C.16 Option 20A: Four Fiber Optic Outputs
165
C.16
Option 20A: Four Fiber Optic Outputs
Purpose
When installed, the Option 20A provides four individually selectable fiber-optic outputs with Type
ST connectors and 820nm transmitters compatible with multimode fiber.
Specifications
Each fiber-optic output is jumper-configurable to each of the standard digital (CMOS) signal out-
puts. Analog signals, IRIG-B Modulated, and
±
5V Recorder are not selectable.
Option 20A provides an optical power output of -15dBm minimum (-12dBm typical) into 62.5/125-
µ
m fiber.
The optical signal is ON whenever the selected logic signal is HI. Transmitter bandwidth is com-
patible with all available logic signals.
Option 20A may be installed in either Slot A or B of the standard Model 1088A/B clock.
Output Enable (JMP1)
This jumper is used at the factory for setting the output enable for the optical transmitters. For
normal operation, set jumper to position “A”. With two clocks containing Option 18 and configured
for redundant operation, this jumper may be set to position “B”, allowing the optical outputs to
be externally paralleled and driven by the on-line clock. Normally, this jumper will be configured
as required when delivered from the factory.
Output Jumper Enable (JMP2 – JMP5)
The standard digital (CMOS) output signals can be selected for output via one of the fiber-optic
output transmitters by setting jumpers JMP2 through JMP5 on the Fiber-Optic Option Board as
illustrated in Figure C.22.
The following tables provide a list of jumper to corresponding output transmitter and a list digital
signals available for configuration to a fiber-optic output connector. The same signals are available
via each jumper (JMP2 - JMP5) and corresponding setting.
Firmware Configuration
No firmware configuration is necessary for the Option 20A.
Содержание 1088A
Страница 4: ...iv ...
Страница 6: ...vi ...
Страница 18: ...xviii LIST OF FIGURES ...
Страница 23: ...1 4 Attaching Rack Mount Ears to 1088A B Series Clocks 3 Figure 1 2 Attaching Rack Mount Ears ...
Страница 24: ...4 Unpacking the Clock ...
Страница 32: ...12 Front and Rear Panels ...
Страница 38: ...18 Connecting Inlet Power Input and Output Signals ...
Страница 41: ...4 1 GPS Antenna Installation 21 Figure 4 2 Antenna Mounting Bracket Figure 4 3 Antenna Mounting with AS0044600 ...
Страница 46: ...26 GPS Antenna and Cable Information ...
Страница 48: ...28 Setting Internal Jumpers Figure 5 1 Model 1088B Main Board ...
Страница 76: ...56 The Setup Menus ...
Страница 112: ...92 Serial Communication and Command Set ...
Страница 127: ...B 4 Physical Dimensions 107 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Страница 128: ...108 Using Surge Arresters ...
Страница 137: ...C 5 Option 04 Parallel BCD Output 117 C 5 2 Option 04 Firmware Setup Figure C 2 Option 04 Firmware Setup ...
Страница 145: ...C 5 Option 04 Parallel BCD Output 125 Figure C 4 Option 04 Output Jumper Settings ...
Страница 146: ...126 Options List Figure C 5 Option 04 Board Layout and Jumper Locations ...
Страница 165: ...C 12 Option 17 Parallel BCD Output and Second RS 232 Port 145 Figure C 11 Option 17 Output Jumper Settings ...
Страница 166: ...146 Options List Figure C 12 Option 17 Board Layout and Jumper Locations ...
Страница 176: ...156 Options List C 14 5 Typical Network Configuration Figure C 15 Option 18 Network Configuration ...
Страница 187: ...C 16 Option 20A Four Fiber Optic Outputs 167 Figure C 22 Option 20A Jumper Locations ...
Страница 194: ...174 Options List Figure C 24 Option 23 Internal Jumper Setup ...
Страница 196: ...176 Options List Figure C 25 Option 27 Jumper Locations ...
Страница 214: ...194 Options List Figure C 28 Option 29 Connector Signal Locations ...
Страница 270: ...250 Options List ...