LONWORKS( Data Cables
Page 11
L
ON
W
ORKS
Data Cables
•
The L
ON
W
ORKS
1
data cable must be twisted pair
•
In a free topology configuration, the sum total of the sections must not
exceed 500m
•
In a bus configuration, the sum total of the sections must not exceed
2700m
•
In a free topology configuration, activate the 50ohm terminator by placing
the appropriate jumper on the FTT10A plug-in of the CTU-PLG06 board
inside the TemaServer
•
In a bus configuration, place two terminators (with resistance values of
100ohm 1% ½W) at each end of the bus
•
Check that the length of the L
ON
W
ORKS
data cable corresponds to the
norms indicated in Table 1.
Type of cable
Length [m] in relation to cable capacity
AWG mm2
Ohm/Km 50nF/Km
100nF/K
m
200nF/K
m
500nF/K
m
1uF/Km
12 3,3 5,7
2676
1892
1338
846 598
14 2 8,8
2153
1523
1077
681
482
16 1,3 14 1707
1207
854 540 382
18 0,9 21 1394
986 697 441 312
20 0,6 34 1096
775 548 346 245
22 0,35 52 886 626 443 280 198
24 0,2 85 693 490 346 219 155
Table 1: Length/capacity of L
ON
W
ORKS
data cables (m)
1
L
ON
W
ORKS
®
is a trademark of Echelon Corporation
