MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual
Page 4-12
4.d Shut Down
4.d.1 BBS Shut Down
DANGER: Shutting down the MP2000E does not necessarily disconnect power
to the loads.
DANGER: The disconnected AC input wires from the PTS will still be HOT or
LIVE. Insulate the bare wires using wire nuts.