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9465/9465KPM System Manual
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sibility of the customer to ensure that the power switch selected for their installation has
the correct hazardous locations rating for the location in which it is installed.
Cable Connections
Division 2 hazardous locations’ regulations require that all cable connections be pro-
vided with adequate strain relief and positive interlock. USB connections can never be
used in hazardous location installations, because USB connectors do not provide ade-
quate strain relief. 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 in-
clude both copper braid and aluminum foil. The D-sub style connector housing should be
a metal conductive type (e.g., molded zinc) and the ground shield braid should be well
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 con-
nector strain relief in order to ensure that a reliable degree of strain relief is maintained.
Always secure the D-Sub connectors to the 9465 workstation mating connectors via the
two screws located on both sides.
Warning
Never connect or disconnect the communication cables while power is
applied at either end of the cable. This may result in an incendiary spark.
Permanent damage to the workstation communication components may
occur.
Operation and Maintenance
The systems have been designed for compliance with relevant spark ignition tests. How-
ever, please note that the workstation front panel contrast adjustment tactile switches and
keyboard connector are the only make/break components intended to be exercised by the
operator in the course of normal operation.
Warning
To maintain a safe condition, never use an external keyboard or mouse or
USB port devices when the unit is operating in a hazardous environment.
Always observe the following rules with respect to hazardous location installations:
1. Always install the workstations within an enclosure suitable for the specific applica-
tion. General purpose enclosures may be acceptable for Class I applications but are
never acceptable for Class II applications. Type 4 (IP 65) enclosures are recom-
mended even when not required by regulations.
2. If present, keep enclosure doors or openings closed at all times, to avoid the accu-
mulation of foreign matter inside the workstation.
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