Ericsson RBS 2106 Hardware Reference Manual page 396

Glossary
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Heat Management System
Humidity
HardWare
HardWare Unit
An HWU consists of one or more SEs. An HWU is
a functional unit within the RBS. The HWU is either
active (equipped with a processor) or passive (without
processor).
Internal Fault Map Class 1A
Internal Fault Map Class 1B
Internal Fault Map Class 2A
Immediate Assignment
Integrated Circuit
Initial Codec Mode Indicator
IDentification
Installation DataBase
Internal Distribution Module
International Electric Commission
Interface Box
International Mobile Subscriber Identity
Initial
Internal
Input/Output Group
Internal Operation and Maintenance bus
InfraRed
Interface Switch
InterWork Description
RBS 2000
EN/LZT 720 0283 Uen R1A