First-virtual-communications Voyager 3000 Manual de usuario descargar pdf (Pagina 36)

Voyager 3000 User Guide

3-2

System Configurations

Single Shelf configuration

Figure 3-1 shows how a single shelf Voyager 3000 system is configured with an EMU. The

system is set up with a device ID of 0 ensuring that it functions as a master device.

Dual shelf configuration

In a dual shelf configuration the Host connects to the I

C Master via RS232 serial link. Data

from the second EMU is requested via the I

C bus and is passed to the Host via the RS232

link. The I

C Master has sufficient memory to store global system information and its own

status information, the slave will store its own status information. An unique I

C address is

assigned to each EMU with the address 0 reserved for the master. The EMU currently has

provision to support up to eight shelves.

Figure 3-1 Single shelf EMU configuration

Figure 3-2 Dual shelf EMU configuration

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First-virtual-communications Voyager 3000 Manual de usuario Pagina 36