Role of IRIG-B in the filed of Network Time Synchronization
IRIG-B Extraction:
IRIG-B(Inter-Range Instrumentation Group and B preceding with the IRIG is representing the common time code used).
IRIG-B Definition:
IRIG-B is a special type of time synchronization standard used in Substation device/network devices which cannot support IEEE1588-PTP synchronization.It can be used to synchronize different types of IED's and network devices in a substation network.
IRIG-B coding for synchronization of existing devices that are not cable of synchronized with IEEE1588 PTP packets and allowing them to be synchronized with the new age networks.
How IRIG-B Works:
In IEEE1588,synchronization information's are passed over the Ethernet medium as data packets (IP Packets).But in existing (old-age) devices are not able to handling such 1588 padded information.So at the network edge (Ethernet Router/Swithes inbuilt devices).These network edge device will be having the IRIG-B protocol which will code Synchronization information in the format of IRIG-B.
Accuracy:
Accuracy of IRIG-B timing prototcol in IED's will be in the range of 100 microsecond.
Implementation & Draw Back:
A dedicate Coax-or Twisted pair cable required to transport the IRIG-B timing information.
Draw back: Connectivity is limited to less number of devices due to the dependency in Coax length.Also maintenance and deployment cost are high when we compared with IEEE1588-time synchronization.
IRIG-B Extraction:
IRIG-B(Inter-Range Instrumentation Group and B preceding with the IRIG is representing the common time code used).
IRIG-B Definition:
IRIG-B is a special type of time synchronization standard used in Substation device/network devices which cannot support IEEE1588-PTP synchronization.It can be used to synchronize different types of IED's and network devices in a substation network.
IRIG-B coding for synchronization of existing devices that are not cable of synchronized with IEEE1588 PTP packets and allowing them to be synchronized with the new age networks.
How IRIG-B Works:
In IEEE1588,synchronization information's are passed over the Ethernet medium as data packets (IP Packets).But in existing (old-age) devices are not able to handling such 1588 padded information.So at the network edge (Ethernet Router/Swithes inbuilt devices).These network edge device will be having the IRIG-B protocol which will code Synchronization information in the format of IRIG-B.
Accuracy:
Accuracy of IRIG-B timing prototcol in IED's will be in the range of 100 microsecond.
Implementation & Draw Back:
A dedicate Coax-or Twisted pair cable required to transport the IRIG-B timing information.
Draw back: Connectivity is limited to less number of devices due to the dependency in Coax length.Also maintenance and deployment cost are high when we compared with IEEE1588-time synchronization.
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