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DR4088CS / GND / OPTO
2.0 Product overview
2.1 General product information
The DR4088xx is a feedback module that can be connected to the central unit via the S88(N)®.
The DR4088-xx has 16 feedback inputs.
The DR4088xx is available as CS version (current sensor 2-wire track), as OPTO version (connection of reed contacts, 3-wire track signal to track ground) and as
GND version (3-wire track).
Important! DR4088GND 3-wire operation:
Due to the H-bridge (track output) in the DR50xx, feedback devices in the DR4088GND version must not be used against track ground, as
is usually the case with 3-wire tracks. This inevitably leads to the destruction of the DR50xx.
If a 3-wire driver still wants to drive with the DR50xx and report back against track ground, the DR4088OPTO
can be used.
2.2 Technical specifications
The connection terminals of the 16 feedback units are designed for a cross-section of 0.5mm², the two terminals for "C" are designed for a cross-section of
0.75mm².
Number of
inputs
DR4088CS
2 x 8
DR4088OPTO
2 x 8
DR4088GND
2 x 8
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® R-Bus, B-Bus are trademarks which are registered in the name of Modelleisenbahn GmbH. XpressNet and RS-Bus is a trademark registered in the name of Lenz
2021-08-11
Suitable
Minimum load for safe
for
reporting
2 conductors
2 mA
3 conductors
-
when using the
DR50xx
3 conductors
Max. load per
Max. load per con-
contact Load
tact Load capacity
per contact
per contact for
max. 100 ms
2 A
5 A
-
Peak load for 8 feedbacks at
"C" total.
6 A an
„C"
-
P 4