NavCom RT-3020 Rev.F - Manual (Page 38)

RT-3020 User Guide – Rev. F
an input pulse to the Event port. The SF-2050M
outputs position and time information relative to each
photograph taken.
Specifications:
9 50 Ohm input impedance
9 3Vdc > Input Voltage, High < 6Vdc
9 0Vdc < Input Voltage, Low < 1.2Vdc
9 Minimum pulse width, 100nsec
9 Rising or Falling edge Synchronization
Connecting the shared EVT MKR/CAN BUS port
requires a five core, 5mm diameter, cable fitted with a
LEMO plug, type FGG.0K.305.CLAC50Z, plus strain
relief, NavCom P/N 94-310062-3003.
‡
An event latch interface unit may be
necessary if the input device pulse is
unable to drive the input.
Detailed specifications of the Event
Input, cable wiring, and configuration
may be found in Appendix C of this
User Guide.
1 PPS
A pulse is available from the SF-2050M at an output
rate of once per second. This pulse can be used for a
variety of Time/ Mark applications where relative
timing is required.
Specifications:
9 12.5ns relative accuracy
9 Better than 100ns absolute accuracy
9 50 Ohm, TTL level
9 Pulse width, default 100mS, range 10 – 999mS
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