3600 Series Flat Panel Industrial PC
Chapter 2 – Installation
35
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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 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
connector 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.
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.
Note
This warning does not apply to the front panel keyboard and USB interface
connectors. These connections are nonincendive circuits. Please refer to the
Hazardous Locations control drawing on page 36.