UNIT, METERING No. 1A

These Metering-Units were used on P.M.B.X.'s when subscriber metering was required.  The unit was powered from the P.M.B.X.'s power supply.  On large P.M.B.X. installations a separate power supply would be fitted.

They could operate totals or resettable meters.

Superseded by the Metering-Unit No. 3.

Click her for a detailed description - Telephones, PBX, A1001.

Click here for metering schemes and apparatus required - Telephones, PBX, B3104.

Click here for a POEEJ article - 1959.

The cover has been removed from the mounting plate - three units can be mounted if required

Last revised: January 18, 2024