EXFO FTB-800 Series for FTB-1 - Manual (Page 351)

Test Results
NetBlazer 341
Summary (1588 PTP)

GM Info
Note: Only available when Grand Master clock information is available.
The Grand Master Information window displays the decoded clock
information.

Identity report the 8-byte identification code of the Grand Master
Clock.

Clock Class reports the description and code of the Grand Master
Clock Class.

Clock Mode reports the description of the Grand Master Clock
Mode: Two-step or One-step.

Start Time indicates the time the test was started.
Code Description
0-5, 8-12, 15-51, 53-57, 59-67, 123-132,
171-186, 188-192, 194-215, 233-247, 249-254
Reserved
6 Sync to primary reference
7, 14 Holdover
13 Sync to application-specific reference
52, 58, 187, 193 Degraded
68 to 79, 81-109 (odd values), 11-122,
133-170, 216-232
Alternate PTP profiles
80-110 (even values)
a
a. Refer to QL table on page 319 for the list of Quality Level values that will be used as the description.
Quality Level (QL-xxx
a
)
248 Default
255 Slave only