Bts3900C Monitoring System - Huawei BTS3900C Hardware Description

BTS3900C (Ver.C)
Hardware Description
About This Chapter
The BTS3900C monitoring system monitors all boards and components in a BTS3900C cabinet.
If any board or component is faulty, an alarm is automatically reported. The RRU or UPEU and
UEIU in the BBU collect monitoring signals from boards and components to monitor the
surrounding environment of the BTS3900C.
5.1 Principles for Monitoring a BTS3900C Cabinet
A BTS3900 cabinet is monitored by various boards. The boards collect alarms from sensors and
fans, and then transmit the alarm signals to the MON port on the BBU through the RS485 serial
bus. In this manner, the boards monitor the cabinet.
5.2 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.
5.3 Monitoring Boards
This section describes monitoring boards in a BTS3900C cabinet.
Issue 03 (2013-05-27)
5

BTS3900C Monitoring System

Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
5 BTS3900C Monitoring System
108