Chapter 1 Overview of the TimeProvider

Functional Description

Figure 1-7. Block Diagram of the TimeProvider

Shelf

Both the front-access and rear-access shelf provides a chassis for mounting the Input module, one IMC or one IMC/TPIU, two IOCs, and up to four Output modules. A backplane provides connections between the modules.

Input Module

The Input module receives the incoming reference signals and contains the alarm input/output connector. A variety of connector modules allows you to select the connector style and input impedance to match the wiring system at the installation site.

Information Management Card (IMC)

The Information Management Card, known as the IMC, contains a processor that manages communications between the two IOCs and the serial and Ethernet communications ports. It also provides communication to the GPS receiver in the antenna; if the IMC fails or is removed, GPS operations cease.

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TimeProvider User’s Guide 31

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Symmetricom 1000, 1100 manual Shelf, Input Module, Information Management Card IMC