Rugged voice and data networks for plants, mines and utilities — connecting PLCs, RTUs, meters and moving machines to the control room over industrial wireless, fibre and Ethernet.
An industrial communication system is the network that lets field equipment — PLCs, RTUs, protection relays, energy meters, drives and sensors — exchange data with SCADA and control-room systems, and lets people across a large site talk to each other.
Unlike an office network, it has to keep working in heat, dust, vibration and electrical noise, over long distances and around moving machinery, every hour of the day. That is the work we have specialised in since 1994.
SARVANI TELECOM under brand name STEL, specialise in professional radio / industrial communication systems for voice and data applications.
Licence-free 2.4 GHz and 5.8 GHz point-to-point and point-to-multipoint links — and our speciality, non line of sight (NLOS) links — wherever cable cannot go: moving stackers and reclaimers, remotely located Modbus IEDs, scattered solar blocks and wind turbines.
Single-mode and multimode fibre, OPGW and ADSS cable for long runs, links between buildings and paths through high-voltage areas — immune to electrical interference and free of ground loops.
DIN-rail switches, serial device servers and protocol gateways inside the control panel — bringing RS485 Modbus meters, relays and RTUs onto one IP network.
Remote control of stackers and reclaimers over NLOS wireless, wireless data from moving platforms, and plant-wide voice — EPABX, VHF radio and public address — on one platform.
Maha Cements · ACC Cements Wadi · ~10 cement plants in AP and Karnataka
Remote changing of railway points from 11 km away, controlling goods-train traffic between two cement plants — a first of its kind in railways.
Penna Cements, Anantapur
Industrial Wi-Fi networks for handheld RF ID readers and mobile data-acquisition devices across large storage areas.
Gujarat Petroleum Corporation warehouse, Kakinada
Plant SCADA over wireless Modbus, links between solar blocks and wind turbines, and data to the load despatch centre in IEC-101 / 104.
See our Solar & Wind SCADA schemes →
Lift-irrigation substation load data integrated to the load despatch centre in IEC-101, over PLCC, with a main & standby RTU panel.
Pattiseema lift irrigation 220/11 KV SS → ALDC Nunna
Our gateways and RTUs translate between the protocols field devices speak and the ones control centres expect.
Fanless, DIN-rail and IP67 outdoor equipment with wide operating temperature ranges and redundant DC power inputs.
Main & standby links and ring topologies, so a single cable cut or radio fade does not stop the data.
Galvanically isolated RS485, fibre between buildings to break ground loops, and surge protection on field lines.
Plant networks kept separate from office IT, with VPN-secured links for remote monitoring and support.
A blend of wire & wireless communication, interfacing EPABX telephone lines with 2-way VHF radio system working in the tunnels of world famous NAGARJUNASAGAR DAM, for the communication purpose of inspection engineers of AP Irrigation Dept.
Automatic facsimile transmission (slow speed FAX) system over HF radios for ONGC, between KG Basin Rajamundry AP & KG Basin, near Jabalpur, which exhibited our technical competency.
A wonderful exhibition of our technical competency, in form of a communication network in Srisailam underground hydel generation project, one of the world's engineering marvels, interconnecting PLCC (Power Line Carrier Communication) system, EPABX system and KENWOOD VHF radio network providing voice communication for the working engineers.
Comprehensive industrial communication project for ACC Cements Wadi, KARNATAKA (through TATA Projects Hyderabad), bringing various voice communication modes like EPABX telephones, VHF radios and industrial public addressing system on to a common platform, which made cross mode communication — a dream of any cement industry — into a reality.
Non Line of Sight (NLOS) communication system for automatic remote control (PLCs controlling) applications of material handling machinery like stacker & reclaimer in MAHA CEMENTS Kodad, AP.
A unique and first of its kind in railways, project done for PENNA CEMENTS, Anantapur Dist. AP. Remote changing of railway points from a distance of 11 Km. for controlling goods train traffic between PENNA CEMENT and ULTRATECH CEMENTS.
Gujarat Petroleum Corporation warehouse, Kakinada AP — digital communication system for RF ID tag reading for their day to day warehouse operations through handheld RF ID readers.
Nearly 10 cement plants in AP and KARNATAKA so far, provided with industrial automation communication solutions over wireless for moving platform application.
Site survey and line-of-sight survey for PTP and PTMP links.
Strategic planning and network architecture design.
Radios, fibre, switches and gateways from our partners and stock.
Installation, configuration and end-to-end testing on site.
Configuration reviews and annual maintenance contracts.
Tell us the site, the distances and the equipment to connect — we will survey and design the right mix of wireless, fibre and Ethernet.