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Technical Manual
GE Reason H49
30
H49/EN M/C22
4.6
Standard Switch
Reason H49 can be configured as a standard Ethernet Switch. In this case, it manages
up to six Ethernet ports.
Reason H49 using auto-negotiation:
•
Automatically determines the speed of transmission on the 10/100/1000 Base
ports according to the following standards:
IEEE 802.3u – 100BaseTX, 100BaseFX
IEEE 802.3ab – 1000BaseTX
IEEE 802.3z – 1000BaseLX, 1000BaseSX
•
Determines whether communication is half-duplex or full-duplex, and adapts
accordingly.
Addressing:
•
Each Ethernet device inserts its unique “MAC address” into each message it
sends.
•
The receiving port automatically recognizes the MAC address in a received frame
and stores it.
•
Once an address is recognized and stored, the switch will forward frames to the
appropriate port.
•
Up to 512 MAC addresses can be stored and monitored at any time.
4.7
Time Synchronization
Reason H49 supports real-time clock synchronization for the timestamp of logs or
events through the following network protocols:
•
Precision Time Protocol (PTP in accordance with IEEE/IEC 61588 (2009))
•
Network Time Protocol (NTP).
The time protocol used is independent of the network architecture (HSR or PRP).
Thus, the time server can be placed in either the HSR ring or one of the PRP LANs.
It is important to emphasize that the time server shall be placed in a VDAN device; in
other words, it shall be linked to the network through a RedBox.
Note:
The Reason H49 switch does not support Spanning Tree Protocol (STP, RSTP, MSTP).
Содержание Reason H49
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