Instruction manual

Designing and Planning an M2150 System
Access Control Design Guide 17
Safety
The elevator node may have mains electricity connected to the floor relays. Power to the floor relays must
be disconnected before carrying out any installation or servicing work. Make sure that installers are aware
of this safety issue.
Mains wiring must be carried out only by a competent installer. The equipment must be grounded.
In some localities, there are union affiliations or certifications required to work on elevator systems.
Federal Fire Code
For installations in the USA, please consult NFPA 72 National Fire Alarm Code, NFPA 101 Life Safety
Code and the local Authority Having Jurisdiction (AHJ) prior to installing access control readers and locking
mechanisms to any portal in an egress path.
Power for Readers and Free/Secure Indicator
In most cases, power for readers or a free/secure indicator can be sourced from the node's internal 12Vdc
power supply unit. You will need to make sure that the power supply is able to provide sufficient current for
all required devices. The section on page 27 explains how to do this.