Optoma Panoview Graywolf II - Manual (Page 9)

N0.8
For 12V trigger: Input 12V trigger signal, screen goes
down. Stop this signal, screen goes up.
Electric lock: Press the Up & Down buttons on the IR
handset together, then all Up & Down buttons on the switch
and IR handset will be locked. To be unlocked press Stop
button on the IR handset again or unplug the power supply
and plug in again.
Keeping the screen rolled in its protective case when not
in use. Always examine both front and back of surface
before re-rolling into case to make certain screen is free of
dust, dirt or other foreign matter.