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7
Befo
re co
ntinuing
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Before continuing ...
Using this system manual
This system manual provides all the information necessary for planning, installing and operating a TwinBus door
intercom system. In order to find the information required quickly, the chapters have been organized according to the
following groups of customers:
In the Installation chapter, basic information is provided by means of general examples. Detailed technical
specifications on the individual devices supplements the information.
Please keep this system manual on hand for later use.
Explanation of the symbols used
Indication of risks:
Important information:
Circuit diagram symbols
Chapter
Customer group
1. General Information
All customer groups
2. Installation: assembly, connection and start-up
Electricians and installation technicians
3. Operation
Users
4. Service
After-sales service personnel
Danger!
Type and source of the danger
This danger symbol indicates the risk of personal injury.
Caution!
Type and source of the danger
This symbol indicates the risk of equipment, environment or other property damage.
Note:
This symbol does not represent a safety note. It identifies information to better understand the
respective processes.
This symbol indicates an acoustic signal issued by a device should be observed. The length of the signal
indicates the acknowledgement of settings.
This circuit diagram symbol indicates a twisted pair of wires.
This circuit diagram symbol indicates that the line screening sheaths must be connected across the joints.
Summary of Contents for TWINBUS
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Page 41: ...Installation Assembly connection and start up 41 Installation 00042 0 ...
Page 156: ...Installation Installation Assembly connection and start up 156 ...
Page 193: ...Notes 193 ...
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