VAP01 Access Unit


  • Duplicated microphone transducers
  • Monitored microphone voice coil
  • Easy installation, low cost, simple installation


The VAP01 is a rugged corrosion proof microphone unit designed to allow public address/paging system access in external hostile climatic conditions. The VAP01 can be supplied certified to provide safe operation in potentially explosive atmospheres and is ATEX & IECEx certified accordingly. The robust glass reinforced polyester enclosure is equipped with up to three push buttons. Up to two hyper-cardioid noise cancelling microphones are fitted behind a protective wire guard, which can be arranged to each drive, dedicated amplification and loudspeakers.

The VAP01 is equipped with a high performance line driver. The line driver enables the unit to be located remotely from the host loudspeaker amplification. Automatic monitoring is included to supervise microphone voice coil, pre-amplification and critical paths to the central equipment. The access unit VAP01 requires no local mains supply, the unit is energised by phantom power sourced from the host central equipment panel. The connectivity to the unit is via a twisted pair for either the VAP01-11 or VAP01-21 variants and two pairs for either the VAP01-12, VAP01-22, VAP01-13 or VAP01-23 variants.

Technical Data

Protection ClassIP66
StructureMicrophone: hyper-cardioid response noise cancelling type
Dimensions260 mm x 175 mm x 160 mm
(10.24 inch x 6.89 inch x 6.30 inch)
DimensionsColour: black
Material enclosure: GRP Glass re-enforced polyester
Weight2.5 kg (5.5 lbs)
KeyboardNumber of push buttons: up to three push buttons
VoltageMains supply: phantom powered DC 5 V
CurrentCurrent consumption: approx. DC 20 mA
Output VoltageOutput to line: 0 db (770 mV RMS)
FrequencyFrequency response: 100 Hz to 10 kHz
ConnectionGland entry: 2 x M20

*Refer to the documentation for more detailed information



Ex II 2G Ex ib IIC T4
Ex ib IIC T4 Gb

Ambient temperature

-40 °C to +60 °C (-40 °F to+140 °F)



Data Sheet – ATE1 PAGA Expansion Port, VAP01 Access Unit