Sagem ADR 155C manual Synchronization from the 2 MHz external sync input T3

2 - OPERATION

The following figures give typical synchronization examples according to equipment connections.

2 MHz external sync input (T3):

-Quality = PRC,

-Priority = 1.

ADR155C 1

Internal

synchronization

T0 = T3

STM-1port (T1-C):		STM-1port (T1-C):
-	Quality = DNU	-	Quality = DNU
-	Priority = 2.	-	Priority = 2.

		ADR155C 2
T1-C = T0 = T3	SSM = PRC		T1-C = T0 = T3 (ADR155C1)
		T0 = T1-C

	2 MHz clock output
	T4= T0 = T3 (ADR155C1)
ADR155C 3	Synchronization
	of other equipments
	SSM = PRC
T0 = T1-c

2 MHz clock output

T4= T1-N

Synchronization

of other equipments

Figure 2-1 - Synchronization from the 2 MHz external sync input (T3)

2 Mbit/s port (T2):

-Quality = PRC,

-Priority = 1.

STM-1port (T1-C):		STM-1port (T1-C):
-	Quality = DNU	-	Quality = DNU
-	Priority = 2.	-	Priority = 2.

ADR155C 1			ADR155C 2	T1-C = T0 - T1-c (West)
	T1-C = T0 = T2	SSM = SEC
Internal
			T0 = T1-C West
				or T2 (ADR155C1)
synchronization
T0 = T2
			2 MHz clock output
			T4= T0 = T1c West
		ADR155C 3	Synchronization

of other equipments

SSM = SEC

T0 = T1-c

2 MHz clock output

T4= T1-N

Synchronization

of other equipments

NOTE : Synchronization is applied to the 2 Mbit/s port of the ADR155C which is enabled first (local ADR155C in the example).

Figure 2-2 - Synchronization from a 2 Mbit/s port

Installation and User Guide - N56717020101

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