Nearside Display Unit And Nearside Combined Unit - Siemens ST950 Plus+ User Manual

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ST950 Plus+ User Manual

Nearside Display Unit and Nearside Combined Unit

Nearside Display Units and Nearside Combined 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 46 : Nearside Indicator and Combined Unit
Connection to the Nearside Unit is via the standard housing aperture on the rear – see Figure
47below. The signal and power cable will be derived from the Pole Top Board (reference section
4.1 for details), using the six-way dropper cable.
Nearside Display Unit Earthing Requirements
The Nearside Unit requires a separate Earth wire to be fed from the Pole Top Earth Terminal or other
Pole Earth points (sometimes derived from the CET gland on the armoured cable termination) and
connected to the earth terminal on the Nearside equipment.
ST950 Plus+ User Manual
Page 86 of 176
667/HE/53000/000
Issue 2
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