ADC Telecommunications Inc. F0694-011 Manuel D’Utilisation

6-4

CONFIDENTIAL

Downlink design goals on the order of –85 dBm are typical for protocols, such as 
GSM. Wireless service providers may choose a higher level to ensure that in-building 
signal dominates any macro signal that may be leaking into the building.

The following tables show the recommended maximum power per carrier out of the 
RAU 50 Ohm Type-N connector for different frequencies, protocols, and numbers of 
carriers. These maximum levels are dictated by RF signal quality and regulatory 
emissions issues. In general, as the number of RF carrier increases, the maximum 
power per carrier decreases. If these levels are exceeded, signal quality will be 
degraded and/or regulator requirements will be violated. The maximum input power 
to the Hub is determined by subtracting the system gain from the maximum output 
power of the RAU. System gain is software selectable from 0 dB to 15 dB in 1 dB 
steps.

 

Additionally, both the uplink and downlink gain of each RAU can be attenu-

ated 0 or 10 dB.

When connecting a Hub to a base station or repeater, attenuation on the downlink is 
typically required to avoid exceeding Fusion Wideband’s maximum output power 
recommendations.

NOTE: These specifications are for downlink power at the RAU output (excluding 
antenna).