For TwinBus video door intercom systems with color image reproduction. Brilliant color TFT display with 89 mm display diagonal, 320x240 (RGB) pixels and LED backlight. 10 ring tones selectable. Ring volume adjustable in 8 levels. Call mute switch with optical feedback. Optical call display. Night design. Light switch function. Door opener button. Camera control in conjunction with porter camera module 18787 or camera switch 14915. Ring tone differentiation for door calls and floor calls. Control of display brightness, color and contrast. Display protected against scratches by protective film. The system is listen-in and view-in locked as standard. Button for answering/ending a call. Voice volume adjustable. Menu-supported operator guidance and commissioning via on-screen display (OSD) in 13 languages. Dimensions: 91x221x24 mm (WxHxD). Temperature range: 0 degrees to 40 degrees C. Accessories: ==>Table mounting with table console 17313..
