SAGEM 3P@C

2.3.SMUB and Service Boards

2.3.1.Service Processor Unit Board (SMUB)

1.1.1.1Structure of the SMUB

As the control center of 3P@C 4450E, the SMUB is responsible for the data exchange and control management of the system and it provides uplink interfaces for the ADSL and VDSL subscribers to access the network.

The single-SMUB or dual-SMUB operating mode can be adopted for 3P@C 4450E. When the single- SMUB operating mode is adopted, SMUB can be inserted in slot 0 or 1 of the 10U chassis. Hot backup can be implemented in the system when the dual-SMUB operating mode is adopted, in which, two SMUBs can be inserted in slot 0 and slot 1 of the 10U chassis respectively. The SMUB in slot 0 serves as the active one, and the SMUB in slot 1 serves as the standby one, as shown in the following figure:

Figure 2-11 Slots of the SMUB

Active

Standby

SMUB

SMUB

Only the active SMUB is active at one time. The equipment can be managed only via the Console interface on the active SMUB, and the Console interface on the standby SMUB is suspended.

The rear view of the SMUB is shown in Figure 2-12:

3P@C Installation Manual

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