User Manual

Trimble R6/R7 GPS and Trimble R8 GNSS Receivers User Guide 67
Cables and Connectors 10
Trimble R7 GPS Receiver Operation
10.2Power/serial data cable
The power/serial data cable (P/N 32345) is supplied with the Trimble R7 GPS receiver.
Note – Table 10.2 assumes that the cable is attached to the connector labeled Port 1 or
Port 3.
10.3Event marker/1PPS cable
The event marker/1PPS cable shown in Figure 10.3 provides a breakout box with two
BNC ( female) connectors for 1PPS input and event marker output.
Connect a device that accepts 1PPS output pulses to the BNC connector labeled 1PPS
on the breakout box. Connect a device that outputs event marker pulses to the Trimble
R7 GPS receiver, such as a photogrammetric camera, to the BNC connector labeled
Event Marker on the breakout box.
6 Power Out (+) Power In (+) Power In/Out (+)
7 Serial data in (RXD1) Serial data in (RXD2) Serial data in (RXD3)
Table 10.2 Power/serial data cable pinouts
Lemo 0-shell
connector
7 Pin
Direction DE9-F connector
7 Conductors
Power lead
2 Conductors
Pin Function Pin Color Function Color Function
1 Signal ground
↔
5BrownSignal
ground
2GND
→
Black V-OUT
3TXD
→
2OrangeTXD
4RTS/TXD
→
8Blue RTS
5CTS/RXD
←
7 Green CTS
6 PWR
←
Red Power IN (+)
7RXD
←
3YellowTXD
Table 10.1 Trimble R7 GPS receiver port pinout functions (Continued)
Pin Pinout function
Port 1 (TSCe controller,
event, or computer)
Port 2 (Power in,
computer, PPS, or event)
Port 3 (External radio or
power in)