SyncE Wander Tolerance using Tones: Option 1 and Enhanced (Tolerance Level 2)
Note that for Enhanced SyncE clocks specified in G.8262.1, there are two tolerance levels; level 2 is the same as the tolerance for standard SyncE clocks as specified in G.8262.
Parameters used:
- Measured at each corner point in G.8262/Figure 7
- At least one point per decade
Frequency (Hz) | MTIE Observation Interval (s) | Amplitude | Test Time | Test Time |
|---|---|---|---|---|
10 | 0.032 | 250 | 1500 | 150 |
1 | 0.32 | 250 | 150 | 150 |
0.13 | 2.5 | 250 | 20 | 154 |
0.016 | 20 | 2000 | 4 | 250 |
0.0032 | 100 | 2000 | 4 | 1250 |
0.0008 | 400 | 2000 | 3 | 3750 |
0.00032 | 1000 | 5000 | 3 | 9375 |
SyncE Wander
...
...
Frequency
...
- Maximum bandwidth: 10Hz
- Minimum bandwidth: 1Hz
- Maximum gain peaking: 0.2dB
- Minimum gain In pass-band: -3dB
- Noise generation allowance: ±20ns
- Two points per decade, extending more than 2 decades below the -3dB point
- Sampling rate: 30Hz
...
...
(dB)
...
Min. Gain
(dB)
...
Max. Output Amplitude (ns)
...
Min. Output Amplitude (ns)
...
14.9
...
250
...
2235
...
150
...
-5.1
...
none
...
160
...
none
...
9.9
...
250
...
1485
...
150
...
-3.0
...
none
...
198
...
none
...
3.2
...
250
...
480
...
150
...
0.2
...
none
...
276
...
none
...
1
...
250
...
150
...
150
...
0.2
...
-3.00
...
276
...
156
...
0.32
...
250
...
48
...
150
...
0.2
...
-3.00
...
276
...
156
...
0.1
...
320
...
15
...
150
...
0.2
...
-3.00
...
348
...
206
...
0.032
...
2 | 0.1 | 50 | 1500 | 469 |
|---|---|---|---|---|
0.32 | 1 | 50 | 150 | 150 |
0.053 | 6 | 300 | 15 | 283 |
0.032 | 10 | 300 | 4 | 250 |
0.0032 | 100 | 300 | 4 | 1250 |
0.00032 | 1000 | 300 | 3 | 9375 |
Wander Tolerance based on a chain of enhanced clocks:
Figure 17/G.8261 - Network limit for wander (MTIE) at enhanced synchronous equipment clock interfaces
SyncE Wander Tolerance using Tones: Option 2
More information regarding how the tones were selected can be found: G.8262: Wander Tolerance and Transfer for Option II Clocks
Parameters used:
- Tone amplitudes equal to MTIE mask value at the relevant observation interval of G.824/Figure 3
- At least one point per decade
Frequency | MTIE Observation Interval (s) | Amplitude | Test Time | Test Time |
|---|---|---|---|---|
3.2 | 0.1 | 300 | 480 | 150 |
0.32 | 1 | 303 | 150 | 150 |
0.032 | 10 | 325 | 8 | 250 |
0. |
...
-3.00
...
1044
...
...
...
2000
...
4
...
400
...
0.2
...
-3.00
...
2067
...
...
...
...
...
...
0.2
...
-3.00
...
2067
...
9375 |
On this page:
Table of Contents