Electronics & Telecommunication Department

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Electronics & Telecommunication (E&T) Department

NCL is among the best subsidiaries of Coal India Ltd having well established communication network for providing effective Data & Voice communication between NCL HQ to different Projects/Units. Telecommunication network is a backbone for implementation of various IT initiatives/ activities.



GPS based Vehicle Tracking System:

GPS based Vehicle Tracking System is being used for tracking of the movement of the coal transport vehicles at NCL. Online web-enabled real-time tracking of vehicles is facilitating the officials to view the project-wise movement of vehicles on a single screen. The GPS based Vehicle Tracking System generates alerts against the violations by the trucks. Alerts are triggered for various violations such as geo-fence, route deviation, undue stoppage & speed. This is being monitored in the control room at each Areas/Project.

RFID based Automated Boom Barrier System at entry/exit gate of all mine premises at NCL:


RFID based Automated Boom Barrier System at entry & exit gate of mine premises is working in Bina Project of NCL. The trial run has started at Jayant Project. The installation & commissioning for rest of the 09 Projects is going on. The RFID based Automated Boom Barrier system electronically records all the data like vehicle number, DO number, entry/exit, date & time etc., of the vehicles entering & exiting the Mine Premises. Online web-enabled interface for RFID based Automated Boom Barrier system helps officials to view project-wise vehicle details like vehicle number, DO number, entry/exit, date & time etc. on a single screen. The said solution is working in Bina Project of NCL.


New Server based IP EPABX Telephone Exchanges have been installed at NCL HQ, Nigahi Project and Krishnashila Project. Subscriber capacity of the Exchanges installed at NCL HQ, Nigahi Project and Krishnashila Project is around 1400, 1500 and 400 respectively. These are Server based high end Exchanges of advance technology that are capable of hosting number of services. Following facilities/services are available with these Server based IP EPABX Telephone Exchanges:

 1)      20 party Video Conference.

2)      Complaint Management System

3)      Emergency Response System

4)      Mobile Client (for extending desk phone to Mobile)

5)      Operator Console

6)      IP Phones

7)      Foreign Exchange Subscriber (FXS) for providing voice connectivity at remote locations through LAN.

Remaining 10 Projects/Units are having IP Telephone Exchanges fulfilling the voice communication requirement of the Projects/Units. These are functioning on Wide Area Network (WAN) for seamless flow of the voice.

Walkie-Talkie (VHF):

In order to strengthen the Wireless Connectivity and to enhance the communication in the mine area of the Projects, additional 600 Nos. Digital Handheld Transceiver Set, 50 Nos. Digital Transceiver Mobile Radio and 14 Nos. Digital Transceiver Repeater have been procured. This will enable us to built a robust communication channel in the mines which in turn will help in improving the Production.

Wide Area Network (WAN):

10 Gbps High Speed WAN connectivity has been established between NCLHQ and Projects/Areas/Units/weighbridges through Optical fiber cable as well as Radio Backup network. The e-office/SAP (ERP)/ Internet/ Video Conferencing and VoIP/ CCTV are working through Wide Area Network (as a media). The complete network is being monitored from NCL HQ through Network Management System.

MPLS-VPN for Establishment of ERP at NCL:

The secure MPLS-VPN connectivity has been established for implementation of ERP in NCL. The network consists of total 146 links (Nodes) including DC-Delhi and DR-Mumbai to access the ERP servers of Coal India Limited (CIL).

IP Based Radio Network:

Apart from fiber based WAN connectivity with all the Projects/Units, E&T Department has established a strong Wireless WAN connectivity with the Projects/Units through Radio Network as an alternate media for voice and data communication with minimum bandwidth of 100 Mbps uplink and downlink per site. In case the optical fiber cable gets damaged or disconnected the Radio system automatically takes over the load. This Radio Network along with Fiber Network helps in achieving the 100% WAN connectivity in NCL.


In order to provide internet connectivity through NCL-HQ, Internet leased line have been taken from three different internet service providers, such as 155 Mbps by M/s. Railtel Corporation of India Limited, 210 Mbps by M/s. BSNL and 155 Mbps is being provided by M/s Power Grid which helps in the implementation of various IT initiatives in NCL.


UTM devices are installed in NCL HQ providing complete Network Security with one stand-by device. It provides uninterrupted security 24*7 and filtering of websites and their contents through UTM.


Postpaid SIM has been provided to the employee of Northern Coalfields Ltd for Mobile communication i.e. for Voice & Data services.


E&T department has developed an online portal ( in LAN/WAN which constitutes a complaint lodging system for lodging various complaints related to NCL Telephones, LAN/WAN and photocopier/Fax. Online mobile directory is also available for searching contact numbers by name, designation, department and project.


Apart from above, NCL has established IP based Video Conferencing System, 1 no. of MCU at HQ and VC end points installed at different project/units (HQ/JRD/ KKR/ KSL/ BINA/ KHD/ DCH/ JNT/ CWS/ NSC/ NGH/ AML/ Block-B) of NCL.

IP based Video Conferencing System has been established between NCL HQ to CIL & Other subsidiaries of CIL.


CCTV Surveillance System:

CCTV surveillance system has been installed in vital locations of mines such as mine entry, exit, mine, viewpoint, stores, weigh bridges, CHP, workshops, diesel filling stations, barriers and etc., at different Projects/Units of NCL. This system helps in prevent the theft of materials and to monitor all the activities of the Projects. Presently, 733 approx. CCTV surveillance Cameras are working at above defined locations.