Manufacturer Aiphone Model JFS-2AED Power Source 18VDC – Use PS-1820UL Calling Chime, image and audio approx. 45 sec. Scanning 525 lines Video Monitor 3-1/2″ direct-view TFT color LCD Communication AUTOMATIC (hands-free) – to activate, momentarily push TALK button MANUAL (push-to-talk/release-to-listen) – to activate, push TALK button for 2 sec. or until talk LED turns on Door Release Contact rating: 24V AC/DC, 500mA Use RY-18L for larger contact rating Night Viewing Up to 1 from camera, with white LED projected, background beyond 1 cannot be seen Wiring Door to master: 2-cond., mid cap, solid, non-shielded Master to sub: 4-cond., mid cap, solid, non-shielded Wire Type Master to door: Aiphone #871802 Between masters/sub: Aiphone #871804 Distance Door to farthest master/sub master: 165(22AWG) 330(18AWG) Master to IER-2: 245(22AWG) 490(18AWG)