| Power Source | 18V DC - Use PS-1820UL |
| Calling | Chime, image and audio approx. 45 sec. |
| Communication | AUTOMATIC
(hands-free) - to activate, momentarily push TALK button MANUAL
(push-to-talk/release-to-listen) - to activate, push TALK button for 1
sec. or until talk LED turns on |
| Video Monitor | 3-1/2” direct-view TFT color LCD |
| Scanning Line | 525 lines |
| Minimum illumination | 5 Lux at 1'-5/8" distance |
| Night Viewing | Up to 1’-5/8" from camera, with white LED projected, background beyond 1'-5/8" cannot be seen |
| Door Release | Contact rating: 24V AC/DC, 500mA Use RY-18L for larger contact rating |
| Wiring | Door to master: 2-cond., mid cap, solid, non-shielded Master to sub: 4-cond., mid cap, solid, non-shielded |
| Distance | Door to farthest master/sub master: 165’(22AWG) 330’(18AWG) Master to IER-2: 245’(22AWG) 490’(18AWG) |
| Wire Type | Master to door: Aiphone #871802 Between masters/sub: Aiphone #871804 |