Honeywell International Inc. RTU-K12 사용자 설명서
NET
Page 11
• 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/Km
200nF/Km
500nF/Km
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
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)
• The FTT10A Echelon
v1.2 User Guide recommends the cables indicated
in Table 2.
Producer and Model
AWG Connection to
bus -maximum
total length [m]
total length [m]
Connection in free
topology –maximum
node-node length
max. [m]
topology –maximum
node-node length
max. [m]
Connection in free
topology –maximum
total wire length. [m]
topology –maximum
total wire length. [m]
Belden 85102
16
2700
500
500
Belden 8471
16
2700
400
500
Level IV (twisted-pair,
typically solid and
unshielded)
typically solid and
unshielded)
22 1400
400
500
JY (St) 2x2x0.8 (4-wire
helical twist, solid
shielded)
helical twist, solid
shielded)
20 900
320
500
TIA Cat5
/
900
250
450
Table 2. Recommended LONWORKS
Cables