Overhead Electrical Panel Volmeters Battery 1 & 2 indicator pinouts
All pinouts connect to Concept Concept Voltmeter Interface board.

Voltmeter Bat 1
2441VC, L <-> Display 1 – C
2442VC, F <-> Display 1 – A
2441VC, <P <-> Display 1 – F
2441VC, B <-> Display 1 – H (DIM/TEST CTL AND SPLY)

Voltmeter Bat 2
2441VC, M <-> Display 2 – C
2442VC, T <-> Display 2 – A
2441VC, <P <-> Display 2 – F
2441VC, B <-> Display 2 – H (DIM/TEST CTL AND SPLY)

Reference
AWM 24-37-01, 24-38-01, 24-38-02, 24-91-06, 33-14-27