Ross FSB-OGX OGX Frame rear support brackets for OGX-series frames, extends to 30 inches from frame. To help reduce mechanical stress due to cable weight, these rear support brackets are available for the OGX-FR frame. The FSB-OGX are specifically engineered to compensate for extra load stress associated with certain applications, such as mobile truck installations, to also support the rear of the OGX-FR frame.