From MorphOS Library
PowManTool - Very simple shell tool to control GemBird SIS-PM Silvershield PowerManager sockets/outlets.
SOCKET=OUTLET/N, ON/S, OFF/S, TOGGLE/S, STATUS/S, UNIT/N/K
SOCKET=OUTLET/N - number of the socket to change. If not given, command applies to all four sockets. ON/S - enable power on the given socket(s), or when used with STATUS/S, return OK when socket is powered, WARN otherwise. OFF/S - disable power on the given socket(s), or when used with STATUS/S, return WARN when socket is powered, OK otherwise. TOGGLE/S - switches power off, if it was powered before, or on, if it wasn't. When used with STATUS/S, it will first toggle the socket(s), and then check, if it or they are now on (see ON/S). STATUS/S - checks the status of one or more sockets. Normally returns WARN, if one or more sockets are turned off. OFF/S inverts this check. UNIT/N/K - if multiple power managers are connected, you can choose the right unit with this argument. Defaults to unit 0 of course.
Only devices with Vendor ID = 0x04b4 and Product ID = 0xfd11 are supported.