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steve-m, 02/19/2016 10:48 PM
add pictures of connector
= Elson Mobistel EL570 =
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/).
= Connector pinout =
Image(connector_pcb.jpg) Image(el570_serial_cable.jpg, 22%)
| Pin | Signal | measured voltage | description | |||||
| 1 | SPK_L | 800mV | left headset channel | |||||
| 2 | SPK_R | 170mV | right headset channel | |||||
| 3 | GND | 0V | ground, used by USB cable | |||||
| 4 | MIC | 2,800V | microphone, also used for PTT button on headset | |||||
| 5 | GND | 0V | ground, used by USB cable | |||||
| 6 | GND | 0V | ground | |||||
| 7 | ? | 0V | not connected to ground | |||||
| 8 | ? | 2,746V | unknown | |||||
| 9 | VBAT? | 4,030V | seems to be the battery voltage | |||||
| 10 | USB_DM | 0V | USB D- (white) | |||||
| 11 | USB_DP | 0V | USB D+ (green) | |||||
| 12 | UTXD1 | 2,746V | UART Tx | |||||
| 13 | URXD1 | 2,758V | UART Rx | |||||
| 14 | USB_5V | 111mV | USB charging supply | |||||
| 15 | USB_5V | 111mV | USB charging supply | |||||
| 16 | ? | 2,796V | unknown | |||||
| 17 | VBAT | 4,070V | battery + | |||||
| 18 | VBAT | 4,070V | battery + |
Updated by steve-m about 8 years ago · 3 revisions
