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Viavi Solutions Inc. C5TEM-R

Timing Module with Rubidium Oscillator

The Viavi C5TEM-R is a field timing and synchronization measurement module for the T-BERD/MTS 5800 handheld network tester. Together with the T-BERD/MTS-5800, the field-optimized C5TEM R delivers industry-leading accuracy to field portable timing and synchronization measurements. It features a modern 72 channel GNSS antenna input and an extremely accurate Rubidium based miniature atomic clock (MAC) to ensure nanosecond-precise measurements even when a satellite signal is not present and the module is running in holdover.


With a T-BERD/MTS-5800 and C5TEM R combination, you can:

  • Perform one-way delay measurements that help you root out asymmetric network delays
  • Conduct field PTP Time Error measurements that allow you to confirm the stability and accuracy of your PTP Boundary Clocks
  • Precisely measure PTP PDV to pre-qualify or troubleshoot non-PTP-aware networks
  • Qualify GNSS antenna installations by evaluating satellite signal strength and eliminating antenna faults
  • Troubleshoot the accuracy of equipment 1 PPS output signals with 1 PPS wander analysis
  • Measure T1 and E1 jitter and wander

You can rent or lease the Viavi, formerly JDSU C5TEM-R at TRS-RenTelco. Our products are calibrated to stringent standards in our 50 GHz ANSI/NCSL Z540-1 compliant laboratory by expert metrologists and technicians. Request a quote today.

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  • Configurations
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Base Model
Standard Rental Accessories*
* Leased or Buy Used product accessories will be confirmed with quote.
  • Cable SMA(m) - SMA(m)

    Qty: 1
  • Antenna GPS

    Qty: 1
  • Adapter SMA(f) - SMB(f)

    Qty: 1
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