Hardware reference guide

7535 Hardware Reference Guide 47
Chapter 4: Connecting
USB Serial Connections
Any device that draws less than 100 mA from the USB cable is called a “low-pow-
ered” device; this includes self-powered devices that need no power, as well as
devices such as tablets and mice that need little power.
Devices that draw more than 100 mA from the USB cable are called “high-pow-
ered” devices. The USB cable must be connected to another device that can supply
this power.
The 7535’s Portable Docking Module is not rated to supply power to high-powered
USB devices.
USB cables can have two types of connectors. The ‘type-A’ connectors, found
on USB host devices such as desktop computers, are wide and flat. The ‘type-B’
connectors, found on peripherals, are narrower and squarer.
USB cable lengths are limited. Full-speed cables are a maximum of 5 m long.
To connect using ActiveSync via USB:
1. Connect the USB cable to the USB type-A port on your computer.
2. Connect the other end of the USB cable to the 7535’s USB type-B port.
This port is the square connector on the left side of the Portable
Docking Module (labelled with the symbol).
On the 7535...
3. Open the 7535’s Control Panel.
4. Double-click on the PC Connection icon. The PC Connection dialog
opens.
5. Verify that the Use Connection checkbox is checked and that the unit
will connect using USB.
On the development PC...
6. Double-click on the ActiveSync icon in the system tray. The Active-
Sync menu appears.
7. Select Connection Settings. The Connection Settings dialog appears.
8. Place a checkmark in the checkbox labeled Allow USB connection
with this desktop computer.