Logitech 3D MOUSE & HEAD TRACKER Technical Reference Manual page 29

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Component Description
determines the status of all of the mouse buttons. It then reports this
data to the host computer via a serial communication link.
Figure 3-9 shows the control unit's front panel. This panel includes four
LED's. The Power LED turns red when you turn on the control unit. The
Transmit LED turns green each time the control unit sends a report to
the host computer. During high-speed transmissions, such as stream
mode, the Transmit LED turns on and off so quickly that it may appear
dim. The Receive LED turns green when the control unit receives a
command from the host computer. The Out of Range LED turns green
when you move the receiver out of the active area of transmission or
exceed the tracking speed (see Chapter 5, "System Operation").
OUT OF
TRANSMIT RECEIVE
RANGE
POWER
Figure 3-9. Control Unit Front Panel
Figure 3-10 shows the control unit's rear panel. This panel provides
connectors for all of the system components (see Chapter 2 for
instructions for how to connect the components to the control unit). The
rear panel also includes the On/Off switch
ON
MASTER/SLAVE
SERIAL PORT
TRANSMITTER
AUDIO OUT
RECEIVER
POWER
OFF
Figure 3-10. Control Unit Rear Panel
17

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