bihl+Wiedemann AS-i/Modbus Gateway, User Manual, Page: 17 / 60

AS-i/Modbus Gateway Connections, Displays and Operating Keys
Subject to reasonable modifications due to technical advances Copyright Bihl+Wiedemann, Printed in Germany
Bihl+Wiedemann GmbH · D-68199 Mannheim · Tel. +49-621-339960 · Fax +49-621-3392239 · Internet http://www.bihl-wiedemann.de
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This connection technique serves also for providing more than one AS-i master out of
one master power supply because each AS-i circuit is decoupled with its own in the
AS-i master integrated coils.
Operation with AS-i power supply
In the jumper position "ext pwr" the AS-i network needs an additional AS-i power sup-
ply.
AS-i Master N
-
+
Master
power
supply
max. N x 2.8 A
29.5 - 31.6 V DC
PELV according to
EN 60950
(Protective extra low
voltage)
Fuse
2.8 A T Fuse
2.8 A T Fuse
2.8 A T
...
AS-i Slave
-
+
AS-i Master 2
AS-i Slave
-
+
AS-i Master 1
AS-i Slave
-
+
AS-i Master
18 - 31.6 V
150 mA
PELV according to EN 60950
(Protective extra low voltage)
max. 10 A
PELV according to EN 60950
(Protective extra low voltage)
AS-i
powers
upply
-
+
AS-i Slave
-
+
-
+
master
powers
upply