Meinberg PTP270PEX, Manual

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7.5 Assignment of CF Segment in IEEE1344 Code Page 17
7.5 Assignment of CF Segment in IEEE1344 Code
Bit No. Designation Description
49 Position Identier P5
50 Year BCD encoded 1
51 Year BCD encoded 2 low nibble of BCD encoded year
52 Year BCD encoded 4
53 Year BCD encoded 8
54 empty, always zero
55 Year BCD encoded 10
56 Year BCD encoded 20 high nibble of BCD encoded year
57 Year BCD encoded 40
58 Year BCD encoded 80
59 Position Identier P6
60 LSP - Leap Second Pending set up to 59s before LS insertion
61 LS - Leap Second 0 = add leap second, 1 = delete leap second
1.)
62 DSP - Daylight Saving Pending set up to 59s before daylight saving changeover
63 DST - Daylight Saving Time set during daylight saving time
64 Timezone Oset Sign sign of TZ oset 0 = '+', 1 = '-'
65 TZ Oset binary encoded 1
66 TZ Oset binary encoded 2 Oset from IRIG time to UTC time.
67 TZ Oset binary encoded 4 Encoded IRIG time plus TZ Oset equals UTC at all times!
68 TZ Oset binary encoded 8
69 Position Identier P7
70 TZ Oset 0.5 hour set if additional half hour oset
71 TFOM Time gure of merit
72 TFOM Time gure of merit time gure of merit represents approximated clock error.
2.)
73 TFOM Time gure of merit 0x00 = clock locked, 0x0F = clock failed
74 TFOM Time gure of merit
75 PARITY parity on all preceding bits incl. IRIG-B time
1.) current rmware does not support leap deletion of leap seconds
2.) TFOM is cleared, when clock is synchronized rst after power up. see chapter Selection of generated timecode
PTP270PEX Date: 22nd November 2012 17