Huawei BBU3900, Описание аппаратуры

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2.1 Customized Alarm Input
If a BBU monitors customer devices, customized alarms about the devices must be reported to
the BBU in the following two modes:
l The alarms are collected by the UPEU or UEIU in the BBU.
l The alarms are collected by the EMUA. For details about software configurations, see the
related initial configuration guide.
Monitoring Board Configuration
If a BBU monitors customer devices, customized alarms about the devices must be reported to
the BBU. The configurations of monitoring boards in the BTS3900A depend on the number of
customized alarms, as listed in
Table 2-1 .
Table 2-1 Configurations of monitoring boards in the DBS3900
External Power
Input Application
Scenario Number of
Boolean Signals to
be Monitored Monitoring Board
Configuration
-48 V DC/220 V AC Indoor DBS3900 None UPEU
1 to 16 UPEU+UEIU
17 to 32 UPEU+UEIU
+EMUA
Outdoor DBS3900 None UPEU
1 to 16 UPEU+UEIU
+(SLPU)
17 to 32 UPEU+UEIU
+EMUA
NOTE
l If backup power is required for the BBU, two UPEUs rather than UPEU+UEIU are configured.
l The analog values can be monitored only by the EMUA.
l Two USLP2s and one SLPU are delivered in a package.
l The EMUA with sensors is configured according to site requirements for the indoor DBS3900.
Customized Alarms Collected by the UPEU or UEIU
Each UPEU or UEIU in the BBU supports eight Boolean alarm inputs. A maximum of two
UPEUs or UPEU+UEIU can be configured for the BBU, which means there are 16 Boolean
alarm inputs. This method can be used for the configuration of less than 16 customized alarm
inputs.
If using this method, connect the device to be monitored to the SLPU for surge protection, and
then connect the device to the EXT_ALM port on the BBU, as shown in
Figure 2-1 .
2 DBS3900 Monitoring System
BBU3900
Hardware Description
2-2 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 11 (2010-11-10)