bihl+Wiedemann AS-i/Modbus Gateway, User Manual, Page: 13 / 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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4 Connections, Displays and Operating Keys
Devices in IP20:
On the front panel of the AS-i/Modbus gateways are:
• terminals to connect the power supply and the AS-i circuit
• a 9-pin SUB-D connector as Modbus interface
• 7 LEDs
• a two-digit seven-segment display
• 2 push-buttons to configure the gateway
Devices in IP65:
The devices in IP65 have the terminals for Modbus (cage clamp terminals) and the
push buttons under the top of the housing to prevent liquids from entering. The
AS-interface is connected with the electromechanical interface with penetration tech-
nique developed for AS-i at the bottom of the housing.
4.1 Power Supply Concepts and AS-i Connection Techniques
4.1.1 Devices in IP65
Every AS-i master and all the AS-i gateways in IP65 come with power supply A. An
AS-i power supply has to be used which also supplies the AS-i master with power and
can be connected to the AS-i cable like all the other AS-i components at any place.
The AS-i masters as well as all the AS-i gateways of the are available
with two different power supply concepts, "master power supply A" and
"master power supply N".