Product Selection Guide

I N T E R C O M S 2645 Federal Signal Dr., University Park, IL 60484 Tel: +1 708.534.4756 Email: [email protected] www.fedsig.com | 351 S P E C I F I C A T I O N S Single And Dual Direct Dial Sub-Stations (E-DD1 and E-DD2) Operating Voltage: 24VDC nominal (line driven from ECHO control) Current Idle: 250 mA Current Connected: 650 mA Microphone Type: Electret Microphone Sensitivity: -70dBA Audio Output: 1.0 watt Loudspeaker Size: 2.5 in Loudspeaker Impedence: 45 Ohms Volume Control via Keypad: 30dBA in ten steps Line Attenuation: 24dBA@160kb/s Max Loop Resistance: 170 Ohm Max Distance: 1.2 miles 2km Max Cable: One twisted pair, non-shielded Termination Plug-in screw terminal, non-polar Relay Switching Capacity: 5A at 24VDC 3A at 240VAC Net Weight: 1.2 lbs 0.5kg Shipping Weight: 1.5 lbs 0.68kg Shipping Dimensions: 13.25” x 7.13” x 3” 337mm x 181mm x 76mm 4.75" / 120.65 mm 2.38"/ 60.45 mm 10" / 254 mm 8.65" / 48.26 mm E-BB2 Flush Mount Back Box Back box for flush wall mounting, galvanised steel, 0.5 lbs / 0.230 kg E-SMB Surface Mount Back Box Back box for surface wall mounting, anodised aluminum, 0.5 lbs / 0.230 kg H O W T O O R D E R Specify Model: E-DD1 – Wall mounted single direct dial substation E-DD2 – Wall mounted dual direct dial substation O P T I O N A L A C C E S S O R I E S Description Part Number Fiber Optic Interface ECHO-FOTI Back Box For Flush Mounting E-BB2 Back Box For Surface Mounting E-SMB