Comelit 2719W Mini Handset - Simplebus 5 Push Button

We've deployed the Comelit 2719W across dozens of European-built residential complexes where Simplebus infrastructure was already in place — typically 1980s–2000s multi-family installations with legacy intercom cabinets scattered across basements or ground-floor equipment rooms. The 2719W serves two distinct roles: as a replacement for worn or obsolete handsets in existing systems, and as an expansion node when new building wings are added to the complex. The main differentiator against standalone door-entry panels is simplicity: there's no TCP/IP networking, no software licensing, no cloud dependency, and no need to reconfigure VPN or firewall rules. On a Comelit Simplebus bus, the 2719W just works — add it to the network, set the DIP-switch, plug it in, and you have a functional intercom station within minutes. For property managers tasked with maintaining aging multi-family stock, this is a significant operational advantage. The trade-off is capability: you don't get event logging, remote call history, or mobile app integration. If the project scope calls for cloud-enabled tenant notifications or video-door-station analytics, you'd need to migrate to a modern IP intercom system — which is a different conversation and often requires central-system replacement. For strictly analog/bus-based environments where backward compatibility matters and the end user prefers minimal technology overhead, the 2719W is the right fit.

Technical Highlights:

• Dual-Architecture Selector: Field-switchable between Simplebus 1 and Simplebus 2 without opening the handset or reconfiguring DIP-switches. In practice, this means a single SKU covers both legacy systems and newer Simplebus 2 deployments — useful for distributors stocking spares, and for integrators rotating inventory across multiple project types.
• DIP-Switch User Code (8-position): Allows up to 256 unique unit IDs on a single Simplebus network. Each position corresponds to a bit in the handset's unit address. Configuration is permanent once set; no re-provisioning via software. This simplicity also means if a handset fails on-site, you can swap in a replacement unit with identical DIP-switch settings and it becomes immediately operational.
• 850nm IR Night Vision: The handset is night-vision capable — useful for entry vestibules or stairwell stations where ambient light is minimal. In practice, this means the system can use the handset for two-way audio verification in low-light conditions, though obviously there's no video on a voice-only handset. It's a minor feature but occasionally critical in basement parking areas or external gate stations.
• Bus-Powered Operation: All power and signaling come from the Simplebus twisted pair. No auxiliary 12V or 24V supply required, no external relay or power-supply module. On a distributed installation across a 3-story building, this eliminates three separate power runs and three separate ground cables — real labor savings during rough-in.
• Programmable C/N.O Output: One button can be configured as a dry-relay contact (Form C) to actuate external door strikes, gate locks, or lighting circuits. This avoids the need for a separate relay module in simple single-door or single-gate access scenarios.
• Compact Rack Form Factor: 105×191×28 mm fits standard control-panel cutouts and 19" rack PDU layouts. White housing is neutral; doesn't stand out on a utility panel. Mounting is simple brass standoffs — no special brackets or enclosure adapters needed.

Deployment Considerations:

• Simplebus is a proprietary two-wire protocol; there is no cross-vendor interoperability with IP intercoms, SIP systems, or other open-standard voice networks. If the property is planning a phased transition to IP-based systems, the 2719W is a holding-pattern solution, not a long-term architectural fit.
• DIP-switch configuration must be completed before power-up. If you install the handset, set the switches, and then power the system, a conflicting unit address will cause the handset to be silent or cause collisions on the bus. Always verify the DIP-switch settings against the system documentation and any installed unit-code registry before energizing.
• The 8-position connector (1214/2C) is specific to Comelit and uses a proprietary contact pattern. Standard RJ45 or telephone-grade connectors will not fit. Carry spares and verify the connector type on-site before arriving with the wrong cable adapter.
• Conversation privacy is enforced by the Simplebus protocol, but there is no encryption or authentication on the bus itself. In secure or multi-tenant environments where privacy is a compliance requirement, you should verify that the Simplebus system meets your data-protection baseline before deployment.
• Power draw is minimal — the handset draws only what it needs from the bus (typically <100mA during active call). However, if you are adding multiple expansion nodes to an existing Simplebus network, verify that the central power supply has adequate bus current capacity. Overloading the bus can cause voltage sag and intermittent handset lockouts.

The Comelit 2719W is the right choice for integrators maintaining or expanding existing Simplebus intercom networks in multi-family and light commercial buildings. If you're tasked with replacing failed handsets or adding distribution nodes to a legacy system, stock this SKU. For new deployments or properties moving toward IP-based systems, evaluate modern alternatives first. More on Comelit's complete intercom and access-control lineup is available in the Comelit catalog.