Parssaman

The location of the project is alongside a Gas Pipeline of National Iranian Gas Company which is stretched from north east to north of Iran, alongside the coast of Caspian Sea i.e from Sarkhas to Neka and from Neka to Rasht. It’s a 1200km pipeline which passes 5 provinces on its way and transfers 40 million cubic meters of gas per day from Khangiran field and Shahid Hasheminejad Gas Refinery.

This pipeline is one of Iran’s oldest and most strategic pipelines, as it is the main supplier of gas to the above mentioned provinces and in its last point, it connects to IGAT-I pipeline in the Lakan area, near Rasht city.

Currently, data transmitted by analog communication systems from this pipeline can be monitored and managed in Tehran supervisory center, and the main goal of this project is to replace this existing analog communication system with Digital Microwave Radios (DMR) and also establish a number of new sites which will be equipped with the same DMR’s to enhance and improve monitoring and management capabilities along the pipeline.

Scope of work

The scope of this project includes procurement of all Telecommunications systems along the Sarakhs-Neka-Rasht pipeline, such as Electrical and Optical SDH Transmission System, PCM Network Access equipment, Synchronization equipment, SDH/PCM Network Management Systems & Conventional VHF radio system to make radio coverage along the pipeline and etc.

A supervisory system will be located in main monitoring/control centers which are located in Shahid Hasheminejad Refinery, Shahid Bagheri, Gorgan Yard, Lakan (Rasht) and Tehran. The major sub-systems of the project are as follows:

Point-to-Point MW radios to transmit bi-directional data in a synchronous digital hierarchy with STM-1 capacity.
VHF analog conventional radio system, enabling communication among mobiles along the pipeline and also between mobiles and main monitoring/control centers. SDH MUX equipment with capacity of STM-1 and electrical interface to operate on digital microwave Radio.
SDH equipment will have this functionality to operate as Terminal equipment, Add & drop multiplexer and Regenerator. PCM MUX equipment will be supplied for access layer of network.

Scope of Supply

Digital Microwave Radio: 5000S	NEC/Japan
SDH Multiplexer: V Node S	NEC/China
PCM Multiplexer: FMX2S	NSN/Germany
SYNC Equipment	Symmetricom/ USA
TNMS Network Management System: PC-MG	NEC/Japan
VHF conventional Base Station and Mobile Radios	Tait/ New Zealand

Main Features

Enhancement of Telecommunications Network of a long pipeline which has an existing network and is under load.
Integrating various telecom systems in order to meet voice and data requirements
Vast geographical area of the project, extending five provinces
Extreme geoclimatic factors due to special positioning of project sites, all located near the sea, thus experiencing high humidity and high temperatures.