User's Manual

- 18 -
User’s manual_v01
2.1.1 PSU
PSU can be operated in either ac-dc or dc-dc.
 ac-dc converting part operating from 100-220 of free ac voltage input to dc output.
 dc-dc converting part operating from external dc + 24V voltage input to dc output.
The maximum available power consumption is around 170W.
2.1.2 RRFU
RRFU consists of RF blocks that perform appropriate amplification, attenuation and frequency conversion for
each of the downlink and uplink frequency bands.
2.1.3 MUX
MUX is a front-end filter component that can isolate the various RF signals from one antenna input and operate
with stable isolation for each frequency band.
2.1.4 PA
A power amplifier is an electronic amplifier designed to increase the magnitude of power of a given input signal.
2.1.5 Carrier board
Carrier board is usually necessary when additional features or hardware interfaces are required, modem
interface for instance.
2.1.6 DTU
DTU is a core part that performs functions such as digital filtering, gain control, and interference signal
cancellation.