NEC BS00-B NEAX IVS 2000 Bus Interface Card PN-BS00-B PBX Module

NEC BS00-B NEAX IVS 2000 Bus Interface Card PN-BS00-B PBX Module

The NEC BS00-B (part number PN-BS00-B) is a Bus Interface Card designed for use in the NEC NEAX IVS 2000 PBX telephone system. This card plugs into the NEAX IVS 2000 system chassis and provides bus-level connectivity between system components, enabling communication between the switching fabric and peripheral circuit cards within the PBX cabinet.

Specifications & What's Included

• Manufacturer: NEC
• Model: BS00-B
• Part Number (PCB silkscreen): PN-BS00-B
• Type: Bus Interface Card / Module
• Compatible System: NEC NEAX IVS 2000 PBX
• Form Factor: Plug-in PCB card / module
• Connectors: Multiple white multi-pin inline connectors (visible on PCB — count and pinout per NEC NEAX IVS 2000 system documentation)
• PCB: Green, populated with multiple ICs, memory devices, and passive components
• Included: Card only — no additional cables or accessories

Applications

The NEC NEAX IVS 2000 was a mid-to-large enterprise PBX platform introduced by NEC in the 1990s, serving corporate and institutional customers requiring high-capacity voice switching. The NEAX IVS (Integrated Voice Server) 2000 was designed for environments needing hundreds to thousands of extensions, with a modular card-based architecture that allowed system builders to populate the chassis with line cards, trunk cards, and interface modules as needed. Bus interface cards like the BS00-B serve as the internal communication backbone within the chassis, carrying control and voice-path signaling between the main processor and the individual circuit cards. These cards are still sought today by organizations maintaining legacy NEC NEAX 2000 IVS installations, system integrators supporting installed sites, and repair technicians needing replacement modules to keep aging PBX infrastructure operational.