222
Options List
C.20
Option 36: Four Configurable Outputs
C.20.1
General Description
Option 36 replaces Option 03 and adds four rear-panel outputs, which may be configured to any
available signal in the 1084A/B/C series clocks. The configuration of the four outputs can be
changed at any time via internal jumper settings.
C.20.2
Specifications
General
Output Connectors:
BNC-type RF connectors (4).
Analog Outputs
Output Type
Operational amplifier (LF353) output, with 557-ohm series resistor.
Available Outputs:
Modulated IRIG-B.
Signal characteristics:
IRIG-B time code, modulated onto 1 kHz 4.5 Vpp sine wave carrier.
Digital Outputs
Output Type:
High-Speed CMOS (74HC126), 0 to 5 volts, with 47 ohm
series resistance.
Available Outputs:
Note: Available on Model 1084A/B/C are shown in Ta-
ble C.16
IRIG-B:
IRIG format B time code (unmodulated).
C.20.3
Changing Outputs via Internal Settings
Case Removal
To change the configuration of Option 36, the top cover of the instrument must be removed. Turn
off the instrument, and disconnect the power cord. Using a T-25 Torx driver, remove the four
screws holding the cover (and rack mount ears, if used) in place, and lift the cover off.
WARNING
Do not remove the top cover while power is applied. Hazardous voltages are present
while the power cord is connected. Always disconnect the unit from the input power source before
removal of the top cover.
General Information
Option 36 incorporates a flexible output selection system using jumpers on the Option 36 printed
circuit board. Each of the four rear-panel BNC-type I/O connectors, included with Option 36, can
Содержание 1084A
Страница 4: ...iv ...
Страница 6: ...vi ...
Страница 18: ...xviii LIST OF FIGURES ...
Страница 23: ...1 4 Attaching Rack Mount Ears to 1084A B C Series Clocks 3 Figure 1 2 Attaching Rack Mount Ears ...
Страница 24: ...4 Unpacking the Clock ...
Страница 36: ...16 Connecting Inlet Power Input and Output Signals ...
Страница 39: ...4 1 GPS Antenna Installation 19 Figure 4 2 Antenna Mounting Bracket Figure 4 3 Antenna Mounting with AS0044600 ...
Страница 44: ...24 GPS Antenna and Cable Information ...
Страница 114: ...94 Startup and Basic Operation ...
Страница 123: ...B 4 Physical Dimensions 103 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Страница 124: ...104 Using Surge Arresters ...
Страница 134: ...114 Options List C 6 2 Option 06 Firmware Setup Figure C 3 Option 06 Firmware Setup ...
Страница 142: ...122 Options List Figure C 5 Option 06 Output Jumper Settings ...
Страница 143: ...C 6 Option 06 Parallel BCD Output 1 millisecond Resolution 123 Figure C 6 Option 06 Board Layout and Jumper Locations ...
Страница 157: ...C 10 Option 17 Parallel BCD Output and Second RS 232C Port 137 Figure C 12 Option 17 Output Jumper Settings ...
Страница 158: ...138 Options List Figure C 13 Option 17 Board Layout and Jumper Locations ...
Страница 163: ...C 13 Option 20A Four Fiber Optic Outputs 143 Figure C 14 Option 20A Jumper Locations ...
Страница 170: ...150 Options List Figure C 16 Option 23 Internal Jumper Setup ...
Страница 172: ...152 Options List Figure C 17 Option 27 Jumper Locations ...
Страница 190: ...170 Options List Figure C 20 Option 29 Connector Signal Locations ...
Страница 246: ...226 Options List ...