Control
Voice/
Control
Splitter
OC3 Port
0481
February 2003