User's Manual

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digital audio distribution when using multiple AVH21’s for additional zones in expanded
systems.
AVH21 REAR PANEL FEATURES
Figure 75 AVH21 Rear Panel
4. AVH21 Mounting Flange
7. Camera Video Inputs
8. Source Video Inputs
9. Power In
10. Door 1 12/24VDC Latching Trigger Output
11. Door 1 Dry Contact Latching Trigger Output
12. Door 1 12/24VDC Selector
13. Door 2 12/24VDC Latching Trigger Output
14. Door 2 Dry Contact Latching Trigger Output
15. Door 2 12/24VDC Selector
16. Uplink Terminal
AVH21 REAR PANEL FEATURE DESCRIPTIONS
4. AVH21 Mounting Flange: Chassis metal extensions on either side of the AVH21 used for
vertical installation to structured wiring panels or wall surfaces using mounting holes.
7. Camera Video Inputs: 7, female F-type terminals connect to the composite video outputs on
security or zone monitor cameras. The primary AVH21 connects directly to the camera
outputs while the secondary Hubs connect to the Camera Video Bypass Outputs
[pentagon 3] on the previous hub in the distribution chain. (i.e. AVH21 Hub 1 Camera Video
Bypass Outputs [pentagon 3] connect to AVH21 Hub 2 Camera Video Inputs [pentagon
7], etc.)
8. Source Video Inputs: 6, female F-type terminals connect to the Video Source Out
Terminals [circle 37] on the AVR21EN Rear Panel for input of common source composite
video feeds. The primary AVH21 connects directly to the AVR21EN outputs while the
secondary Hubs connect to the Source Video Bypass Outputs [pentagon 1] on the
previous hub in the distribution chain. (i.e. AVH21 Hub 1 Source Video Bypass Outputs
[pentagon 1] connect to AVH21 Hub 2 Source Video Inputs [pentagon 8], etc.) These
inputs allow selection of any available common source video signal to be selected by a zone
keypad or remote.