Operation And Maintenance - Xycom 9462 System Manual

9460/9460KP/9462/9462KP System Manual
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 workstation mating connectors via the two
screws located on both sides.
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.
To maintain a safe condition, never use an external keyboard or mouse
when the unit is operating in a hazardous environment.
With respect to hazardous location installations, always observe the following rules:
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.
3. Never subject the unit to any installation or service procedures unless power is
known to be removed and the area is known to be non-hazardous. This includes the
installation or removal of power cables, communication cables, or removal of the
rear cover of the unit.
4. Only technically qualified service personnel should perform all installation and
service. These workstations are designed to require no service in the course of nor-
mal operation by an operator.
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Warning
Warning