Complex sentence: The standard specifies a maximum open-circuit voltage of 25 volts: signal levels of ± 5 V, ± 10 V, ± 12 V, and ± 15 V are all commonly seen depending on the power supplies available within a device.
Split into simpler sentences: The standard specifies a maximum open-circuit voltage of 25 volts. Signal levels of ± 5 V, ± 10 V, ± 12 V, and ± 15 V are all commonly seen depending on the power supplies available within a device.