116
Options List
C.6.4
Digital Outputs
Output Type:
High-Speed CMOS (74HCXXX), 0 to 5 volts, with 47 ohm
series resistance.
Pin Numbers:
Output 1: pin 22
Output 2: pin 47
Output 3: pin 23
Output 4: pin 48
Available Outputs:
IRIG-B:
IRIG format B time code, 5 V CMOS (unmodulated).
IRIG-E:
IRIG format E time code, 5 V CMOS.
IRIG-H:
IRIG format H time code, 5 V CMOS.
IRIG-D/1 PPM:
IRIG format D time code (1 pulse per minute), 5 V CMOS.
Rising edge on time.
10 MPPS:
10 MHz square wave, synchronous to the 1 PPS output.
5 MPPS:
5 MHz square wave, synchronous to the 1 PPS output.
1 MPPS:
1 MHz square wave, synchronous to the 1 PPS output.
100 kPPS:
100,000 PPS square wave, synchronous to the 1 PPS output.
10 kPPS:
10,000 PPS square wave, synchronous to the 1 PPS output.
1 kPPS:
1,000 PPS square wave, synchronous to the 1 PPS output.
100 PPS:
100 PPS square wave, synchronous to the 1 PPS output.
60 PPS:*
60 PPS square wave, synchronous to the 1 PPS output.
50 PPS:*
50 PPS square wave, synchronous to the 1 PPS output.
10 PPS:
10 PPS square wave, synchronous to the 1 PPS output.
1 PPS:
1 PPS (10 mS ”high”), synchronous to 1 PPS/GPS.
1 PPnnnS:
1 pulse per ”nnn” seconds (10 mS ”high”, synchronous to 1
PPS/GPS); ”nnn” corresponds to a number of seconds en-
tered by the user.
1 PPH:
1 pulse per hour, rising edge on time.
Out-of-Lock:
5 volt CMOS levels. Normally ”high” after acquisition of
satellite signals. Toggles ”low” nn minutes after loss of satel-
lite signal lock. Range for ”nn” is 00 to 99, and is set using
the SETUP menu or RS-232C (refer to 1084A/B/C Opera-
tion Manual). Setting of 00 disables this function (output
remains ”high”). This output follows the standard ”out-of-
lock” function on the 1084A/B/C.
* Available only with the Model 1088A/B series clocks.
Summary of Contents for 1084A
Page 4: ...iv ...
Page 6: ...vi ...
Page 18: ...xviii LIST OF FIGURES ...
Page 24: ...4 Unpacking the Clock ...
Page 36: ...16 Connecting Inlet Power Input and Output Signals ...
Page 44: ...24 GPS Antenna and Cable Information ...
Page 114: ...94 Startup and Basic Operation ...
Page 123: ...B 4 Physical Dimensions 103 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Page 124: ...104 Using Surge Arresters ...
Page 134: ...114 Options List C 6 2 Option 06 Firmware Setup Figure C 3 Option 06 Firmware Setup ...
Page 142: ...122 Options List Figure C 5 Option 06 Output Jumper Settings ...
Page 158: ...138 Options List Figure C 13 Option 17 Board Layout and Jumper Locations ...
Page 163: ...C 13 Option 20A Four Fiber Optic Outputs 143 Figure C 14 Option 20A Jumper Locations ...
Page 170: ...150 Options List Figure C 16 Option 23 Internal Jumper Setup ...
Page 172: ...152 Options List Figure C 17 Option 27 Jumper Locations ...
Page 190: ...170 Options List Figure C 20 Option 29 Connector Signal Locations ...
Page 246: ...226 Options List ...