Does CSG use Mercury hardware for access control?

Yes, CSG and its integration partners utilize Mercury hardware, which is widely regarded as the industry standard for open-architecture access control — providing hardware-level flexibility that supports multiple software platforms without vendor lock-in.

Mercury's reputation in the access control industry is built on its commitment to open architecture. Unlike proprietary hardware that requires a specific manufacturer's software, Mercury controllers work with a wide range of access control management platforms — including Lenel OnGuard and S2, both of which CSG installs and supports. This means an institution that deploys Mercury hardware today is not locked into a single software vendor for the life of the hardware.

For financial institutions, this architecture choice has practical long-term value. Access control hardware lifecycles are measured in decades, while software platforms evolve much faster. By separating hardware and software decisions, Mercury-based systems give institutions the flexibility to upgrade their management software or integrate with new platforms without replacing physical infrastructure. CSG recommends Mercury hardware specifically because of this long-term flexibility and its strong track record in financial institution environments.