| 摘要 |
A time slave station includes a synchronization error detecting unit that includes: a CW synchronization error detecting counter that counts a synchronization correction cycle of a transmission path in which a frame is transmitted in a first direction; a CCW synchronization error detecting counter that counts a synchronization correction cycle of a transmission path in which a frame is transmitted in a second direction; a CW synchronization-enabled time period timer that counts a CW synchronization frame reception-enabled time period; a CCW synchronization-enabled time period timer that counts a CCW synchronization frame reception-enabled time period; a CW-based synchronization error determining unit that determines whether the CW synchronization frame is received in the CW synchronization frame reception-enabled time period; and a CCW-based synchronization error determining unit that determines whether the CCW synchronization frame is received during the CCW synchronization frame reception-enabled time period. |
