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Document 15949 Rev. E 4/12/95 P/N 15949:E
Shield Termination in No Conduit
Do not allow the shield drain wire to enter the control panel cabinet. Connect the drain wire
to the outside of the cabinet via a BX-type connector.
( + )
( - )
Shield
Shield
FC-2000
Cabinet
Figure 3-9: Shield Termination in No Conduit
Shield Termination in Full Conduit
The shield drain wire must be connected to the negative (-) side of the loop. Do not allow the
shield drain wire or the shield foil to touch the control panel cabinet.
Note: For redundant or isolated redundant field wiring of the communications loop, connect
each end of the shield to the negative side of the respective channel.
( + )
( - )
Shield
Shield
FC-2000
Cabinet
The shield must not be connected to
earth ground at any point.
Figure 3-10: Shield Termination in Full Conduit
Shield Termination in Partial Conduit
Do not allow the shield drain wire to enter the control panel cabinet or the conduit. Connect
the drain wire to the termination point of the conduit run (such as a single-gang box as
illustrated in Figure 3-11). The conduit cannot be longer than 20 feet.
System 5000
Cabinet
System 5000
Cabinet
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