PQFA Instructions ManualAsea Brown Boveri Jumet S.A. 48The last domino of the chain must be fitted with termination jumpers onpositions JP100, JP101, JP102, JP103, JP104, JP105, JP106, JP109 andJP110 (JP107 and JP108 are off).An example of domino boards interconnection is given in Figure 7.3 (PQFA-B+D+C).77..33..11..44.. EEaarrtthh ccoonnnneeccttiioonnThe earth cable of each slave cubicle has to be connected to the earthconnection point of the master cubicle. Make sure that the cables run alongthe floor, not over components.7.3.2. Connections to the supply77..33..22..11.. PPoowweerr ccoonnnneeccttiioonnThree power cables (L1, L2, L3) have to be connected to each circuit breaker(one in each cubicle).Make sure that L1, L2 and L3 in each cubicle are connected to the samephases.77..33..22..22.. PPrrootteeccttiivvee eeaarrtthhThe protective earth point of each cubicle has to be connected to earth.The connections to the supply are represented in Figure 7.3.