A nonlinear optical loop mirror having a first optical coupler including first and second optical paths directionally coupled together, a loop optical path formed of a nonlinear optical medium for connecting the first and second optical paths, and a second optical coupler including a third optical path directionally coupled to the loop optical path. The system provides for an electrically powered normal source of pressurized hydraulic brake fluid, and a manually powered backup source of pressurized hydraulic brake fluid to the vehicle brakes in the event of failure of the normal source. A contact surface is configured to slidingly contact another surface, such as a rod, and defines a contact axis that is parallel to the body axis. Upon determining that the country of operation does not correspond to the country associated with the first emergency number, a second emergency number associated with the country of operation is determined. Various types of peripherals such a CD-ROM or DVD drive may be installed in the base of the stand. The invention also relates to a device for carrying out the method.