Armatura AHEB-0808 I/O Expansion Board, 8 Supervised Inputs and 8 Relays

Overview

The Armatura AHEB-0808 is an add-on board that gives an Armatura Horizon access controller extra alarm inputs and switched outputs. It links to an AHSC-1000 or AHDU controller over a secure RS-485 line and adds 8 supervised inputs and 8 relay outputs, for door contacts, break-glass units, fire signals, sirens, interlocks, lighting or lift floor buttons.

In elevator control mode, it drives lift floor buttons so that people only reach the floors they are allowed to.

Is it right for you?

• Suits an Armatura system that has run out of inputs or outputs on the controller, or that needs lift floor control.
• It only works with Armatura AHSC-1000 and AHDU series controllers, not with other makers’ panels.
• It is a bare board, so plan an enclosure and power supply for it.

Key features

• 8 supervised inputs with 4-state supervision, using 1.2 k, 2.2 k, 4.7 k or 10 k ohm resistors, so the controller can tell a cut or shorted cable from a real alarm.
• 8 Form-C relay outputs with dry contacts.
• Open Supervised Device Protocol (OSDP) v2.2 over RS-485 with an AES-128 secure channel, at 9,600 to 115,200 bps, on cable runs up to 1,200 m.
• Dual firmware for access control and elevator control, switched automatically by the controller.
• Elevator control for up to 128 floors with 16 AHEB-0808 boards on one AHDU controller.
• AC fail, battery fail and tamper inputs, with settings stored in an EAL6+ crypto chip.
• RS-485 in from the controller and out to further AHEB boards, so boards daisy chain.
• 193 x 116 x 17.5 mm, wall mounted; CE, FCC, RoHS, UL 294 and IEC EN / BS EN 60839 Grade 4.

What else you need

An Armatura AHSC-1000, AHDU-1160, AHDU-1260 or AHDU-1460 controller to connect to.

A 12 to 24 V DC supply, plus or minus 20%, rated for up to 550 mA, and an enclosure such as Armatura’s ENC1 series, which lists AHEB boards among its compatible devices.

Shielded twisted pair cable, 22 to 18 AWG, for the RS-485 bus.

Installation

An access control installer should fit it. The job involves wall mounting the board in an enclosure, wiring the RS-485 bus from the controller with shielded twisted pair, fitting the end of line resistors on each supervised input, wiring the relay outputs to the devices they switch, and assigning the inputs and outputs in the software.

Software and licences

Managed through Armatura One Security System, which also selects the access control or elevator control firmware.

Before you buy

• Elevator control depends on the controller it is connected to.