Spectracom VersaSync - IRIG B Output

IRIG Standard 200-04. IRIG Standard 200-04 incorporated the year information after P5 and
reduced the allocated control bits to 18 for format B and 36 for format E.
Note: DCLS is DC Level Shifted output, pulse width modulated with a position
identifier having a positive pulse width equal to 0.8 of the reciprocal of the bit
rate, a binary one (1) having a positive pulse width equal to 0.5 of the reciprocal
of the bit rate and a binary zero (0) having a positive pulse width equal to 0.2 of
the reciprocal of the bite rate.
VersaSync can provide IRIG A, IRIG B, IRIG E and IRIG G code in amplitude modulated (AM) or
pulse width coded (TTL) formats. A signature control feature may be enabled for any IRIG out-
put. Signature control removes the modulation code when a Time Sync Alarm is asserted.
5.4.3 IRIG B Output
The IRIG B Time Code description follows.
Figure 5-1: IRIG B time code description
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