The following instrument model numbers have limited or NO support from Roos Instruments. Roos will make a "best effort" attempt to repair or replace the instrument before recommending a system upgrade or replacement. Please contact support@roos.com for details.
Limited Support means: No longer guarantee stock of these sources or their replacement parts under Extended Warranty (W) or Fast Ship Module Exchange (ME) service contracts. Repair is "return to factory" where RI will make every reasonable effort to repair a failed component. If the component can not be repaired, purchase a new component, replace with another spare, or return with reduced functionality (i.e. Source Inter modulation (INTERMOD) removed ).
| Model Numbers | Date Last Shipped | Date Limited Support | Date NO Support | Upgrade Path | Comments |
| RI7100A (All Instrument Models) | 2011-02 | 2020-06 | TBD | Cassini16 | Cassini hardware compatibility with Fixture Adapters. Testplan Migration required. |
| RI7710G RI7711G | 2011-02 | 2012-05 | TBD | Gen 4 Source (RI7725A, RI7725B, etc.) | AKA "Long" sources due to their depth in the rack. Anritsu model 68047B, some shipped as 'used' in 2011. |
| RI8556B | 2007-12 | 2013-10 | 2018-01 | RI8568D Cassini16 Infrastructure |  |
| RI8574A | 2020-04 | 2025-04 | TBD | RI8608A EPC Linux + RI8613A USB RIFL Master TIM | Migration to USB to RIFL Remote TIM allows system controllers via USB |
| RI8521x | 2011-06 | TBD | TBD | RI8572 HP Waveform + LNC | |