AT-FS232 and AT-FS232/x Series Installation Guide
11
Note
MissingLink and Smart MissingLink are disabled when you perform a
link test. Consequently, to ensure that MissingLink or Smart
MissingLink is enabled on the bridging converter, always set the Mode
Selection button so that the ML or SML LED is green during normal
network operations.
Smart MissingLink
The Smart MissingLink feature performs exactly the same function as
MissingLink with one additional feature. When a link is lost on a port, the
LNK LED of the port which still has a valid connection to its end-node starts
to blink. This allows you to quickly determine which port still has a valid
connection (LNK LED blinking) and which port has lost its connection (LNK
LED off).
For example, if the network twisted pair cable to the 10Base-T/100Base-TX
port on the bridging converter were to fail, the LNK LED on the 100Base-FX
fiber optic port will blink, indicating a failed connection on the twisted pair
port. If the failure had started with the fiber optic cabling, the LNK LED on
the twisted pair port would blink.
The value to this type of network monitoring and fault notification is so that
you can quickly see which port has failed and troubleshoot your network
accordingly.
Bridging Converter Performance
The bridging converters perform at:
❑
148,800 pps for 100 Mbps and 14,880 pps for 10 Mbps for full wire
speed forwarding and filtering
❑
200 Mbps maximum throughput in 100 Mbps, full-duplex mode
❑
20 Mbps maximum throughput in 10 Mbps, full-duplex mode
❑
Storage for up to 4,000 MAC addresses
❑
280 KB (per port) packet buffer
❑
Low latency 14.3
µ
s (64-byte packet, 100 Mbps full-duplex)
