Alpha 931A-120 Power Supply Handset To Panel

The Alpha Communications 931 amplifier/power supplies are used with the 870W, 8870 and 902 series handset intercom stations (or equivalent), to provide amplification, power operate electric door opener(s) etc., signal handsets from lobby entrance station.

The units each require a standard 120VAC source.

These designed easily surface mount right onto finished wall by means of customer supplied screws. Connections positive screw terminal type.

Only one (1) is required for system, regardless number in building.

Features

• Easily Installs on or Housing
• Only supply per system
• Clear Voice Fidelity Adjustable Volume Control
• Convenient Connections
• Operates primary power