User Manual

ADCP-75-192 • Issue 1 • December 2005 • Section 2: Description
Page 2-10
 2005, ADC Telecommunications, Inc.
4.1 RAN cabinet
The CXD RAN standard and extended cabinets, shown in Figure 2-9 and Figure 2-10, are
NEMA-3R enclosures (with removable dust filter) that provides the following basic functions:
• Houses the various electronic modules including the following
− RAN Chassis and Backplane
− Central Processing Unit (CPU)
− System Interface (STF2)
− Sonet Interface (SIF)
− RAN Down Converter (RDC or RDC2)
− RAN Up Converter (RUC2.X or RUC3)
− AC Power Entry Card (APEC)
− DC Power Entry Card (DPEC)
− RF Assembly (RFA) consisting of Power Amplifiers, duplexers, and RF interface
controller.
− Enclosure and chassis fans
• Houses accessory items such as back-up battery and WDM modules
• Protects all modules from the weather.
• Provides electrical interface connections for the RAN Chassis and RFA modules.
• Provides ventilation openings to allow the entry of cool air and the escape of heated air.
Figure 2-9. CXD RAN Standard Cabinet