Page 255 - IRSEM_Main Book

(d) Be suitable for working on non-electrified, AC electrified areas.

(e) Be capable of working in any type of signalling installations on Indian
Railways.

(f) Dataloggers shall be suitable for deployment in the outdoor locations such
as LC gates, goomties of Distributed Electronic interlocking, Automatic
Block signalling goomties and IB Signal Huts using Remote Terminal Unit
(RTU) which shall be connected to Datalogger system through suitable
communication media.

(g) Datalogger system shall provide data driven decisions to various agencies
involved with asset management/usage.

(h) Be re-configurable to any changes required by user, whenever
modifications are carried out in the yard.

(i) Validation of Datalogger for accurate correspondence of Inputs, Outputs,
Alerts & yard layout display both at the time of Initial Installation & after
every yard/signalling alterations shall be done.

(j) The following outputs shall be available from Datalogger system at Test
rooms and remote locations
(i) Online alarms
(ii) Online simulation
(iii) Reports of alarms, events in textual and graphical form.
(iv) Historic simulation display

(k) Datalogger shall provide real time inputs (with appropriate interfaces) on
train arrival/Departures for improving Train operations.

11.1.4 Technical Requirements
(a) For monitoring digital inputs, potential free contacts shall be used. Analog
signals shall be connected directly to Datalogger which in turn will convert
to digital data for further processing.

(b) The Datalogger shall have built in Real Time Clock for time stamping the
receipt of particular information.

(c) It shall be feasible to store the data in an external device.

(d) Synchronisation with Indian Regional Navigational Satellite System
(IRNSS) Clock or any Satellite Based approved clock is required for clock
synchronisation with the network.

(e) Existing telecom services shall be used to send alerts to required staff.

(f) Interoperability among various makes shall be ensured.

(g) RDSO’s Latest Specifications shall be followed.

Chapter 11: Dataloggers and Predictive Maintenance Systems Page 221 of 535