Interface

External connections are made to two terminal blocks located on the rear of

the M‑2067B Adapter Panel. An additional terminal block provides access to

auxiliary functions, including self‑test alarm, user‑programmable alarm, manual

raise/lower and operations counter.

Features

Binding posts on the front panel allow easy connections for test procedures.

A relay TEST/OPERATE toggle switch with INDICATOR LIGHT for CONTACT

CLOSURE; and a cam switch auxiliary relay (used only for non‑sequential

operation) are standard.

Testing Specifications

High Voltage: All input and output terminals will withstand 1500 Vac rms to

chassis or instrument ground for one minute with a leakage current not to

exceed 25 mA, for all terminals to ground. Input and output circuits are

electrically isolated from each other, from other circuits and from ground.

Surge Withstand Capability: All input and output circuits are protected against

system transients. Units pass all requirements of ANSI/IEEE C.37.90.1-1989

defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected against

electromagnetic radiated interference from portable communications transceivers.