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Appendix D – Port & Cable Pinouts
DL™ User Manual Rev 3 45
INPUT / OUTPUT
I/O CONNECTOR
The input/output (I/O) port on the DL uses a LEMO EEG.1K.308.CLN double-keyed socket, with the pins assigned as
given in the following table:
Table 14: I/O Connector Pin Assignment
Pin Name Description
1 VARF Variable frequency output: a user-programmable, variable-frequency sequence of pulses
2 1PPS Pulse per second output: a 1 ms pulse repeating at a 1 Hz rate that is used to synchronize
the board with external devices.
3 MSR Measure Output
4 MKI Mark input: this signal provides a time tag to the signal processors, which respond to a
falling edge of the signal provided from an external device. It can be enabled by the user
to provide a precise time and data output event.
5 STATUS Status output: an output that changes logic states when a valid GPS position is obtained
by the GPSCard
6 GND Signal ground
7 GND Signal ground
8 GND Signal ground
I/O CABLE
Figure 13: I/O Cable - Illustration
Reference Description Reference Description
1 Brown 7 Blue
2 Black 8 White
3 Red 9 8 conductor cable
4 Orange 10 Female LEMO 8-pin plug
5 Yellow 11 Red marker at top of connector
6 Green