The link UP/DOWN function can generate pseudo-link DOWN conditions which can be used to make periodic swap evaluations of cables and verify operations when there is transmission channel interference. It is also possible to detect and display the link DOWN on the statistical monitor.

Sample of link UP/DOWN settings

Sample display of link down detection

AE5523 can vary the transmitting clock within a ±100 ppm range. This function can verify network equipment malfunctions and margins due to clock variations beforehand.

Clock adjustment

Sample Send/Receive clock frequency deviation measurements

The automatic negotiation function can automatically differentiate the communication speed (10 M/100 M/1000 M) between instruments and the communication modes (full duplex/half duplex communication) and can make optimum settings. Communication speed and modes, and the ON/OFF of flow control can be set manually as well.

Setting for Automatic Negotiation

The AE5520 and AE5523 have a built-in Auto MDI/MDI-X function which automatically detects the type of connected cable (straight/cross) to avoid problems due to mistakes in wiring.

The AE5522 supports the Link Fault Signaling (LFS) function, which notifies faults on a physical layer 10 Gigabit Ethernet ports. It can display the number of transmitting/receiving and detections of Local Fault (LF) and Remote Fault (RF). It is effective in identifying causes of physical faults as it can capture data by triggering LF and RF.

Transmitting LF and RF

Sample chart showing the number of LF/RF detections

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