10
Front and Rear Panels
Figure 2.6: Option 15A Power Supply Ter-
minal Strip Connector
•
Option 15B, 250 Vdc Terminal Power Strip with Surge Withstand Protect Circuitry (SWC)
Figure 2.7: Option 15B Power Supply Ter-
minal Strip Connector
2.3.2
Antenna Input
The Model 1088A/B provides a type-F, GPS antenna input connector not only as the connection
point for GPS signal, but also supplies 5 volts to energize the antenna. It is equipped with a
threaded, type-F female connector.
Shown below is a diagram of the antenna connector. To check for this signal, use a small multimeter
and probe from the center pin of the connector to the threads. Voltage range is 4.9 to 5.1 Vdc. For
further information, see Chapter 4, Antenna and Cable Information.
Figure 2.8: GPS Antenna Connector
2.3.3
Event Input
For timing external events based on the GPS-synchronized time, use the Event Input function with
two separate connectors: J3 Event B input (Standard I/O) and J4 Event A input (Standard I/O).
See Figure 5.1, which illustrates the location of these connectors and jumpers.
2.3.4
RS-232 Communication Ports
The Model 1088A/B has one standard and one optional communication port. Generally, for RS-
232 communications, you will only need pins 2, 3 and 5 using a null-modem cable. For more
information, see Chapter 9, Serial Communications and Command Set.
Summary of Contents for 1088A
Page 4: ...iv ...
Page 6: ...vi ...
Page 18: ...xviii LIST OF FIGURES ...
Page 23: ...1 4 Attaching Rack Mount Ears to 1088A B Series Clocks 3 Figure 1 2 Attaching Rack Mount Ears ...
Page 24: ...4 Unpacking the Clock ...
Page 32: ...12 Front and Rear Panels ...
Page 38: ...18 Connecting Inlet Power Input and Output Signals ...
Page 46: ...26 GPS Antenna and Cable Information ...
Page 48: ...28 Setting Internal Jumpers Figure 5 1 Model 1088B Main Board ...
Page 76: ...56 The Setup Menus ...
Page 112: ...92 Serial Communication and Command Set ...
Page 127: ...B 4 Physical Dimensions 107 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Page 128: ...108 Using Surge Arresters ...
Page 145: ...C 5 Option 04 Parallel BCD Output 125 Figure C 4 Option 04 Output Jumper Settings ...
Page 146: ...126 Options List Figure C 5 Option 04 Board Layout and Jumper Locations ...
Page 166: ...146 Options List Figure C 12 Option 17 Board Layout and Jumper Locations ...
Page 187: ...C 16 Option 20A Four Fiber Optic Outputs 167 Figure C 22 Option 20A Jumper Locations ...
Page 194: ...174 Options List Figure C 24 Option 23 Internal Jumper Setup ...
Page 196: ...176 Options List Figure C 25 Option 27 Jumper Locations ...
Page 214: ...194 Options List Figure C 28 Option 29 Connector Signal Locations ...
Page 270: ...250 Options List ...