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MobistelEL570 » History » Version 3

steve-m, 02/19/2016 10:48 PM
add pictures of connector

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[[PageOutline]]
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= Elson Mobistel EL570 =
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The Elson Mobistel EL570 is a Mediatek MT6227 based phone with touchscreen, mostly sold in Germany. It seems to be directly imported from China, and badged by Elson (http://www.elson.de/).
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= Connector pinout =
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[[Image(connector_pcb.jpg)]] [[Image(el570_serial_cable.jpg, 22%)]]
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||Pin || Signal || measured voltage || description ||
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||1   || SPK_L  || 800mV            || left headset channel ||
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||2   || SPK_R  || 170mV            || right headset channel||
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||3   || GND    || 0V               || ground, used by USB cable ||
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||4   || MIC    || 2,800V           || microphone, also used for PTT button on headset ||
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||5   || GND    || 0V               || ground, used by USB cable ||
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||6   || GND    || 0V               || ground ||
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||7   || ?      || 0V               || not connected to ground ||
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||8   || ?      || 2,746V           || unknown ||
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||9   || VBAT?  || 4,030V           || seems to be the battery voltage ||
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||10  || USB_DM || 0V               || USB D- (white) ||
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||11  || USB_DP || 0V               || USB D+ (green) ||
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||12  || UTXD1  || 2,746V           || UART Tx ||
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||13  || URXD1  || 2,758V           || UART Rx ||
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||14  || USB_5V || 111mV            || USB charging supply ||
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||15  || USB_5V || 111mV            || USB charging supply ||
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||16  || ?      || 2,796V           || unknown ||
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||17  || VBAT   || 4,070V           || battery + ||
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||18  || VBAT   || 4,070V           || battery + ||
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