Control, Transmission, and Synchronization Interfaces
Issue 8.0 July 2002
5-25
An FT-2000 OC-48 Add/Drop-Rings Terminal equipped with the LAA18 TG3
(DS1) circuit pack can also provide DS1 synchronization outputs to the office
BITS clock or other central office equipment (Figure 5-14).
For more information about platform timing modes, refer to "Platform
Synchronization" in this section.
Figure 5-14. Phase Locked/Phase Locked Configuration
[LAA18 TG3 (DS1) Circuit Pack]
FT-2000
Stratum 3 or better
OC-48
DS3
BITS
Clock
Central Office
Equipment
Other
FT-2000
Phase Locked
CO CO
DS3
Phase Locked