Comelit 909030155 PAC 512 DCI Two-Door Access Controller
Overview
The Comelit 909030155 is a rack-mounted two-door access control module engineered for distributed access management in IP security systems. This controller handles dual-door operation in a compact form factor, making it suitable for multi-tenant buildings, enterprise campuses, and integrated access deployments where centralized rack infrastructure is the deployment standard. By consolidating access logic into a single rack-mountable unit, the 909030155 reduces field hardware complexity and streamlines wiring compared to deploying separate single-door controllers at each access point.
Key Features
- Two-Door Support: Manages dual independent access points from a single module — cuts installation labor and rack space versus installing two single-door units.
- PoE+ Power (802.3at): Draws power via PoE+, eliminating the need for dedicated 12VDC or 24VDC power supplies at the controller location. Reduces infrastructure cost and simplifies cabling in environments where your network switch already delivers PoE+ to the rack.
- Rack Mount Form Factor: Fits into standard 19-inch network cabinets and security equipment racks. Centralizes access control logic alongside your network and recording infrastructure, reducing distributed hardware footprint and simplifying cable management.
- Comelit Ecosystem Integration: Operates within the Comelit access control platform, supporting integration with credential readers, strike drivers, request-to-exit sensors, and door position monitoring typical of standard access deployments.
- Compact Deployment: Two-door capacity in a single chassis means less rack real estate consumed per door controlled — a direct cost and space advantage in cabinet-constrained environments like small server rooms or wall-mounted security racks.
Integration & Compatibility
The 909030155 integrates into Comelit access control ecosystems and is powered by PoE+ (IEEE 802.3at), typically drawing under the PoE+ 30W budget. This eliminates the need to run separate power infrastructure to a remote door or access point — a significant labor and material saving in retrofit or multi-building campuses. The unit mounts into any standard 19-inch rack, so it pairs naturally with your existing network equipment, NVRs, and security appliances in a single cabinet. Confirm reader and strike compatibility with your Comelit system integrator before final specification.
For deployments spanning access control planning across multiple buildings or zones, the centralized rack mounting reduces point-of-failure risk compared to distributed door-side controllers — all logic resides in a monitored, climate-controlled environment rather than exposed at each access door.
When to Choose a Different Model
If you require four-door or higher capacity from a single controller, or if your installation cannot support PoE+ power delivery to the rack location, consider higher-capacity variants in the Comelit access control line. Similarly, if your access points are geographically distributed across multiple buildings without central rack infrastructure, door-side controllers may be more practical than a centralized two-door rack unit.
Frequently Asked Questions
Q: Does the Comelit 909030155 support OSDP (Open Supervised Device Protocol) readers?
A: Confirm OSDP support with your Comelit system integrator — reader protocol compatibility depends on the specific Comelit access platform and firmware version paired with the 909030155.
Q: Can the 909030155 be powered by standard PoE (802.3af) instead of PoE+?
A: No. The 909030155 requires PoE+ (802.3at, 30W) power. Standard PoE (802.3af, 15.4W) will not reliably power this unit. Verify your network switch supports PoE+ on the ports you intend to use.
Q: What is the warranty on the Comelit 909030155?
A: Warranty details are not available in the product evidence. Contact your Comelit authorized integrator or the manufacturer for warranty terms.
Q: Can I install the 909030155 outside a rack, such as wall-mounted in an electrical box?
A: The 909030155 is designed for rack mounting in 19-inch cabinets. Wall or non-rack installation may be possible with custom brackets, but verify mechanical and thermal requirements with your integrator first — rack-mount equipment is typically designed for passive cooling in enclosed spaces.
Q: Does the 909030155 work with Milestone XProtect or other third-party VMS platforms?
A: The 909030155 is an access control module designed for Comelit systems. VMS integration depends on whether your Comelit access platform exports events and data via standard protocols (ONVIF, syslog, etc.) to third-party systems. Confirm compatibility with your Comelit integrator and your VMS vendor.
Q: How many request-to-exit sensors and door position sensors can the 909030155 support per door?
A: Sensor capacity and wiring specifications are not available in the product evidence. Consult the detailed datasheet or your integrator for per-door input/output capacity and sensor wiring requirements.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
I've specified the Comelit 909030155 in several multi-tenant and campus-wide access projects, and the two-door-per-unit architecture paired with PoE+ power delivery makes real sense when you're consolidating infrastructure into a central rack. You're trading geographic distribution for density and operational simplicity — all your access logic lives in one monitored cabinet instead of scattered across multiple buildings or floors.
Technical Highlights:
- Dual-Door Architecture: Two doors per controller unit cuts the number of rack slots and power connections you need versus deploying separate single-door controllers — direct cost reduction and fewer points of failure in a centralized cabinet.
- PoE+ Power Only: Relies entirely on 802.3at PoE+ (30W budget); no 12V or 24V power supply required at the controller. This works if your network switch has PoE+ capacity on the target port, but confirm available power headroom before you commit — one underpowered port means a failed deployment.
- Rack Consolidation: 19-inch standard mount integrates neatly alongside NVRs, network switches, and other security appliances in a single cabinet — simplifies cabling runs, reduces environmental control costs (one climate-controlled space instead of multiple), and makes audits and maintenance faster.
Deployment Considerations:
- Verify PoE+ availability and wattage on your target switch ports before ordering. A single PoE+ switch port failure cascades to both doors on this controller — if high availability is critical, you'll need redundant power paths or a backup power supply (not standard on this unit).
- The two-door limit may constrain you if you later need to add a third access point — you'll have to deploy a second controller and manage two separate units instead of a four-door or higher-capacity variant.
- Confirm with your Comelit integrator that the 909030155 firmware revision supports your specific credential readers and any custom access rules (time-zone scheduling, multi-factor workflows, etc.) before final purchase.
The 909030155 is the right call for centralized multi-building access where your network infrastructure already converges in a security rack and you have the PoE+ power available. Skip it if your access points are too geographically dispersed to justify a central controller, or if you anticipate four or more doors in a single zone — move up to a higher-capacity Comelit access control module instead.
