Specifications

LONWORKS® LN-Series Network Communication and Interface Guide Technical Bulletin16
Note: If you exceed the limits for the number of transceivers or total wire
distance, you can add one Free Topology Transceiver (FTT) physical layer
repeater to connect two segments and double the overall system capability.
The second type of cable is 16 AWG, 1 twisted pair (1P), stranded conductor
(STR), tinned copper (TNC), PVC insulation, PVC jacket, unshielded, plenum
FT6, CSA 600V, and UL 300V.
In a Bus topology, the maximum wire length is 2,700 m (8,858 ft).
In a Free topology, the maximum wire length is 400 m (1,312 ft) node-to-node and
500 m (1,640 ft) total wire length.
The maximum stub length on a TP/FT-10 channel is 3 m (10 ft).
TP/XF-1250 Cable Specifications
The following type of cable is recommended for TP//FT-10 channel installations:
22 AWG, 1 twisted pair (1P), stranded conductor (STR), tinned copper (TNC),
PVC insulation, PVC jacket, unshielded, plenum FT6, CSA 600V, and UL 300V.
In a Bus topology, the maximum wire length is 130 m (427 ft).
The maximum stub length on a TP/XF-1250 channel is 0.3 m (1 ft).
Table 8: TP/FT-10 Cable Specifications (16 Gauge)
Attributes Specifications
Conductor Gauge (AWG) 16 AWG
Conductor Count 2 Conductors (Twisted Pair)
Conductor Type Stranded Conductor
Material Tinned Copper
Plenu Plenum Rated
NEC Rating UL Listed NEC Article 800 Communications Plenum (CMP)
Rated
CSA Flame Rated
Table 9: TP/XF-1250 Cable Specifications (22 Gauge)
Attributes Specifications
Conductor Gauge (AWG) 22 AWG
Conductor Count 2 Conductors (Twisted Pair)
Conductor Type Stranded Conductor
Material Tinned Copper
Plenu Plenum Rated
NEC Rating UL Listed NEC Article 800 Communications Plenum (CMP)
Rated
CSA Flame Rated
IMPORTANT: In accordance with TP/XF-1250 communication standards,
do not use more than 8 transceivers per 16 m (52.5 ft) of cable on a
TP/XF-1250 channel.