This parameter defines which synchronization source is appropriate for use in this transmission terminal. This attribute is characteristic of DCME. It falls in the TMN Configuration Category. It is a Read/Write attribute that has Enumerated Option values of Trunk_PRI_1,..., Tx_Trunk_PRI_12, Rx_Bearer_PRI_1, ..., Rx_Bearer_PRI_4, External_PRI_1, External_PRI_2, External_64kbps_1, External_64kbps_2, Internal_Clock The default value is: Comment: An External_PRI is a primary rate that is neither a bearer nor a trunk primary rate and is used only for synchronization. This parameter is critical to proper synchronization of the terminal and unless properly chosen can lead to service degradation. PRI = primary rate interface, Tx = transmit, Rx = receive. Reference: G.763 paragraph 5.7
Status in source: unspecified.
Names: clockSource
Technical details
{
"gdmo_kind": "ATTRIBUTE",
"definition": [
"clockSource",
"ATTRIBUTE",
"WITH",
"ATTRIBUTE",
"SYNTAX",
"G776-1ASN1DefinedTypesModule",
".",
"G776-1ClockSource",
";",
"MATCHES",
"FOR",
"EQUALITY",
";",
"BEHAVIOUR",
"clockSourceBehaviour",
";",
"REGISTERED",
"AS",
"{",
"g776-1Attribute",
"201",
"}",
";"
]
}- itu-formal
· Publisher's source file
Source location: GDMO::clockSource.Source version and references
Published package: ITU-T G.776.1 1998; file: g776.1.gdm.
Downloaded: 2026-10-19T21:39:26.661955+00:00. SHA-256:
5ae50a84226dd1e5cb4bf665e23f8f04d37db446e796cce208e85ce89aa62919{'kind': 'GDMO ATTRIBUTE', 'details': {'document': {'language': 'GDMO', 'prefix_proof': 'Unique ASN.1 definition in the same recommendation and edition'}, 'gdmo_kind': 'ATTRIBUTE', 'definition': 'clockSource ATTRIBUTE\r\n WITH ATTRIBUTE SYNTAX G776-1ASN1DefinedTypesModule.G776-1ClockSource;\r\n MATCHES FOR EQUALITY;\r\n BEHAVIOUR clockSourceBehaviour;\r\nREGISTERED AS {g776-1Attribute 201};', 'references': [{'url': 'https://www.itu.int/wftp3/Public/t/fl/itu-t/g/g776.1/1998/G776-1ASN1DefinedTypesModule.asn', 'scope': 'itu-t/g/g776.1/1998/G776-1ASN1DefinedTypesModule.asn', 'module': 'G776-1ASN1DefinedTypesModule', 'sha256': '2bd5cd7116988e8d2776b6d39a9919569c714d78857af31bc676eb2b9a82682e'}]}, 'parser_version': 'formal-3-q5'}