Bbu Monitoring Port; Figure 2-2 Customized Alarms Collected By The Emua (1); Figure 2-3 Customized Alarms Collected By The Emua (2) - Huawei BBU3900 Hardware Description

2 DBS3900 Monitoring System
Customized alarms are transmitted to the EMUA that connects to the PMU. Then, the PMU
reports the alarms to the CMUA, which transfers the alarms to the BBU through the MON port.
For details about cable connections, see

Figure 2-2 Customized alarms collected by the EMUA (1)

If the CPRI port on the RRU is not used to report alarms to the BBU, the serial port on the RRU
is used to report alarms to the CMUA that connects to the PMU. Then, the PMU transfers the
alarms to the EMUA. For details about cable connections, see

Figure 2-3 Customized alarms collected by the EMUA (2)

COM_IN
PMU
For details about the position of the input port on the EMUA and cable connection between the
EMUA and the sensor, see EMUA User Guide.

2.2 BBU Monitoring Port

The BBU houses the UPEU and UEIU for monitoring. Each board has two Boolean input ports
and two RS485 input ports, and each Boolean input port receives four Boolean inputs.
2-4
2-4
SENSOR
COM_IN
COM_OUT
COM_OUT
RS485
SENSOR
shows the slot assignment for the UPEU and UEIU.
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Figure 2-2.
RRU
ALM
CMUA
EMUA
BBU3900
Hardware Description
Figure 2-3.
Issue 11 (2010-11-10)
Figure