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Honeywell CENTRA LINE LION CLLIONLC01 Installation & Commissioning Instructions page 14

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Planning
L
W
Bus Cables
ON
ORKS
Cable type
Belden 85102 (plenum)
Belden 8471 (non-plenum)
Level IV, 22 AWG
JY (St) Y 2 x 2 x 0.8
TIA568A Cat. 5 24AWG, twisted pair
Table 18 Doubly-terminated bus specifications
Notes
• The cable types listed above are as recommended by
Echelon in their FTT-10A User Guide.
• The cable recommended by CentraLine is the level IV,
22 AWG, solid core, non-shielded cable.
• Belden part numbers are 9H2201504 (plenum) and
9D220150 (non-plenum).
FTT Specification
The FTT specification includes two components that must
be met for proper system operation:
• The distance from each transceiver to all other
transceivers and to the termination must not exceed the
max. node-to-node distance.
• If multiple paths exist, the maximum total wire length is
the total amount of wire used.
Max. node-to-
Cable type
node distance
Belden 85102
500 m (1650 ft)
Belden 8471
400 m (1300 ft)
Level IV, 22AWG
400 m (1300 ft)
JY (St) Y 2 x 2 x 0.8
320 m (1050 ft)
TIA568A Cat. 5
250 m (825 ft)
24AWG, twisted pair
Table 19 Free topology (singly-terminated) specifications
NOTICE
Unpredictable reflections on the bus due to step change
in line impedance characteristics!
Do not use different wire types or gauges on the same
L
W
network segment.
ON
ORKS
EN1Z-0921GE51 R0709
Note
In the event that the limit on the total wire length is
exceeded, the FTT physical layer repeaters (FTT 10A) can
be added to interconnect segments. This increases the
Max. bus length
overall length by an amount equal to the original
2700 m (8900 ft)
specification for that cable type and bus type for each
repeater used.
2700 m (8900 ft)
For example, adding repeaters for a doubly-terminated bus
1400 m (4600 ft)
using JY (St) Y 2 x 2 x 0.8 cable increases the maximum
length 900 m (3000 ft) for each repeater.
900 m (3000 ft)
900 m (3000 ft)
Field Device Cables
Table 20 Cable sizing for connection of field devices
For wiring field devices see page 30.
Max. total wire
length
500 m (1650 ft)
500 m (1650 ft)
500 m (1650 ft)
500 m (1650 ft)
450 m (1500 ft)
14
≤ 100 m (300 ft)
Type of signal
(Fig. 40 on p. 30)
one transformer
1.5 mm
24 VAC power
(16 AWG)
0...10 V signals
0.081 – 2.08 mm
LION System
Cross-sectional area
≤ 400 m (1300 ft)
(Fig. 41 on p. 30)
separate
transformers
2
not allowed for
> 100 m (300 ft)
2
(28 – 14 AWG)

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