Installation and Commissioning of VHF based Approaching Train Warning System (RAKSHAK) over SER including maintenance for two years.(As per RDSO specification).

Item Breakup - A-NS special Item

Supplying, installation and commissioning of Each digital signal modulator-Portable UP, DN and UD transmitter-"DSM 255-UDM-1" for transmitting the train approaching UP, DN & UD signals to the corresponding digital signal receiver-(RAKSHAK) including maintenance for two years. Specifications: working on VHF frequency 160.45 MHz with antenna & cable, built-in battery 12 V/ 7AH , battery charger working on 220V AC, incorporated with 12V DC battery with charger. Charger should have a 13.8 V/2AMP CVCC mode for charging battery. Portable UP/DN transmitter should have following facility: Mode switch to start & stop transmitter. Mains socket to connect 230 V AC through main cord, for charging battery, manual trigger switch, UP & DN for transmitting signals manually. External terminal block screw connector (4 way) for connecting:- "UP" trigger contact from relay room, "DN" trigger contact from relay room, dimension of 'portable UP/DN Transmitter":- shall be less than 200x275x200mm (WxDXH). net weight "portable UP/DN transmitter" shall be less than 9 kg. Product should confirm to latest RDSO specifications.

Supply of fine sand (zone IV) Total 83662230.38