Hexagon NovAtel MarinePak7, Руководство пользователя

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APPENDIX A MarinePak7 Technical Specifications
A.5 MarinePak7 Strobe Specifications
The MarinePak7 strobe signals are available on the I/O connector and COM ports.
Strobes Input/Output
Factory
Default
Comment
EVENT_IN
Input
Leading edge
triggered
Active low
Input marks for which a pulse greater than 150 ns
triggers certain logs to be generated. (Refer to the
MARKxPOS and MARKxTIME logs and ONMARK
trigger.)
Polarity is configurable using the EVENTINCONTROL
command.
EVENT_
OUT
Output Active low
Programmable variable frequency outputs ranging from
0 Hz to 50 MHz.
These outputs are configured using the
EVENTOUTCONTROL command.
PPS Output Active low
A time synchronization output. This is a pulse where the
leading edge is synchronized to the receiver calculated
GNSS time. The polarity, period and pulse width can be
configured using the Web UI (
GNSS Receiver on
page 63) or the LCD UI ( GNSS Configuration on
page 37).
Table 18: MarinePak7 Strobes Description
Strobe Level Minimum Maximum Current
EVENTIN
V
IL
0.8 V
–
V
IH
1.7 V
EVENTOUT
V
OL
0.2 V
8 mA
V
OH
3.1 V
PPS
V
OL
0.6 V
120 mA
V
OH
5.4 V
Table 19: MarinePak7 Strobe Electrical Specifications
MarinePak7 User Manual 2 112