Snap Modules Connectors - Psion OMNII User Manual

Appendix A: Port Pinouts

Snap Modules Connectors

A.2

Snap Modules Connectors

• Model ST4000 (Charger only variant): power and charge.
• Model ST4001 (USB Host/Client variant): power, charge, communications via USB 1.1/2.0 Host and
USB 2.0 Client connectors, DC IN port.
• Model ST4005 (DE9M Serial variant): powered DE9M serial connector, power, charge, serial communi-
cations. Pin 9 is reserved for 5V 1A max power out and is defaulted to off.
USB Micro B connector
(USB device/ActiveSync)
The following are the pin assignments of the interfaces.
Table A.2
USB Micro B Connector
Pin #
1
2
3
4
5
A-4
Psion Omnii Hand-Held Computer User Manual
ST4001
USB Type A connector
(USB host)
Snap Modules Connectors Pinout
ST4001
Signal Pin #
VBus 1
D- 2
D+ 3
ID 4
GROUND 5
6
USB Type A Connector
Signal
VBus
D-
D+
GROUND
SHIELD
SHIELD
ST4005
Powered DE9M serial port
ST4005
DE9M Serial Connector
Pin # Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GROUND
6 DSR
7 RTS
8 CTS
9 5Vdc 1A power out