Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Figure 13 – HPU Card Links
The standard HPU configuration (used for all UK controllers) links TP1 (Common)
to TP2 (Red Amber Green). For Hardware Fail Flash controllers (non UK only), the
link is fitted between TP1 and TP3 for ST900 Fail Flash operation or TP1 and TP4
for ST950 Fail Flash operation.