Polycom DOC2237A manual System Architecture

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System Architecture

The MGC unit is designed to provide maximum reliability, minimum interruptions, and effortless maintenance. Removable active components are accessed via the front panel to provide quick and easy serviceability. Redundant power supplies are easily accessed via the front panel, ensuring a fail safe operation (the MGC-50 is not redundant, therefore not hot- swappable). Network connections on the back of the unit enable easy module removal and prevent accidental disconnection.

All Functional Modules are front-removable and hot-swappable, allowing servicing functions to be performed while the system is in operation.

The operator accesses the MGC unit from an operator work station which is connected to the MGC unit via an Ethernet interface or an RS-232 interface, as shown in Figure 3-1, “MGC interfaces”.

LAN / WAN / RS-232

Operator Workstation MGC-50

MGC-100

Figure 3-1: MGC interfaces

Figure 3-2,“MGC-100 Components” on page 3-2and Figure 3-3,“MGC-50 components” on page 3-3show the internal layout of the MGC-100 and the MGC-50, respectively. All of the MGC modules and cards connect to the backplane.

3-1