Information about the synchronous interface timing. Entries are created by user. Entries are deleted by user. Note that the first Alcatel 7x50 SR series product release does not support configuration of synchronous timing equipment on the secondary CPM. All SNMP operations with tmnxCpmCardSlotNum of the secondary CPM will be denied.

The 7x50 systems supports 3 timing references (reference1, reference2 and bits).

The 7710 system only supports 2 timing references (reference1 and reference2). On 7710 system, references can be a source port or a BITS input on a CES CMA. If the value of the reference source port is a valid Port ID then the reference is a source port. If the value of the source hardware is a valid HWIndex of a CES CMA then the source is a BITS on the CES CMA.