The audio connections are protected by a plastic cap/shield and are located on the bottom-end of the column. Two balanced inputs are available for independent wiring for main and priority audio sources. The priority one is available on ceramic terminal blocks with thermal fuse for voice alarm applications.
A fail-safe activation command supports the commutation between inputs. An output logic control allows remotely manage the over-all status of the VSA 2050, for instance when any fault must be addressed to a central system.
AC and DC Power supply connections are positioned on top of the column, protected by a plastic cover. Connectors are VDE type for AC and ceramic terminal block for DC.