Symmetricom TimeProvider 100, Руководство пользователя, Страница: 43 / 124

098-00106-000 Revision A – March, 2009 TimeProvider 100 User’s Guide 43
Chapter 4 Operations
In This Chapter

Introduction

Alarms & Events

Alarm Levels

Date & Time

TimeProvider 100 Logs

User Sessions

System Configurations
Introduction
Having completed the initial setup and checklist, the unit is now ready for operation.
This section provides information about how to interpret TimeProvider 100
operational status and performance. See the
CLI Commands , on page 53 for a
complete list of configuration and query commands with examples and responses
from TimeProvider 100.
The operational status of TimeProvider 100 is dependent on the operational mode
of the RTE clock module. The RTE clock module provides the clock signals (10
MHz and 1PPS) that TimeProvider 100 uses to generate the four telecom outputs.
The seven RTE clock modes as shown in Figure 4-1 are:
1.
Power-up
—RTE is booting. 10 MHz and 1PPS outputs are not valid.
2.
Warm-up
—RTE is waiting for 10 MHz OCXO to warm up and stabilize.
3.
Never-locked
—RTE has not locked to GPS since power-up. 10 MHz and 1PPS
outputs are available, but their quality is not guaranteed. If GPS is not connected,
RTE will remain in this mode.
4.
Locked
—The OCXO is locked to 1PPS signal recovered from GPS. 10 MHz and
1PPS outputs are valid.
5.
Holdover
—RTE cannot track to any GPS satellite. 10 MHz and 1PPS outputs
are valid, but in holdover mode.
6.
Recovery
—RTE has found a GPS satellite and is trying to lock of them. 10 MHz
and 1PPS outputs are valid, but in holdover mode.