Festo VTSA Series Description page 16

Contents and general safety instructions
Term/abbreviation
Vertical pressure supply
plate
VTSA valve terminal
Tab. 0/1: Product−specific terms and abbreviations
XIV
Meaning
Plate on a valve position for individual compressed air supply
VTSA (type 44) or VTSA−F (type 45) valve terminal
With CPX terminal
With FB 21 (type 03)
AS−interface
With multi−pin node (Sub−D, cage clamp, M23 round plug or IC).
Festo P.BE−VTSA−44−EN en 0905e