Proface PS4800 - 19 Panel PC" - Manual (Page 24)

Important Information
24
Cable Connections
Division 2 hazardous location regulations require that all cable connections be
provided with adequate strain relief and positive interlock. Use only non-incendive
USB devices as USB connections do not provide adequate strain relief to allow the
use of Industrial Personal Computer USB connections (see page 69). Never
connect or disconnect a cable while power is applied at either end of the cable. All
communication cables should include a chassis ground shield. This shield should
include both copper braid and aluminum foil. The D-sub style connector housing
must be a metal conductive type (for example, molded zinc) and the ground shield
braid must be terminated directly to the connector housing. Do not use a shield drain
wire.
The outer diameter of the cable must be suited to the inner diameter of the cable
connector strain relief so that a reliable degree of strain relief is maintained. Always
secure the D-Sub connectors to the workstation-mating connectors via the two
screws located on both sides.
DANGER
POTENTIAL FOR EXPLOSION
 Always confirm the ANSI/ISA 12.12.01 and CSA C22.2 N
213 hazardous
location rating of your device before installing or using it in a hazardous location.
 To power on or power off a Industrial Personal Computer installed in a Class I,
Division 2 hazardous location, you must either:
 Use a switch located outside the hazardous environment, or
 Use a switch certified for Class I, Division 1 operation inside the hazardous
area.
 Do not connect or disconnect equipment unless power has been switched off or
the area is known to be non-hazardous. This applies to all connections including
power, ground, serial, parallel, network and rear USB connections.
 Never use unshielded / ungrounded cables in hazardous locations.
 When enclosed, keep enclosure doors and openings closed at all times to avoid
the accumulation of foreign matter inside the workstation.
 Use only non-incendive front USB configurations (see page 69).
Failure to follow these instructions will result in death or serious injury.