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A-2 Appendix A: Transient Protection
• Be listed by the accepted safety organization for the country
involved (UL, CSA, VDE, ETL, and so on) and the installation must
conform to local, state, and national electrical codes and
regulations.
Data Line Transient Protection
The nature of the transient phenomenon may extend to the data
communication lines connected to this equipment. It is the
responsibility of the customer to install and connect a data line
transient suppression system to correct or prevent any deficiencies.
Such systems must meet the following minimum requirements:
• Be of the voltage limiting type and must self-recover after passage
of the transient.
• Insert less than 5 ohms resistance and minimal inductive and
capacitive loading at the operating frequency for non-MIRLAN
data lines, in order to avoid signal degradation.
• Be installed in accordance with all applicable local, state, and
national electrical codes and regulations.
Note: In certain countries, NCR is able to supply both power and data
line transient suppressors as well as a comprehensive line of power
conditioning equipment. For application data, contact your NCR
Customer Services Division Representative.