Instruction manual

Designing and Planning an M2150 System

Access Control Design Guide

Planning for Elevator Control

The elevator controller is an M2150 node that can be used to control access to elevator floors. The node

interfaces with the elevator control system and floor-selection panel to ensure that the card holder is

delivered only to authorized floors.

The node supports up to:

• 64 floors for a single-cab system. For more than 32 floors, a slave unit is also required.

• 32 floors for a two-cab system (32 floors per cab). If more than 16 floors is required for either cab, a

slave unit is also required.

• 16 floors for a three-cab or four-cab system (16 floors per cab). A slave unit is also required for this

configuration.

The node contains a power supply, DBU, elevator interface board and two relay boards. The slave unit is

contained in its own cabinet, with an RS485 communications link to the master.

Each cab is fitted with a separate access control reader (20mA or RS485). All readers connected to the

same node must be the same type. Wiegand readers can be used if a 650 Mullion Reader Interface (MRI)

is fitted between the reader and the elevator controller.

Note: Only 20mA readers have been evaluated for use in UL Listed Systems.

The following sections explain additional issues that you should consider.

Siting of Elevator Nodes

Determine where each elevator node is to be sited, and mark this on the Site Schematic:

• On top of the elevator car?

• In the elevator equipment room?

Note: For ease of servicing, it is recommended that an elevator node is NOT installed on the top of the

elevator car. Every service call for the node will require coordination with the elevator manufacturer, which

may be costly and time-consuming.

Enable All and Enable Select Modes

You need to determine whether to use Enable Select or Enable All mode for each elevator node:

Enable Select Mode

With Enable Select Mode, the node monitors each floor button to recognize which button is

pressed. This enables the SMS software to log the floor that the card holder selects and to generate

alarms when, for example, an invalid card is used or an unauthorized floor button selected (as

determined by the card holder's access rights).

To implement Enable Select mode, there must be two pairs of contacts for each floor-selection

button: one set for connection to the elevator interface board, and the other set for connection to the

elevator controller and/or elevator control system.

After a valid access-control transaction at the elevator reader, the card holder is given four seconds

to select a floor button. The elevator node determines which button has been selected, and if the