CXR Larus 80-100-400 2-10
Issue
1,
July
2006
_____________________________________________________________
_
Table 2-B
E1 Clock Performance*
Type
Accuracy,
Adjustment
Range
Pull-in
Range
Stability
Calculated
Time To First
Frame Slip
Primary
Reference
Clock
1 x 10
-11
N/A
N/A
>70 days
Transit
Node
Clock
N/A
Not specified
Initial frequency
offset of
5 x 10
-10
Frequency
drift of
1 x 10
-9
/day
28 hours
Local
Node
Clock
N/A
Not specified
Initial frequency
offset of
1 x 10
-8
Frequency
drift of
2 x 10
-8
/day
2.8 hours
* Per ITU-T G.811 for PRC, ITU-T G.812 for TNC and LNC.
