System/Network Engineer
Hedra Technology Consultants
Total des années d'expérience :9 years, 0 Mois
Installation and configurations of Juniper EX4300, EX2200, EX2300, EX3400 switches.
Installation and configurations of Juniper MX104 and MX960 routers.
Installation and configurations of Juniper SRX1500 and SRX345 firewalls.
Installation and configurations of Cisco, Ruckus and HPE Aruba wireless LAN controllers 7030 and AP-325.
Deployment of Pulse Secure and Aruba Network Access Control (NAC).
Deployment of Junos Space and Whatsup Gold Network Monitoring System (NMS).
Designing solutions according to customers requirements.
Designing technical product presentations for training of clients.
Providing technical support including switching, cabling, routing, firewall security and site to-site VPN.
Coordinating with hardware and software vendors to maintain operations, diagnose issues and resolve problems.
Developing training materials and procedures.
Performing responsibilities of creating implementation plans for network-related projects based on standard building blocks and procedures.
Drafting network efficiency monthly reports to determine and recommend if any changes were necessary.
Designing of 28A 0-100V Switch Mode Power Supply (SMPS).
Rectified 220V AC into 310V DC by using high power bridge rectifier.
Filtered pulsated DC by capacitor.
Designed buck converter by using high power IGBT.
Designed LC filter to filter the output of buck converter.
Designed feedback of supply by using pulse width modulation control IC.
Designed single phase AC-AC Cyclo Converter.
Converted 50Hz frequency of WAPDA line into 25 Hz frequency.
Designed positive and negative controlled bridge rectifiers using thyristers.
Designed zero crossing circuit using AVR microcontroller to control the bridges
Worked on OFS transmission system i.e. SDH (Huawei and ZTE).
Worked on DWDM system (Huawei and ZTE) and allied NMS.
Worked on ZXA10 (OFAN-OUUs/OLT).
Worked on ZXMSAG (Multi services access gateways).
Worked on S200 SDH system.
Final Year Project: DC Motor Speed Control through Bluetooth using PID Control In this project, a user can set his own desired speed according to his requirement. I have controlled speed of 180 v, 2A DC motor automatically by servo mechanism. I have implemented a special designed three channel optical encoder which counts pulses for 1 second and calculates the current speed. I have implemented digital PID control in arduino which automatically calculates error and sets the current speed to the desired speed. In This whole scenario was controlled wirelessly via Bluetooth. This project is very efficient and cost effective. This was also sponsored by National Development Complex (NDC).
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