Spectracom NetClock 9489 - Page 9

2.17.3 Configuring Optional Outputs
141
2.17.4 Network Ports
141
2.17.5 Signature Control
141
CHAPTER 3
MANAGING TIME
145
3.1 The Time Management Screen
146
3.2 System Time
147
3.2.1 System Time
148
3.2.1.1 Configuring the System Time
148
3.2.1.2 Timescales
149
3.2.1.3 Manually Setting the Time
150
3.2.1.4 Using Battery Backed Time on Startup
152
3.2.2 Timescale Offset(s)
154
3.2.2.1 Configuring a Timescale Offset
154
3.2.3 Leap Seconds
155
3.2.3.1 Reasons for a Leap Second Correction
155
3.2.3.2 Leap Second Alert Notification
156
3.2.3.3 Leap Second Correction Sequence
156
3.2.3.4 Configuring a Leap Second
157
3.2.4 Local Clock(s), DST
157
3.2.4.1 Adding a Local Clock
158
3.2.4.2 DST Examples
160
3.2.4.3 DST and UTC, GMT
161
3.3 Managing Input References
161
3.3.1 Input Reference Priorities
161
3.3.1.1 Configuring Input Reference Priorities
163
3.3.1.2 The "Local System" Reference
166
3.3.1.3 The "User/User" Reference
167
3.3.1.4 Reference Priorities: EXAMPLES
169
3.3.2 Reference Qualification and Validation
172
3.3.2.1 Reference Monitoring: Phase
172
3.3.2.2 Smart Reference Monitoring
173
3.3.2.3 BroadShield
174
3.3.3 The GNSS Reference
182
3.3.3.1 Reviewing the GNSS Reference Status
183
3.3.3.2 Determining Your GNSS Receiver Model
187
NetClock User Reference Guide • TABLE OF CONTENTS
VII