Discontinued Products Support

Free Lifetime Technical Support

We support our products for as long as you own them with FREE technical support by phone or email and free software upgrades as they become available. No maintenance contract required.

Model Name Last-Time-Buy Date Support Information

FDC3300 Frequency Distribution Chassis
Replacement is FDC3300e

December 2019 FDC3300 Datasheet
User Manual
No software upgrades available.
No product bulletins available.
FDC3302 Frequency Distribution Chassis
Replacement is FDC3302e
December 2019 FDC3302 Datasheet
User Manual
No software upgrades available.
No product bulletins available.

Meridian CDMA Frequency Reference

March 2016 Meridian Datasheet
Options Datasheet
User Manual
Upgrade Software
Product Bulletins
Meridian Precision GPS TimeBase June 2015 Meridian Datasheet
Options Datasheet
User Manual
Upgrade Software
Product Bulletins
PDC3301 Pulse Distribution Chassis
Replacement is PDC3301e
December 2019 PDC3301 Datasheet
User Manual
No software upgrades available.
No product bulletins available.
Praecis Ce Time & Frequency Engine October 2010 User Manual
Upgrade Software
Product Bulletins
Praecis Cf Time & Frequency Reference October 2010 User Manual
Upgrade Software
Product Bulletins
Praecis Cfr Time & Frequency Reference
(CDMA-Synchronized)
October 2003 User Manual
Upgrade Software
Product Bulletins
Praecis Cfr II Time & Frequency Reference June 2010 User Manual
Praecis Ct Computer Time Source August 2010 User Manual
Upgrade Software
Product Bulletins
Praecis Gfr Time & Frequency Reference
(GPS-Synchronized)
August 2003 User Manual
Upgrade Software
Product Bulletins
Praecis Cntp Network Time Server
(CDMA-Synchronized)
February 2005 User Manual
Upgrade Software
Product Bulletins
Praecis Gntp Network Time Server
(GPS-Synchronized)
February 2005 User Manual
Upgrade Software
Product Bulletins
RTM3204 GPS Timing Module February 2015 Datasheet
User Manual
Product Bulletins
TDC3303 Time Code Distribution Chassis
Replacement is TDC3303e
December 2019 TDC3303 Datasheet
User Manual
No software upgrades available.
No product bulletins available.
Tempus Cntp Network Time Server
(CDMA-Synchronized)
August 2005 User Manual
Upgrade Software
Product Bulletins
Tempus Gntp Network Time Server
GPS-Synchronized)
November 2004 User Manual
Upgrade Software
Product Bulletins

Tempus LX Network Time Server
(CDMA-Synchronized)

June 2013 Datasheet
User Manual
Paper: Precision Time Protocol (PTPv1)
Upgrade Software
Product Bulletins

Tempus LX Network Time Server

(GPS-Synchronized)

June 2013 Datasheet
User Manual
Paper: Precision Time Protocol (PTPv1)
Upgrade Software
Product Bulletins
Tycho CDMA Frequency Reference March 2016 Tycho Datasheet
Options Datasheet
User Manual
Upgrade Software
Product Bulletins
Tycho GPS Frequency Reference April 2015 Tycho Datasheet
Options Datasheet
User Manual
Upgrade Software
Product Bulletins

Unison Network Time Server
(CDMA-Synchronized)

December 2013 Datasheet
User Manual
Upgrade Software
Product Bulletins
Unison Network Time Server
(GPS-Synchronized)
December 2013 Datasheet
User Manual
Upgrade Software
Product Bulletins