Leica GR10 - Ports & Pin Assignments: GR25

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Appendix A: Ports & Pin Assignments
Ports & Pin Assignments: GR/GM10
Description
Some applications require knowledge of the pin assignments for the GR/GM10 ports. In this chapter, the pin assignments and
sockets for the ports of the GR/GM10 are explained.
Ports at the instrument rear panel
a. GNSS: GNSS Antenna port TNC
b. P1: Serial port, 8 pin LEMO
c. OSC: Oscillator port
d. Ethernet port: Ruggedised RJ45
e. P3: Communication Slot-in port
f. PWR: Power port, 5 pin LEMO, dual input
g. P3: Communication Slot-in port Antenna, TNC
Pin assignments for Serial Port P1
Pin
Signal Name
Function
Direction
1
RTS
RS232, ready to send
Out
2
CTS
RS232, clear to send
In
3
GND
Signal ground
-
4
RxD
RS232, receive data
In
5
TxD
RS232, transmit data
Out
6
ID
Identification pin
In
7
GPIO
RS232, configurable
function
In or out