What is paralleling?

• A. Cross connecting two or more S/P CKTS.
• B. Connecting in series.
• C. Isolating signals.
• D. Increasing impedance.

Answer: (A)

Paralleling means cross-connecting two or more S/P circuits so they run in parallel and carry the same signal. By tying the circuits together, the same message is fed to multiple listening points at once, so more than one operator can hear or monitor the line without re-routing through a single path. This setup is handy on a ship when you want simultaneous access for different stations or when you need redundancy.

Think of it as giving several paths that all carry the same voice signal at the same time. This is different from wiring in series, which would force the signal to pass through each circuit one after another and wouldn’t provide shared listening for multiple stations. Isolating signals would defeat the goal of sharing, and increasing impedance would work against having multiple paths feeding the same signal.