Circuit & System Protection


ISDN surge protector

25 September 2002 Circuit & System Protection

The MJ8 2RN module is designed to protect ISDN subscriber terminals (TO/SO level, basic access). The MJ8 2RN from Citel uses standard ISDN connections (RJ45 modular jack), allowing instant installation.

The protection combines a gas discharge tube with fast clamping diode. Response time is 1 ns. The product needs no special maintenance (it returns to its initial state after a disturbance has been discharged). But if a major fault occurs, the surge protector sacrifices itself (line/ground short-circuit): the resulting interruption of transmission reports the fault and the protector must then be replaced.





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