Engineering Change Notice (ECN) — Cassini Test Instrument Module (TIM)
ECN: RBEH-DRU3HG
Title: RI8596A 25 GHz Receiver TIM Model No Longer Available For Sale
Change Type: Obsolescence
Urgency: Normal
1) Affected Configuration Items
- Module Name: Cassini TIM RI8596A 25 GHz Receiver
- TIM Part Number (PN): RI8596A
- Cassini Short Cut update may be required. Cassini patches are issued to support hardware changes. QA validation of existing parts may be necessary.
2) Reason / Problem Statement
- Issue / Driver: Supply constraints.
- Customer / Compliance Impact: None - New Model is backward compatible with existing models.
- Measurement Impact: None.
3) Change Description (What is changing?)
- Functional change: No functional change.
- Design change: Updated internal modules.
- Parameters / Limits: No change.
- Interfaces:
- Electrical: No Change.
- Mechanical: No Change.
- Software: Update may be required.
- Backwards compatibility: Yes
Verification & Validation:
- Regression tests impacted: Receiver, No Measurement Expected.
- Field-upgradeable? No.
- Downtime risk / mitigation: Plan for validating Cassini software update.
- Availability / lead time: 12 weeks.
- End-of-Life / Last-Time-Buy: January 1, 2026 / April 1, 2026.