Psion EP10 User Manual Page 239

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Appendix B: Port Pinouts
Dock Port Pinout
B-3
Psion EP10 Hand-Held Computer User Manual
B.1 Dock Port Pinout
B.2 Battery Contact Pinout
Pin # Pin Name Signal
Direction Rela-
tive To DPA
Comment
1 GND DGND -
2VDD_EXT_PWR
3 VDD_EXT_PWR VDD_EXT_PWR Input These 3 pins are
connected
together.
4VDD_EXT_PWR
5 BATT_OUT VDD_BATT_OUT Output
6 AUDIO_P Output Audio positive.
7 AUDIO_N Output Audio negative.
8 VDD_USBOTG Bi-directional USB Power
(+5.5V).
As output, sup-
plies external
devices when
EP10 is in USB
Host mode.
As input, charges
battery when
EP10 is in USB
Client mode.
9 DOCK_ID Input Dock ID.
10 USB_OTG_DN Bi-directional
11 USB_OTG_DP Bi-directional
12 USB_OTG_ID Input
13 GND DGND -
14 TXDATA Output RS-232 data
transmit. Max bit
rate 115 kbits/sec.
15 RXDATA Input RS-232 data
receive.
Max bit rate
115 kbits/sec.
16 GND DGND -
PIN # Signal Name Function
1 Pack + Battery positive
2 Pack + Battery positive
3 DQ Serial data I/O
4 Det Connect to Pack – through 0
5- No Connection
6 Pack - Battery negative
7 Pack - Battery negative
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