User's Manual

Table Of Contents
VX 675 REFERENCE GUIDE 167
APPENDIX C
Port Pinouts
The following tables list the pinouts for VX 675 terminal’s micro-USB port and
VX 675 Full-Feature and USB base’s Dial, Ethernet, Serial (RS-232), and USB
Host ports.
Micro-USB Port
RS-232 Port
(FFB only)
Connector Pin Function Description
1 EXT_VBUS 5Vdc External Power
input.
2 USB_DN multi-port, USB Signal - /
RS-232 TX
3 USB_UP multi-port, USB Signal + /
RS-232 RX
4 NC
Note: USB_ID
in
VX 675
3G.
No connection
Note: USB_ID is used
to signal USB
controller for the
port function in
VX 675 3G.
5 EXTGND External Ground
0).
0).
Connector PIN Function Description
1 Power 5V0 power 300mA Max.
2 NC No connection
3 NC No connection
4 GND Power ground
5 /RXD Receive data
6 /TXD Transmit data
7 CTS Clear to send
8 RTS Request to send