User's Manual

MIRCU User Manual

Figure 6 MIRCU, PCU and Antenna System Connection Diagram

6.3 Mapping of MIRCU to Phase Shifter

Comba existing MIRCU can satisfy 1 to 8 RET phase shifter control, and will be upgraded to

support up to 20 phase shifter control in near future through firmware upgrade, expected to be

done by Q2 2021. All control and driver chip are integrated into a single MIRCU module. The

relative specifications are as shown in Table 2.

Parameter

Product

No. of Motor

Driving

Control Unit

Suitable RET Antenna Installation Manner

MIRCU-S24 2

1 to 8 freq band build-in RCU

RET Antenna. Upgradable to

20 freq band in future.

Plug and play

Table 2 MIRCU in relation to Antenna Suitability

Comba MIRCU product, as shown in Figure 7 and Figure 8, employ the usage of socket, so

as to realize the plug-and-play function whereby the MIRCU can be easily installed or

uninstalled. It greatly enhances the reliability of the product in term of connection and

utilization. Also, the maintenance is greatly simplified.

PCU-H002

Antenna

PCU

Antenna Antenna

BTS

AISG TMA

SBTSBT

SBT

(a) (b)

(c)