ZIEHL-ABEGG AM-LON, Operating Instructions Manual, Page: 7 / 9

5.3.2 Wiring and terminating resistor in the LON
®
network
With bus wiring, a terminating resistor of 100 Ω / ≤ 0.25 W must be fi tted to the beinning
and end of the line.
Information
The stub lines to the individual devices should be kept as short as possible (max. 5 m).
If this is not possible, the terminating resistor must be connected after the free wiring.
Example 1: bus wiring
02.02.2012
v_busverdr_lon.VSD
100 ohm 100 ohm
100 ohm = terminating resistor
If this type of wiring is not possible for routing reasons, then "free" wiring can be used as
an alternative. Please note the restrictions on line length.
Information
If any matters are unclear, you can send for our technical information sheet "Network
structure of a LON
®
" - TIL00_70. It contains information about the topology, circuitry and
selection of types of cable.
With free wiring, i. e. no wiring rule is applied, a terminating resistor of 50 Ω / <0.25 W
must be fi tted at a neutral point in the network or at one end of the line.
Example 2: Free wiring
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v_freie_verdraht_lon.VSD
100 ohm
100 ohm = terminating resistor
Operating Instructions AM-LON Electrical installation
L-BAL-E166-GB 1610 Index 002 Part.-No. 00163375-GB
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