26 M1 Controls & Accessories Two-Way Listen-In Interfaces & Accessories Audio Amplifier Module with Two-Way Listen-In Capability Provides 3 zones of amplified speaker outputs with adjustable volume, along with 3 zones of microphone inputs. The M1TWA can be used to add two way listen-in to M1 Gold Controls or simply to add amplified speakers at keypads and other locations in a building. • Adjustable Speaker Volume Control by Zone • Selectable Mute by Zone • 3 Mic Input Zones (up to 4 mics per zone) • Selectable Mic Listen by Zone or Select ALL • For Two Way Listen-in, compatible with: ELK-M1TWM, ELK-M1TWS, ELK-M1TWSF • For amplified speaker applications, compatible with traditional 8 ohm speakers • Output Impedance Range: ~4 to 32 Ohms per speaker output • Amplifier Rating: 1/2 Watt per Speaker Output • Operating Voltage: 9 to 14 Volts DC • Current Draw: 15mA nominal, 1000mA max • Microphone Current Draw. 5mA each • Housing Dimensions: 4.25" x 6.375" x 2.125" • Circuit Board Dimensions: 2.25" x 3.95" • RoHS Compliant ELK-M1TWA 7 62158 55065 2 M1 Two-Way Microphone Microphone only for use with the M1 Controls two way listen-in interfaces. • Simple two wire connection • High Sensitivity • Up to 12 may be connected • Operating Voltage: Powered from M1TWA, M1TWI or M1EZ8TWI • Current Draw: 5mA each • Circuit Board Size: 1.63" diameter • RoHS Compliant ELK-M1TWM 7 62158 55023 2 M1 Two-Way Speaker/Microphone Microphone and 20 Watt Speaker combination for use with the M1 Controls two way listen-in interfaces. • Requires 4 conductor cable • Up to 12 may be connected • Color: White • Size: 4.25" x 4.25" x 2.13" • RoHS Compliant ELK-M1TWS 7 62158 55022 5 M1 Two-Way Flush Mount Speaker/Microphone Flush Mount 12 Watt Speaker and Microphone combination for use with the M1 Controls two way listen-in interfaces. • Fits single gang electrical boxes • Requires 4 conductor cable • Up to 12 may be connected • Color: White • Size: 4.81" x 3.13" x 1.69" • RoHS Compliant ELK-M1TWSF 7 62158 55074 4 M1 Gold Two-Way Listen-In Interface This can be used by Central Station to verify an alarm, or by a user from the M1Gold telephone remote control to check on elderly parents, children, etc. • Adds up to three (3) zones of two way listen-in to M1G Control • Up to 12 microphones may be connected • May be removed from included housing and mounted on optional glides in ELK structured wiring enclosures • Module powered by M1 Gold • Compatible with: ELK-M1TWM, ELK-M1TWS, ELK-M1TWSF • Includes 8 conductor interface cable • Housing: 4.375" x 3" x 1.125" • Board Size: 3.5" x 2.75" x .75" ELK-M1TWI 7 62158 55021 8