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5 Hardware
PCS-9785 Satellite-Synchronized Clock
5-17
Date: 2014-10-15
Pin No.
Symbol
Description
21
Empty
22
Empty
The output polarity mode and the output signal mode can be selected by setting the corresponding
jumpers on the module.
Table 5.6-10 Output polarity mode of NR1219A
Jumper
Output polarity
Positive
Negative
J1 (Group 1)
1 2 3
1 2 3
J2 (Group 2)
1 2 3
1 2 3
Table 5.6-11 Output signal mode of NR1219A
Signal mode Group 1 (Jumper "ON") Group 2 (Jumper "ON")
PPS
JP4
JP1
PPM
JP5
JP2
IRIG-B
JP6
JP3
5.6.6 AC Modulation (NR1220A)
The COM module NR1220A provides 7 BNC ports to output AC modulated (1kHz sinusoid) IRIG-B
code.
08020
08020
08020
08020
08020
08020
08020
08020
08020