The IC660BBR101 is a Normally Open Relay Output Block from GE Fanuc, designed for versatile low-power applications including relays, lamps, and contactors. This output block features 16 output circuits organized into four groups of four outputs each, enabling efficient management of power. It operates on a selectable rated voltage of 115 VAC (factory setting) or 230 VAC, with voltage selection facilitated by jumpers on the module's assembly. Supporting both AC and DC power supply, the load current is rated at 2 Amps, and it offers isolation of 1500VAC between output circuit groups. Customization of the relay output is straightforward with a handheld monitor, which allows for configuration of power-up output actions, restoration to factory settings during electrical communication interference, and selection of redundancy types. Additionally, the IC660BBR101 can function as a bus switching module (BSM). Status indicators in the form of LEDs provide real-time feedback on unit performance, with a blinking LED signaling a circuit fault, an OFF state indicating a lack of power or a fault in the block, and a steady ON light denoting optimal performance. For users requiring a normally closed relay configuration, the IC660BBR100 is recommended. The product operates within a frequency range of 47 to 63 Hertz, with an operating temperature range of 32 to 140 degrees Fahrenheit and a storage temperature range of -40 to 212 degrees Fahrenheit.