Spectracom 8144-DD, Инструкция по эксплуатации

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Instruction Manual 8144-DD/075020 Page 1-1
GENERAL INFORMATION
AUTO
MANUAL
ALARMS
READY
INPUT SELECT
Clock Selector/Distribution
Amplifier
MAJOR
MINOR
RESET
ACO
A
B
A
B
1.0 INTRODUCTION
Reliable timing in T1 networks is critical. The 8144 Clock Selector/Distribution Amplifier
enhances reliability by providing manual or automatic switchover to a backup system
clock when the primary system clock has failed. The 8144 also provides twelve outputs
for distribution of the selected clock.
1.1 FEATURES
The 8144 Clock Selector/Distribution Amplifier offers the following features:
•
Manual or automatic switchover between two clock sources or single input
operation.
•
Local and remote alarm indicators, normal or latched, reset from the front
panel.
•
Redundant power sources
•
Twelve independent outputs.
•
DS1 input and output signals.