MTP, LEVEL 2

TEST NUMBER:	1.15	PAGE:	1 OF 1		
REFERENCE:	Q.703 §§ 7, 8	STD: Fig. 8			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Set and clear LPO when “aligned ready”			
PURPOSE:	To test the response to LPO when “aligned ready” and to ensure that the aligned ready state resumes when LPO is cleared.			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B			SP		A	
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0	SIOS	--------------------------->		
				: 	start	
	<--------------------------	1 – 0			SIO	
1 – 0	SIO	--------------------------->		
	<--------------------------	1 – 0			SIN	
			
1 – 0	SIN	--------------------------->		
	<--------------------------	1 – 0			FISU	
				:	set LPO	
	<--------------------------	1 – 0			SIPO	
				:	wait 5 secs.	
				:	clear LPO	
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Start link at A.		
2.	At “aligned ready” state set LPO at A.
(Suppress return of FISUs at B to maintain “aligned ready” state).		
3.	Clear LPO at A.		
4.	Check A resumes “aligned ready” state.		

MTP, LEVEL 2

TEST NUMBER:	1.16	PAGE: 	1 OF 1		
REFERENCE:	Q.703 §§ 7, 8	STD: Fig. 8			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE: 	Timer T1 in “aligned not ready” state			
PURPOSE:	To test the operation of Timer T1 when in the “aligned not ready” state.			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION: 	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP	B			SP		A	
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0	SIOS	--------------------------->		
				:	set LPO	
				:	start	
	<--------------------------	1 – 0			SIO	
1 – 0	SIO	 --------------------------->		
	<--------------------------	1 – 0			SIN	
1 – 0	SIN	 --------------------------->		
	<--------------------------	1 – 0			SIPO	
						
	<--------------------------	1 – 0			SIOS	
			
TEST DESCRIPTION			
1.	Set LPO and start link at A.		
2.	Check A enters the “aligned not ready” state.		
3.	Check A takes the link out of service after time T1.		
4.	Timer T1 shall be in the range 40 secs to 50 secs.		
			
MTP, LEVEL 2

TEST NUMBER:	1.17	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	No SIO sent during normal proving period			
PURPOSE:	To ensure that normal alignment still occurs when SIO is omitted			
PRE–TEST CONDITIONS:	Link out of Service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B			SP		A	
Link	Link		
	<---------------------------	1 – 0			SIOS	
1 – 0	SIOS	 ---------------------------->		
					:	start	
	<---------------------------	1 – 0				SIO not aligned	
1 – 0	SIN	 ---------------------------->		
	<---------------------------	1 – 0				SIN	

1 – 0	SIN	

 ---------------------------->					
					
	<---------------------------	1 – 0				FISU	
			
TEST DESCRIPTION			
1.	Check normal alignment occurs with no SIO sent from SP B.		

MTP, LEVEL 2

TEST NUMBER:	1.18	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 8			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Set and cease emergency prior to “start alignment”			
PURPOSE:	To test the normal proving period is employed having “emergency” set and cleared			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B			SP	A	
Link	Link		
	<--------------------------	1 – 0		SIOS	
1 – 0	SIOS	 --------------------------->		
				:	set Em	
				:	clear Em	
				:	start	
	<--------------------------	1 – 0			SIO	
1 – 0	SIO	 --------------------------->		
	<--------------------------	1 – 0			SIN	
1 – 0	SIN	 --------------------------->					
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Check emergency set and cleared prior to start of alignment.		
2.	Check normal proving period is carried out.		

MTP, LEVEL 2

TEST NUMBER:	1.19	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 8; Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Set emergency while in “not aligned state”			
PURPOSE:	To test that emergency proving can be set during normal initial alignment.			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT, CPT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B			PS		A	
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0	SIOS	 --------------------------->		
				:	start	
	<--------------------------	1 – 0			SIO	
				:	set EM	
1 – 0	SIO	 --------------------------->		
	<--------------------------	1 – 0			SIE	
1 – 0	SIN	 --------------------------->					
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Check that emergency proving period is used after set EM during normal initial alignment.		
2.	The timing of this test is critical, emergency must be set once the start command has been given and before SIO is received. (i.e. during Timer T2 operation).		
3.	At 64 kbit/s Timer T4 shall be in the range 0,4 sec to 0,6 sec (nominally 0,5 sec).		
4.	At 4,8 kbit/s, Timer T4 shall be in the range 6 secs to 8 secs (nominally 7 secs).		

MTP, LEVEL 2

TEST NUMBER:	1.20	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Set emergency when “aligned”			
PRE–TEST CONDITIONS:	To test that emergency proving period is used when emergency set prior to receiving SIN			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP	B			SP		A	
Link	Link		
	<----------------------------	1 – 0			SIOS	
1 – 0		SIOS	 ----------------------------->		
				:	start	
	<----------------------------	1 – 0			SIO	
1 – 0		SIO	 ----------------------------->		
	<----------------------------	1 – 0			SIN	
				:	set EM	
	<----------------------------	1 – 0			SIE	
1 – 0		SIN	 ----------------------------->					
	<----------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Check that emergency proving period is used after SIE sent during “aligned” state.		
2.	The timing of this test is critical. Emergency must be set once SIN has been sent but before Timer T3 expires.		

MTP, LEVEL 2

TEST NUMBER:	1.21	PAGE: 	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 8; Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Both ends set emergency			
PURPOSE:	To check the emergency alignment procedure and Timer T4 (Pe)			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B		SP	A		
Link	Link		
	<--------------------------	1 – 0		SIOS	
1 – 0	SIOS	--------------------------->		
				:	set EM	
				:	start	
	<--------------------------	1 – 0			SIO	
1 – 0	SIO	 --------------------------->		
	<--------------------------	1 – 0			SIE	
1 – 0	SIE	 --------------------------->					
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Check correct emergency alignment procedure is performed.		

MTP, LEVEL 2

TEST NUMBER:	1.22	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7 	STD: Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Individual end sets emergency			
PURPOSE:	To check emergency alignment procedure, Emergency set at the other end			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION: 	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B		SP		A		
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0		SIOS	--------------------------->		
1 – 0		SIO	 --------------------------->		
				: 	start	
	<--------------------------	1 – 0			SIO	
1 – 0		SIE	 --------------------------->		
	<--------------------------	1 – 0			SIN	
						
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Emergency alignment set at B.		
2.	Start alignment at A.		
3.	Check that alignment occurs with the emergency proving period.		

MTP, LEVEL 2

TEST NUMBER:	1.23	PAGE: 	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Set emergency during normal proving			
PURPOSE:	To test that setting emergency during normal proving stops normal proving and starts the emergency proving			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP			B		SP		A		
Link	Link		
	<---------------------------	1 – 0		SIOS	
1 – 0	SIOS	 ----------------------------->		
				:	start	
	<---------------------------	1 – 0		SIO	
1 – 0	SIO	 ----------------------------->		
	<---------------------------	1 – 0		SIN	
1 – 0	SIN	 ----------------------------->		
				:	set EM	
	<---------------------------	1 – 0		SIE	
1 – 0	SIN	 ----------------------------->					
	<---------------------------	1 – 0		FISU	
			
TEST DESCRIPTION			
1.	Set emergency during normal proving period at A.		
2.	Check A sends SIE.		
3.	Repeat test in reverse direction.		

MTP, LEVEL 2

TEST NUMBER:	1.24	PAGE:	1 OF 1		
REFERENCE:	Q.703 § 7	STD: Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	No SIO sent during emergency alignment			
PURPOSE:	To ensure that emergency alignment still occurs when SIE is received following SIOS			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B			SP		A	
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0	SIOS	 --------------------------->		
				:	set EM	
				:	start	
	<--------------------------	1 – 0			SIO	
1 – 0	SIE	 --------------------------->		
	<--------------------------	1 – 0			SIE	
						
	<--------------------------	1 – 0			FISU	
			
TEST DESCRIPTION			
1.	Set emergency and start link at A.		
2.	A receives SIE after sending SIO.		
3.	Check that link aligns OK after emergency proving.		

MTP, LEVEL 2

TEST NUMBER:	1.25	PAGE: 	1 OF 1		
REFERENCE:	Q.703 § 7      STD: Fig. 8; Fig. 9			
TITLE:	Link State Control – Expected signal units/orders			
SUB TITLE:	Deactivation during initial alignment			
PURPOSE:	To test the response to the receipt of the stop command while in the initial alignment state (initial alignment is Not Aligned State)			
PRE–TEST CONDITIONS:	Link out of service			
CONFIGURATION:	1	TYPE OF TEST:	VAT, CPT		
EXPECTED SIGNAL UNIT SEQUENCE:			
	SP		B		SP		A		
Link	Link		
	<--------------------------	1 – 0			SIOS	
1 – 0	SIOS	--------------------------->		
				: 	start	
	<--------------------------	1 – 0			SIO	
				:	wait 5 secs.	
				:	stop	
	<-------------------------- 	1 – 0			SIOS	
			
TEST DESCRIPTION			
1.	Check that alignment ceases after Stop command given.		
2.	The stop command must be issued before timer T2 expires.		
3.	Timer T2 shall be in the range 5 secs to 150 secs.