Key Features (E27 Alarm Engine):

• Hybrid 128-Zone Control: 16 hardwired zones built-in, expandable to 128 zones (via 16-zone input expanders). Supports up to 128 wireless zones as well (via up to 5 RF receivers) – handles both wired and wireless sensors for ultimate flexibility
• Advanced Connectivity: On-board Ethernet port for IP communication (programming, remote control, notifications). Optional Wi-Fi adapter available for installations without a LAN drop. Supports ElkConnect cloud services for remote config and ElkLink integration
• Integrated Automation & Z-Wave: Built-in ElkConnect® Cloud and a dynamic rules engine for complex automation (schedules, link triggers to events). Native Z-Wave support (with ELK-AEZW module) allows control of up to 64 lights, 8 door locks, 4 thermostats, 4 garage doors directly from the panel
• Scalable User/Partition: 199 user codes with flexible authority levels; up to 8 separate areas (partitions) for separating building sections or outbuildings. Ideal for commercial or multi-tenant scenarios needing isolated arming
• Two-Way Wireless & Legacy Support: Supports ELK two-way wireless sensors (via ELK-AERF9 transceiver) and 319.5 MHz one-way sensors (via ELK-AERF3 receiver) concurrently. This dual-frequency capability means existing Interlogix sensors can be reused, or new Elk two-way sensors employed for encryption and feedback

Kit Components:

• E27 Control Board: The main alarm engine printed circuit board with screw terminal zones, aux power outputs, onboard Ethernet, etc. (Firmware upgradable)
• AEKP Keypad: Low-profile addressable keypad for E27 (similar in appearance to M1KP2) – provides local programming and user interface
• Metal Enclosure: 14″ × 14″ × 4″ lockable can to house the board and battery. Comes with lock & keys
• P1426 Power Supply & AC Transformer: 2.6A switching power supply board (supervised) and a plug-in transformer to deliver system power and charge backup battery
• ELK-73 Speaker: 20W 8-ohm interior speaker for panel voice, chime, and siren output (provides loud clear sound for alarms or spoken alerts)
• Misc Hardware: RJ45 jack set for telco line surge protection, resistors for zones (selectable EOL 1K/2.2K/3.3K on expanders or use 2.2K default), battery leads, and documentation

Technical Specifications (E27):

• Zones: 16 on-board (each 2.2KΩ supervised) expandable via up to 7× 16-zone input expanders (AEXIN). 8 on-board outputs (2 siren outputs, 1 Form C relay, 5 programmable low-current outputs) plus expandable via 3× 8-relay output boards (AEXOU) – total 32 outputs max
• Users/Areas: 199 user codes, 8 partitions/areas
• Wireless: Supports up to 5 RF receivers: any mix of AERF9 (two-way) or AERF3 (319.5 MHz one-way). Max 128 wireless zones total. Also supports up to 4 two-way repeaters for larger properties (future expansion)
• Network/Cloud: Ethernet 10/100 on-board. Wi-Fi optional (ELK-AEWF) via USB port. Cloud programming via ElkConnect portal; remote control via ElkLink apps. Supports IP reporting to central station (Contact-ID over IP) and optional cellular module (AEXCC or dial-capture cellular interface)
• Automation/Integration: Built-in web server for local status; REST API available for third-party integration. Z-Wave integration capacity: 64 lights, 8 locks, 4 thermostats, 4 garage doors (with AEZW module). Also supports Elk M1 serial expander devices for legacy integration
• Electrical: 16–18VAC input via transformer. Backup Battery: 12V 8Ah (recommended ELK-1280) giving 24+ hours standby. Aux Power: 1A alarm output, 1A auxiliary, 2A total. Charging: 500mA charger, supervised for low battery and battery fail
• Dimensions (Board): ~9″ × 5.5″. Fits included enclosure with room for battery and expansions. Operating environment: 32–120°F, up to 85% RH (indoor).