What Frequencies should be used for testing SyncE Wander Tolerance?

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
(ns)

Test Time
(Cycles)

Test Time
(s)

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 Tolerance using Tones: Enhanced (Tolerance Level 1)

Parameters used:

  • Measured at each corner point in G.8261/Figure 17
  • At least one point per decade


Frequency (Hz)

MTIE Observation Interval (s)

Amplitude

(ns)

Test Time

(Cycles)

Test Time

(s)

3.2

0.1

50

1500

150

0.32

1

50

150

150

0.53

6

300

20

154

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

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
(ns)

Test Time
(Cycles)

Test Time
(s)

3.2

0.1

300

480

150

0.32

1

303

150

150

0.032

10

325

8

250

0.0032

100

550

4

1250

0.0011

280

1000

3

2727

0.00032

1000

1007

3

9375

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