X1100 Door Controller (ADC-AC-X1100) - Data Sheet
Alarm.com’s Smarter Access Control is a powerful, easy-to-use solution for commercial properties that seamlessly integrates with the Alarm.com for Business platform. This platform enables intelligent automation and features, such as disarming when badging in, locking doors when arming, and tagging access events on the video timeline.
The X1100 Door Controller supports two readers with four relay outputs and four programmable inputs. For larger installations, the X1100 controller can manage up to 64 doors by connecting up to 32 X100 Two Reader Expansion Modules together.

Controller features
- 12 to 24 VDC input power
- Two dedicated reader inputs
- Support for 32 expansion modules and up to 64 readers
- Four relay outputs
- Four programmable inputs
Smarter Access Control Benefits
- Scan-to-add card format and serial detection
- Control doors and manage users from the Alarm.com app
- Integrated Alarm.com intrusion and video offerings
- User-friendly, flexible scheduling
- Configure hardware using web or app for easy installation
- Plug & play installation — no networking expertise required
- Message buffer of up to 50,000 events
Specifications
Important: The interface is for use in low-voltage, Class 2 circuits only. The installation of this device must comply with all local fire and electrical codes.
| Input Power | 12 to 24 VDC ±10%, 550 mA max excluding reader voltage |
|---|---|
| Reader Power |
12 VDC ±10%, 500 mA max allowed each reader Note: Power is automatically regulated to 12 VDC. |
| Communication | Shielded 2-Wire RS-485 |
| Inputs | Two dedicated reader inputs Four programmable inputs One dedicated input for each of the following: Tamper, AC Fail, and Battery Fail |
| Outputs | Four relay outputs 5 A (NO) and 3 A (NC) @ 30 VDC Two-wire LED control Single-wire buzzer output |
| Certifications | FCC, CE, UL 294 Certified |
| Dimensions (W x L x H) | 6.46" x 5.51" x 1.02” (16.4 cm x 14 cm x 2.6 cm) |
| Temperature |
32°F - 158°F (0°C - 70°C) operational -67°F - 185°F (-55 - 85°C) storage |
| Operating Humidity | 5-85% (non-condensing) RH |
| Availability | Distribution |