Fire-Lite Alarms MS-9200 Technical Manual page 29

Shielded Wire Termination Requirements Shielded Wire Termination Requirements Shielded Wire Termination Requirements Shielded Wire Termination Requirements Shielded Wire Termination Requirements
Shielded wire is recommended for use on the SLC loop, EIA-485 and EIA-232 circuits (refer to Appendix F for addi-
tional wiring information). Proper termination of the shield is shown below for various applications such as no conduit,
partial conduit and full conduit. Nonshielded wire (max. 1,000 feet) may be used on the SLC loop, however, full
conduit is recommended for optimum EMI and RFI protection.
Figure 2.10: Shield Termination in No Conduit Figure 2.10: Shield Termination in No Conduit Figure 2.10: Shield Termination in No Conduit Figure 2.10: Shield Termination in No Conduit Figure 2.10: Shield Termination in No Conduit
Figure 2.11: Shield Termination in Full Conduit Figure 2.11: Shield Termination in Full Conduit Figure 2.11: Shield Termination in Full Conduit Figure 2.11: Shield Termination in Full Conduit Figure 2.11: Shield Termination in Full Conduit
MS-9200 MS-9200 MS-9200 MS-9200 MS-9200
Cabinet Cabinet Cabinet Cabinet Cabinet
Figure 2.12: Shield Termination in Partial Conduit Figure 2.12: Shield Termination in Partial Conduit Figure 2.12: Shield Termination in Partial Conduit Figure 2.12: Shield Termination in Partial Conduit Figure 2.12: Shield Termination in Partial Conduit
Nonshielded Wire
Technical Manuals Online! - http://www.tech-man.com
MS-9200 MS-9200 MS-9200 MS-9200 MS-9200
Cabinet Cabinet Cabinet Cabinet Cabinet
Shield Drain Wire
The shield must not be connected to earth
ground at any point.
Shield Drain Wire
Shield Drain Wire
Note: Must employ metal conduit Note: Note: Note: Note:
and a metal box.
MS-9200 MS-9200 MS-9200 MS-9200 MS-9200
Cabinet Cabinet Cabinet Cabinet Cabinet
Document # 50428
firealarmresources.com
SLC Loop + SLC Loop + SLC Loop + SLC Loop + SLC Loop +
SLC Loop - SLC Loop - SLC Loop - SLC Loop - SLC Loop -
SLC Loop + SLC Loop + SLC Loop + SLC Loop + SLC Loop +
SLC Loop - SLC Loop - SLC Loop - SLC Loop - SLC Loop -
Shield Shield Shield Shield Shield
SLC Loop + SLC Loop + SLC Loop +
SLC Loop + SLC Loop +
SLC Loop - SLC Loop - SLC Loop - SLC Loop - SLC Loop -
Rev. B1 7/28/97 P/N 50428:B1
All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring
Do not allow the shield drain wire to
enter the system cabinet. Connect
the drain wire to the outside of the
cabinet via a BX-type connector.
All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring
The shield drain wire must be
connected to the shield terminal
TB6, Terminal 1 or 2. Do not allow
the shield drain wire or the shield
foil to touch the system cabinet.
For Style 6 or 7, connect only one
end of the shield to TB6.
All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring All Styles of Wiring
Do not allow the shield drain wire to
enter the system cabinet or the
conduit. Connect the drain wire to
the termination point of the conduit
run (such as a single-gang box as
illustrated above). The conduit
cannot be longer than 20 feet.
29