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Ericsson CME 20 R6.1 - Page 50

Ericsson CME 20 R6.1
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Product Specification for RBS 2301
Handling
The RBS is designed to endure the requirement for Handling. Handling
of RBS parts during installation and maintenance.
Temperature range:
-40
C - +70
C
For details see: Section "Environmental Capabilities RBS 2301"
In addition to this requirement the RBS 2301 will endure topple. Minor
damages of the cabinet i.e. a broken corner of a cooling fin at topple
will not disturb the function of the RBS.
4.7.6 Climate Protection
Climate Protection Principle
The climate protection maintains the internal temperature within
allowed range for the units in the RBS.
The climate protection of the RBS is handled by a combination of:
Natural convection with the help of cooling fins
Conductional heating
Heating Capacity
The system have the capacity to heat the RBS from:
33
C to starting conditions within 30 minutes
15
C to starting conditions within 15 minutes
If the environmental conditions are: no wind or accumulated ice or
snow on the RBS.
Ingression
The RBS fulfil the IP-55 requirements according to the standard IEC
529.
4.7.7 Power Supply
Supply Voltage
The RBS can be connected to mains supply voltage with Nominal:
200 - 250 VAC ±10 % 50 Hz ±10 %
100 - 127 VAC ±10 % 60 Hz ± 8 %
200/100 - 240/120 ±10 % 60 Hz ± 8 %
The RBS will support installation with:
Single-phase (two-wire; earthed end of phase).
Single-phase (three-wire; earthed mid point).
EN/LZT 123 2697 R5A
1998-08-13
49 (306)
© Ericsson Radio Systems AB
All Rights Reserved

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