Glossary - Smoke Guard M200 Installation Manual

Doc #2401 – M200/M400 Installation Manual
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– Glossary

AC – Alternating Current, this refers to the primary power source of the M200/M400.
AHJ – Authority Having Jurisdiction.
Battery – The M400 can be optioned with a battery which provides emergency backup power in the event
primary power is lost.
BOM – Bill of Materials, a detailed list of parts shipped with the unit.
Brake – Some versions of the M400 use an electromagnetic brake in the motors to stop the curtain.
Calibration – The process which captures the total travel distance of the curtain. This value is used by the
Controller to keep track of the curtain position.
Curtain – The sealing component of the M200/M400 that adheres to the elevator frame or auxiliary rail to
contain smoke. Used interchangeably with Screen.
EOL – End-of-Line diode, a component located at the smoke detector which maintains a circuit between the
M200/M400 and the smoke detector.
Housing – Refers to the metal components which house the M200/M400.
Key Switch – The Key Switch is an option on the M400 that will allow the unit to deploy for testing purposes.
The key is given to the building manager following installation of the unit.
LAS – Local Alarm System, refers to the building's alarm circuit which commands the M200/M400 to deploy.
Layout Sheet – The Layout Sheets are a series of documents shipped with the M200/M400 that show how the
system is to be organized prior to installation.
LED – Light Emitting Diode, refers to the lights on the Controller which indicate the status and any errors in
the unit. For more information on LED status and error codes, see Section 8.
Main Controller – The primary controller for the M200/M400. The Main Controller houses status LEDs, the
ON/OFF switch and backup battery (backup battery optional on M400).
NC – Normally Closed contacts of an electrical switch. Used as the initiating device for an M200 or an M400
without battery.
NO – Normally Open contacts of an electrical switch. Used as the initiating device for an M400 with battery.
Screen – The sealing component of the M200/M400 that adheres to the elevator frame or auxiliary rail to
contain smoke. Used interchangeably with Curtain.
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