| Type | AS2 |
| Housing, Colour | aluminium die cast, black RAL 9005 |
| Mounting | wall or ceiling |
| Weight | 0,5 kg |
| Call voltage | 24 V AC - 75 V AC |
| Branch exchange voltage | 0 V DC - 63 V DC |
| Input impedance | at 25 Hz Z ≥ 8 kΩ at 50 Hz Z ≥ 4 kΩ |
| Accoustic signal device | loudspeaker |
| Tone types | single-/two-/three or wobble tone |
| Tone frequencies | 5 to 20 Hz in 4 settings selectable via DIP switch |
| Terminals | 1,5 mm2 single or fine wire |
| Cable entry | 1xM20x1,5 |
| Insulation class | I |
