Honeywell International Inc. RTU-L12 用户手册
1
1
.
.
3
3
L
L
O
O
N
N
W
W
O
O
R
R
K
K
S
S
D
D
a
a
t
t
a
a
C
C
a
a
b
b
l
l
e
e
s
s
• The
L
ON
W
ORKS
1
• In a free topology configuration, the overall length of the sections must not
exceed 500m
• In a bus configuration, the overall length of the sections must not exceed
2700m
• In the free topology configuration, the 50ohm terminator must be enabled
by inserting the appropriate jumper into the FTT10A plug-in on the CTU-
PLG06 board inside the TemaServer
PLG06 board inside the TemaServer
• In a bus configuration, two terminators must be inserted at the two ends of
the bus (resistance of 100ohm 1% ½W)
• The L
ON
W
ORKS
1
Cable Type
Extension [m] based on cable capacitance
AWG mm
2
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
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/Capacitance of L
ON
W
ORKS
Cables
• The FTT10A Echelon
v1.2 User’s Guide suggests using the cables as
indicated in Table 2.
Make and Model
AW
G
G
Bus
Connection
Max Length
total [m]
Connection
Max Length
total [m]
Free Topology
Connection Node-
to-Node Max
Length [m]
Connection Node-
to-Node Max
Length [m]
Free Topology -
Connection
Max Length total
[m]
Connection
Max Length total
[m]
Belden 85102
16
2700
500
500
Belden 8471
16
2700
400
500
Level IV (twisted pair,
solid, unshielded)
solid, unshielded)
22 1400
400
500
JY (St) 2x2x0,8 (4
solid wires, spiral-
twisted, shielded)
solid wires, spiral-
twisted, shielded)
20 900
320
500
TIA Cat5
/
900
250
450
Table 2: Suggested L
ON
W
ORKS
Cables
1
L
ON
W
ORKS
®
is a trademark of the Echelon Corporation
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