POS MV V4 User Guide
Interfaces and Data Formats
Copyright © Applanix Corporation, 2009
3-29
Table 29: Time of PPS Digital Output Format
Item Byte Value Units (If Applicable)
Week (GNSS week number) 12 to 15 N/A
PPS time (GNSS seconds
into the week, coincident with
PPS strobe [PCS time])
16 to 23 seconds
Clock offset (PCS clock
offset where GPS Time =
PPS time - clock offset)
24 to 31 seconds
Clock offset standard
deviation
(standard
deviation of PCS clock offset)
32 to 39 seconds
UTC offset (offset of UTC
time from GPS Time where
UTC time = GPS Time +
UTC offset)
40 to 47 seconds
Clock model status (PCS
clock model status where 0 is
valid and values -20 to -1
implies that clock is in
process of stabilization)
48 to 51 N/A
GNSS Ports
The PCS configures the primary and secondary GNSS receiver cards
automatically for its own use.
Physical Interface
The serial digital port for each GNSS receiver (GNSS1 and GNSS2) provides
access for receiver upgrading of its firmware; upgrade kits are available from
Applanix.
Table 30 lists the factory port settings.
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