Check the listing for details. AIphone GT-VBX Expanded Video Control Unit. Condition: New – Open box. Listed at 209.00 USD. The GT Series supports up to 500 tenant stations, which can communicate hands-free to a mAXimum of 16 entry panels and four security guard stations. The 170-degree entry station camera with PanTilt Zoom provides complete entry visibility. Choose from a one-piece stainless steel entry panel or easily configure the entry panels using either direct select or digital keypad. Features: *Power Supply: 24V DC - Use PS-2420UL (for GT-BC, GT-VBC, GT-NS, GT-MK, GT-BCX, and GT-2C) *Current Consumption: GT-BC: 0.9 A, GT-VBC: 0.9 A, GT-NS: 0.13 A, GT-MK: 0.18 A, GT-BCX: 0.35 A *GT-2C: 0.26 A, GT-2H: 0.11 A *Call Tone: There are three different types of call tones: from entrance station, security guard station, and doorbell *Talk & Video Path: Secure single channel *Communication: Hands-free, voice-actuated communication or push-to-talk communication *Door Release: Connecting terminals: between ELM - ELC (N/O) and ELB - ELC (N/C) Specifications: less than 4A (resistance load), 24V AC/DC, dry closure contact *Wiring: Two conductor cables (Aiphone #872002 for audio and Aiphone #871802 for video) -*Type of Cables: Pair cable (solid wire - not stranded), polyethylene insulated, low cap, diameter 20AWG-18AWG Condition: The item is “open box” but never used. Does not come with original box.