Simplex 746-177 — 2 GB compact flash memory card for the 4100ES master controller CPU assembly.
The 4100ES CPU carries a dedicated compact flash card that archives the panel's electronic job configuration files on site, which is how the panel keeps system records at the control unit as NFPA 72 expects. Simplex lists 746-177 as the standalone service part for that card, alongside the NXP master controller it sits with in the top bay. It gets ordered after a controller swap loses the card, or when a spare is wanted before a large job upload.
- 2 GB, per Simplex 4100ES Service Parts List 579-1006 and the 4100ES data sheet
- Listed with the 4100ES NXP master controller, service part 566-719 / 8566-719
- Holds archived electronic job configuration files and system programming information
Resale listings often advertise 4 GB; Simplex literature specifies 2 GB. And the card alone does not restore a panel — site-specific job data must be loaded with Simplex programming tools.
