Perforating apparatus, firing assembly, and method

A firing assembly for activating a perforating device and perforating a subterranean earth formation through a wellbore lined with casing, said perforating device comprising a module having a first chamber and a second chamber, said first chamber including a first gun assembly and said second chamber including a second gun assembly, said firing assembly comprising:

• a firing head for transferring ballistic energy to the perforating device, said firing head having a detonator and a plurality of ballistic charges, said detonator coupled to at least one of said first gun assembly and said second gun assembly;
• a remote telemetry device for sending a detonation signal
• a transmission medium for transmitting said detonation signal to said firing head;
• and
• a receiving device for receiving said detonation signal and a processor for interpreting said detonation signal and activating said detonator, said detonator causing at least one of said plurality of ballistic charges to explode and detonate at least one of the first gun assembly and the second gun assembly
• an isolating device to prevent short circuiting of said remote signaler after detonation of the at least one of the first gun assembly and the second gun assembly;
• wherein said firing head is further comprised of:
• a low voltage power source;
• and
• a high-voltage device, said high-voltage device elevating a low voltage delivered from said low voltage power source to a higher voltage sufficient to activate said detonator.