Siemens ST950 Plus+ - Pedestrian Demand Unit (PDU)

ST950 Plus+ User Manual
ST950 Plus+ User Manual
Page 80 of 176
667/HE/53000/000
Issue 2
Unrestricted
Pedestrian Demand Unit (PDU)
Pedestrian Demand Unit
Instructions for mounting, replacing Helios signal heads, pedestrian signalling and demand
equipment and mounting items such as the Solar Cell can be found in the Helios Handbook
667/HB/30000/000.
Figure 43 : Pedestrian Demand unit (PDU)
Connection to the PDU is via the standard housing aperture on the rear – see