ELK - AEXIN - Alarm Engine Input Expander

Product Overview

The ELK-AEXIN expands the E27 Alarm Engine by adding 16 hardwired, EOL-supervised zones and one Form "C" relay. It connects via a 4-wire data bus, supporting up to seven units for a total of 128 inputs. Key features include DIP switch selectable EOL resistance and dedicated connectors for a remote power source or backup battery.

Key Configuration

• • Inputs: 16 EOL resistor supervised hardwired zones (plug-in terminals with elevator-style wire clamps and screws)
• • EOL resistance: DIP switch selectable (1.0K, 2.2K, or 3.3K)
• • Relay: 1 Form "C" relay output; contact rating: 4 Amps @ 12VDC
• • Power: 12 VDC; current draw: 85 mA nominal, 120 mA max
• • Size: 6" × 3.25" × 1" H

Key Features

Designed for the E27 Alarm Engine, this expander features DIP switch selectable EOL resistance 1.0K, 2.2K, or 3.3K and a 4-wire data bus interface with an on-board termination jumper. It includes dedicated DC power and battery connectors for remote backup, a diagnostic status LED, and mounts easily using vertical circuit board glides.

Technical Context

This 12VDC expander integrates via a 4-wire data bus, allowing up to seven units to scale a system to 128 inputs. Measuring 6" × 3.25", it features plug-in terminal strips, an on-board bus termination jumper, and dedicated connectors for a backup battery or remote power. The kit includes 18 resistors and vertical mounting glides for streamlined installation.