The F39JG20AL is a single-ended connecting cable designed specifically for the emitter of an F3SG-R series safety light curtain. This accessory cable has a length of 20 meters and is terminated with a 5-pin female M12 connector. The gray cable contains five wires for +24 VDC power, a TEST signal, and 0 VDC, with two wires being unused. It is used to connect the emitter to a power source or to a double-ended extension cable, providing a durable and reliable connection for safety applications.