Johnson Controls Metasys Intelligent Fire Network Technical Manual page 20

Table 6: Twisted Pair Cable Lengths per Cable Segment
Cable Manufacturer,
Part Number,
Gauges/Conductors
Belden 9580,
14 AWG,
1 Pair Unshielded
Belden 9572 ,
16 AWG,
1 Pair Unshielded
Guardian E2572S,
18 AWG,
1 Pair Unshielded
Atlas 228-18-1TP-2,
18 AWG,
1 Pair Shielded
Signal 82802-06-04,
18 AWG,
1 Pair Unshielded
Signal 98181-06-04,
18 AWG,
1 Pair Unshielded
West Penn Wire D980,
18 AWG,
1 Pair Unshielded
Brand-Rex 93782-01,
16 AWG,
1 Pair Unshielded
Continued on next page . . .
20 IFC Networking—Metasys Intelligent Fire Network
You are not limited to using only one type of wire on the FN. You can
vary the type of wire used on separate circuit segments as long as the
two kinds of wire do not physically connect together.
Using a different port on the same MIB/MIB-OWS does not constitute a
physical connection. However, if you have two different types of wires
connecting to a node, the difference in wire characteristics may affect the
operation of the system when the node is powered down.
Note: Make sure when connecting network nodes between buildings that
the twisted pair wire is in an underground conduit, separate from
all power wiring.
Manufacturer's
Specifications
FPLR,
NEC Article 760,
UL 1424
FPLR,
NEC Article 760,
UL 1424
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
Low Capacitance,
FPL, PVC,
NEC Article 760,
UL 1424
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
Mid-Capacitance,
FPL, PVC, NEC
Article 760, UL 1424
FPL, PVC,
NEC Article 760,
UL 1424
Contact Manufacturer
Permissible Distance in Feet for Each
Cable Segment (Related to High/Low
Threshold Setting)
Point-to-Point
Configuration
2 Nodes/Repeaters
High Low
1-1,400 1,300-
3,000
1-1,300 1,200-
1,300
1-1,200 1,000-
3,000
1-1,200 1,000-
3,000
1-1,200 1,000-
2,800
1-1,200 1,000-
2,800
1-1,200 1,000-
3,000
1-1,400 1,200-
2,000
Bus
Configuration
3 to 7
Nodes/Repeaters
High Low
1-100 N/A
1-100 N/A
1-100 N/A
1-100 N/A
1-100 N/A
1-100 N/A
1-100 N/A
1-100 N/A