Q2686H DK WAVECOM, Q2686H DK Datasheet - Page 40

• Manufacturer Part Number: Q2686H DK
• Description: KIT. DEV, Q2686H, GSM/GPRS
• Manufacturer: WAVECOM

Specifications of Q2686H DK

• Kit Contents: Development Kit Q26 Board, Wireless CPU Soldered, SMA/FME Antenna, Adapter, RS232/USB Cable, CDROM
• Development Tool Type: Development Kit
• Kit Contents Descriptive: 2x Q2686H Modules, 1x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14.2 LED Signalization ("VPAD-USB")
The "VPAD-USB" indicator is a green LED controlled by the presence of VBUS (when
the plug is in the USB connector).
The power supply for the USB interface in the Wireless CPU is provided by the USB
connector.
A USB cable is plugged the LED light and VPAD-USB (the output of a regulator - LDO)
at 3.3v.
But a special solder (J803) must be soldered to power the USB interface in the
Wireless CPU. Hence, by default J803 is soldered.
This document is the sole and exclusive property of Wavecom. Not to be distributed or divulged without
prior written agreement.
WM_BBD_Q26_UGD_001-004
USB socket
J800
©Confidential
Figure 16: USB electrical diagram
VBU S
ESD
protections
LDO
Development Kit Q2686 and Q2687
J803
J801
J802
VPAD - USB
USB - DM
USB - DP
Quik Q26
W ireless
Series
J200
CPU
September 11, 2006
USB Function
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