ABB REB670 Applications Manual page 528

Section 20
Basic IED functions
522
Setting example
GPS
PTP
Station bus
PTP
REC
PTP
9-2
Process bus
9-2
SAM600-TS
SAM600-CT
SAM600-VT
IEC16000167 V1 EN-US
Figure 217: Example system
Figure 217 describes an example system. The REC and REL are both using the 9-2
stream from the SAM600, and gets its synch from the GPS. Moreover, the REL and
REC both acts as a boundary clock to provide synch to the SAM600. The REL
contains a GTM card, which has a PPS output that is used to synchronize merging units
that are not PTP compliant. As a side effect, the GTM contains a GPS receiver and the
REL acts as a backup of the GPS on the station bus.
On all access points, the PTP parameter is "ON".
On the REL, the parameter FineSyncSource (under Configuration/Time/
Synchronization/TIMESYNCHGEN:1/General) is set to "GPS" if there is a GPS
antenna attached.
If the GTM is used as a PPS output only, the FineSynchSource is not set.
PTP
REL GTM
PTP 9-2
9-2
PPS
9-2
MU
IEC16000167-1-en.vsdx
1MRK 505 370-UUS A
Busbar protection REB670 2.2 ANSI
Application manual