DSB75 Development Support Board Rev. B1 Hardware Description
Confidential / Released
DSB75_hd_v12
Page 11 of 96
2008-08-26
Chapter
What is new
Table 33: added jumpers X122, X203, X204, X206, X420, X421 X562, X600 and
footnotes 2, 3. Added figure: “Location of jumpers”.
Added mounting description and figure: “Mounting GSM module onto the DSB75”.
Deleted constraints: “Start-up by DTR0 toggling is only effective if the USB host is not
active. Start-up by plugging the USB cable is only effective if the RS-232 lines are
deactivated by the host application (e.g. if the terminal program is closed). In later
releases of DSB75 this problem will be solved.” Modified figure: “Turn on circuit”.
Added information about automatic restart of the module.
Updated technical data.
More detailed list of cable requirements.
Modified figures “Schematic sheet1” … “Schematic sheet7”
Modified figure: “Floor plan top side”; added figure: “Floor plan bottom side”
Preceding document: ”DSB75 Development Support Board Hardware Description", v01
New document: ”DSB75 Development Support Board Hardware Description", v02
Chapter
What is new
Completely revised and updated all chapters and technical specifications. Added new chapters and
appendix.
