STRAT-3 (Stratum-3 Clock)
Issue 1 June 2005 2129
Figure 122: Stratum-3 Clock Hardware Configuration
Tone-
Clock
TN780
Tone-
Clock
TN780
TOC
DS1
Ref A
PAI
Alarms
PPN
DS1
Ref B
TOC
ST3 ST3
CI CI
A B
A
A
B
B
DS1
TN464
TN767
or
TN722
DS1
TN464
TN767
or
TN722
Timing output Timing output
-48V
-48V