CA 4146 – Controls and Indicators
17
english
The label shown on the left is attached to back of the unit. The symbols on
this label have the following meaning:
This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit.
Safety symbols
2.
Controls and indicators
Front view
Rear view
Mains connector
Fuse holder
Power switch
Ventilation outlet (Do not cover to provide unrestricted circulation.)
NetRateBus sockets, BUS-Power out, 48 V, 6 A max.
EXTENSION PORTS to connect microphone units such as MCS-D 202, Revoluto MCS-D 3173/3171 etc.
DATA PORTS to connect the MCS-D 200 control unit, CA 4146 power supply unit, CA 4522/44/66 digital/analogue interface
Ventilation slots (Do not cover to provide unrestricted circulation.)
Functional earth (avoid connection to earth wire)
3.
Installation NetRateBus
• Devices, which are connected to the 6-pin connectors of the NetRateBus (DATA PORT
and EXTENSION PORT
), are supplied with data
and current. Each chain may only be powered by one power supply unit (MCS-D 200 control unit or power supply unit of the CA 41xx
series). This is the reason why the CA 4146 power supply unit provides active and passive connections. The description “active” or
“passive” only refers to the power supply. Independing on the applied connector, the data are allocated to all connectors.
• The two DATA PORT sockets
are
passive
connectors, i.e. the connected consumers (e.g. microphone units or adapters) are
not
powered by the internal power pack of the CA 4146.
• The two EXTENSION PORTS
are
active
connectors, i.e. the connected consumers (e.g. microphone units or adapters) are powered by
the internal power pack of the CA 4146.
• Within one chain only one active EXTENSION PORT of a power supply unit (MCS-D 200 control unit or power supply units of the CA 41xx
series) may be connected. The ring cabling is allowed when it starts and ends at the EXTENSION PORTs of the same CA 4146 power supply
unit. Refer also to chapter 7. “Examples”.
Power LED. LED illuminates green: device is turned on and ready for use
