CUSTOMER INSTRUCTIONS

1.The mounting of the registered unit in the final assembly must be made so that the registered unit is isolated from exposure to any hazardous voltages within the assembly. Adequate separa- tion and restraint of cables and cords must be provided.

2.The circuitry from the registered unit to the telephone line must be provided in wiring that carries no other circuitry unless specifical- ly allowed by the rules (such as PC and PR leads). PC board traces carrying tip and ring leads shall have sufficient spacing to avoid surge breakdown.

3.A modular plug or jack shall be provided which complies with Part 68, Subpart F requirements for dimensions, tolerances metal- lic plating.

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ADTRAN NT1 T400 user manual Customer Instructions