Methods of delivering power to communications network equipment and related systems and coaxial cables

A coaxial cable comprising:

• a center conductor;
• a center conductor pin having an end that faces an end of the center conductor;
• and
• a spring made of metal that extends around the center conductor pin;
• a movable dielectric stop that is between the spring and the end of the center conductor;
• and
• a bayonet connector that extends around the movable dielectric stop and the end of the center conductor pin;
• wherein the end of the center conductor is electrically connected to the end of the center conductor pin when the spring is compressed,
• wherein the end of the center conductor is electrically disconnected from the end of the center conductor pin when the spring is relaxed;
• and
• wherein the movable dielectric stop is configured to retract from between the end of the center conductor pin and the end of the center conductor, in response to rotating the bayonet connector.

A method of delivering electric power to equipment of a communications access network, the method comprising:

• generating an alternating current (AC) power signal having a frequency between 10 kilohertz (kHz) and 500 kHz that is transmitted via a coaxial cable that is coupled between the equipment and a power monitor;
• identifying, using the power monitor, a reflection of the AC power signal via the coaxial cable to the power monitor;
• and
• adjusting a voltage of the AC power signal in response to identifying the reflection.