NEC DTU-70 Instruction Manual page 28

(9) When mounting a PA, be sure to mount the PA to come to the end position. In this
case, be sure to check if other PAs on the rack are disconnected by shock during the
mounting work.
(10) When mounting/dismounting a unit (exciter, TX control, etc.), take care so that the
cables on the rear space are not caught up with the unit.
(11) Do not operate the transmitter with the external interlock circuit strapped. In such a
case, unexpected accident may be caused.
(12) In case that a PA is stored to the storage or is shipped back to the repair center, be sure
to remove cooling water completely from the PA by using FOOT PUMP attached as a
part of accessories.
Disposing of your used NEC product
In the European Union
EU-wide legislation as implemented in each Member State requires that used
electrical and electronic products carrying the mark (left) must be disposed of
separately from normal household waste. This includes transmitter or electrical
accessories, such as interface-connectors.
When you dispose of such products, please follow the agreements made by between
you and NEC. The mark on the electrical and electronic products only applies to the
current European Union Member States.
Outside the European Union
If you wish to dispose of used electrical and electronic products outside the
European Union, please contact your local authority and ask for the correct method of
disposal.
"This equipment complies with IEC 61000-3-12 provided that the short-circuit power
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GWP-G22996