Packaged intrinsic safe industrial modem

A packaged cellular modem system (modem system), comprising:

• a printed circuit board (PCB) upon which said modem system is configured on;
• at least one supercapacitor having electrodes coupled for receiving power from a DC power source, a DC-to-DC converter having inputs is coupled to said electrodes, a cellular modem coupled to an output of said DC-to-DC converter and coupled to an antenna through a first intrinsic safety (IS) barrier circuit, and a second IS barrier circuit coupled to an output of said cellular modem;
• a microcontroller control section including a microcontroller is coupled to a boost regulator having an output coupled to said electrodes for receiving power, and a metrology jumper coupled between said microcontroller and a ground pin;
• input/output (IO) connectors coupled to said cellular modem, wherein all said IO connectors are located on one side of said modem system;
• an encapsulation material providing a potted area of said PCB which pots said supercapacitor, said DC-to-DC converter, said cellular modem, said second IS barrier circuit, and said microcontroller control section;
• a Subscriber Identity Module (SIM) card inserted into a SIM connector that is coupled to said cellular modem by said second IS barrier circuit;
• LED's coupled to said microcontroller,
• wherein said SIM card and said LEDs are in a non-potted area of said PCB;
• a visible light transparent SIM card access cover (transparent cover) over said SIM card and over said LEDs having a hinge pivoted to an encapsulation separator for lifting said transparent cover to expose said SIM card for providing access thereto.