EVDO PC Embedded Datasheet

Product Datasheet
V001R006
Issue 2 (2009-01-20)
Confidencein Commercial
Page 22 of 60
Definition of the EM660 Mini PCI Express pins
Pin
No.
Mini PCI
Express
Standard
Description
HUAWEI Pin
Description
Additional
Description
Direction to
Module
38 USB_D+ USB_D+ USB signal D+. Input/Output
39 3.3Vaux VCC_3V3 3.3V DC supply
rail from the PC
side.
Input
40 CPUSB# GND GND –
41 3.3Vaux VCC_3V3 3.3V DC supply
rail from the PC
side.
Input
42 LED_WWAN# LED_WWAN Active-low LED
signal for
indicating the state
of the card.
Output
43 GND GND GND –
44 LED_WLAN# NC Not connected. –
45 Reserved PCM_CLK(NC) PCM clock Output
46 LED_WPAN# NC Not connected. –
47 Reserved PCM_DOUT(NC) PCM data output Output
48 1.5 V NC Not connected –
49 Reserved PCM_DIN(NC) PCM_data input Input
50 GND GND Mini Card Ground –
51 Reserved PCM_SYNC(NC) PCM frame
synchronization
Output
52 3.3Vaux VCC_3V3 3.3V DC supply
rail from the PC
side.
Input