The CKB312, the 12-Channel Video Bridge.  

• Supports 12 Mounted Camera Streams, with accompanying Blue status LEDS for each mounted channel.
  
• Arming Configuration: End-User Mobile App or a Programmable (0-12 VDC) voltage input.
• Each stream still has the independent hardware input location just like the 4 Channel CKB304 you are familiar with
• Includes 4 Isolated Relays, independently configurable in the Portal for automatic or manual activation
  
• 3.5 mm Audio Output for Talk Down
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• Alarm Panel Wiring: