Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Full installation detail can be found in drawings 667/GA/33075/000 and
667/GA/33074/000. The secondary windings of the transformer should not be
earthed directly.
4.21 ELV Compatible Nearside, Wait and Demand
Compatible units are clearly marked with ELV labels both externally and internally.
However, PCB assemblies can become swapped during servicing which may then
cause lamp monitoring failures. The Siemens Nearside and Wait/Demand units are
only fully compatible with ELV controllers when fitted with PCB issues as shown in
the table below.
Visual identification of the ELV compatible assemblies is described within the
Appendix – Visual Identification of ELV PCB. assemblies in the Helios General
Handbook 667/HB/30000/000 revision 14 onwards.
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