Masibus masTER T-Sync MTS200 - Figure 11-1 IRIG-B Waveforms; IRIG-B IEEE 1344 Extension

Model: MTS200 (1U)
Doc. Ref. no. : - m08/om/201
Issue no.: 03
Page 113 of 195 User’s Manual
Figure 11-1 IRIG-B waveforms
11.2.2.4 IRIG-B IEEE 1344 Extension:
IEEE 1344 protocol has two versions available of which model MTS200 supports is IEEE 1344-2005
which defined in IEEE 1344.C37.118TM-2005 document. IEEE 1344.C37.118TM-2005 extends the
Range Commanders Council document by using CF bits of IRIG 200-04. These CF bits are contains
information like Time quality, Time offset to get UTC time from frame etc.
Bit no
Designation
Description
50
Year BCD Encoded, BCD 1
Low nibble of BCD encoded Year
51
Year BCD Encoded, BCD 2
52
Year BCD Encoded, BCD 4
53
Year BCD Encoded, BCD 8
54
Separator always Zero
55
Year BCD Encoded, BCD 10
High nibble of BCD encoded Year
56
Year BCD Encoded, BCD 20
57
Year BCD Encoded, BCD 40
58
Year BCD Encoded, BCD 80
59
P6
Position Identifier #6
60
Leap Second Pending (LSP)*
Becomes 1 up to 59 Sec before leap second
inserted
61
Leap Second (LS)*
0 = add leap sec, 1 = Delete leap Sec
62
Daylight Saving Pending (DSP)*
Becomes 1 up to 59 Sec before DST change
63
Daylight Saving Time (DST)*
Becomes 1 during DST
64
Time-zone Offset Sign
Time-zone Offset Sign :- 0=+, 1=-
65
Time-zone Offset BCD encoded,
BCD 1
Offset from coded IRIG-B time to UTC time.
IRIG coded time plus time offset (Including sign)
Equals UTC time.
66
Time-zone Offset BCD encoded,
BCD 2
67
Time-zone Offset BCD encoded,
BCD 4
68
Time-zone Offset BCD encoded,
BCD 8