363-206-285
Transmission and Synchronization Interfaces
Issue 3 June 2001
5-33
Figure 5-19. Synchronization Timing Configurations (Sheet 2 of 2)
DDM-2000 DDM-2000
CO
Clock Source
(Stratum 3 or better)
(Stratum 3 or better)
DS1 DS1
External Clock
CO
DDM-2000 DDM-2000
CO
Clock Source
(Stratum 3 or better)
(Stratum 3 or better)
May be Plesiochronous
DS1 DS1
External Clock
CO
DS1 Timing Output
(Optional BBF2B)
(d) External Timing Plesiochronous (BBF2B)
DS1/DS3/EC-1 DS1/DS3/EC-1
DS1/DS3/EC-1 DS1/DS3/EC-1
(c) External Timing At Both Ends Configuration
OC-N
OC-N
tpa 820927/01
TG
TG
TG
TG
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