Installation; Technical Data - Bosch ATB 420 LSNi Installation Note

Display Module
1

Installation

1
2
3
4
2

Technical data

Electrics
Operating voltage
–
–
Current consumption
Bosch Sicherheitssysteme GmbH
When connecting more than one ATB 420 LSNi a 2‑pin
cable (SUA1/2 after SUA1/2) is needed additionally.
Potential equalization.
Ground connection is required and has to be
connected to the housing metal parts.
If shielded cables are used, the shield wire has to be
connected to the PE pin of the first ATB 420 LSNi (left
side of the housing). Do not connect shield wires to
local ground used in 2).
In installations where ATB 420 LSNi modules are
installed in the same housing (e.g. BAT100) as ATB100
modules and therefore share the same lamp test
button, it is required to swap the wires for the lamp
test function. Connect the signals SUA1 of ATB 420
LSNi to SUA2 of ATB100 and signals SUA2 of ATB 420
LSNi to SUA1 of ATB100 to avoid unintended behavior
of the lamp test function.
LSN part
AUX power
Installation | en
+15 V DC to +33 V DC
+8 V DC to +30 V DC
2014.09 | 2.0 | F.01U.302.377
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