Topcon Net-G3 - GPS Antenna Connector

Specifications
NET-G3A Operator’s Manual
A-12
Table A-6 gives Ethernet/USB connector specifications.
GPS Antenna Connector
The external antenna connector type is a N-type connector.
Table A-6. Ethernet/USB Connector Specifications
Number Signal Name Dir Details
1 LAN TXD+ O Transmit data plus
2 LAN TXD- O Transmit data minus
3 LAN RXD+ I Receive data plus
4 LAN RXD I Receive data minus
5 USB_PWR_HOST P Power to the UMS device
6 USB_HOST_D- I/O Data minus
7 USB_HOST_D+ I/O Data plus
8 GND - Signal ground
9 USB_D- I/O Data minus
10 USB_D+ I/O Data plus
11 GND - Signal ground
12 USB_PWR P Bus power input
Table A-7. External GPS Antenna Connector Specifications
Type Signal Name Dir Details
TNC Ant_IN I RF input from LNA, 60 mA at
5.0 volts
Net-G3A_OM_Book.book Page 12 Thursday, May 14, 2009 8:49 AM