Go to Contents Precise Time and Frequency, Inc., 50L Audubon Road, Wakefield, MA 01880, USA ptf 3207A rev G
Tel: +1-781-245-9090 e-mail: info@ptfinc.com www.ptfinc.com pg. 4
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1: Equipment Overview
ptf 3207A Time and Frequency System Description and Features
The ptf 3207A provides high-precision time and frequency signals. Its modular design allows factory
customization for a wide range of applications. In its standard configuration, the ptf 3207A functions as
a Time Code Unit which receives an IRIG time code input, synchronizes its internal oscillator to that
input, and produces time code and frequency outputs.
When paired with its internal timing-optimized GPS receiver, the ptf 3207A provides 1x10-12
frequency output accuracy, and better than 30 nS RMS accuracy to UTC (USNO). The ptf 3207A is
available in a 19-inch 1U or 2U chassis with rack mount ears for installation.
This new range of Time and Frequency Clocks incorporates a flexible architecture to meet the most
demanding clock synchronization requirements. The ptf 3207A incorporates a dual redundant
reference source design that enables high-availability of the clock source. To achieve high-availability,
the user configures the ptf 3207A with dual independent GPS receivers and antennas, or with one GPS
antenna/receiver and one time code or 1PPS reference. In addition, the 1U chassis, when configured
with two modules, provides dual redundancy and distribution in a single 1U unit.
Optional oscillator upgrades provide enhanced short term stability when locked to a reference source,
and improved holdover ‘flywheeling’ when a reference source is unavailable. See “P7: Oscillators” on
page 223 for more information.
Features and Options
Three user interfaces are available for managing the ptf 3207A:
• The web interface, available using a browser connected to the Ethernet port
• The command line interface, available from the serial port and standard Ethernet port (telnet)
• The keypad/display interface, available on the front panel of the ptf 3207A
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