TimeSource 31000 pages

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Symmetriconr

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DATA SHEET

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TimeSource® 3100

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Primary Reference Source For

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Telecommunications Network Operators

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Key Features

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• Innovative BesTime clock engine

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• IF antenna provides 300 meter cable

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runs without amplifiers

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• GPS holdover accuracy of 1x10~11

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for 72 hours with optional inputs

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• Timing accuracy of 100 ns when

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locked to GPS

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• Sync status messaging

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• Integrated sync monitoring of inputs

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• Optional SNTP TimeServer

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• CE marked

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Key Benefits

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• Compliant traceable GPS with advanced

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holdover capabilities

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• Flexible programmable outputs

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The Symmetricom® TimeSource® 3100 is a

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stand alone office Primary Reference Source

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(PRS) with integrated GPS receiver which

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meets ITU-T G.811 network performance

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requirements. The TimeSource 3100 provides

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undisturbed frequency and time Stratum 1

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synchronization when locked to GPS with

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continued Stratum 1 performance for up

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to 72 hours upon loss of GPS.

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The key to TimeSource 3100's superior

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performance is its patented multiple

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nput frequency locked loop BesTime®

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clock engine. The BesTime engine, GPS

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receiver, and digitally controlled quartz

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local oscillator work together to produce

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precise timing outputs. Span line or remote

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oscillator inputs can be added, at the user's

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option, to increase system reliability and

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holdover performance in the event GPS

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signals are interrupted.

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The GPS antenna can be installed up

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to 300 meters from the office shelf,

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without amplifiers, using inexpensive

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thin coax cable. The TimeSource 3100

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can be managed using Symmetricom's

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TimeCraft element manager. The system

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is CE compliant and provides Sync Status

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Messaging (SSM).

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Configuration Options

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The TimeSource 3100 comes standard with

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two E1/2.048MHz output options. It can

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be expanded with eight T1/E1/2.048 MHz

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outputs programmable on a per port basis.

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Applications

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The TimeSource 3100 system can be

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configured as a PRS to front-end an office

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SSU/SASE or as a standalone PRS with 10

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outputs for remote orsmall offices. In the

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standalone configuration, TimeSource 3100

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provides 10 E1 (2.048 Mb/s or MHz) outputs

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in a compact, inexpensive package. This

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configuration is ideal for timing remote

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switch sites which may also have SDH

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terminals, or other network elements.

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The TimeSource 3100 ensures PRS

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performance is maintained through

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self-auditing the inputs and measuring

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and reporting performance against one

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another. Inputs can be easily provisioned to

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be either included in the timing ensemble

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output or be used for monitoring only.

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The TimeSource 3100 is fully software

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upgradeable and provisionable while

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n-service. Communication is via RS-232

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or Ethernet ports.

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