DV4 4-zone paging adapters are used with the S.T.R.™ HT2006 series handsets when one (1) to four (4) zones of paging is required. The DV4 has a built-in 10 watt audio amplifier, and can provide that power up to four (4) zones.

The DV4 operates on 16VAC (40VA) low-voltage Class II wiring. Each DV4 requires a separate Model T1640 (U.L. Listed) plug-in transformer. Do not power from the same transformer that is providing power for the intercom amplifier.