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Installation 2 - 33
Connecting Accessories
Connect an optional scanner, ActiveSync serial cable, or USB device (such as a keyboard or mouse) using the
appropriate port on the bottom of the VC5090.
You should use either COM1 or COM2 port for serial ActiveSync or the USB Client port for USB ActiveSync.
A standard USB keyboard or mouse can be connected to the USB A connector (Host).
Figure 2-45
Connection Ports
Connecting an External Speaker to the Vehicle Computer
It may be necessary to install an external speaker in noisy environments. To connect an external speaker, a
special cable must be created to connect the vehicle computer to the external speaker. Figure 2-46 illustrates
the cable requirements. See Audio Connector Pin-Outs on page A-5 for the connector pin-outs and required
connector.
.
Figure 2-46
External Speaker Wiring Diagram
The speaker must be a minimum of 4 ohms (4 or 8 ohms is preferred). The speaker must be rated for 2.5W
continuous at 4 ohms or 1.5W continuous at 8 ohms.
Power
Connector
COM1 Port
Connector
USB A
Connector (Host)
USB/Keyboard
Connector
Audio
Connector
COM2 Port
Connector
USB B
Connector
(Client)