The Notifier ACT-4 is an audio coupling transformer used to electrically isolate DVC-AO analog audio risers. First, it breaks ground loops between risers fed by different power supplies. As a result, audio stays clean across multi-cabinet DVC voice systems.
What the Notifier ACT-4 does
The DVC-AO option board on a Notifier DVC drives up to four analog audio output channels. Specifically, the ACT-4 sits on those analog risers to provide galvanic isolation. In addition, it helps prevent common-mode noise from coupling between cabinets.
Where the ACT-4 is required
The ACT-4 is required when DVC-AO analog risers cross between cabinets with separate power supplies. Therefore, it is a key part of large distributed AA-Series amplifier installations. Also, it is part of the standard Notifier DVC system accessory line.
Specifications
- Notifier part number: ACT-4
- Function: electrical isolation for DVC-AO analog audio risers
- Typical application: multi-cabinet DVC systems with multiple power supplies
- Compatible system: Notifier DVC / DVC-EM Digital Voice Command with DVC-AO option board
- Reference datasheet: NOTIFIER DN-7045 (DVC Series Digital Voice Command)
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 3.5 × 6 × 2 in |
| Condition | New |
| Manufacturers | Notifier |
| Part Type | Replacement Part |







