Modem: Difference between revisions

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(Added Hardware Switch.)
(Removed the joke, since the math doesn't work. It's 53 more, not 7 less. :-))
 
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The Modem will be an PLS8-E(EU Versions) ([http://www.sectron.eu/products/1-gemalto-m2m/3-industrial-plus/1781-cinterion-r-pls8-e-by-gemalto-m2m-.html],[http://www.gemalto.com/brochures-site/download-site/Documents/M2M_PLS8_datasheet.pdf Features for both Versions], [http://www.seapraha.cz/download/pls8-e_hd_v01000a_tcm216-155302.pdf Datasheet]) or PLS8-US(US Versions). It provides GSM, LTE and GPS. There's an CPU-GPIO controlled Hardware Switch(like an relay) to disconnect the whole Modem from Power so we don't have to rely on the Closed-Source Modem Firmware.
<onlyinclude>The Modem will be a PLS8-E (EU Version) or PLS8-US (US Version). It provides GSM, LTE and GPS. SMS and voice is supported and tested, however it will fall back to 2G for voice on most networks. There's a CPU-GPIO controlled FET switch to disconnect the whole modem from power so you don't have to rely on the closed-source modem firmware. Also, there's a current sensor to detect if the modem is doing unwanted things. [https://pyra-handheld.com/boards/threads/poll-vote-now-1-3g-paranoia-discussing-solutions.73805/page-7#post-1396371]


<strike> GSM/LTE is most prevalent, and would mean only one chip in all Pyras. For reference these are the networks and frequencies used in [https://en.wikipedia.org/wiki/List_of_mobile_network_operators_of_Europe Europe] and [https://en.wikipedia.org/wiki/List_of_United_States_wireless_communications_service_providers The US]
=== Antenna ===
Another variable is price. A 3g modem is cheaper than a 4g one. But they are pin-compatible, which means a decision can be made based on demand. It is also possible to upgrade to 4G by moving to those in production at a later stage. </strike>


== Antenna ==
The [http://www.mouser.com/ds/2/23/09MD-0023-2-PS-Calvus-180337.pdf Antenova A10340] as seen [http://boards.openpandora.org/uploads/post-1-0-54530500-1406937220.jpg here] is listed with  "Antennas Calvus SMD GSM850/ 900/1800/1900/WCDMA"</onlyinclude>, although [https://pyra-handheld.com/boards/threads/pyra-datasheets.99392/#post-1690494 according to hns], the part in the actual retail units is the [https://www.mouser.com/datasheet/2/23/Rubra-A10393-PS-1-1-838464.pdf Antenova A10393 RUBRA].


The [http://www.mouser.com/ds/2/23/09MD-0023-2-PS-Calvus-180337.pdf Antenova A10340] as seen here  [http://boards.openpandora.org/uploads/post-
=== Carrier Compatibility ===
 
== Carrier Compatibility ==


''Main article: [[Carrier Compatibility]]''
''Main article: [[Carrier Compatibility]]''
{{:Carrier Compatibility}}
{{:Carrier Compatibility}}
=== Hardware ===
* [https://www.thalesgroup.com/en/markets/digital-identity-and-security/iot/iot-connectivity/products/iot-products/pls8-e-high-speed Thales Cinterion Model PLS8-E (European)]
** AT command set
** LTE (20,8,3,7,1); 3G (8,3,1); 2G Dual B
** UMTS/HSPA (FDD) 3GPP
** GSM/GPRS/EDGE 3GPP
** GPS/GLONASS solution
** USB interface
* 2x U.FL type Molex 73412-0110 and Murata MM8430-2610RB3 surface mount RF-connectors
* [https://www.mouser.co.uk/ProductDetail/ROHM-Semiconductor/UMG5NTR?qs=4kLU8WoGk0tqfq875ALLsA%3D%3D UMG5NTR] - NPN Bipolar transistor used for "MODEM-IGNITE" signal.
* [https://www.mouser.co.uk/ProductDetail/STMicroelectronics/ESDA6V1-5P6?qs=%2Fha2pyFadujMP4AG9lEc8STyZF3I6aHRYsow7ZW0iwY%3D ESDA6V1-5P6] - 4 and 5 line ESD protection in SOT666

Latest revision as of 10:50, 14 September 2024

The Modem will be a PLS8-E (EU Version) or PLS8-US (US Version). It provides GSM, LTE and GPS. SMS and voice is supported and tested, however it will fall back to 2G for voice on most networks. There's a CPU-GPIO controlled FET switch to disconnect the whole modem from power so you don't have to rely on the closed-source modem firmware. Also, there's a current sensor to detect if the modem is doing unwanted things. [1]

Antenna

The Antenova A10340 as seen here is listed with "Antennas Calvus SMD GSM850/ 900/1800/1900/WCDMA", although according to hns, the part in the actual retail units is the Antenova A10393 RUBRA.

Carrier Compatibility

Main article: Carrier Compatibility

US

Look for a GSM network, like Tmobile or AT&T. (Verizon and Sprint use CDMA networks, which are incompatible with the Pyra modem.)

US MVNOs

There are smaller companies which use the Tmobile and AT&T networks (i.e. Virtual operators), but you'll have to look through for the GSM carriers with a BYOD policy.

Some that may allow use of a Pyra (none yet confirmed) include:

  • Cricket Wireless
  • Ting
  • MetroPCS
  • Simple Mobile

Australia

Australia requires the European Pyra Modem. See this Whirlpool Forum post for more details.

Europe

Pretty much everybody???

Hardware

  • Thales Cinterion Model PLS8-E (European)
    • AT command set
    • LTE (20,8,3,7,1); 3G (8,3,1); 2G Dual B
    • UMTS/HSPA (FDD) 3GPP
    • GSM/GPRS/EDGE 3GPP
    • GPS/GLONASS solution
    • USB interface
  • 2x U.FL type Molex 73412-0110 and Murata MM8430-2610RB3 surface mount RF-connectors
  • UMG5NTR - NPN Bipolar transistor used for "MODEM-IGNITE" signal.
  • ESDA6V1-5P6 - 4 and 5 line ESD protection in SOT666
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