EVDO PC Embedded Datasheet

Product Datasheet
V001R006
Issue 2 (2009-01-20)
Confidencein Commercial
Page 12 of 60
Figure 1-3 Mini PCI Express identification
− RUIM interface: The RUIM interface provides the interface for a RUIM card.
The RUIM card can be inserted into the PC.
− USB interface: This module can operate at USB low-speed (1.5 Mbits/sec)
and USB full-speed (12 Mbits/sec). It is compliant with USB 2.0
Specification,and available from www.usb.org.
− Because there is not a separate USB-controlled voltage bus, USB functions
implemented on EM660 which are expected to report as self-powered
devices.
− Auxiliary signals: The auxiliary signals provide some other functions.
− Power sources and grounds: The PCI Express Mini Card provides two power
sources, including the one at +3.3 Vaux (3.3Vaux) and the one at 1.5 V(+1.5
V). The EM660 uses the +3.3 voltage as the power supply.