Description
Power supply failure in a gateway that carries live voice traffic means immediate downtime — calls drop, fax sessions die, and SIP trunks go dark. The AudioCodes M1KB-PS-AC is the genuine AC power supply module for the Mediant 1000B chassis, purpose-built to replace a failed unit quickly or add a second supply for redundant power protection. Either way, it's the fastest path back to full operational status for your voice infrastructure.
The Telecom Spot Take
The Mediant 1000B supports dual power supply configuration for a reason: voice gateways in carrier-grade and enterprise environments cannot tolerate single points of failure. Organizations that run a single AC supply are one PSU failure away from a complete service outage. Adding a second M1KB-PS-AC transforms the chassis into a hot-standby power configuration — if one supply fails, the other carries the full load without interruption. For teams managing Mediant 1000B units in critical sites, having an M1KB-PS-AC on the spare parts shelf is standard practice. This is the exact OEM module supplied with new chassis, so fit, firmware compatibility, and load performance are guaranteed.
Key Features
- Genuine OEM replacement: Exact AudioCodes factory power supply for the Mediant 1000B — same module shipped in new units, with full chassis compatibility.
- Enables power redundancy: A second M1KB-PS-AC installed alongside the primary creates an active/standby configuration that eliminates PSU as a single point of failure.
- AC input: Accepts standard AC input voltage for global AC power infrastructure compatibility.
- Fast field replacement: Modular form factor supports rapid swap-out during maintenance windows to minimize gateway downtime.
- Protects voice continuity: Keeps SIP trunks, analog ports, and E-SBC functions online when power issues arise.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | M1KB-PS-AC |
| Compatible Platform | AudioCodes Mediant 1000B Chassis |
| Power Type | AC (alternating current) |
| Function | Replacement or redundant AC power supply module |
| Configuration Support | Single or dual PSU (active/standby redundancy) |
| Vendor | AudioCodes |


