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The Vision EV5-255 Galvanic Isolator is ideal as a critical safety device 
when the trunk cable of an IRS installation joins two buildings together. 
Where two buildings are joined across different phases of the mains it is 
likely that an earth potential difference is created and a high balancing 
current flows across the coaxial cables. EV5-255 isolates one building 
from the other at up to 2kV but allows the RF signal to pass with minimal 
insertion loss. 
EV5-255 can also be used as a 5-core DC block. 
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