Master Monitor - The KB-3MRD is a master monitor that allows the connection of up to three video door stations and 4 additional sub monitors. The Unit features a TFT color monitor, a handset for private communication, a door release button, call-in LED's, tilt control, all-call, door chime volume control, and individual call buttons for other monitors in the system.

Main Features

• Internal All Call
• Chime and receiver volume control
• Optional selective door release with RY-3DL
• Two-way communication between inside stations
• Video identification and monitoring with 4? screen
• Instant voice call-in with image
• Built-in illumination for low light conditions
• Selective Call
• Video out to DVR via supplied connector

Specs

• Communication: Handset (full-duplex)
• Video Display: 4" LDC screen
• Door release: N/O dry contact, 12V AC, 400mA (use RY-24L for larger contact rating or RY-3DL for 2 or 3 doors)
• Mounting: Surface mount directly to wall or desk mount using MCW-S/A
• Wire Type: 2-cond., mid-cap, solid, non-shielded - use Aiphone #871802
• Distance:
  Master Station to Door Station: 330'(22AWG) 650'(18AWG
  Master Station to farthest Sub Master Station: 165'(22AWG) 330'(18AWG)
  Power Supply to Master Station: 16'(22AWG) 33'(18AWG)
  Power Supply to Sub Master Station: 16'(22AWG) 33'(18AWG)