C.F. Element # Digit #
Function
70
19
Space
71
20
Space
72
21
Space
73
22
Space
74
23
Space
75
24
Space
76
25
Space
77
26
Space
78
27
Space
5.3.4
IRIG E Output
The
IRIG E
code contains the Binary Coded Decimal (BCD) time of year and Control
Functions. The figure IRIG E Time Code Description illustrates the IRIG E data struc-
ture. The BCD time of year provides the day of year, 1-366, and time of day to tens of
seconds. The hour of the day is expressed in 24 hour format. The Control Function field
includes a time synchronization status bit, year information and SBS time of day.
Time frame
: 10 seconds.
Code Digit Weighting
:
Binary Coded Decimal time of year.
Code world - 26 binary digits.
Tens of seconds, minutes, hours, and days.
Recycles yearly.
Code Word Structure
: BCD word tens of seconds digits begin at index count 6.
Binary coded elements occur between position identifier elements P0 and P5 (3
for seconds, 7 for minutes, 6 for hours, and 10 for days) until the code word is
complete. An index marker occurs between decimal digits in each group to
provide separation for visual resolution. Least significant digit occurs first.
Control Functions
: IRIG formats reserve a set of elements known as Control
Functions (CF) for the encoding of various control, identification, or other special
purpose functions. IRIG E has 45 Control Functions located between elements
230
VelaSync User's Manual
APPENDIX
Summary of Contents for VelaSync 1225
Page 2: ......
Page 4: ...Blank page II VelaSync User s Manual...
Page 12: ...BLANK PAGE X VelaSync User s Manual TABLE OF CONTENTS...
Page 28: ...16 CHAPTER 1 VelaSync User s Manual Rev 3 1 7 The VelaSync Web UI...
Page 34: ...BLANK PAGE 1 9 Regulatory Compliance 22 CHAPTER 1 VelaSync User s Manual Rev 3...
Page 104: ...BLANK PAGE 2 11 Configuring PTP 92 CHAPTER 2 VelaSync User s Manual Rev 3...
Page 251: ...Server management System specifications VelaSync User s Manual 239 APPENDIX...
Page 267: ...VelaSync User s Manual 255 APPENDIX...
