Paradyne Jetstream CPX-1000 Installation And Operation Manual page 39

1000-A2-GN22-00
February 2003
The CPX supports redundant CP modules
CP-A
T1
T1
CP-A
T1
T1
Figure 2–7. Call Processor Redundancy
On power up, the primary CP (in the lower numbered slot
— slot 7) is the active CP and the secondary CP (in the
higher numbered slot — slot 9) is the standby CP.
The active CP module handles all call processing activity,
maintains all signaling, manages all IADs, captures statistics
and alarms, and monitors all hardware in the system. It
passes all this information to the management system.
The standby CP module mirrors the state information of
the active CP module (i.e., all of the activity on the active CP
module) and can take over at any time.
2. CPX-1000 Voice Services Platform Description
(Figure
LAN
CPX-1000
MP
CP-B
EC ATM
ATM
LAN
CPX-1000
MP
CP-B
EC ATM
ATM
2–7).
Before
Switchover
(CP-A is Active,
CP-B is Standby)
After
Switchover
(CP-A is Standby,
CP-B is Active)
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