Siemens M1 » History » Revision 6
Revision 5 (laforge, 12/02/2023 06:59 PM) → Revision 6/9 (laforge, 12/02/2023 07:02 PM)
{{>toc}}
h1. Siemens M1
This is an early GSM data modem made by the German manufacturer Siemens around 1997. It supports voice calls and [[cellular-infrastructure:CSD]] (but only transparent CSD).
{{thumbnail(20231202_194331.jpg)}}
{{thumbnail(20231202_194318.jpg)}}
h2. Hardware
h3. Terminal / Modem
{{thumbnail(20231202_194300.jpg)}}
{{thumbnail(20231202_194241.jpg)}}
{{thumbnail(20231202_194223.jpg)}}
{{thumbnail(20231202_194208.jpg)}}
{{thumbnail(20231202_194151.jpg)}}
h3. GSM Module
{{thumbnail(20231202_194138.jpg)}}
{{thumbnail(20231202_194125.jpg)}}
{{thumbnail(20231202_194102.jpg)}}
{{thumbnail(20231202_194044.jpg)}}
{{thumbnail(20231202_194026.jpg)}}
{{thumbnail(20231202_194006.jpg)}}
{{thumbnail(20231202_193948.jpg)}}
{{thumbnail(20231202_193935.jpg)}}
{{thumbnail(20231202_193922.jpg)}}
{{thumbnail(20231202_193911.jpg)}}
h3. Major part numbers
|_.Manufacturer|_.Part|_.Description|
|Siemens|PMB 2705F V3.2|Digital Baseband|
|Mitsubishi|M5M5256CVP70LL-I|Flash for Digital Baseband|
|Siemens|PMB 2900H V3.4|Analog Baseband|
|Siemens|PMB 2401|?|
|Analog Devices|ADSP-21MSP59|Digital Signal Processor|
|ST|M29F040-120N5|Flash for DSP|
|Zilog|Z8018233ASC|?|
|Linear|LTC1338IG|?|
|Epson|SRM24A256LLTMT1|Flash?|
|AMD|AM29F040|NOR Flash|
h2. Documentation
* English-Language user manual: attachment:gsm-m1-e.pdf
