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Acutime 2000 Synchronization Kit User Guide A-123
A Trimble Standard Interface Protocol
0x8F-AD
Report Packet 8F-AD
Primary UTC Time
The output of the 8F-AD packet is synchronized with the PPS, and
may also be generated in response to external events. This packet
provides accurate time and date information for time stamping and
time transfer. The leap flag provides complete UTC event
information, allowing implementation of sophisticated distributed
systems intended to operate synchronously with UTC time. This
packet is always output first in a possible sequence of up to 4
synchronous packets. Output of this packet can be disabled and
configured using the 8E-AD packet .
Table A-98 Report Packet 8F-AD
Byte # Item Type Meaning
0 Subpacket ID BYTE Subcode 0xAD
1-2 Event Count INTEGER External event counter. Zero for PPS.
3-10 Fractional
Second
DOUBLE Time elapsed in current second (seconds)
11 Hour BYTE UTC Hour
12 Minute BYTE UTC Minute
13 Second BYTE Second (0-59; 60 = leap)
14 Day BYTE Date (1-31)
15 Month BYTE Month (1-12)
16-17 Year INTEGER Year (4 digit)
18 Receiver
Status
BYTE Tracking Status (see definition below)
19 UTC Flags BYTE Leap Second Flags (see definition below)
20 Reserved BYTE Contains 0xFF
21 Reserved BYTE Contains 0xFF