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 |
| Praecis II Timing Module | April 2020 | |
| RTM3204 GPS Timing Module | February 2015 | Datasheet User Manual Product Bulletins |
| Sonoma CDMA-Synchronized NTP Time Server | December 1, 2025 | Datasheet D12 User Manual N12 User Manual Product Bulletins |
| Sonoma D12 and N12 GPS Network Time Server Replacement is Sonoma D22 and N22 | December 1, 2025 | Datasheet D12 User Manual N12 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 |