Alpha Communications® Apt. Intercom Stations (Handset Type)

Apt. Intercom Stations (Handset Type)

5-Wire Apt. Handset Station. Has Carbon Type Microphone. White/Black Color. Mounts right on Surface of Wall or over single gang electrical 'gem' box.

The Alpha Communications®/Elvox™ 902 handsets are designed to work as an apartment type handset intercom station. They are available in a two-tone white/black color. These attractive handsets easily surface mount right on the wall or over a single gang flush electrical back box (or plaster ring). Handsets can be changed to desk mount with the addition of a model 2/901 desk adaptor. All 902 handsets feature electric buzzer signaling, and (2) two momentary button switches. These switches can be used for door release, or other signaling functions, depending upon system configuration.

902

FEATURES

Convenient Duplex Voice Operation

Easy Installation, Low-Cost

Clear Voice Fidelity

Rugged and Reliable

Simple to Operate

Mounts Surface on Finished Wall

SPECIFICATIONS

Dimensions:	Height:	8.75" (223mm) Less Coiled Cord
	Width:	3.55" (91mm)
	Projects:	2.75" (70mm) from mounting surface
Microphone:	Carbon Transmitter Type.
Push-Buttons:	(1) with Door Opener (KEY) symbol and (1) spare.

ARCHITECTS' AND ENGINEERS' SPECIFICATIONS
The apartment handset station shall be Alpha Communications®/Elvox™ 902, in two-tone white/ black color. Handset shall be mounted surface. Handset shall feature carbon transmitter type microphone for high-quality voice fidelity. Handset shall include a door release (KEY SYMBOL) button and auxiliary pushbutton.

REQUIRED COMPONENTS:
931 Amplifier (1 per system), which installs in a separate central equipment location. Requires 120VAC primary power.
DO-001 (or equivalent) 16VAC Door Release.
Lobby Entry Panel (1 per building entry).

OPTIONAL COMPONENTS:

839/302	2-Entrance Relay Adaptor (used in addition to 931 system power supply/amplifier).
839/303	3-Entrance Relay Adaptor (used in addition to 931 system power supply/amplifier).
R1	Pulsating Buzzer Adaptor. Used when you have individual apartment door pushbuttons that need to signal (buzz) the apartment handsets. Converts steady buzzer to pulsating buzzer.
2/901	Desk Adaptor for 902 series handsets.
PK407A	Specialty Relay Adaptor. Used when connecting a door opener other than a 16VAC type to system. One (1) required for each building entry door opener.

WIRING REQUIREMENTS:
Apartment riser wiring shall be 4-common #22AWG and 1 selective wire #22AWG, for each handset station connected to the riser cable. Add 1-#22AWG common wire if there are optional apartment pushbuttons which will also have to signal apartment handset, when visitor is at apartment door (and when using optional R1 pulsating buzzer adaptor). See system wiring diagram for more complete wiring information.