Chapter 2 Features and Functions
Outputs
2-10 Getting Started Guide
Figure 2-1. Sample IRIG-B Output Signal (59551A Only)
10 20 30 40 500
1248
P0
8 ms
10 20 40 1 2 4 8 10 20 40
SECONDS MINUTES HOURS
DAY
P1 P2 P3 P4 P5
REF. TIME
REF. MARKER
INDEX COUNT (0.01 SECONDS)
TIME FRAME 1 SECOND
2 ms
BINARY '0'
(TYPICAL)
5 ms
BINARY '1'
(TYPICAL)
.01 SEC.
(TYPICAL)
1 2 4 8 10 20 1 2 4 8 10 20 4080 100 200
60 70 80 90 050
CONTROL FUNCTIONS
(TIME OF DAY)
STRAIGHT BINARY SECONDS 17-BITS
P5 P7 P8 P9 P0
8 ms
POSITION IDENTIFIER
(TYPICAL)
.01 SEC. INDEX MARKER
.1 SEC. INDEX MARKER
Time of this point equals 173 Days, 21 Hrs, 18 Mins., 42.750 Sec.
X3.3X
TYPICAL MODULATED CARRIER
Recommended Frequency 1,000 Hz
2
0
2
2
2
1
2
3
2
4
2
5
2
6
2
7
2
8
2
9
2
10
2
11
2
12
2
13
2
14
2
15
2
16
2
17
P6