Bosch DCN Next Generation Installation And Operation Manual page 68

68 en | Planning
Example 1: regeneration is required after using 100 m extension cable and no active or
passive devices.
Example 2: regeneration is required after using 20 m additional extension cable plus 20 active
devices.
Example 3: regeneration is required after using 20 m additional extension cable plus 40
passive units.
Example 4: regeneration is required after a loop-through of 10 active devices, plus 5 passive
devices, plus 40 m additional extension cable.
NOTICE!
The standard 2 m long device cables connected to active or passive devices are included in
the limit and examples above.
Limit 4: Tap-off connections
The maximum number of tap-off connections in succession between the central control unit
and the last tap-off in a branch is four. If there are more than four tap-off connections in
succession, the system does not operate correctly.
Limit 5: Cable-lengths
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Refer to Section 4.1.6 Maximum power consumption.
DCN-NG_IOM_V4.1 | V1.3 | 2012.07
With regenerative tap-offs, the maximum cable length is 250 m from the central control
unit to the furthest device in any branch of the DCN. The maximum cable length of 250 m
includes the device cables and extension cables.
Open-ended cables can cause an incorrect operation of the system.
Installation and Operation manual
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