Huawei BBU3900 - BBU Monitoring Port; Figure 2-2 Customized Alarms Collected by the EMUA (1); Figure 2-3 Customized Alarms Collected by the EMUA (2)

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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.

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

SENSOR

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.

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

COM_IN

ALM

COM_IN

RS485

COM_OUT

PMU

RRU

CMUA

EMUA

SENSOR

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. Figure

2-4 shows the slot assignment for the UPEU and UEIU.

2 DBS3900 Monitoring System

BBU3900

Hardware Description

2-4 Huawei Proprietary and Confidential

Issue 11 (2010-11-10)

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