Ericsson Cabinets VF Sites

Ahmed Ibrahim

2

Our Target Course• To deal with different types of 2G “2206, different types of

6000 Cabinets”.

• To deal with all Transmission problems.

• To deal with different types of 3G “ 3418, DUW 20,30,41”

• To deal with TCUs

• To deal with PBC 6500, PBC6200

Ahmed Ibrahim

3

Our Target in that session

• To know main components of PBC6500.

• To know main problems may down our site, related to PBC6500.

PBC 6500 Overview

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1- All our cabinets inside shelter works by DC .2- We get voltage by – ve values as when any S.C happened our cabinet will not be burnt.3- PBC 6500 get 3 phases A/C from MDP and it give us 24v or 48v DC or mix between 24,48v4- its important to get our 3 phases from our 3 bars in MDP …. Why?5- We connect our cabinets on DOUs “ 24v or 48v “ to get its necessary power.6- our cabinets which named 2206 will get 24v, transmission cabinets will power by 48v

Notes

2206 cabinetTrans-cabinet

DC-Box 1- We get power cable which carry 48V DC from our PBC to that DC-Box which consider a protection for all transmission.

Basic troubleshooting till now.1- Cabinet down power.We have to check its power source in PBC 6500, may DOU needs to be changed… if you haven’t DOU, just change its power source to un-used DOU “24”

2- All site down but power exist.- Check if previous site is work normally or not.- after reach site, check your link if power reach it or not.- IF not check its power cable if power reach it or not, if not.- check DC-Box if your C.Bs up or not, if yes. Check power in it if you reads about 54v DC or not . If not- Check if your PBC6500 get it’s AC power or not. If yes.- Check your PSUs, if OK.- Check your DOU. if not, change it.

- - Check if your PBC6500 get it’s AC power or not. If not.Check your power in MDP “ if exist check your conductor and C.Bs which feed your PBC6500”.

Review by alarms

Next slide will be about 2206 cabinets and its basic alarms