EMUB Details in Telecom

EMUB of Huawei Telecom Technology

EMUB stands for Environment Monitoring Unit Type B. EMUB is the Alarm switching unit. It controls, switch, monitor and send signal to BBU (Base Band Unit) to control room or Knock Operator of the telecom operator via Microwave link.

Huawei have its various sensors connected to different location of the BTS or Site(location of tower).

Pic: EMUA of Huawei 

Different sensors like Flood, Smoke, Temperature, Door, Fuse Fault, DC under voltage, Load on DG and many more are connected to various locations of the BTS cabinet or Site. Like, Flood sensors is connected to few inches below of the BTS room , Door sensor is connected to door of the cabinet and Smoke sensors is installed at upper side of the BTS cabinet or shelter. These sensors give value as measured or configured to the EMUB and EMUB process the sensors given value and sends as according with priority to the control room via BBU and Microwave link. EMUB can handle multiple sensors input and processes it. EMUB is commissioned such that each port is prepared for the desired sensors input only.

EMUB have 32 input ports for taking input of various sensors. It sends those sensors value via DB9 male RS485 cable to BBU end connected in RJ45 female connector.

Pic: DB9 Male connector

Shortly, RS485 is standard communication protocol designed for communication between two device ensuring smooth data transmission mitigating adverse path loss and ensuring safe communication.

It is the serial communication. EMUB sends all those port signals via serial communication to BBU. BBU manipulates it and sends to control room of telecom. For unusual alarm, necessary steps is taken by the operator. 

Pic: Sensors Labelled at EMUB port

The sensors output are connected to EMUB via Lan Cable(RJ-45) through with in 32 switch signal check port. For future understanding, predefined sensors output is labelled at EMUB indicating sensors.

Among 32 switch signal check port, I have listed 8 port list with their commissioned configuration for selected sensors.

EMUB Switch Port (For ICC 500 Power Plant)	Alarm Details
S1+, S1-	Temperature control unit fault
S2+, S2-	Door
S3+, S3-	PSU Fault
S4+, S4-	Fuse Fault
S5+, S5-	Temperature
S6+, S6-	DC under voltage
S7+, S7-	Mains Power Failure
S8+, S8-	SPD Fault

EMUB of Huawei in Telecom controls and monitor Environment factors and send results to control room ensuring safety and necessary precautions is undertaken without any major loss.

If you find this post useful, please like and share or if something is missing or if you want more concept, ideas and details of other telecom equipment's please leave comment in the comment section below. I will try to include those topics in my coming post.