Letter No.			Date			Subject
2023
2010/Sig/SGF/12/Data Logger/1			27.06.2023			Data Loggers – Upkeep, maintenance and usages.
2021
2010/Sig/SGF/12/Data Logger/1			18.02.2021			Linking of Data Logger with COA at major terminals for reporting train arrival/departure timings.
2020
2018/Sig/18/6/Data-Logger/1			31.01.2020			Safety Alarm generation by Data loggers
2019
2018/Sig/18/6-Data logger/1			12.04.2019			SMS generation on failure/error state of EI
2019/Sig/SGF/18/6/2/Data logger (COA)			01.07.2019			Link of Dataloggers with COA for reporting train arrival departure timings
2019/Sig/SGF/18/6/2/Data Logger (COA)			03.10.2019			Synchronization of timings of Data Logger (COA)
2019/Sig/26-A/ECoR/03			16/17.10.2019			Head on collisinn of Train No-18005 of (Howrah-Jagdalpur Samalleswarri Exp.) with 8-W OHE Tower Wagon on ECoR 190001 (Make ICF) at Km 160/9-10between Singapur Road A Cabin (SPRO)Keutguda (KTGA) station of Waltair Division of East Coast Railway at about 16.38 hours on 25.06.19.
2018/Sig/18/6/Data logger/1			09.12.2019			Safety Alarm generation by Data logger
2018
2010/Sig/SGF/12 (Data logger)			05.04.2018			Safety Point alarm/Point reversal alert system based on Data loggers.
2010/Sig/SGF/12 Data Logger/1			14.06.2018			Utilization of Data Logger for linking arrival/Departure of trials with COA.
2010.Sig/SGF/12/(Data Logger)			03.08.2018			Provision of Computer Based Large Format Display System in Control Office
2018/Sig/18/6-Datalogger/1			16.10.2018			Monitoring of Relay Door Closure through Data Logger.
2017
2010/Sig/SGF/12 (Data Logger)/1			29/30.05.2017			Data Logger Networking.
2010/Si/SGF/12 (Data Logger)/1			29/30.05.2017			Minutes of meeting Data Logger Networking
2010/Sig/SGF/2/Data Logger/1.			21.07.2017			Data Logger Networks.
2016
2012/Sig/SGF/12(Data logger)	29.03.2016				Networking of Data logger
2010
2010/Sig./SGF/12(Data Logger)		22.07.2010		Data Loggers for Signaling-Timely extraction of Report.
2009/Safety& Signal/26/2		26.11.2010		Generation of exception report regarding reversal of Points.
2010/SIG/SGF/12(Data Logger)		23.12.2010		Placement of Data Loggers.
2009
2006/SIG/SGF/12/Data logger	07.10.2009				Data loggers.
2008
2006/SIG/SGF/12/Data logger	31.10.2008				Data loggers.
2005
2005/SIG/SGF/12/Data-Logger	25.06.2005				The mater pertaining to provision of Data Loggers.