Trimble Outdoors r7 Manuale Utente

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Trimble R7/R8 GPS Receiver User Guide     9 5
Cables and Connectors     1 0
Tr
imble R7 Operation
10.4
Event Marker/1PPS Cable
The event marker/1PPS cable shown in Figure 10.3 provides a 
breakout box with two BNC (female) connectors for providing 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, such as a 
photogrammetric camera, to the BNC connector labeled Event Marker 
on the breakout box.
Figure 10.3
Event marker/1PPS cable
In addition, the breakout box includes a Lemo 7-pin connector to 
extend serial communications and/or power on Port 2. Because the 
BNC connectors are used to service the event marker and 1PPS 
features, pins 4 (1PPS) and 5 (Event Marker) are inactive on the Lemo 
connector.
P4
P3 
P1
P2 
(Event marker)
(1PPS out)
(To Port 2)
(Port 2 extension)