CHAPTER 2
2-4 IEN HARDWARE REFERENCE 940043-002
SAFETY PRECAUTIONS
This section describes the safety precautions necessary to install the Hypercom IEN series
products.
The IEN chassis is Safety Class 1 equipment provided with a protective ground terminal. An
uninterruptedly safety ground must be provided from the 110VAC supply to the IEN chassis
power connector. Whenever it is likely that the protection has been impaired, the
equipment must be made inoperative and secured against any unintended operation.
Equipment servicing, adjustment, maintenance, or repair must be performed only by
qualified personnel.
CAUTION:
Electrical Safety: Observe all normal electrical safety practices when operating
any equipment attached to an active power source.
Authorized Service: Covers or ground connections must be removed by a
Hypercom authorized service technician.
Fire Hazard: To avoid fire hazard, only use fuses with the required current rating
and of the specified chassis type for replacement. See “Chassis Specifications” on
page 3 for information on fuse requirements for each chassis.
Equipment Damage: If you are using analog voice, do not plug 48 volt voice
interfaces into RS232 or V.35 ports. If the wrong adapter interfaces or cables are
installed in the IEN chassis ports, equipment damage can occur.
Electostatic Damage: Before performing any maintenance on the chassis or the
port processors, ensure that you wear a static strap and are grounded to the IEN
chassis.
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