Page 517 - IRSEM_Main Book

(b) Tests to be performed during FAT: FAT testing is performed with the
computer simulation. Only the testing of interlocking on Application
Software with reduced time as per SIP and RCC is performed during this
stage. Interface with I/O card, intercommunication is not checked as E.I
hardware is not used in FAT. Hence, the following test are to be usually
done during FAT (Computer Simulation), besides any other tests as
required-

(i) Control Table (including Negative Testing).
(ii) Cross Table (Also known as Square sheet testing).

(c) Tests to be performed in SAT (for new installations): In SAT, similar
testing is being performed at site with E.I hardware and simulation panel in
first stage. The correspondence & Interface testing are also performed
after interface with field gears.

Any other test may also be conducted as required.

(i) Logic and interlocking testing:
 Control Table (including Negative Testing).

 Cross Table (Square sheet).
(ii) Interface and Equipment functional Test:

 Intercommunication test between sub-racks,
 Correspondence test

(d) Tests to be performed in SAT (for alteration works):-

(a) When the existing ports (I/O and communication) are not disturbed,
the following tests, besides FAT, and any other tests as required, are
to be done;

(i) Logic and interlocking testing Control Table to the extent as
decided by the Zonal Railway.
(ii) Interface and Equipment functional Test:

 Correspondence test (new additions)
 Intercommunication test between sub-racks (if any new addition)

(b) When the existing ports (I/O and communication) are disturbed, the
following tests, besides FAT, and any other tests as required, are to
be done;

(i) I/O port correspondence check between Application logic and
Interface circuits.

(ii) Logic and interlocking testing Control Table to the extent as
decided by the Zonal Railway.
(iii) Interface and Equipment functional Test:

 Correspondence test (new additions)
 Intercommunication test between sub-racks (if any new addition)

Chapter 21: Relay & Electronic Interlocking Page 460 of 535